CAS: 10139-58-9; Rhodium Nitrate Solution

专利信息

专利号:US-2007249874-A1
优先权日:2004-06-23
标题 :Synthesis of the Micro-Porous Silica Gel and Its Application to the Preparation of Catalysts for C2 Oxygenates Synthesis from Syngas
发明人：LUO HONGYUAN; DING YUNJIE; YIN HONGMEI
权利人:BP PLC
摘要:A synthesis of the micro-porous silica gel and its application to preparation of catalysts for C 2 oxygenates synthesis from syngas is invented. The small particles of silica gel which are, produced by sol gel process are heated in a basic solution, followed by drying and/or calcinations, and thus form micro-porous silica as catalyst support. The basic solution can be one or a mixed solution of hydroxides, carbonates, bicarbonates, formates and acetates of alkali metal and ammonium. The obtained micro-porous silica can be impregnated with the solutions of rhodium salt and other transition element salts (as promoter precursors), followed by drying and/or calcinations, thus forming a micro-porous silica supported rhodium based catalyst. The rhodium salt can be RhCl 3 or Rh(NO 3 ) 3 . The promoter precursors can be water-dissolvable transition metal salts, rare earth metals salts, alkali metal salts and alkali earth metal salts. The obtained catalysts show high activity and selectivity in the synthesis of C 2 -oxygenates by the hydrogenation of CO under mild process conditions.

专利号:US-4116994-A
优先权日:1976-04-05
标题:Hydrocarbon synthesis from CO and H2 using Rh supported on titanium oxides
发明人：VANNICE M ALBERT; GARTEN ROBERT L
权利人:EXXON RESEARCH ENGINEERING CO
摘要:A new method for the selective synthesis of olefinic hydrocarbons of from C 2 -C 5 from CO and H 2 which method comprises the steps of passing a synthesis gas stream of CO and H 2 at a H 2 /CO ratio of from 0.1-10 at a space velocity of from 100 hr. -1 to 50,000 hr. -1 over a catalyst system comprising from 0.01 to 10 wt. % rhodium deposited on TiO 2 , other titanium-containing oxides or mixtures of said titanium-containing oxides for a time sufficient to effect the generation of desired olefinic products, at a temperature of from 100°-500° C. and a pressure of from 100 to 10 5 kPa. The supported rhodium catalyst has a surface area of from 10 to 60 m 2 g -1 of total catalyst with a preferred rhodium crystallite size ≦ 5 nm. n Rhodium supported on TiO 2 , other titanium-containing oxides, or mixtures of titanium oxides results in a catalyst system which exhibits superior hydrocarbon synthesis characteristics. Such supported rhodium catalysts exhibit selectivity to olefinic products of from 2 to 5 carbons inclusive in processes for olefin generation accompanied by greater product yields and exhibit improved longevity, tolerance to sulfur and activity maintenance.

专利号:US-9822053-B2
优先权日:2016-01-28
标题:Single step conversion of N-butyraldehyde to 2-ethylhexanal
发明人：BOPPANA Venkata Bharat; HAMPTON JR KENNETH WAYNE; LIU ZHUFANG; SUMNER JR CHARLES EDWAN; TUSTIN GERALD C; STEINMETZ GUY RALPH; STEFFEY MELISSA PAGE
权利人:EASTMAN CHEM CO
摘要:Disclosed is a method of making and using a titania supported palladium catalyst for the single step synthesis of 2-ethylhexanal from a feed of n-butyraldehyde. This titania supported palladium catalyst demonstrates high n-butyraldehyde conversion but also produces 2-ethylhexanal in an appreciable yield with maintained activity between runs. This method provides a single step synthesis of 2-ethylhexanal from n-butyraldehyde with a catalyst that can be regenerated that provides cleaner downstream separations relative to the traditional caustic route.

专利号:US-2002184969-A1
优先权日:2001-03-29
标 题 :Combinatorial synthesis of particulate materials
发明人：KODAS TOIVO T; HAMPDEN-SMITH MARK J
摘要:Methods for fabricating and analyzing particulates having a varying material property such that particulates having a selected desirable material property can be identified. The particulates can be analyzed to determine the particulates having the best properties for a particular application. The particulates can be metals, inorganic compounds, organic compounds and composites. The method of the present invention enables the rapid and economical fabrication and screening of a large number of different compositions.

专利号:US-7169731-B2
优先权日:2003-02-12
标题 :Method for the synthesis of a fuel cell electrocatalyst
发明人：CHONDROUDIS KONSTANTINOS; DEVENNEY MARTIN; GORER ALEXANDER
权利人:HONDA MOTOR CO LTD
摘要:A method for forming a supported metal-containing powder. The method comprises forming a dispersion of a particulate support in a solution, which comprises a solvent and a dissolved metal. Heat is removed from the dispersion to precipitate the dissolved metal from the solution onto the particulate support. Preferably, enough heat is removed to freeze the solution. Also, the heat is removed is preferably removed from the dispersion by contacting a container containing the dispersion with a cryogenic liquid. After precipitating the dissolved metal onto the particulate support, the particulate support is separated from the solution, preferably by freeze-drying, to yield the supported metal-containing powder, which comprises the particulate support and a precipitated metal thereon.

专利号:US-4374287-A
优先权日:1980-06-27
标 题 :Synthesis of alcohols
发明人：IMAI TAMOTSU; HOMEIER EDWIN H
权利人:UOP INC
摘要:Alcohol may be synthesized by treating olefinic hydrocarbons with carbon monoxide and hydrogen in a hydroformylation zone utilizing a rhodium complex catalyst to effect the reaction. Following formation of the alcohol, the catalyst may be extracted from the alcohol by treatment with an aqueous ammonium hydroxide solution. Thereafter the aqueous ammonium hydroxide solution containing the catalyst is then stripped of ammonia by treatment with carbon monoxide or carbon monoxide containing gas. The aqueous ammonium hydroxide solution containing the rhodium complex catalyst is then stripped of a portion of water and the remaining solution is thereafter recycled to the hydroformylation zone.