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7507388 Process for production of dense soda, light soda, sodium bicarbonate and sodium silicate from solutions containing bicarbonate  
A process related to sodium chemicals production, including the processing of bicarbonate containing solutions obtained by solution mining of trona, nahcolite or wegscheiderite reserves and the...
7427302 Method of manufacturing micro-disperse particles of sodium borohydride  
A compact solid source of hydrogen gas, where the gas is generated by contacting water with micro-disperse particles of sodium borohydride in the presence of a catalyst, such as cobalt or...
7311837 Process for the continuous recovery of free tartaric acid from raw materials containing potassium hydrogentartrate  
In a process for the continuous recovery of free tartaric acid from raw materials containing potassium hydrogentartrate, the same are mixed with water and the potassium hydrogentartrate is...
7247175 Method of purifying a pesticide  
The present invention describes a method of purifying a pesticide that includes: a) melting a pesticide, wherein the pesticide includes at least one active ingredient and at least one impurity...
7150766 Method of particle formation  
The invention provides a method for forming particles of a target substance, comprising (a) co-introducing into a particle formation vessel, under controlled temperature and pressure, a...
6884268 Process for the preparation of granules  
Process for the preparation of granules from a liquid composition by spraying the liquid composition in the granulation zone of a granulating device onto or over solid particles present in the...
6881231 Reduction in mineral salt deposition  
A composition for reducing deposition of a mineral salt from an aqueous supersaturated solution onto a solid surface in contact with the aqueous supersaturated solution which composition comprises...
6866688 Process to make high-purity wet salt  
The invention relates to an evaporative crystallization process to make salt compositions that includes a step wherein a mother liquor is formed that contains an effective amount of a crystal...
6660049 Process for control of crystallization of inorganics from aqueous solutions  
Process of crystallization of sodium bicarbonate from solution mined Nahcolite pregnant liquor comprising the use of from about 2 to 100 parts per million of lecithin, introduced full strength,...
6589906 Methods for producing oxides or composites thereof  
Disclosed are methods for producing films of a composite comprising a metal oxide in combination with one or more other oxides or metals as a third component, or a composite comprising a metal...
6576831 Multicrystalline silicon having a low proportion of active grain borders  
Directionally solidified, multicrystalline silicon having a low proportion of electrically active grain borders, its manufacturing and utilisation, as well as solar cells comprising said silicon...
6572833 Ammonium nitrate bodies and a process for their production  
A process for the production of ammonium nitrate bodies in particulate form wherein an ammonium nitrate/water liquid mixture containing at least 92% and preferably at most 97.5% by weight ammonium...
6570036 Co-crystallization process  
A process for isolating one or more enantiomer components from a mixture of enantiomers through co-crystallization is disclosed.
6558435 Reactive crystallization method to improve particle size  
This invention provides a method of conducting a simultaneous chemical reaction and controlled crystallization of the product employing impinging fluid jet streams containing reactants capable of...
6514475 Process for the production of sodium carbonate anhydrate  
The invention is directed to a process for the production of sodium carbonate-anhydrate having a bulk density of at least 800 kg/m 3 , said process comprising: providing a suspension of solid...
6491795 Process for recovering benzyl benzoate  
High-purity benzyl benzoate is recovered by distilling the residue remaining after removal of unreacted toluene and benzoic acid from a reaction mixture produced by the oxidation of toluene by...
6302958 Sonic impinging jet crystallization apparatus and process  
A novel apparatus and process for crystallizing submicron-sized crystals of a pharmaceutical composition. The submicron-sized crystals, which have an average size of less than 1 micron, provide...
6293973 Method of controlling oxalate precipitation in bayer process liquor  
A method is disclosed for controlling the precipitation of soluble sodium oxalate in Bayer process liquor which comprises adding a surface active quaternary ammonium compound to the Bayer process...
6221153 Method for producing large crystals of complex molecules  
Compressed gases, liquefied gases, or supercritical fluids are utilized as anti-solvents in a crystal growing process for complex molecules. Crystals of the present invention exhibit greater...
6074441 Process for producing ultrafine-crystallization products  
The process for producing crystallisation products with an average particle diameter of <1 μm is based on the atomisation of a solution and the simultaneous evaporation of the solvent. The...
6056791 Process for the production of particles or powders  
In a novel process for the production of particles or powders, a substance or mixture of substances to be treated is provided in a pressure vessel. A highly compressible fluid is dissolved under...
6042622 Process for crystallization of alkali metal bicarbonate salts  
Alkali metal bicarbonate salts, e.g., sodium bicarbonate, are crystallized from aqueous solutions thereof in the presence of a crystal growth promoting amount of lecithin or lecithin containing...
6022409 Method of resolution of two enantiomers by crystallization  
6022385 Process for the manufacture of sodium carbonate crystals from minerals or solutions  
A method of producing sodium carbonate crystals from a sodium carbonate-containing solution including the steps of passing the sodium carbonate-containing solution to a precipitator, adding...
5864923 Method of forming particles using a supercritical fluid  
A method for providing aerogels, and aerogels produced according to the method, is described. As one aspect, antiperspirant compounds that are in aerogel form, and antiperspirant and deodorant...
5853691 Silver halides of altered crystal habit or morphology and methods for producing same  
Methods are disclosed in which first and second reactant salts and a complexing agent are added to a non-aqueous reaction solvent in which the complexing agent is soluble. The complexing agent is a...
5853686 Calcium carbonates of altered crystal habit or morphology and methods for producing same  
Methods are disclosed in which first and second reactant salts and, optionally, a complexing agent are added to a non-aqueous reaction solvent to form a reaction system. The reactant salts, which...
5830242 Process for producing metal oxide precipitates  
This invention relates to a process for producing metal oxide precipitates, which comprises making a fluoride ion-capturing agent exist in an aqueous solution or hydrofluoric acid solution...
5728180 Adsorbent combinations for enhanced removal of sodium oxalate from bayer process spent liquor  
Sodium oxalate is precipitated from spent Bayer process liquor by mixture with a low total alkalinity (TA) sodium oxalate seed solution that has been treated with two or more adsorbents to remove...
5716419 Process for crystallization of mineral salts  
Mineral salts, e.g., potassium chloride, are crystallized from aqueous solutions thereof in the presence of a crystal growth promoting amount of lecithin or lecithin containing compositions....
5545394 Complexation-mediated crystal-forming reactions using complexing agents  
Methods and reaction systems are disclosed that are adapted for forming crystallites having novel crystal habits and/or morphologies compared to conventional crystallites of the same chemical...
5447543 Process for crystallizing inorganic salts  
The present invention is an improved method for crystallizing inorganic salts. The inorganic salts that are suitable for this process are characterized by the fact that they form isothermic or...
5435919 Optically-active, amhiphilic, water-soluble free-radical addition copolymers and their use in the resolution of racemic mixtures  
Optically-active, amphiphilic, free-radical addition copolymers having an optically-active hydrophobic portion and an ionic hydrophilic portion are effective resolving agents. This utility is based...
5409505 Method and apparatus for crystallization of organic matter  
Adiabatic self-evaporation cooling of a refrigerant is performed in a crystallizer for a treated organic matter which contains the refrigerant and is fed into the crystallizer. Crystals produced by...
5385586 Liquor oxalate stabilizers  
A method for inhibiting the precipitation of sodium oxalate crystals in a Bayer process liquor. The method comprises the step of adding to the Bayer process liquor, after red mud separation and...
5382265 Perchlorate removal process  
A process for removing perchlorate ion from waste water using KCl is disclosed. In the process, waste perchlorate is concentrated by water evaporation in a stripping tower. Ammonia and volatile...
5354496 Lyotropic liquid crystal salt/inorganic compound complexation products  
The invention provides novel chemical complexation products for use as superconductors, polymer electrolytes for alkali metal batteries, electrolytes for electrochromic windows, static dissipative...
5330618 Process for separating dissolved solids from a liquid using an anti-solvent and multiple effect evaporators  
A process and system for treating aluminum salt cake containing water soluble halide salts by contacting the salt cake with water to dissolve water soluble halide salts forming a saturated brine...
5316554 Method for processing crystalline ammonium carbamate  
Ammonium carbamate, in solution with urea, water and ammonia and under high temperature and pressure is cooled to below its crystallization temperature while being subjected to an elevated...
5312603 Using polyglycerines in the Bayer process to increase crystal size of the product  
The invention concerns the production of aluminum trihydrate crystal by the Bayer process, by digesting ground bauxite, filtering off the red mud, cooling the filtrate, and crystallizing out the...
5262357 Low temperature thin films formed from nanocrystal precursors  
Nanocrystals of semiconductor compounds are produced. When they are applied as a contiguous layer onto a substrate and heated they fuse into a continuous layer at temperatures as much as 250, 500,...
5227007 Process for producing crystals of salt of acidic amino acid and basic amino acid  
Disclosed is a process for producing crystals of a salt of an acidic amino acid and a basic amino acid, which comprises adding a water-miscible solvent to an aqueous solution of the salt to prepare...
5202105 Method for making hexagonal silicon carbide platelets with the addition of a growth additive  
Crystalline silicon carbide wherein at least 90 weight percent of the silicon carbide is formed from a plurality of hexagonal crystal lattices wherein at least 80 weight percent of the crystals...
5173087 Crystal growth in a microgravity environment  
Gravitational phenomena, including convection, sedimentation, and interactions of materials with their containers all affect the crystal growth process. If they are not taken into consideration...
5106599 Alumina crystal growth additive  
A method of modifying crystal structure of alumina trihydrate crystallizing from saturated Bayer liquors, which method includes the treatment of the saturated Bayer liquors with a crystal modifying...
5085670 Production of potassium chloride crystals  
Potassium chloride crystals of larger and/or more regular size are produced by conducting the crystallization in the presence of a small amount of a branched C 12 monoalkylated diphenyl ether...
5082582 Nucleating device for thermal energy storage compositions  
A nucleating agent for NaOH/H 2 O solutions comprises a metal bar, magnetic tape adhered to a surface area of the bar and particulate magnetite on the surface of the tape. The magnetic field...
4956157 Process for separating salts in seawater  
A process for obtaining available elements from seawater is described, which process includes two separation steps. The first separation step involved adjusting the pH of seawater to a low pH by...
4911781 VLS Fiber growth process  
A method for preparing substrates for VLS fiber producing reactions and a method for preparing SiC fibers by the VLS process. The first method includes the steps of forming an alcohol sol...
4908043 Method of producing crystals of anhydrous sodium sulfide  
Disclosed are single crystals of anhydrous sodium sulfide, and a method of producing single crystals of anhydrous sodium sulfide, characterized in that the method comprises concentrating an aqueous...
Matches 1 - 50 out of 298 1 2 3 4 5 6 >