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| Number | Title | Issue Date |
| 6869582 | Process for the synthesis of BrSF5 A process for producing BrSF5 includes providing a first reactant including a metal fluoride of fluorine and a metal M selected from the group consisting of alkali metals, alkaline earth metals, and Ag, providing a second reactant including BrF3 | 03/22/2005 |
| 6764670 | Removal of thiothionylfluoride from sulfur tetrafluoride A process for removing thiothionylfluoride from a composition containing sulfur tetrafluoride and thiothionylfluoride includes contacting the composition with a high surface area material, such as activated carbon. The process can provide purified sulfur tetrafluori... | 07/20/2004 |
| 6673329 | Process for preparing fluorosulfonic acid having low contents of low-boiling compounds The invention relates to a novel process for preparing fluorosulfonic acid having low contents of low-boiling compounds in which hydrogen fluoride and sulfur trioxide are combined in stoichiometric amounts in a reaction vessel or by means of a reaction no... | 01/06/2004 |
| 6471934 | Disproportionation of sulfuryl chloride fluoride A method of preparing sulfuryl fluoride by disproportionation of sulfuryl chloride fluoride in the gas phase on activated carbon.... | 10/29/2002 |
| 6241958 | Process for preparing sulfate-containing basic solutions of polyaluminumchloride The process of preparing a solution of basic sulfate-containing polyaluminum chloride includes digesting an aluminum-containing substance with hydrochloric acid to form a resulting solution and an insoluble residue; filtering the resulting solution to sep... | 06/05/2001 |
| 6143269 | Purification of sulfuryl fluoride Sulfuryl fluoride (SO2 F2) frequently contains chlorine, sulfur dioxide and other acidic impurities owing to its production. Effective purification is possible if the sulfuryl fluoride is contacted with hydrogen peroxide or a precurs... | 11/07/2000 |
| 6036935 | Polyaluminum chlorides and polyaluminum chlorosulfates methods and compositions The present invention is directed to a process for the production of polyaluminum chlorides and polyaluminum chlorosulfates useful as coagulants in water treatment. In addition, the invention is directed to the products made by the disclosed processes.... | 03/14/2000 |
| 6019955 | Active nickel hydroxide material having controlled water content An nickel hydroxide positive electrode active material which can be made by an ultrasonic precipitation method. The nickel hydroxide active material is characterized by the composition: ##EQU1## where x, the number of water ligands surrounding each N... | 02/01/2000 |
| 5997838 | Polyaluminum chlorides and polyaluminum chlorosulfates methods and compositions The present invention is directed to a process for the production of polyaluminum chlorides and polyaluminum chlorosulfates useful as coagulants in water treatment. In addition, the invention is directed to the products made by the disclosed processes.... | 12/07/1999 |
| 5985234 | Polyaluminum chlorides and polyaluminum chlorosulfates methods and compositions The present invention is directed to a process for the production of polyaluminum chlorides and polyaluminum chlorosulfates useful as coagulants in water treatment. In addition, the invention is directed to the products made by the disclosed processes.... | 11/16/1999 |
| 5879652 | Process for producing oxochlorides of sulfur A process for producing sulfuryl chloride and/or thionyl chloride is disclosed which involves contacting a mixture comprising SO2 and Cl2 (e.g., at about 300° C. or less) with carbon having an active metal content of less than 1000 ... | 03/09/1999 |
| 5879651 | Process for the preparation of basic polyaluminum chlorosulphates and applications thereof The present invention relates to a process for the preparation of basic polyaluminium chlorosulphates. This process consists, after basification, in carrying out cooking at a temperature between 60° C. and 95° C. such that the cooking time is proportion... | 03/09/1999 |
| 5759508 | Process for producing oxochlorides of sulfur A process for producing sulfuryl chloride and/or thionyl chloride is disclosed which involves contacting a mixture comprising SO2 and Cl2 (e.g., at about 300° C. or less) with a silicon carbide catalyst having a surface area of at l... | 06/02/1998 |
| 5603912 | Basic aluminum hydroxychlorosulfate process and product therefrom An improved method for preparing a basic aluminum hyrdoxy-chlorosulfate is disclosed comprising reacting a basic aluminum chloride with a sulfate source, i.e. H2 SO4 or aluminum sulfate, and modifying the reaction product by the addi... | 02/18/1997 |
| 5518706 | Basic aluminum chlorosulfate flocculant A novel basic aluminum chlorosulfate, well adopted for the improved purification of aqueous media, has the formula: Aln (OH)m (SO4)k Cl3n-m-2k and characteristic basicity, Al/Cl ratio, molecular weight and hydr... | 05/21/1996 |
| 5441720 | Pentafluorosulfanylnitramide salts A pentafluorosulfanylnitramide salt that is ammonium pentafluorosulfanylnamide, sodium pentafluorosulfanylnitramide, potassium pentafluorosulfanylnitramide, lithium pentafluorosulfanylnitramide, or cesium pentafluorosulfanylnitramide. These salts are use... | 08/15/1995 |
| 5348721 | Polyaluminumchlorosulfates and preparation and uses thereof The invention relates to high basicity polyaluminumchlorosulfates and their preparation process, said polyaluminumchlorosulfates being useful in the treatment of drinking water, aqueous effluents, and in the papermaking industry and having the formula: Al... | 09/20/1994 |
| 5246686 | Basic aluminum chlorosulfate flocculating agents Novel basic aluminum chlorosulfate solutions, having a basicity ranging from 45% to 70% and wherein more than 80% of the SO42- values are complexed, prepared, e.g., by reacting calcium carbonate with a chlorosulfuric solution of alum... | 09/21/1993 |
| 5124139 | Method for preparing basic aluminum chlorosulfate A process for preparing basic aluminum chlorosulfate comprising: 1) forming a reaction mixture in an aqueous medium of aluminum chloride and aluminum sulfate in a molar ratio of aluminum chloride: aluminum sulfate ranging from about 0.75:1 to about 1:3 to 1 fo... | 06/23/1992 |
| 5008095 | Clear and colorless basic aluminum chlorosulfates Clear and colorless solutions of basic aluminum chlorosulfates are prepared by reacting a slurry of calcium chloride and calcium carbonate with aluminum sulfate, separating calcium sulfate solids and a solution of basic aluminum chlorosulfate from the med... | 04/16/1991 |
| 4981673 | Basic aluminum chlorosulfate flocculant A novel basic aluminum chlorosulfate, well adopted for the improved purification of aqueous media, has the formula: Aln OHm (SO4)k Cl3n-m-2k and characteristic basicity, Al/Cl ratio, molecular weight and hydrod... | 01/01/1991 |
| 4929381 | Inorganic anion exchangers and preparation thereof A novel anion exchange material comprising substantially crystalline inorganic mixed metal hydroxides and mixed metal hydrated oxides exhibiting anion exchange properties at temperatures up to about 150° C. and a method of preparing the same is disclosed... | 05/29/1990 |
| 4891196 | Chlorosulfonic acid composition The present invention relates to an improved chlorosulfonic acid (CSA) composition useful in making a high clarity sulfated salt of a C8-22 natural or synthetic predominantly straight chain aliphatic primary alcohol to a process for making the ... | 01/02/1990 |
| 4882140 | Solid aluminum hydroxide compositions Solid aluminum hydroxide compositions having improved solubility, stability and filterability are formed by adding at least a stoichiometric amount of a solid base to a concentrated solution of an aluminum salt (about 8.3% Al2 O3 or ... | 11/21/1989 |
| 4859446 | Process for preparing basic aluminum compounds having increased sweat resistant activity An improved process for preparing an enhanced antiperspirant active polymeric aluminum compound having the empirical formula: wherein X is Cl, Br, F, I, SO4 and NO2, a is about 1.0 to about 4, which is further characterized by (a) a Size ... | 08/22/1989 |
| 4840676 | Insoluble pigments and preparation thereof A water-insoluble pigment comprising a complex of an anion exchange material with a layered crystal structure and a water-soluble dye is disclosed. The anion exchange material may be represented by the general formula where M is a metal element or element... | 06/20/1989 |
| 4826606 | Manufacture and use of polymer modified aluminum hydroxide and basic aluminum sulfate Utilization of a cationic polymer as a settling aid in the recovery of the aluminum hydroxide and an anionic polymer to dewater the aluminum hydroxide prior to redissolution not only improves the process of making basic aluminum compounds by speeding sett... | 05/02/1989 |
| 4773936 | Insoluble pigments and preparation thereof A water-insoluble pigment comprising a complex of a water-insoluble inorganic substrate exhibiting anion exchange properties, a water-soluble dye, and an anionic amphipathic material is disclosed.... | 09/27/1988 |
| 4769079 | Insoluble pigments and preparation thereof A water-insoluble pigment comprising a complex of an inorganic water-insoluble anion exchange material and a water-soluble dye is disclosed. The anion exchange material may be represented by the general formula: wherein M is a metal element or elements ea... | 09/06/1988 |
| 4769080 | Insoluble pigments and preparation thereof A water-insoluble pigment comprising a complex of an anion exchange material with a layered crystal structure and a water-soluble dye is disclosed. The anion exchange material may be represented by the general formula: where M is a metal element or elemen... | 09/06/1988 |
| 4654201 | Process for producing a flocculating agent A process of producing a flocculating agent useful for water purification technology and as a substitute for aluminium sulphate in the rosin sizing of paper is described. In this process, about 100-150 parts by weight, preferably about 130 parts by weight... | 03/31/1987 |
| 4654202 | Separation of hydrogen sulfide from gases by the use of cuprous aluminum tetrachloride as a reversible complexing reagent H2 S:CuAlCl4 and 2 H2 S:CuAlCl4 are complex addition compounds which may be prepared by contacting CuAlCl4 with gaseous H2 S at partial pressures of 0.1 to 1.0 atma and temperatures of 20°... | 03/31/1987 |
| 4597803 | Process for cleaning vessels containing sulfur dichloride A process for cleaning vessels containing liquid sulfur dichloride is disclosed. The sulfur dichloride is first removed from the vessel leaving a heel (residue) of liquid and solid material on the bottom of the vessel. The remaining liquid is vaporized by... | 07/01/1986 |
| 4590054 | Process for preparing poly(tetramethylene ether) glycol The color level of poly(tetramethylene ether) glycol made by polymerizing tetrahydrofuran using fluosulfonic acid as the catalyst is significantly lower if the fluosulfonic acid contains no more than about 1200 ppm of iron sulfites.... | 05/20/1986 |
| 4545822 | Process for cleaning vessels containing sulfur dichloride Substantially all the liquid sulfur dichloride in a vessel is removed from the vessel leaving a heel (residue) of liquid and solid material on the bottom of the vessel. The remaining liquid is vaporized by heating the vessel, and the vapors are removed by... | 10/08/1985 |
| 4479926 | Treatment of residual bottoms from fluorosulfuric acid regeneration A method for treating a waste stream from an alkylation process is disclosed, where the waste stream comprises a fluoride, sulfuric acid, and an acid soluble oil. The method comprises combusting the waste stream, scrubbing the combustion products to remov... | 10/30/1984 |
| 4399203 | Sulfide and selenide compositions Novel sulfide, polysulfide, selenide and polyselenide compositions are provided which are useful as ionic conducting solid electrolytes. Electrical energy storage devices utilizing such electrolytes are also provided.... | 08/16/1983 |
| 4390511 | Process for producing SF6 through SF5 Cl SF6 is produced by a pyrolysis of SF5 Cl obtained by a reaction of sulfur or sulfur chloride with chlorine and an amine/hydrogen fluoride complex or a reaction of sulfur tetrafluoride with chlorine and an amine/hydrogen fluoride comp... | 06/28/1983 |
| 4292289 | Process for producing hydrogen fluoride and phosphoric acid An improved method for producing hydrogen fluoride from fluoride bearing ores, such as fluorospar and fluorapatite, by reaction of the ore as a slurry in fluorosulfonic acid. The slurry is heated by the exothermic heat of the reaction to vaporize volatile... | 09/29/1981 |
| 4268491 | Producing sulphur-nitrogen groups Compounds containing sulphur-nitrogen groups, such as S4 N4, S5 N5+ salts and poly(sulphur nitride), are made by reducing S4 N3 Cl or related compounds with anions (e.g. iodide) ... | 05/19/1981 |
