公开(公告)号：US3692829A

公开(公告)日：1972-09-19

申请号：US3692829D

申请日：1970-12-15

Applicant: KNAPSACK AG

Inventor： SENNEWALD KURT ,  ERPENBACH HEINZ ,  HANDTE HEINZ ,  LORK WINFRIED

IPC: B01D3/40 ,  B01D11/04 ,  C07C51/00 ,  C07C51/48 ,  C07C53/08 ,  C07C57/07 ,  C07C67/00 ,  C07C57/04

CPC classification number: C07C51/48 ,  C07C57/04

Abstract: Pure acrylic acid is isolated from an aqueous crude acid containing acrylic acid together with minor proportions of acetic acid, formaldehyde and high boilers boiling at a temperature higher than 220* C by liquid-liquid extraction with the use of 3,3,5-trimethylcyclohexanone and/or isophorone as the extractant(s). To this end, the aqueous acrylic acid-containing crude acid is subjected in an extraction zone to counterflow extraction with the use of the extractant(s) and with the resultant formation of an organic extract containing acrylic acid, acetic acid, high boilers and minor proportions of water, which are dissolved in the extractant; the extract is introduced approximately into the midsection of a first distilling column; acetic acid and water are removed overhead under reduced pressure; the base product of the first distilling column, containing extractant(s), acrylic acid and high boilers, is delivered approximately to the midsection of a second distilling column; pure acrylic acid is distilled off overhead under reduced pressure; and the base product of the second distilling column, consisting of high boilers and extractant(s), is recycled to the extraction zone.

Abstract translation: 将纯丙烯酸与含有丙烯酸的含水粗酸以及少量乙酸，甲醛和高沸点沸点的高沸点物质分离，通过液 - 液萃取，使用3,3,5-三甲基环己酮 和/或异佛尔酮作为萃取剂。 为此，将含水丙烯酸的粗酸在萃取区中进行，使用萃取剂进行逆流萃取，形成含有丙烯酸，乙酸，高沸点和次要的有机萃取物 溶解在萃取剂中的水的比例; 将提取物大致引入第一蒸馏塔的中部; 乙酸和水在减压下从顶部除去; 含有萃取剂，丙烯酸和高锅炉的第一蒸馏塔的基础产物大约送到第二蒸馏塔的中部; 在减压下将纯丙烯酸蒸馏出顶部; 并且由高锅炉和萃取剂组成的第二蒸馏塔的基础产物被再循环到萃取区。

公开(公告)号：US3650986A

公开(公告)日：1972-03-21

申请号：US3650986D

申请日：1968-12-05

Applicant: KNAPSACK AG

Inventor： SENNEWALD KURT ,  VOGT WILHELM ,  ERPENBACH HEINZ ,  GLASER HERMANN ,  DYRSCHKA HELMUT

IPC: B01J21/08 ,  B01J23/63 ,  B01J31/04 ,  B01J31/40 ,  C07C67/055 ,  C07C67/04

CPC classification number: B01J31/04 ,  B01J21/08 ,  B01J23/63 ,  B01J31/1616 ,  B01J31/4038 ,  C07C67/055 ,  Y02P20/584 ,  C07C69/01 ,  C07C69/15

Abstract: CARRIER CATALYST-AND PROCESS FOR MAKING AND ACTIVATING IT-FOR THE PRODUCTION OF UNSAURATED ESTERS OF CARBOXYLIC ACID AND ACIDS FROM AN OLEFINIC COMPOUND, A CARBOXYLIC ACID AND MOLECULAR OXYGEN IN THE GAS PHASE, THE CARRIER CATALYST CONTAINING PALLADIUM ACETATE, ALKALI METAL ACETATE AND ONE OR MORE URANIUM COMPOUNDS AS ITS ACTIVE CONSTITUENTS.

公开(公告)号：US3514264A

公开(公告)日：1970-05-26

申请号：US3514264D

申请日：1967-08-03

Applicant: KNAPSACK AG

Inventor： SENNEWALD KURT ,  BENDER LUDWIG ,  GEHRMANN KLAUS ,  SCHALLUS ERICH ,  STEPHAN HANS-WERNER ,  STRIE LOTHAR

IPC: C01B3/34 ,  H05B7/18 ,  C07C11/24

CPC classification number: C01B3/342 ,  C10G9/36 ,  C10G15/12 ,  C10G47/00 ,  Y10S585/924

公开(公告)号：US3674839A

公开(公告)日：1972-07-04

申请号：US3674839D

申请日：1970-11-25

Applicant: KNAPSACK AG

Inventor： VOGT WILHELM ,  SENNEWALD KURT ,  GLASER HERMANN

IPC: C07C69/18 ,  A61K8/37 ,  A61Q19/00 ,  C07C20060101 ,  C07C67/00 ,  C07C67/04 ,  C07C69/00 ,  C07C69/10

CPC classification number: A61Q19/00 ,  A61K8/375 ,  C07C67/05 ,  C07C67/54 ,  C07C69/18 ,  C07C69/16

Abstract: Production of glycerol triacetate and glycerol diacetate by reacting allyl acetate, acetic acid and molecular oxygen at elevated temperatures in liquid phase. The compounds are more particularly produced by reacting a solution of allyl acetate in acetic acid with an oxygen/inert gas-mixture at 80* to 250* C. and under 1 to 200 atm. abs., in the absence of catalysts.

Abstract translation: 通过在液相中升高的温度下使乙酸乙烯酯，乙酸和分子氧反应生产甘油三乙酸酯和甘油二乙酸酯。 通过使乙酸烯丙酯溶液与80〜250℃和1〜200atm的氧/惰性气体混合物反应，更具体地制备了这些化合物。 绝对不存在催化剂。

公开(公告)号：US3658886A

公开(公告)日：1972-04-25

申请号：US3658886D

申请日：1969-02-11

Applicant: KNAPSACK AG

Inventor： SENNEWALD KURT ,  HAUSER ALFRED ,  GEHRMANN KLAUS ,  LORK WINFRIED

IPC: C07C51/25 ,  C07C51/44 ,  C07C51/48 ,  C07C57/07 ,  C07C67/08 ,  C07C69/54

CPC classification number: C07C51/48 ,  C07C51/252 ,  C07C51/44 ,  C07C67/08 ,  C07C67/54 ,  C07C67/56 ,  C07C57/04 ,  C07C69/54

Abstract: PRODUCTION OF ALIPHATIC ARYCLIC ACID ESTERS BY OXIDATION OF PROPYLENE AND/OR ACROLEIN WITH OXYGEN IN THE PRESENCE OF STEAM AND INERT GAS, AT A TEMPERATURE BETWEEN 300 AND 600*C., IN CONTACT WITH A CATALYST. HOT ACRYLIC ACID-CONTAINING REACTION GAS IS SCRUBBED WITH A HIGH BOILER MIXTURE, WHICH IS OBAINED AS A BY-PRODUCT DURING THE PROCESS AND SUBSTANTIALLY CONSISTS F MALEIC ACID ESTER, POLYACRYLIC ACIDS AND POLYACRYLIC ACID ESTERS, THE RESULTING ACRYLIC ACID-CONTAINING EXTRACTIS FREED B DISTILLATIVE TREATMENT FROM THE LOW BOILERS WATER, ACETIC ACID, ACROLEIN AND FORMALDEHYDE, AND REACTED LATER, IN THE PRESENCE OF ACID ION EXCHANGER RESINS, WITH AN ALIPHATIC ALCHOL HAVING FROM 1 TO 8 CARBONS ATOMS, THE RESLTING ARCYLIC ACID ESTER BEING DISTRILLED OFF AND THE HIGH BOILER MIXTURE BEING RECYCLED FOR SCRUBBING FUTHER ACRYLIC ACID-CONTAINING REACTION GAS.

公开(公告)号：US3655747A

公开(公告)日：1972-04-11

申请号：US3655747D

申请日：1968-03-22

Applicant: KNAPSACK AG

Inventor： SENNEWALD KURT ,  VOGT WILHELM ,  ERPENBACH HEINZ ,  GLASER HERMANN

IPC: C07C51/235 ,  C07C51/26

CPC classification number: C07C51/235 ,  C07C53/08 ,  C07C53/122

Abstract: CARBOXYLIC ACIDS ARE PRODUCED BY OXIDATION OF ALIPHATIC ALDEHYDES WITH OXYGEN OR AN OXYGEN-CONTAINING GAS MIXTURE IN THE GAS PHASE IN CONTACT WITH A CATALYST BY OXIDIZING AN ALIPHATIC ALDEHYDE CONTAINING FROM 2 TO 6 CARBON ATOMS AT ELEVATED TEMPERATURES IN THE PRESENCE OF A CARRIER CATALYST CONTAINING METALLIC PALLADIUM AND/OR PALLADIUM OXIDE AND/OR A PALLADIUM SALT AND AT LEAST ONE FURTHER SUBSTANCE COMPRISING PLATINUM, RHODIUM, RUTHENIUM, IRIDIUM, COPPER, SILVER, GOLD, ZINC, CADMIUM, TIN, LEAD, BISMUTH, CHROMIUM, MOLYBDENUM, TUNGSTEN, MANGANESE, IRON, COBALT, NICKEL OR TELLURIUM IN METALLIC FORM OR IN OXIDE OR SALT FORM, AND/OR AN ALKALI METAL OR ALKALINE EARTH METAL COMPOUND AS AN ACTIVATOR.

公开(公告)号：US3637819A

公开(公告)日：1972-01-25

申请号：US3637819D

申请日：1968-12-05

Applicant: KNAPSACK AG

Inventor： SENNEWALD KURT ,  VOGT WILHELM ,  ERPENBACH HEINZ ,  GLASER HERMANN ,  DYRSCHKA HELMUT

IPC: C07C67/04 ,  C07C67/055

CPC classification number: C07C67/055 ,  C07C69/01 ,  C07C69/15

Abstract: PRODUCTION OF UNSATURATED ESTERS OF ARBOXYLIC ACIDS BY REACTION OF AN OLEFINIC COMPOUND AND AN ALIPHATIC OR AROMATIC CARBOXYLIC ACID, WHICH EACH CONTAIN FROM 2 TO 20 CARBON ATOMS, WITH MOLECULAR OXYGEN, OR AIR, IN THE GAS PHASE, AT ELEVATED TEMPERATURE AND IN CONTACT WITH A CARRIER CATALYST, THE REACTION BEING CARRIED OUT IN CONTACT WITH A CARRIER CATALYST CONTAINING PALLADIUM ACETATE, ALKALI METAL ACETATE AND ONE OR MORE VANADIUM COMPOUNDS AS ITS ACTIVE CONSTITUENTS, THE DRY, POWDERY CARRIER CATALYST BEING IRRADIATED WITH ULTRAVIOLET AND/OR VISIBLE LIGHT, PRIOR TO USING IT.

公开(公告)号：US3483222A

公开(公告)日：1969-12-09

申请号：US50857665

申请日：1965-11-18

Applicant: KNAPSACK AG

Inventor： SENNEWALD KURT ,  REHBERG HEINRICH

IPC: C07C51/235 ,  C07D315/00 ,  C07D9/00 ,  C07D5/06 ,  C07D7/06

CPC classification number: C07D315/00 ,  C07C51/235 ,  C07C53/122 ,  C07C63/04 ,  C07C53/02 ,  C07C63/06 ,  C07C53/08

公开(公告)号：US3435083A

公开(公告)日：1969-03-25

申请号：US64791767

申请日：1967-06-22

Applicant: KNAPSACK AG

Inventor： BAADER HERBERT ,  SENNEWALD KURT ,  REIS HELMUT

IPC: C07C17/25 ,  C07C17/34

CPC classification number: C07C17/25 ,  C07C21/20 ,  C07C21/21

公开(公告)号：US3432544A

公开(公告)日：1969-03-11

申请号：US3432544D

申请日：1967-03-21

Applicant: KNAPSACK AG

Inventor： SENNEWALD KURT ,  ERPENBACH HEINZ ,  VOGT WILHELM ,  JOEST HERBERT

IPC: C07C51/487 ,  C07C53/02 ,  C07C67/06

CPC classification number: C07C53/02 ,  C07C51/487 ,  C07C53/08