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

IPC: B01J23/89 ,  B01J27/192 ,  C07C45/35 ,  C07C51/25 ,  D01D10/04 ,  B01J11/82

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。