公开(公告)号：US4609484A

公开(公告)日：1986-09-02

申请号：US635407

申请日：1984-07-30

申请人： Giulio Alberti ,  Francesco Bartoli ,  Umberto Costantino ,  Francesco Di Gregorio

发明人： Giulio Alberti ,  Francesco Bartoli ,  Umberto Costantino ,  Francesco Di Gregorio

IPC分类号： B01J39/10 ,  B01J39/08 ,  B01J39/12 ,  C01B25/16 ,  C01B25/37 ,  C01G28/02 ,  C09K3/00

CPC分类号： B01J39/085 ,  B01J39/12 ,  C01B25/16 ,  C01G28/02 ,  C01P2002/20 ,  C01P2002/72 ,  C01P2002/78

摘要： Mixed phosphorous or arsenic salts of tetravalent metals are provided having the general formula M(HAO.sub.4).sub.2-x (HAO.sub.3).sub.x.nH.sub.2 O, where M is Zr, Ti or Hf, A is phosphorus or arsenic, x is between 0.05 and 1.95, and n is 0 to 6. The salts are highly stable and have wide potential application in the fields of ion exchange, catalysis, intercalation of molecules, solid electrolytes, and chromatography. The salts are prepared by reacting a halide, oxyhalide, nitrate, sulphate, phosphate or oxide of the tetravalent metal, preferably in an aqueous medium, with at least two oxygenated acids of phosphorus and/or arsenic.

摘要翻译： 提供具有通式M（HAO4）2-x（HAO3）x.nH2O，其中M为Zr，Ti或Hf，A为磷或砷的x为0.05至1.95的四价金属的混合的磷或砷盐， 并且n为0至6.该盐是高度稳定的，并且在离子交换，催化，分子插入，固体电解质和色谱领域具有广泛的应用。 所述盐通过使四价金属的卤化物，卤氧化物，硝酸盐，硫酸盐，磷酸盐或氧化物优选在水性介质中与磷和/或砷的至少两种氧化酸反应来制备。

公开(公告)号：US4826663A

公开(公告)日：1989-05-02

申请号：US862809

申请日：1986-05-13

申请人： Giulio Alberti ,  Francesco Bartoli ,  Umberto Constantino ,  Francesco Di Gregorio ,  Claudio Valentini

发明人： Giulio Alberti ,  Francesco Bartoli ,  Umberto Constantino ,  Francesco Di Gregorio ,  Claudio Valentini

IPC分类号： B01J27/18 ,  B01J39/08 ,  B01J39/12 ,  C01B25/37 ,  C07D453/04 ,  C01B15/16 ,  C01B25/26

CPC分类号： C01B25/372 ,  B01J39/085 ,  C07D453/04

摘要： The invention relates to a zirconium phosphate in particles having sizes comprised within the range of from 1 to 100 .mu.m, a lamellar structure with interlayer distance, in the anhydrous state, comprised within the range of from 7.9 to 8.2 .ANG. and a surface area comprised within the range of from 9 to 20 m.sup.2 /g.The method consists in altering the lamellar structure of a zirconium phosphate with layer structure of alpha type by intercalating into it an organic substance containing a proton-acceptor group and water and by a treatment with ultrasounds, in regenerating the hydrogen form of said zirconium phosphate by an acid and in washing the same with diluted acids and/or water.

摘要翻译： 本发明涉及一种粒径在1至100μm范围内的颗粒中的磷酸锆，层间距离为无水状态的层状结构包括在7.9至8.2范围内，表面积包括 在9至20m2 / g的范围内。 该方法包括通过将含有质子 - 受体基团和水的有机物质插入其中的α型层结构来改变磷酸锆的层状结构，并通过用超声波处理，通过以下步骤再生氢形式的所述磷酸锆： 酸，并用稀酸和/或水洗涤。

公开(公告)号：US4053521A

公开(公告)日：1977-10-11

申请号：US684487

申请日：1976-05-10

申请人： Matteo Giongo ,  Walter Marconi ,  Nicola Palladino ,  Francesco Di Gregorio

发明人： Matteo Giongo ,  Walter Marconi ,  Nicola Palladino ,  Francesco Di Gregorio

IPC分类号： C07C29/143 ,  C07C51/36 ,  C07C51/487 ,  C07C209/52 ,  C07F5/00 ,  C07F9/50 ,  C07C29/14 ,  C07C29/00

CPC分类号： C07C209/52 ,  C07C29/143 ,  C07C51/36 ,  C07C51/487 ,  C07F5/006 ,  C07F9/50

摘要： A prochiral or racemic substrate such as a prochiral ketone is converted into an optically active product through a process wherein said substrate is subjected to an asymmetric hydrogen transfer reaction by means of an optically active amino-alane or polyimino-alane represented by the formulaH.sub.2 AlNR.sub.1 R.sub.2, H Al(NR.sub.1 R.sub.2).sub.2 or (H AlNR).sub.nwherein R, R.sub.1 and R.sub.2 are alkyl, aryl or cycloalkyl radicals, n is an integer higher than 4, and which contains an Al -- N direct bond and an Al -- H bond per aluminum atom, and the third substituent bound to aluminum is halogen, --H, ##STR1## or --OR wherein R has the aforesaid meaning, and wherein the asymmetry center is constituted by a primary or secondary amine group containing an optically active alkyl radical.