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| Number | Title | Issue Date |
| 7993416 | Pre-filled crystallization plates and methods for making and using same The present invention generally relates to encapsulation of crystallization solutions in pierceable reservoirs in order to prevent evaporation of the crystallization solutions, thereby allowing safe transport/shipping, from a workstation to another workstation, and ... | 08/09/2011 |
| 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 ruthenium. The micro-disperse particles can have a substantially uniform diame... | 09/23/2008 |
| 7354768 | Volume-differential assay using hydrophilic gel Systems and methods for measuring the moisture and sediment content of a petroleum sample. In one embodiment, a sample to be tested is collected in a field bottle. The sample from the field bottle is then transferred from the field bottle, and into and through a mea... | 04/08/2008 |
| 7316805 | Laboratory cap and well for hanging-drop crystallization methods The invention relates to a device for molecular and macromolecular crystallization. More particularly, the device comprises a well and a transparent cap for growing diffraction-quality protein crystals by conventional vapor diffusion techniques. The present device i... | 01/08/2008 |
| 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 dissolved. The process is improved in that the suspension is decanted, the cl... | 12/25/2007 |
| 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 capable of inhibiting crystallization; b) coating the pesticide on a subs... | 07/24/2007 |
| 7192890 | Depositing an oxide A dielectric deposited on a substrate may be exposed to a salt solution. While exposed to the salt solution, an oxide is deposited on the dielectric. ... | 03/20/2007 |
| 7186394 | Retarding agents for preparing purified brine The invention relates to a process to produce brine of improved purity wherein a salt source, contaminated with sulphate ions and alkaline (earth) metal ions, is dissolved in water in the presence of an effective amount of a retarding agent comprising at least one l... | 03/06/2007 |
| 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 supercritical or near-critical anti-solvent fluid; a first target substance in a... | 12/19/2006 |
| 6949236 | Aminosulfonate product-treated nitrogen-containing salt particles Addition of an aminosulfonate product to an inorganic nitrogen-containing salt provides a composition of matter with improved properties. In particular, 2-acrylamido-2-methylpropanesulfonic acid and its derivatives can be added to ammonium nitrate to provide improve... | 09/27/2005 |
| 6931888 | Lyophilization method and apparatus for producing particles A method and apparatus for producing particles, the apparatus includes a solution source that supplies a solution, and a fluid source that supplies a fluid. The solution includes a solvent and a solute. A mixer receives the solution and the fluid from the sources, a... | 08/23/2005 |
| 6919040 | Method of producing an abrasive product containing cubic boron nitride A method of producing an abrasive product consists of providing a mixture of a mass of discrete carbide particles and a mass of cubic boron nitride particles, the cubic boron nitride particles being present in the mixture in an amount such that the cubic boron nitri... | 07/19/2005 |
| 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 granulation zone that are being kept in motion, as a result of which thes... | 04/26/2005 |
| 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 a dispersion of either (i) seed crystals of the mineral salt in an aq... | 04/19/2005 |
| 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 growth inhibitor that is selected from oligopeptides, polypeptides, and po... | 03/15/2005 |
| 6860907 | 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 supercritical or near-critical anti-solvent fluid; a “target solution or suspe... | 03/01/2005 |
| 6821306 | Method for producing mixed crystals of disodium 5′-guanylate and disodium 5′-inosinate Herein is disclosed a method for producing mixed crystals of disodium 5′-guanylate and disodium 5′-inosinate which comprises feeding a mixed solution of disodium 5′-guanylate and disodium 5′-inosinate which solution will become supersaturated at the below-me... | 11/23/2004 |
| 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, made miscible in water with a soap or detergent, saponified w... | 12/09/2003 |
| 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 oxide doped with metal ions as a third component, methods for ... | 07/08/2003 |
| 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 and a method of manufacturing said cells.... | 06/10/2003 |
| 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 nitrate, optionally with a proportion of the ammonium nitr... | 06/03/2003 |
| 6570036 | Co-crystallization process A process for isolating one or more enantiomer components from a mixture of enantiomers through co-crystallization is disclosed.... | 05/27/2003 |
| 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 producing the product with desired particle size characteri... | 05/06/2003 |
| 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/m3, said process comprising: providing a suspension of solid sodium carbonate and/or solid sodium bicarbonate and/o... | 02/04/2003 |
| 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 molecular oxygen in the presence of a metal catalyst thereby s... | 12/10/2002 |
| 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 high surface area end product crystals with greatly improved ... | 10/16/2001 |
| 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 liquor and then subsequently adding a mixture of a hydropho... | 09/25/2001 |
| 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 crystal size and improved morphology over crystals obtained by c... | 04/24/2001 |
| 6074441 | Process for producing ultrafine-crystallization products The process for producing crystallisation products with an average particle diameter of | 06/13/2000 |
| 6063138 | Method and apparatus for the formation of particles The invention provides a method for forming particles of a substance, by co-introducing into a particle formation vessel, in which the temperature and pressure are controlled, of a supercritical fluid; a solution or suspension of the substance in a first ... | 05/16/2000 |
| 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 pressure in the substance or mixture of substances provided ... | 05/02/2000 |
| 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 compositions. Alkali metal bicarbonate salts include sodium b... | 03/28/2000 |
| 6036733 | Process for the preparation of crystalline sodium silicates The invention relates to a process for the preparation of crystalline sodium silicates having a sheet structure and high δ phase content from water glass, which has been prepared predominantly hydrothermally, by dehydration of the water glass and subsequ... | 03/14/2000 |
| 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 methanol to the sodium carbonate-containing solution in the preci... | 02/08/2000 |
| 6022409 | Method of resolution of two enantiomers by crystallization A method of optical enantiomer resolution by preferential crystallization involves entering, each time crystallization starts, the two-phase domain containing excess enantiomer and the saturated solution, and cooling according to a well-defined kinetic sc... | 02/08/2000 |
| 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 compositions including such salts, are described. The method i... | 02/02/1999 |
| 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 crown ether or other cyclic or acyclic polydentate chelat... | 12/29/1998 |
| 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 are substantially soluble and reactive with each other in w... | 12/29/1998 |
| 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 containing a fluorocomplex compound and/or a fluoride of a rare ea... | 11/03/1998 |
| 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 organic poisons from the sodium oxalate. The adsorbents are... | 03/17/1998 |
