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1.发明授权
公开(公告)号：US3631079A
公开(公告)日：1971-12-28
申请号：US3631079D
申请日：1968-03-22
Applicant: KNAPSACK AG
Inventor： SENNEWALD KURT , VOGT WILHELM , ERPENBACH HEINZ , GLASER HERMANN
IPC: C07C20060101 , C07C67/04 , C07C67/05 , C07C67/055 , C07C69/00 , C07C69/02 , C07C69/14 , C07C69/15 , C07C69/24 , C11C3/00
CPC classification number: C07C67/055 , C07C69/01 , C07C69/24 , C07C69/15
Abstract: PRODUCTION OF CARBOXYLIC ACIDS (DEFINED AS CARBOXYLIC ACIDS I) AND OF UNSATURATED ESTERS OF CARBOXYLIC ACIDS (DEFINED AS CARBOXYLIC ACIDS II), WHEREBY THE CARBOXYLIC ACID II MAY BE IDENTICAL WITH THE CARBOXYLIC ACID I, BY REACTING AN OLEFINIC COMPOUND IN THE PRESENCE OF AN ALDEHYDE, WHICH IN STRUCTURE AND NUMBER OF CARBON ATOMS CORRESPONDS TO THE CARBOXYLIC ACID I, AND IN THE PRESENCE OF THE CARBOXYLIC ACID II, EACH OF THE SAID OLEFINIC COMPOUND, THE SAID ALDEHYDE AND THE SAID CARBOXYLIC ACIDS CONTAINING 2 TO 20 CARBON ATOMS, WITH MOLECULAR OXYGEN OR AIR IN THE GAS PHASE, AT ELEVATED TEMPERATURE AND IN CONTACT WITH A PALLADIUM-CONTAINING CARRIER CATALYST.
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2.发明授权
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
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。
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3.发明授权
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
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.
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公开(公告)号：US3691096A
公开(公告)日：1972-09-12
申请号：US3691096D
申请日：1970-08-21
Applicant: KNAPSACK AG
Inventor： SENNEWALD KURT , ERPENBACH HEINZ , VOGT WILHELM , LORK WINFRIED , PRINZ PETER
CPC classification number: C07C45/35 , B01J23/8993 , B01J27/192 , C07C51/252 , D01D10/049 , C07C47/22 , C07C57/04
Abstract: Preparation of a carrier-supported catalyst consisting of oxides of iron, bismuth, molybdenum and optionally silver and phosphorus in the atomic ratio of Ag0 1.5Fe0.1 12 Bi0.1 12P0 5Mo12O30 110, and of silicon carbide, aluminum oxide or silicon dioxide as the carrier. The catalyst is prepared in two steps. In the first step a porous carrier is impregnated at least once with an aqueous solution of a molybdenum compound and the water is evaporated; in the second step, the said carrier is impregnated at least once, at temperatures of between 20* and 100*C, with an aqueous nitric acid solution of iron, bismuth and optionally silver nitrates and optionally phosphoric acid; after the last impregnation, the carrier so treated is allowed to remain in contact with the said aqueous nitric acid solution for a period of between 5 and 24 hours, water and nitric acid are evaporated with continuous agitation of the carrier, and the carrier with the said salts adhered thereto is dried at temperatures of between 100* and 300*C, and annealed at temperatures of between 450* and 550*C.
Abstract translation: 由AgO-1.5Fe0.1-12 Bi0.1-12P0-5Mo12O30-110的原子比由铁，铋，钼和任选的银和磷的氧化物组成的载体负载催化剂的制备和碳化硅，铝 氧化物或二氧化硅作为载体。 催化剂分两步制备。 在第一步中，多孔载体用钼化合物的水溶液浸渍至少一次，蒸发水; 在第二步中，所述载体在20-100℃的温度下，用铁，铋和任选的硝酸银和任选的磷酸的硝酸水溶液浸渍至少一次; 在最后浸渍之后，将如此处理的载体与硝酸水溶液保持接触5至24小时之间，继续搅拌载体，蒸发水和硝酸，并将载体与 所述盐附着在100℃至300℃的温度下干燥，并在450-550℃的温度下进行退火。
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公开(公告)号：US3476776A
公开(公告)日：1969-11-04
申请号：US3476776D
申请日：1965-10-12
Applicant: KNAPSACK AG
Inventor： SENNEWALD KURT , ERPENBACH HEINZ , REHBERG HEINRICH , VIERTEL GUNTER
IPC: C07D301/14 , C07D1/08
CPC classification number: C07D301/14
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Patent Agency Ranking
公开(公告)号：US3627821A
公开(公告)日：1971-12-14
申请号：US3627821D
申请日：1968-12-18
Applicant: KNAPSACK AG
Inventor： SENNEWALD KURT , VOGT WILHELM , ERPENBACH HEINZ , GLASER HERMANN , DYRSCHKA HELMUT
CPC classification number: C07C67/055 , C07C69/15
Abstract: Production of unsaturated esters of carboxylic acids by reaction of an olefinic compound and an aliphatic or aromatic carboxylic acid, which each contain from two 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 uranium compounds as its active constituents.
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7.发明授权Process for isolating acrylic acid from aqueous crude acid by extraction with an ester,water washing and azeotropic distillation of the washed extract 失效用水，水洗涤和洗涤提取物的AZEOTROPIC蒸馏法从水溶液中分离丙烯酸的方法
公开(公告)号：US3553261A
公开(公告)日：1971-01-05
申请号：US3553261D
申请日：1968-06-14
Applicant: KNAPSACK AG
Inventor： SENNEWALD KURT , GEHRMANN KLAUS , HANDTE HEINZ , ERPENBACH HEINZ , REIS HELMUT
Abstract: ISOLATION OF PURE ACRYLIC ACID FROM AQUEOUS CRUDE ACID CONTAINING ACRYLIC ACID AND IN ADDITION SMALL PROPORTIONS OF ACETIC ACID AND POSSIBLY FORMALDEHYDE, BY ETHYL ACETATE EXTRACTION COMBINED WITH A SIMULTANEOUS WATER-WASH OF THE RESULTING ORGANIC EXTRACT AND DISTILLATIVE SEPARATION OF THE WASHED EXTRACT INTO (A) PURE ACRYLIC ACID AND (B) A READILY BOILING ETHYL ACETATE/WATER-AZEOTROPE COMPRISING EXTRACTING THE AQUEOUS ACRYLIC ACID-CONTAINING CRUDE ACID BY MEANS OF ABOUT 10 TO 15 PARTS BY WEIGHT ETHYL ACETATE, PER PART BY WEIGHT ACRYLIC ACID, AND SIMULTANEOUSLY WASHING THE RESULTING ORGANIC EXTRACT BY MEANS OF ABOUT 15 TO 25 PARTS OF WEIGHT WATER, PER PART BY WEIGHT ACRYLIC ACID.
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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.
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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.
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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
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