CAS: 1308-14-1; Chromium(ⅲ)Hydroxiden

专利信息

专利号:US-2023286918-A1
优先权日:2020-07-02
标 题:Manufacturing process for 3,5-dichloropicolinonitrile for synthesis of vadadustat
发明人：JURKAUSKAS VALDAS; JUNG YOUNG CHUN; KWON TAESOO; KANNAN ARUNACHALAM; GONDI VIJAYA BHASKER
权利人:AKEBIA THERAPEUTICS INC
摘要:Disclosed herein are methods and processes of preparing vadadustat or a pharmaceutically acceptable salts thereof, and intermediates (e.g., a compound of Formula (I), (I-F), (II), or (IV), or a pharmaceutically acceptable salts thereof) useful for the synthesis of vadadustat.

专利号:US-7405313-B2
优先权日:2006-09-13
标题:Method for the synthesis of basic chromium carboxylates
发明人：VINCENT JOHN B
权利人:UNIV ALABAMA
摘要:A method for the synthesis of a chromium complex 2, [Cr 3 O(carboxylate) 6 (H 2 O) 3 ] + (2), wherein carboxylate is a substituted or unsubstituted C2-C5 alkyl carboxylate, is provided, including the step of: n heating an aqueous reaction mixture of a Cr(III) salt, a substituted or unsubstituted C2-C5 alkyl carboxylic acid and a metal hydroxide for a time period and at a temperature sufficient to generate an aqueous product mixture comprising chromium complex 2 and non-toxic byproducts.

专利号:US-4666945-A
优先权日:1983-11-14
标 题:Catalyst composition suitable for synthesis of methanol
发明人：OSUGI MINORU; TAKAGAWA MAKOTO; NAKAMURA TADASI; KOJIMA TAKASHI; TSUJI KINYA
权利人:MITSUBISHI GAS CHEMICAL CO
摘要:A catalyst composition comprising copper oxide, zinc oxide and zirconium oxide, the content of zirconium oxide being 30 to 70% by weight. This catalyst composition is useful for synthesis of methanol from carbon monoxide and/or carbon dioxide and hydrogen by a gas-liquid-solid phase fluidized bed method or a gas-solid phase fluidized bed method.

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-2007287877-A1
优先权日:2006-06-12
标题 :Method for synthesis of reversion resistant chromium bearing wastes and materials
发明人：FORRESTER KEITH EDWARD
权利人:FORRESTER KEITH EDWARD
摘要:This invention provides a method for stabilization of hexavalent chromium and trivalent chromium bearing wastes, materials, and contaminated soils subject to acid and water leaching tests or leach conditions by addition of water solution, hexavalent chromium reducing agent, precipitating and pH increase agent, and chromium reversion control and stabilizing agents such that leaching of chromium is inhibited to desired levels and resists reversion to hexavalent chromium form over time. The resultant material, contaminated soil and/or waste after stabilization and reversion control is deemed suitable for on-site reuse, off-site reuse or disposal as RCRA non-hazardous waste.

专利号:US-12312698-B2
优先权日:2022-12-23
标 题:Method and device for preparing trivalent chromium salt by electrochemical oxidation of ferrochrome in acidic system
发明人：LI BO; FENG HAITAO; DONG YAPING; LI XINQIAN; LI SHUQI; NIU ZHENGRONG; LI WU
权利人:QINGHAI INST SALT LAKES CAS
摘要:A method and a device for preparing a trivalent chromium salt by electrochemical oxidation of ferrochrome in an acidic system are provided. The method includes: putting ferrochrome as an anode and placing the anode into an acidic electrolyte together with a cathode, and then turning on a power supply for electrolysis reaction, until an electrolysis completion solution containing the trivalent chromium salt and a trivalent iron salt is directly prepared. Compared with the prior art, the one-step electrochemical synthesis of the trivalent chromium salt solution can be achieved without a hexavalent chromium salt stage, avoiding the generation of chromium-containing waste residue, shortening the process flow and significantly improving the production efficiency of the trivalent chromium salt; furthermore, the reaction can be carried out at room temperature and normal pressure without the use of fine chromium iron powders and a high-concentration acidic electrolyte.