C05B19/02

MANUFACTURE OF FERTILISER

Provided is a method of manufacturing phosphate fertilizer that comprises dicalcium phosphate, the method comprising providing milled phosphorus-containing rock having a total phosphorus content of at least about 15% P by weight, mixing the milled phosphate-containing rock with a mineral acid in a reaction vessel to produce a superphosphate product, and mixing the superphosphate product with a calcium-source reverting agent and a magnesium-source reverting agent to produce a reverted product, the calcium-source reverting agent comprising at least about 20% by weight of the total reverting agent of calcium oxide with a calcium carbonate equivalence of at least about 134%, and the magnesium-source reverting agent providing a magnesium source and comprising at least about 20% by weight of the total reverting agent of magnesium source with a calcium carbonate equivalence of at least about 80%, to produce a granulated cured reverted product having a product yield of at least about 1.90 or of at least about 1.77, and a moisture content of less than 3%.

MANUFACTURE OF FERTILISER

Provided is a method of manufacturing phosphate fertilizer that comprises dicalcium phosphate, the method comprising providing milled phosphorus-containing rock having a total phosphorus content of at least about 15% P by weight, mixing the milled phosphate-containing rock with a mineral acid in a reaction vessel to produce a superphosphate product, and mixing the superphosphate product with a calcium-source reverting agent and a magnesium-source reverting agent to produce a reverted product, the calcium-source reverting agent comprising at least about 20% by weight of the total reverting agent of calcium oxide with a calcium carbonate equivalence of at least about 134%, and the magnesium-source reverting agent providing a magnesium source and comprising at least about 20% by weight of the total reverting agent of magnesium source with a calcium carbonate equivalence of at least about 80%, to produce a granulated cured reverted product having a product yield of at least about 1.90 or of at least about 1.77, and a moisture content of less than 3%.

One-Off Fertilization Method Suitable for Winter Wheat in Areas with Less Rainfall in Spring

A one-off fertilization method suitable for winter wheat in areas with less rainfall in spring includes the following steps: (1) carrying out, on a flat wheat block which is suitable for mechanized operations and after the harvest of preceding crops, a deep ploughing or a subsoiling in combination with a rotary tillage and a one-off fertilization for land preparation, without involving any top dressing in a later stage; and (2) carrying out a seeding operation by a wheat seeder, wherein for nitrogen fertilizer, according to the nitrogen release period of a controlled-release nitrogen fertilizer, one of the following application modes is determined: applying a polyurethane-coated controlled-release nitrogen fertilizer alone or a water-based resin-coated controlled-release nitrogen fertilizer special for winter wheat alone; or applying a water-based resin-coated controlled-release nitrogen fertilizer special for winter wheat in combination with 20% to 30% of a polyurethane-coated controlled-release nitrogen fertilizer.

One-Off Fertilization Method Suitable for Winter Wheat in Areas with Less Rainfall in Spring

A one-off fertilization method suitable for winter wheat in areas with less rainfall in spring includes the following steps: (1) carrying out, on a flat wheat block which is suitable for mechanized operations and after the harvest of preceding crops, a deep ploughing or a subsoiling in combination with a rotary tillage and a one-off fertilization for land preparation, without involving any top dressing in a later stage; and (2) carrying out a seeding operation by a wheat seeder, wherein for nitrogen fertilizer, according to the nitrogen release period of a controlled-release nitrogen fertilizer, one of the following application modes is determined: applying a polyurethane-coated controlled-release nitrogen fertilizer alone or a water-based resin-coated controlled-release nitrogen fertilizer special for winter wheat alone; or applying a water-based resin-coated controlled-release nitrogen fertilizer special for winter wheat in combination with 20% to 30% of a polyurethane-coated controlled-release nitrogen fertilizer.

PROCESS FOR PRODUCING PHOSPHATE FERTILIZER WITH MICRONIZED SULFUR
20240317649 · 2024-09-26 ·

Embodiments herein generally relate to a process for producing a solid phosphate fertilizer comprising micronized elemental sulfur. The process of producing a solid fertilizer comprises the steps of: (a) combining micronized sulfur with one or both of phosphate rock and phosphoric acid; (b) reacting the phosphate rock and phosphoric acid to produce TSP mixed with micronized sulfur particles; and (c) granulating the TSP and micronized sulfur into fertilizer granules.

PROCESS FOR PRODUCING PHOSPHATE FERTILIZER WITH MICRONIZED SULFUR
20240317649 · 2024-09-26 ·

Embodiments herein generally relate to a process for producing a solid phosphate fertilizer comprising micronized elemental sulfur. The process of producing a solid fertilizer comprises the steps of: (a) combining micronized sulfur with one or both of phosphate rock and phosphoric acid; (b) reacting the phosphate rock and phosphoric acid to produce TSP mixed with micronized sulfur particles; and (c) granulating the TSP and micronized sulfur into fertilizer granules.

COHERENT DISPERSIBLE GRANULES AND METHODS FOR FORMING COHERENT DISPERSIBLE GRANULES
20240360050 · 2024-10-31 ·

Coherent dispersible granules are disclosed including at least one metal oxide domain and at least one phosphate domain, wherein the at least one metal oxide domain and the at least one phosphate domain are present in the coherent dispersible granules as distinct domains coherently agglomerated together and the coherent dispersible granules have a coherent dispersible granule crush strength of at least 5 lbf. Methods for forming the coherent dispersible granules are disclosed, including co-agglomerating at least one of ammonium phosphate, superphosphate slurry, or nitrophosphate slurry and the metal oxide particles in a rotary drum ammoniator-granulator or granulator to form coherent dispersible granules, and drying the coherent dispersible granules.

COHERENT DISPERSIBLE GRANULES AND METHODS FOR FORMING COHERENT DISPERSIBLE GRANULES
20240360050 · 2024-10-31 ·

Coherent dispersible granules are disclosed including at least one metal oxide domain and at least one phosphate domain, wherein the at least one metal oxide domain and the at least one phosphate domain are present in the coherent dispersible granules as distinct domains coherently agglomerated together and the coherent dispersible granules have a coherent dispersible granule crush strength of at least 5 lbf. Methods for forming the coherent dispersible granules are disclosed, including co-agglomerating at least one of ammonium phosphate, superphosphate slurry, or nitrophosphate slurry and the metal oxide particles in a rotary drum ammoniator-granulator or granulator to form coherent dispersible granules, and drying the coherent dispersible granules.

Handheld device for merging groups of lighting fixtures

A handheld device for merging groups of lighting fixtures is disclosed. The handheld device includes a communication interface configured to wirelessly communicate with a plurality of lighting fixtures and control circuitry. In one embodiment, the control circuitry is configured to effect selection of a first lighting fixture or a first switch module that is grouped with a first group of lighting fixtures via the communication interface; identify the first group of lighting fixtures; effect selection of a device-to-be-added that is not initially associated with the first group of lighting fixtures via the communication interface; determine a new group by adding the device-to-be-added to the first group of lighting fixtures; create group assignment information for the new group; and send the group assignment information to each of the first group of lighting fixtures and the device-to-be-added of the new group via the communication interface.

Coherent dispersible granules and methods for forming coherent dispersible granules

Coherent dispersible granules are disclosed including at least one metal oxide domain and at least one phosphate domain, wherein the at least one metal oxide domain and the at least one phosphate domain are present in the coherent dispersible granules as distinct domains coherently agglomerated together and the coherent dispersible granules have a coherent dispersible granule crush strength of at least 5 lbf. Methods for forming the coherent dispersible granules are disclosed, including co-agglomerating at least one of ammonium phosphate, superphosphate slurry, or nitrophosphate slurry and the metal oxide particles in a rotary drum ammoniator-granulator or granulator to form coherent dispersible granules, and drying the coherent dispersible granules.