📜Iodozirconic Acid 以 Neat (No Solvent) 用作溶剂,化学反应生成碘化锆(Iv) 参考文献:Chauvenet,E.; Davidowicz,J.,Comptes Rendus Hebdomadaires Des Seances De L'Academie Des Sciences,1929,Vol. 189,P. 408-409 标题:Chauvenet,E.; Davidowicz,J.,Comptes Rendus Hebdomadaires Des Seances De L'Academie Des Sciences,1929,Vol. 189,P. 408-409
专利信息
专利号:US-7098354-B2 优先权日:2002-10-25 标 题:Racemoselective synthesis of rac-diorganosilylbis(2-methylbenzo[e]indeyl)zirconium compounds 发明人:DAMRAU HANS-ROBERT; MUELLER PATRIK; GARCIA VALERIE; SIDOT CHRISTIAN; TELLIER CHRISTIAN; LELONG JEAN-FRANCOIS 权利人:BASELL POLYOLEFINE GMBH 摘要:The present invention relates to a specific process for the diastereoselective synthesis of rac-diorganosilylbis(2-methylbenzo[e]indenyl)zirconium compounds of the formula I, n nby reacting the silyl-bridged bisindenyl ligand with a dihalozirconium bis(3,5-di-tert-butylphenoxide)-base adduct to form the diorganosilylbis(2-methylbenzo[e]indenyl)zirconium bis(3,5-di-tert-butylphenoxide) and subsequently replacing the phenoxide groups by X using suitable replacement reagents to give the compound of the formula I; where the substituents X can be identical or different and are each F, Cl, Br, I or linear, cyclic or branched C 1-10 -alkyl; and the substituents R can be identical or different and are each linear, cyclic or branched C 1-10 -alkyl or C 6-10 -aryl; and also to the use of these compounds as catalysts.
专利号:US-9079164-B2 优先权日:2012-03-26 标题:Single reaction synthesis of texturized catalysts 发明人:WOODFIELD BRIAN F; SMITH STACEY; SELCK DAVID; BARTHOLOMEW CALVIN H; MA XUCHU; XU FEN; OLSEN REBECCA E; ASTLE LYNN 权利人:UNIV BRIGHAM YOUNG 摘要:Methods are described for making a texturized catalyst. The textural promoter may be a high-surface area, high-porosity, stable metal oxide support. The catalyst is manufactured by reacting catalyst precursor materials and support materials in a single, solvent deficient reaction to form a catalyst. The catalyst may be particles or a coating or partial coating of a support surface.
专利号:US-9896523-B2 优先权日:2015-06-26 标题 :Ziegler-Natta catalyst synthesis and process thereof 发明人:SINGH GURMEET; KUMAR NARESH; KAUR SUKHDEEP; BANTU BHASKER; KAPUR GURPREET SINGH; SHASHIKANT 权利人:INDIAN OIL CORP LTD 摘要:The present invention describes a process of preparing a catalyst for olefin polymerization comprising: (i) treating a magnesium metal with an organohalide along with an internal donor to obtain a reaction mixture having solid component (A); (ii) treating the reaction mixture having solid component (A) with an acyl halide to obtain a reaction mixture having solid component (B); and (iii) treating the reaction mixture having solid component (B) of step (ii) with a transition metal compound to obtain the catalyst. The present invention also relates to a process for preparation of a catalyst system from said catalyst and preparation of a polyolefins from the catalyst system.
专利号:US-2017312313-A1 优先权日:2016-04-28 标 题 :Synthesis of ultra-small ceria-zirconia nanoparticles and ceria-zirconia nano complex and its application as a therapeutic agent for sepsis
专利号:US-7973193-B2 优先权日:2003-10-02 标题:Method for producing ester condensed product 发明人:ISHIHARA KAZUAKI; YAMAMOTO HISASHI 权利人:JAPAN SCIENCE & TECH AGENCY 摘要:The present invention is to provide a method for preparing an ester condensate and a catalyst therefore; wherein the method enables synthesis of enormous amounts of ester condensates comprising a specific structure in good yield, by a reaction of carboxylic acid and alcohol in equimolar amounts, while generation of by-products is prevented; wherein the catalyst exhibits good catalytic efficiency as a catalyst for use, the use of the catalyst in small amount is sufficient, and the catalyst is reusable and can be used repeatedly; therefore, the method for preparing an ester condensate of the present invention and the catalyst therefore can be applied to industrial methods which are preferable in view of green chemistry. Esterification reaction is performed by using a catalyst comprising a zirconium(IV) compound and/or a hafnium(IV) compound and an iron compound and a gallium compound. It is preferable that the zirconium(IV) compound is a compound represented by Zr(OH) a (OR 1 ) b , wherein, R 1 represents an acyl group or an alkyl group, and each of a and b is 0 or any one of integers of 1 to 4 and the relationship of a+b=4 is satisfied, and a zirconium(IV) halide.
专利号:WO-2019045418-A1 优先权日:2017-08-28 标题 :An organic zinc catalyst, an organic zinc catalyst prepared by the method, and a method for producing a polyalkylene carbonate resin using the catalyst 发明人:BANG JUNGUP; PARK KYOSUNG; PARK SEUNG YOUNG; HWANG GYO HYUN; CHOI BYUNG HEE; KIM SUNG-KYOUNG; BANG YONGJU 权利人:LG CHEMICAL LTD 摘要:The present invention relates to a method for producing an organic zinc catalyst used in the synthesis of a polyalkylene carbonate resin, an organic zinc catalyst provided therefrom, and a method for producing a polyalkylene carbonate resin using the catalyst. The organic zinc catalyst according to the present invention may contain Zr in a certain amount on the surface through a simple process and exhibit improved catalytic activity over conventional processes in the polymerization process for the production of polyalkylene carbonate resin.