公开(公告)号：US3799979A

公开(公告)日：1974-03-26

申请号：US25667672

申请日：1972-05-25

申请人： DEGUSSA

发明人： HENSEL J ,  LUSSLING T ,  SCHREYER G ,  WEIGERT W ,  NOLL E ,  SCHAEFER H

IPC分类号： B01J23/30 ,  B01J23/887 ,  B01J27/199 ,  C07C51/25 ,  C07C51/20 ,  C07C57/04

CPC分类号： B01J23/002 ,  B01J23/30 ,  B01J23/8876 ,  B01J27/199 ,  B01J2523/00 ,  C07C51/252 ,  C07C57/04 ,  B01J2523/53 ,  B01J2523/55 ,  B01J2523/68 ,  B01J2523/69 ,  B01J2523/3737 ,  B01J2523/54 ,  B01J2523/842 ,  B01J2523/845 ,  B01J2523/847

摘要： ALPHA BETA UNSATURATED CARBOXYLIC ACIDS ARE PRODUCED BY CATALYTCALLY OXU IDIZING ALKENES WITH OXYGEN, SUITABLY IN THE PRESENCE OF STEAM, ON A MIXED CATALYST BED CONSISTING OF A MIXTURE AND/OR COMPOUND OF OXIDES OF ANTIMONY, MOLYBDENUM, VANADIUM, AND TUNGSTEN AND IN A GIVEN CASE ONE OR MORE OXIDES OF LEAD SILVER COPPER TIN TITANIUM BISMUTH AND/OR OXYGEN CONTAINING COMPOUNDS OF THESE ELEMENTS AS THE FIRST CATALYST AND A MIXTURE AND OR COMPOUNDS OF OXIDES OF NICKEL, COBALT IRON BISMUTH PHOSPHORUS, MOLYBDENUM AND IN A GIVEN CASE SAMARIUM OR TANTALUM AND/OR OXYGEN CONTAINING COMPOUNDS OF THESE ELEMENTS AS SECOND CATALYSTS. THE CATALYSTS CAN INCLUDE CARRIERS.

公开(公告)号：US3857886A

公开(公告)日：1974-12-31

申请号：US28454472

申请日：1972-08-29

申请人： DEGUSSA

发明人： SCHREYER G ,  HENSEL J ,  SCHAEFER H

IPC分类号： C07C231/00 ,  C07C20060101 ,  C07C67/00 ,  C07C231/06 ,  C07C233/03 ,  C07C103/30

CPC分类号： C07C233/00

摘要： Pure N-alkyl formamides are obtained by reacting an olefin or alcohol with hydrogen cyanide according to the Ritter reaction in the presence of an acid. The N-alkyl formamide formed is extracted from the unneutralized acid reaction solution with a polar acid stable organic solvent. The N-alkyl formamide can be recovered from the organic solvent in conventional manner, e.g., by distillation, for example in a vacuum.

摘要翻译： 根据Ritter反应，在酸存在下，使烯烃或醇与氰化氢反应，得到纯的N-烷基甲酰胺。 形成的N-烷基甲酰胺用极性酸稳定的有机溶剂从未中和的酸反应溶液中提取。 N-烷基甲酰胺可以常规方式从有机溶剂中回收，例如通过蒸馏，例如在真空中回收。

公开(公告)号：US3773692A

公开(公告)日：1973-11-20

申请号：US3773692D

申请日：1971-10-12

申请人： DEGUSSA

发明人： HENSEL J ,  LUSSLING T ,  NOLL E ,  SCHAEFER H ,  WEIGERT W

IPC分类号： B01J23/30 ,  B01J23/68 ,  B01J23/84 ,  B01J23/888 ,  B01J37/02 ,  C07C51/25 ,  C07C57/055 ,  B01J11/06 ,  B01J11/20 ,  B01J11/22

CPC分类号： B01J23/8885 ,  B01J23/30 ,  B01J23/687 ,  B01J23/84 ,  B01J37/0236 ,  C07C51/252 ,  C07C57/04

摘要： Catalyst for the oxidation of an Alpha , Beta -unsaturated aldehyde to an Alpha , Beta -unsaturated carboxylic acid, said catalyst comprising (A) a mixture of oxides of the elements antimony, molybdenum, vanadium and tungsten and/or compounds of said elements and oxygen, and (B) at least one oxide or oxygen containing compound of the elements lead, silver, copper, tin, titanium or bismuth, said catalyst having an atomic ratio of antimony to molybdenum to vanadium to tungsten to Group (B) elements of about 1 - 60 : 12 : 0.5 - 25 : 0.1 - 12 : 0.1 - 12. Processes for the use and preparation of the catalysts are provided.