Pure nano calcium powder and method

Abstract

The invention relates to acid neutralizer technology, specifically involving a pure nano calcium powder and its preparation method, the nano calcium powder purity include the weight of the raw material: 3-7 parts pearl, 8-12 parts mother of pearl, 2-3 parts red coral, 20-30 parts oyster shell, clam shell 35-55 parts, Giant Clam 5-10 parts, pangolin shell 1-3 and 1-7 parts ore defined as limestone, cold water stone, and goose pipe rock. The preparation methods include cleaning, primary grinding, heat decomposition, rules grinding, nano grinding and mixing. Nano calcium pure powder of the present invention relates to the specific natural raw materials, and strict control of the nano calcium powder purity can provide human body absorption rates over 99%. The preparation method of the invention process is simple, convenient operation and control, stable quality, high yield, can be large-scale industrial production.

Claims

1. A method for large scale industrial production of pure nano calcium powder from raw materials including 3-7 parts pearl, 8-12 parts mother of pearl, 2-3 parts red coral, 20-30 parts oyster shells, 35-55 parts clam shell, 5-10 parts giant clam, 1-3 parts pangolin shell, and 3-7 parts ore, where ore is defined as limestone, cold water stone, and goose pipe rock in the weight ratio of 1.5:1.5:1.0 comprising the following steps, applied separately to each of said raw materials: A. sand-blasting each selected raw material to remove dirt and other contaminants from the surface of the raw material; B. grinding each cleaned raw material into small particles of 200-400 microns; C. heating said particles from step B to a decomposition temperature in inert gas; D. then grinding said particles, after heat decomposition, to a size of 30-50 microns; E. nanometer lapping the resulting particles until the particle size is reduced to about one nanometer; then F. mixing all the particles from step E for each raw material, to obtain the final pure nano calcium product.

2. A method as in claim 1 wherein step C for pearl includes first heating to 400 to 600 degrees C. for 1.5 to 2.5 hours, then heating to 800 to 1000 degrees C. for 0 5 to 1.5 hour; step C for mother of pearl includes first heating to 800 to 1000 degrees C. for 4.5 to 5.5 hours, then heating to 1700 to 1900 degrees C. for 4-5 hours; step C for red coral includes heating to 1000 to 1200 degrees C. for 6.5 to 7.5 hours, then heating to 1600 to 1800 degrees C. for 4.5 to 5.5 hours; step C for oyster shells includes heating to 700-900 degrees C. for 2-3 hours, then heating to 1600-1800 degrees C. for 1-2 hours; step C for clam shells includes heating to 500-700 degrees C. for 2.5 to 3.5 hours, then heating to 1700 to 1900 degrees C. for 1.5 to 2.5 hours; step C for giant clam includes heating to 600-800 degrees C. for 3-4 hours, then heating to 1800-2000 degrees C. for 1 hour; step C for pangolin shells includes first heating to 900-1100 degrees C. for 4.5 hours, then heating to 1300-1500 degrees C. for 3 to 4 hours; step C for limestone includes first heating to 1200-1400 degrees C. for 10-12 hours, then heating to 1800-2000 degrees C. for 2-3 hours; step C for cold water stone includes heating to 1000-1200 for 8-10 hours, then heating to 1700-1900 degrees C. for 1-2 hours; step C for goose pipe rock includes heating to 1200-1400 degrees C. for 9-11 hours, then heating to 1700-1900 degrees C. for 2-3 hours.

3. A method as in claim 1, further including the step of freeze drying each raw material at a temperature below 25 degrees C. after primary grinding.

Description

EXAMPLE 1

(1) A pure nano calcium powder is produced from a mixture of raw material as follows:

(2) Pearl 3 parts

(3) Mother of pearl 8 parts

(4) Red coral 2 parts

(5) Oyster shell 20 parts

(6) Clam shell 35 parts

(7) Giant Clam 5 parts

(8) Pangolin shell 1 part

(9) Ore 3 parts

(10) Ore includes limestone, cold water pipe rock stone and geese to the weight ratio of 1.5:1.0.

(11) A method for the preparation of nanometer calcium pure powder includes the following steps:

(12) A. Cleaning: the selected raw materials are subjected to high pressure sand blasting to remove dirt from the surface of the raw materials;

(13) B. Primary grinding: grinding materials after cleaning into 200 micron particles;

(14) C. Heat decomposition: in inert gas particles after the primary grinding heat decomposition;

(15) D. Rules grinding: grinding after heat decomposition of the particles into the 30 microns particles;

(16) E. Nanometer lapping: the rules after grinding particle grinding into 0.1 nm nano particles;

(17) F. Mixing: mixing ratio of each raw material particles according to the weight, the obtained nano calcium powder purity.

(18) Described in step A, high-pressure sandblasting using natural sand or pieces of granite, mixed 8% of the water, the pressure for 75 psi, the velocity of 1.0 gallons per minute for raw materials for jet nozzle, the injection time for 5 min.

(19) As described in steps B and C include steps B1: freeze drying: after primary grinding of raw materials in freeze drying under 25 C., temperature.

(20) Described in step C, pearl is first heated to 400 C. heat decomposition 1.5 h, then heated to 800 C. heating 0.5 h;

(21) Mother of pearl is first heated to 800 C. heat decomposition 4.5 hours, then heated to 1700 C. for 4 hours;

(22) Red coralis first heated to 1000 C. heat decomposition for 6.5 hours, then heated to 1600 C. for 4.5 hours;

(23) Oyster shells are first heated to 700 C. for heat decomposition 2 hours, then heated to 1600 C. for 1 hour;

(24) Oyster shells are first heated to 500 C. for heat decomposition 2.5 h, then heated to 1700 C. for 1.5 hour;

(25) Giant Clam is first heated to 600 C. heat decomposition 3 hour, then heated to 1800 C. heating 1 hour;

(26) Pangolin scales and shells are first heated to 900 C. heat for 4 hours, then heated to 1300 C. for 3 hours.

(27) When the step C raw material is limestone, first heat to 1200 C. for 10 hours decomposition, then heat to 1800 C. for 2 hours; when the raw material is cold water stone, first heat to 1000 C. for 8 hours decomposition, then heat to 1700 C. for 1 hour; when the raw material is goose pipe rock, first heat to 1200 C. decomposition for 9 hours, then heat to 1700 C. for 2 hours.

EXAMPLE 2

(28) pure nano calcium powder, including the weight of the raw material as follows:

(29) Pearl 4 parts

(30) Mother of pearl 9 parts

(31) Red coral 2.2 parts

(32) Oyster shell 22 parts

(33) Clam shell 40 parts

(34) Giant Clam 6 parts

(35) Pangolin shell 1.5 parts

(36) Ore 4 parts

(37) Ore is defined as limestone, cold water pipe rock stone and geese to the weight ratio of 1.7:1.0.

(38) A method of the preparation of nanometer calcium pure powder includes the following steps:

(39) A. Cleaning: the selected raw materials, and adopt the way of high pressure sand remove dirt on the surface of the raw material;

(40) B. Primary grinding: grinding materials after cleaning into 250 micron particles;

(41) C. Heat decomposition: in inert gas particles after the primary grinding heat decomposition;

(42) D. Grinding: grinding after heat decomposition of the particles into the rules of the 35 micron particles;

(43) E. nanometer lapping: the rules after grinding particle grinding into 0.3 nm particles;

(44) F. mixing, mixing ratio of each raw material particles according to the weight, the obtained nano calcium powder purity.

(45) Described in step A, high-pressure sandblasting using natural sand or pieces of granite, mixed 9% of the water, the pressure for 77 psi, the velocity of 1.1 gallons per minute for raw materials for jet nozzle, the injection time is 6 min.

(46) As described in step B and C include steps between B1: freeze drying: after primary grinding of raw materials in freeze drying under 25 C. temperature. Described in step C, with pearl as the raw material, first heat to 450 C. heat decomposition for 1.7 hour, then heat up to 850 C. for 0.7 hour; when mother of pearl is the raw material, first heat to 850 C. for heat decomposition 4.7 hours, then heat to 1750 C. for 4.2 hours; when red coral is the raw material, first heat to 1050 C. for heat decomposition 6.7 hours, then heat to 1650 C. for 4.7 hours; when oyster shells is the raw material, first heat to 750 C. for heat decomposition 2.2 hours, then heat to 1650 C. for 1.2 hour; when clam shells is the raw material, first heat to 550 C. for heat decomposition 2.7 hours, then heat to 1750 C. for 1.7 hour; when giant clams is the raw material, first heat to 650 C. for heat decomposition 3.2 hours, then heat to 1850 C. for 1 hour; when pangolin scales and shells are the raw material, first heat to 950 C. for heat decomposition 4.2 hours, then heat to 1350 C. for 3.2 hours.

(47) Described in step C, raw material is limestone, first to heat up to 1250 C. heat decomposition 10.5 hour, then heat up to 1850 C. heating 2.2 hour; Raw material for cold water stone, the first heat up to 1050 C. heat decomposition 8.5 hour, then heat up to 1750 C. heating 1.2 hour;

(48) Raw materials for the goose pipe rock, the first heat up to 1250 C. heat decomposition 9.5 hour, then heat up to 1750 C. heating 2.2 hour.

EXAMPLE 3

(49) A pure nano calcium powder, including the weight of the raw material as follows:

(50) Pearl 5 parts

(51) Mother of pearl 10 parts

(52) Red coral 2.5 parts

(53) Oyster shell 25 parts

(54) Clam shell 45 parts

(55) Giant Clam 7.5 parts

(56) Pangolin shells 2 parts

(57) Ore 5 parts

(58) Ore is defined as limestone, cold water stone and goose pipe rock with a mixture of weight ratio of 2:1:1.

(59) A method of the preparation of nanometer calcium pure powder includes the following steps:

(60) A. cleaning the selected raw materials by high pressure sandblasting to remove dirt on the surface of the raw materials;

(61) B. grinding materials after cleaning, into 300 micron particles;

(62) C. heating the ground particles in inert gas after the primary grinding, to achieve heat decomposition;

(63) D. rules grinding after heat decomposition of the particles into the rules of 40 micron particles;

(64) E. nanometer lapping particles after grinding, into 0.5 nm particles;

(65) F. mixing ratio of each raw material particles according to the weight, the obtained nano calcium powder purity.

(66) As in step A, high-pressure sandblasting includes 10% natural sand or pieces of granite, mixed with water, a pressure of 80 psi, a flow rate of 1.3 gallons per minute for raw materials for injection nozzle, injection time for 7 min.

(67) Steps B and C include freeze drying after primary grinding of raw materials in freeze drying under 25 C. temperature.

(68) For processing pearl in step C, first heat up to 500 C. heat decomposition 2 hour, then heat up to 900 C. heating 1 hour;

(69) For processing mother of pearl, first heat to 900 C. for 5 hours decomposition, and then heat to 1800 C. heating 4.5 hours;

(70) For processing red coral, first heat to 1100 C. for 7 hours heat decomposition, and then heat up to 1700 C. for 5 hours;

(71) For processing oyster shells, first heat to 800 C. heat decomposition for 2.5 hours, then heat to 1700 C. for 1.5 hour;

(72) For processing clam shells, first heat to 600 C. heat decomposition for 3 hours, then heat to 1800 C. for 2 hours;

(73) For processing Giant Clam first heat to 700 C. heat decomposition 3.5 hours, then heat to 1900 C. for 1 hour;

(74) For processing pangolin scales and shells first heat to 1000 C. heat decomposition 4.5 hours, then heat to 1400 C. for 3.5 hours.

(75) For processing limestone in step C, first heat to 1300 C. for 11 hours, then heat to 1900 C. for 2.5 hours;

(76) For processing cold water stone, first heat to 1100 C. heat decomposition for 9 hours, then heat to 1800 C. for 1.5 hour;

(77) For processing goose pipe rock, first heat to 1300 C. heat decomposition for 10 hours, then heat to 1800 C. for 2.5 hours.

EXAMPLE 4

(78) A pure nano calcium powder, including the raw materials by weight as follows:

(79) Pearl 6 parts

(80) Mother of pearl 11 parts

(81) red coral 2.8 parts

(82) oyster shells 28 parts

(83) Clam shell 50 parts

(84) Giant Clam 9 parts

(85) Pangolin shell 2.5 parts

(86) Ore 6 parts

(87) Ore is defined as limestone, cold water stone and goose pipe rock to the weight ratio of 2:3:1.

(88) A method of the preparation of nanometer calcium pure powder includes the following steps:

(89) A. cleaning: the selected raw materials are sandblasted under high pressure, to remove dirt from the surface of each raw material;

(90) B. the primary grinding, grinding materials after cleaning into 350 microns particles;

(91) C. heat decomposition: heat in inert gas after the primary grinding;

(92) D. rules grinding: after the heat decomposition, the particles are reduced to 45 micron particles;

(93) E. nanometer lapping: the rules after grinding particle grinding into 0.7 nm nano particle;

(94) F. mixing, mixing ratio of each raw material particles according to the weight, to maintain nano calcium powder purity.

(95) Step A is high-pressure sandblasting using natural sand or pieces of granite, mixed 11% in water, the pressure for 83 psi, the velocity of 1.4 gallons per minute for raw materials for jet nozzle, the injection time is 8 min.

(96) As described in step B and C include steps between B1: freeze drying: after primary grinding of raw materials in freeze drying under 25 C. temperature. In step C, when the raw material is pearl, first heat to 550 C. for heat decomposition 2.3 hours, then heat to 950 C. for 1.3 hour; For processing mother of pearl, first heat to 950 C. heat decomposition for 5.3 hours, then heat to 1850 C. for 4.8 hours;

(97) For processing the red coral, first heat to 1150 C. for heat decomposition 7.3 hours, then heat to 1750 C. for 5.3 hours;

(98) For processing oyster shells first heat to 850 C. heat decomposition for 2.8 hours, then heat to 1750 C. heating 1.8 hour;

(99) For processing clam shells, first heat to 650 C. heat decomposition for 3.3 hours, then heat to 1850 C. for 2.3 hours;

(100) For processing Giant Clam, first heat to 750 C. heat decomposition for 3.8 hours, then heat to 1950 C. for 1 hour;

(101) For processing pangolin scales and shells, first heat to 1050 C. heat decomposition for 4.8 hours, then heat to 1450 C. for 3.8 hours.

(102) Described in step C, raw material is limestone, first heat to 1350 C. heat decomposition 11.5 hours, then heat to 1950 C. for 2.8 hours;

(103) For processing cold water stone, first heat to 1150 C. heat decomposition 9.5 hours, then heat to 1850 C. for 1.8 hour;

(104) For processing goose pipe rock, first heat to 1350 C. heat decomposition 10.5 hours, then heat to 1850 C. for 2.8 hours.

EXAMPLE 5

(105) A pure nano calcium powder, including the weight of the raw material as follows:

(106) Pearl 7 parts

(107) Mother of pearl 12 parts

(108) Red coral 3 parts

(109) Oyster shell 30 parts

(110) Clam shell 55 parts

(111) Giant Clam 10 parts

(112) Pangolin shells 3 parts

(113) Ore 7 parts

(114) Ore is defined as limestone, cold water stone and goose pipe rock in the weight ratio of 2.5:1:1.2 consisting of a mixture.

(115) A method of the preparation of nanometer calcium pure powder includes the following steps:

(116) A. cleaning the selected raw materials, by way of high pressure sandblasting to remove dirt from the surface of the raw materials;

(117) B. the primary grinding of raw materials, after cleaning, to obtain 400 micron particles;

(118) C. heat decomposition: in inert gas particles after the primary grinding heat decomposition;

(119) D. rules grinding, after heat decomposition of the particles into 50 micron particles;

(120) E. nanometer lapping to go from 50 micron particles down to 1 nm nanoparticles;

(121) F. mixing, mixing ratio of each raw material particles according to the weight, the obtained nano calcium powder purity.

(122) Step A includes high-pressure sandblasting with natural sand or pieces of granite, mixed 12% of the water, the pressure for 85 psi, the velocity of 1.5 gallons per minute for raw materials for jet nozzle, the injection time for 10 min.

(123) As described in step B and C include steps between B1: freeze drying: after primary grinding of raw materials in freeze drying under 25 C. temperature.

(124) For processing pearl, first heat to 600 C. heat decomposition for 2.5 hours, then heat to 1000 C. for 1.5 hour;

(125) For processing mother of pearl, first heat to 1000 C. heat decomposition for 5.5 hours, then heat to 1900 C. for 5 hours;

(126) For processing red coral first heat to 1200 C. for decomposition 7.5 hours, then heat to 1800 C. for 5.5 hours;

(127) For processing oyster shells first heat to 900 C. heating decomposition for 2.5 hours, and then heat up to 1800 C. for 2 hours;

(128) For processing Clam shells, first heat to 700 C. heat decomposition for 3.5 hours, then heat up to 1900 C. for 2.5 hours;

(129) For processing Giant Clam first heat to 800 C. heat decomposition for 4 hours, then heat to 2000 C. for 1 hour;

(130) For processing pangolin scales and shell, first heat to 1100 C. heat decomposition 5 hours, then heat to 1500 C. for 4 hours.

(131) For processing limestone in step C, first heat to 1400 C. heat decomposition 12 hours, then heat to 2000 C. for 3 hours;

(132) For processing cold water stone, first heat to 1200 C. heat decomposition 10 hours, then heat to 1900 C. for 2 hours;

(133) For processing goose pipe rock, first heat to 1400 C. for 11 hours heat decomposition, and then heat to 1900 C. for 3 hours.

EXAMPLE 6

(134) In this example differs with the above example 1: ore is described by the stalactites, calcite and goose pipe rock to weight ratio 2:1. 2:1 consisting of a mixture.

(135) In step C, for processing stalactites, first heat to 1100 C. heat decomposition 9 hours, then heat to 1600 C. for 2.5 hours;

(136) For processing calcite, first heat to 1100 C. heat decomposition 8 hours, then heat to 1600 C. for 1.5 hours;

(137) For processing goose pipe rock, first heat to 1200 C. heat decomposition 9 hours, then heat to 1700 C. for 2 hours.

EXAMPLE 7

(138) This example and the difference is that in the above example 2: ore is described by the stalactites, calcite and goose pipe rock to the weight ratio of 2.2:1.3:1 consisting of a mixture.

(139) For processing in step C, stalactites are first heated to 1150 C. heat decomposition 9.5 hours, then heat to 1650 C. for 2.7 hours;

(140) For processing calcite, first heat to 1150 C. heat decomposition 8.5 hours, then heat to 1650 C. for 1.7 hours;

(141) For processing goose pipe rock, first heat to 1250 C. heat decomposition 9.5 hours, then heat to 1750 C. for 2.2 hours.

EXAMPLE 8

(142) In this example and the difference is that in the above example 3: ore is described by the stalactites, calcite and goose pipe rock to the weight ratio of 2.5:1.5:1 as a mixture.

(143) In step C, stalactites are first heated to 1200 C. heat decomposition 10 hours, then heated to 1700 C. for 3 hours;

(144) For processing calcite, first heat to 1200 C. heat decomposition 9 hours, then heat to 1700 C. for 2 hours;

(145) For processing the goose pipe rock, first heat to 1300 C. heat decomposition for 10 hours, then heat to 1800 C. for 2.5 hours.

EXAMPLE 9

(146) In this example and the difference is that in the above example 4: ore is described by the stalactites, calcite and goose pipe rock to the weight ratio of 2.8:1.7:1 as a mixture.

(147) In step C, stalactites are first heated to 1250 C. heat decomposition 10.5 hours, then heated to 1750 C. for 3.3 hours;

(148) For processing calcite, first heat to 1250 C. heat decomposition 9.5 hours, then heat to 1750 C. for 2.3 hours;

(149) For processing the goose pipe rock, first heat to 1350 C. heat decomposition 10.5 hours, then heat to 1850 C. for 2.8 hours.

EXAMPLE 10

(150) This example and the difference is that in the above example 5: ore is described by the stalactites, calcite and goose pipe rock to weight than 3:1.8:1 as a mixture.

(151) In step C, for processing stalactites, first heat to 1300 C. heat decomposition 11 hours, then heat to 1800 C. for 3.5 hours;

(152) For processing calcite, first heat to 1300 C. heat decomposition 10 hours, then heat to 1800 C. for 2.5 hours;

(153) For processing the goose pipe rock, first heat to 1400 C. heat decomposition for 11 hours, and then heat to 1900 C. for 3 hours.

(154) A) Removal Effect of Pesticide Residues Experiment:

(155) (1) the test object: methamidophos, DDT, fonofos and chlordane and mirex;

(156) (2) experimental process: the configuration of a certain concentration of pesticide solution, evenly divided into 11; Were added to the preparation of superfine calcium powder ratio 1 and implementation example 1-10 of the preparation of nano calcium powder, pure test removal effect of pesticide residues, the results are shown in table 1.

(157) TABLE-US-00001 TABLE 1 Control Test Test Test Test Test Test Test Test Test Test Group Group Group Group Group Group Group Group Group Group Group Test Item 1 (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) Methamidophos 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% elimination rate DDT 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% elimination rate Fonofos 97% 99% 99% 100% 100% 99% 99% 100% 100% 99% 99% elimination rate Chlordane 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% elimination rate Mirex 97% 100% 100% 100% 100% 99% 99% 100% 100% 100% 100% elimination rate

(158) Can be seen from table 1, the application of nano calcium pure powder to remove pesticide residues effect compared with contrast files of superfine calcium powder, the effect is better, especially for the removal rate of fonofos and mirex, effect is significantly enhanced relative comparative documents. This is mainly because the application of nano calcium powder purity for nanoscale, for grinding after the molecular increases the intermolecular forces make the molecules more active, the effect is better, increase the acid neutralizer and acid compounds molecular contact scope, therefore, to obtain a better acid neutralizing effect.

(159) B. Heavy Metal Mercury Removal Experiments:

(160) (1) the test object: mercury;

(161) (2) experimental process: 100 mu g/L of mercury solution, divided into 11, each 500 ml; Were added to the preparation of superfine calcium powder ratio 1 and implementation example 1-10 of the preparation of nano calcium powder purity 0.25 grams, oscillation 5-10 min let stand, detection is removal rate, the results are shown in table 2.

(162) TABLE-US-00002 2 Control Test Test Test Test Test Test Test Test Test Test group group group group group group group group group group group Test Item 1 (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) Mercury 84% 94% 95% 96% 95% 95% 94% 95% 96% 96% 95% elimination rate

(163) Can be seen from table 1, the application of nano calcium powder purity of mercury removal rate compared with contrast files of superfine calcium powder.

(164) C. The Bacteriostatic Effect of Experiment:

(165) (1) the test object: the colony count in the water;

(166) (2) the experiment process: prepare medium of 11, respectively for preparation of superfine powder and calcium ratio 1 case 1-10 of the preparation of nano calcium powder configured for the mass fraction of 0.5% pure calcium powder suspension, and spray on the culture medium, test results as shown in table 3.

(167) TABLE-US-00003 Control Test Test Test Test Test Test Test Test Test Test group group group group group group group group group group group Test Item 1 (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) After 3 <100 <50 <50 <50 <50 <50 <50 <50 <50 <50 <50 minutes the bacteria elimination rate. (3 min (CFU/mL) After 5 0 0 0 0 0 0 0 0 0 0 0 minutes the bacteria elimination rate (5 min (CFU/mL)

(168) Can be seen from table 3, the application of the nanometer calcium pure powder has a more rapid sterilization effect, and time is short, lasting effect is good.

(169) D. Clean Fruit Effect Experiment:

(170) (1) the test object: cherry tomato

(171) (2) experimental process: prepare cherry tomatoes two parts, one water washing, another one spraying in the above example 3 after the preparation of nano calcium powder, with clean water, taste the product, found A astringency, B no acerbity and has special sweet. This is mainly because that the shell itself is fresh material, and through this process has the bacteriostasis to the effect of acid, makes cherry tomatoes taste better.

(172) The invention of the nano calcium powder, sprayed on fruits and vegetables can enhance the shelf life of products above, this is mainly formed from a natural layer of protective film, because calcium powder is more small, can form protective film, and closer and because shell has the effect of fresh, shell powder sprayed the fruit and vegetable surface can effectively lift the fruits and vegetables fresh.

(173) TABLE-US-00004 Control Test Test Test Test Test Test Test Test Test Test group group group group group group group group group group group Test Item 1 (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) Human body 53% 99% 99% 100% 99% 99% 99% 99% 100% 100% 99% absorption rate

(174) E. Of the Human Body Absorption Test

(175) Will have on the proportion of superfine calcium powder preparation and implementation example 1 1-10 of the preparation of nano calcium powder purity for human absorption test, the results as shown in table 4.

(176) Nanocalcium pure powder of the present invention to the specific natural raw materials, and strictly control the proportion of nano calcium powder purity can make human body the absorption rate reaches over 99%. The preparation method of the invention process is simple, convenient operation and control, stable quality, high yield, can be large-scale industrial production.

(177) In the above example of the invention better implementation scheme, in addition to this, the present invention can also be the other way, on the premise of not out of the present invention idea any obvious replacement within the scope of protection of the present invention.