CAS: 10294-54-9; Cesium Sulfate

专利信息

专利号:US-3819817-A
优先权日:1972-03-10
标 题:Hydrogen sulfide synthesis
发明人：VAN SLYKE W
权利人:SLYKE W VAN
摘要:A PROCESS FOR THE SYNTHESIS OF HYDROGEN SULFIDE FREE OF CARBON DIOXIDE COMPRISING THE STEPS OF REACTING A SULFUR BEARING MATERIAL SUCH AS SODIUM SULFATE OR SODIUM SULFITE WITH OXYGEN, CARBON AND STREAM UNDER REDUCING CONDITIONS IN THE PRESENCE OF HYDROGEN SULFIDE TO PRODUCE SODIUM SULFIDE. THIS SODIUM SULFIDE IS THEN REACTED WITH ACID TO LIBERATE HYDROGEN SULFIDE.

专利号:US-2023114534-A1
优先权日:2021-10-11
标题:High Temperature Chemical Process For The Preparation Of Cesium Tungstate
发明人：CARDARELLI FRANCOIS
权利人:CARDARELLI FRANCOIS
摘要:The present disclosure broadly relates to a high temperature chemical process for the synthesis of cesium tungstate in the solid state and the preparation of aqueous solutions or deuterated solutions of cesium tungstate. More specifically, but not exclusively, the present disclosure relates to a high temperature chemical process in which tungsten oxide compounds such as tungsten oxides, or natural or synthetic concentrates such as wolframite or scheelite, tungsten industrial by-products or there mixture thereof, are mixed with cesium compounds such as cesium carbonate, or cesium sulfate, or cesium hydroxide or their mixtures thereof and the mixture is roasted in air or oxygen at high temperature inside a kiln. After cooling, the solid sintered mass containing cesium tungstate is leached or dissolved with water or heavy water for producing dense aqueous solutions or deuterated solutions of cesium tungstate.

专利号:US-2005250731-A1
优先权日:2004-05-07
标题:Synthesis of purified, moderately esterified polyol polyester fatty acid compositions
发明人：SCHAEFER JARED J
权利人:PROCTER & GAMBLE
摘要:Processes for the preparation of a purified moderately esterified polyol fatty acid polyester composition including the steps of: forming an initial reaction mixture containing a polyol portion, a highly esterified polyol fatty acid polyester, a moderately esterified polyol fatty acid polyester; and a catalyst; wherein the molar ratio of the polyol portion, highly esterified polyol polyester portion, and moderately esterified polyol polyester portion should be chosen such that the final ratio of total fatty acid esters to total polyol backbones is in the range from about 3.2:1 to about 6.4:1; wherein the molar ratio of said catalyst to said highly esterified polyol polyester is in the range of from about 0.01:1 to about 10:1; and then forming an initial reaction product by reacting the initial reaction mixture in an inert atmosphere, in the presence of a sufficient amount of agitation, for a period of time in the range of from about 30 minutes to about 6 hours, and at a temperature in the range of from about 80° C. to about 140° C.

专利号:US-9861965-B2
优先权日:2011-09-16
标 题 :Process for preparing modified V—Ti—P catalysts for synthesis of 2,3-unsaturated carboxylic acids
发明人：NORMAN DAVID WILLIAM; KING GREG ALAN
权利人:EASTMAN CHEM CO
摘要:The invention relates to a catalyst composition comprising a mixed oxide of vanadium, titanium, and phosphorus modified with alkali metal. The titanium component is derived from a water-soluble, redox-active organo-titanium compound. The catalyst composition is highly effective at facilitating the vapor-phase condensation of formaldehyde with acetic acid to generate acrylic acid, particularly using an industrially relevant aqueous liquid feed.

专利号:US-2005250941-A1
优先权日:2004-05-07
标题:Synthesis of purified, moderately esterified polyol polyester fatty acid compositions
发明人：SCHAEFER JARED J
权利人:PROCTER & GAMBLE
摘要:Processes for the preparation of a purified moderately esterified polyol fatty acid polyester composition including the steps of: (a) forming an initial reaction mixture, said initial reaction mixture containing: a polyol portion; a highly esterified polyol fatty acid polyester; a solvent; and, a catalyst, wherein the molar ratio of said polyol portion to said highly esterified polyol polyester is chosen such that the final ratio of total fatty acid esters to total polyol backbones is in the range from about 3.2:1 to about 6.4:1; wherein the molar ratio of said catalyst to said highly esterified polyol polyester is in the range of from about 0.01:1 to about 10:1, and wherein the weight ratio of said solvent to the combined weight of said polyol portion, said highly esterified polyol polyester, and said catalyst is in the range of from about 0.01:1 to about 2:1; and (b) forming an initial reaction product by reacting said initial reaction mixture in an inert atmosphere, in the presence of a sufficient amount of agitation, for a period of time in the range of from about 30 minutes to about 6 hours, and at a temperature in the range of from about 80° C. to about 140° C.

专利号:US-7897699-B2
优先权日:2002-05-28
标 题 :Synthesis of purified, partially esterified polyol polyester fatty acid compositions
发明人：SCHAEFER JARED JOHN; TROUT JAMES EARL
权利人:PROCTER & GAMBLE
摘要:This invention relates to processes for the production of purified, partially esterified polyol fatty acid polyesters and the compositions derived from those processes. The purified, partially esterified polyol fatty acid polyesters of the present invention are particularly well suited for use in a variety of food, beverage, pharmaceutical, and cosmetic applications and comprise less than about 5% polyol; less than about 5 ppm of residual solvent; less than about 700 ppm of lower alky esters; less than about 5% of a soap and free fatty acid mixture; less than about 3% of ash; and have an acid value of less than about 6.