B01J39/14

Molecularly imprinted polymer beads for extraction of lithium, mercury, and scandium

The present disclosure provides Molecularly Imprinted Polymer (MIP) technology for selectively sequestering one or more target molecules from chemical mixtures. Also disclosed herein are MIP beads and methods of making and using thereof.

JMZ-12, A DISORDERED AEI/CHA FAMILY OF ZEOLITES, ITS SYNTHESIS AND USE

The present invention is directed to a method of preparing a synthetic crystalline material, designated as JMZ-12, with a framework built up by the disorder AEI and CHA structures, substantially free of framework phosphorous and prepared preferably in the absence of halides such as fluoride ions. Such method comprises the step of heating a reaction mixture under crystallization conditions for a sufficient period to form a disordered zeolite having both CHA and AEI topologies, wherein the reaction mixture comprises at least one source of aluminum, at least one source of silicon, a source of alkaline or alkaline-earth cations, and a structure directing agent containing at least one source of quaternary ammonium cations and at least one source of alkyl-substituted piperidinium cations in a molar ratio of 0.20 to about 1.4. The resulting zeolites are useful as catalysts, particularly when used in combination with exchanged transition metal(s) and, optionally, rare earth metal(s).

PROCESS FOR REMOVING IONS FROM BODILY FLUIDS USING SMALL MOLECULE METAL CHELATORS AND METALLATE ION EXCHANGE COMPOSITIONS

A process for removing Pb.sup.2+, Hg.sup.2+ and other heavy metal toxins from bodily fluids is disclosed. The process involves treating a patient with a small molecule heavy metal chelator to remove these toxins from bones and soft tissue cells into the blood or other bodily fluid. Then an ion exchange composition is used to ion exchange the heavy metal toxins from bodily fluids either within the body or by treatment outside the body such as by dialysis. The ion exchange compositions may be supported by porous networks of biocompatible polymers such as carbohydrates or proteins.

PROCESS FOR REMOVING LEAD, MERCURY, POTASSIUM, AND AMMONIUM IONS FROM BODILY FLUIDS USING RARE-EARTH SILICATE ION EXCHANGE COMPOSITIONS

A process for removing Pb.sup.2+, Hg.sup.2+, K.sup.+ and NH.sub.4.sup.+ toxins from bodily fluids is disclosed. The process involves contacting the bodily fluid with an ion exchange composition to remove the metal toxins in the bodily fluid, including blood and gastrointestinal fluid. Alternatively, blood can be contacted with a dialysis solution which is then contacted with the ion exchange composition. The ion exchange compositions are represented by the following empirical formula:


A.sup.r+.sub.pM.sup.s+.sub.1-xM′.sup.t+.sub.xSi.sub.nO.sub.m

A composition comprising the above ion exchange compositions in combination with bodily fluids or dialysis solution is also disclosed. The ion exchange compositions may be supported by porous networks of biocompatible polymers such as carbohydrates or proteins.

PROCESS FOR REMOVING LEAD, MERCURY, POTASSIUM, AND AMMONIUM IONS FROM BODILY FLUIDS USING RARE-EARTH SILICATE ION EXCHANGE COMPOSITIONS

A process for removing Pb.sup.2+, Hg.sup.2+, K.sup.+ and NH.sub.4.sup.+ toxins from bodily fluids is disclosed. The process involves contacting the bodily fluid with an ion exchange composition to remove the metal toxins in the bodily fluid, including blood and gastrointestinal fluid. Alternatively, blood can be contacted with a dialysis solution which is then contacted with the ion exchange composition. The ion exchange compositions are represented by the following empirical formula:


A.sup.r+.sub.pM.sup.s+.sub.1-xM′.sup.t+.sub.xSi.sub.nO.sub.m

A composition comprising the above ion exchange compositions in combination with bodily fluids or dialysis solution is also disclosed. The ion exchange compositions may be supported by porous networks of biocompatible polymers such as carbohydrates or proteins.

PROCESS FOR A CONTINUOUS SYNTHESIS OF ZEOLITIC MATERIALS USING SEED CRYSTALS LOADED WITH ORGANOTEMPLATE

Disclosed herein is a continuous process for preparing zeolitic material with a CHA-type framework structure comprising SiO.sub.2 and X.sub.2O.sub.3 and the zeolitic material so-obtained. The processes comprises (i) preparing a mixture comprising one or more sources of SiO.sub.2, one or more sources of X.sub.2O.sub.3, seed crystals, one or more tetraalkylammonium cation R.sup.5R.sup.6R.sup.7R.sup.8N+-containing compounds as structure directing agent, and a liquid solvent system; (ii) continuously feeding the mixture prepared in (i) into a continuous flow reactor at a liquid hourly space velocity; and (iii) crystallizing the zeolitic material with a CHA-type framework structure from the mixture in the continuous flow reactor.

PROCESS FOR A CONTINUOUS SYNTHESIS OF ZEOLITIC MATERIALS USING SEED CRYSTALS LOADED WITH ORGANOTEMPLATE

Disclosed herein is a continuous process for preparing zeolitic material with a CHA-type framework structure comprising SiO.sub.2 and X.sub.2O.sub.3 and the zeolitic material so-obtained. The processes comprises (i) preparing a mixture comprising one or more sources of SiO.sub.2, one or more sources of X.sub.2O.sub.3, seed crystals, one or more tetraalkylammonium cation R.sup.5R.sup.6R.sup.7R.sup.8N+-containing compounds as structure directing agent, and a liquid solvent system; (ii) continuously feeding the mixture prepared in (i) into a continuous flow reactor at a liquid hourly space velocity; and (iii) crystallizing the zeolitic material with a CHA-type framework structure from the mixture in the continuous flow reactor.

Montmorillonite slurry, clay film and method of producing montmorillonite slurry
11117288 · 2021-09-14 · ·

A montmorillonite slurry, containing a lithium-immobilized montmorillonite having a cation exchange capacity of 50 meq/100 g or less, ammonia, water, and an organic solvent, in which the organic solvent includes at least one kind of organic solvent selected from the group consisting of acetonitrile and methyl ethyl ketone, the proportion occupied by the organic solvent in the total amount of the water and the organic solvent in the slurry is 10% by mass or more and 90% by mass or less, and the content of ammonia in the slurry is 0.1 mmol or more per gram of the lithium-immobilized montmorillonite in the slurry; a method of producing the same; and a clay film.

Montmorillonite slurry, clay film and method of producing montmorillonite slurry
11117288 · 2021-09-14 · ·

A montmorillonite slurry, containing a lithium-immobilized montmorillonite having a cation exchange capacity of 50 meq/100 g or less, ammonia, water, and an organic solvent, in which the organic solvent includes at least one kind of organic solvent selected from the group consisting of acetonitrile and methyl ethyl ketone, the proportion occupied by the organic solvent in the total amount of the water and the organic solvent in the slurry is 10% by mass or more and 90% by mass or less, and the content of ammonia in the slurry is 0.1 mmol or more per gram of the lithium-immobilized montmorillonite in the slurry; a method of producing the same; and a clay film.

Zeolite membrane structure

A zeolite membrane structure includes a porous support, and a zeolite membrane. The zeolite membrane has a first zeolite layer located in a surface of the porous support, and a second zeolite layer located outside of the surface of the porous support and integrally formed with the first zeolite layer. The porous support has an outermost layer in which the first zeolite layer is located. An average thickness of the first zeolite layer is less than or equal to 5.4 micrometers. A porosity of the outermost layer is greater than or equal to 20% and less than or equal to 60%.