公开(公告)号：US3671566A

公开(公告)日：1972-06-20

申请号：US3671566D

申请日：1970-03-30

Applicant: BASF AG

Inventor： DECKER MARTIN ,  SCHMIDT JOSEPH ,  HOFFMANN HERWIG ,  PISTOR HANS JOACHIM

IPC: C07C20060101 ,  C07C121/10

CPC classification number: C07C255/00

Abstract: Production of adiponitrile by introducing adipic acid in solid powder form or in liquid form and simultaneously introducing ammonia into a fluidized bed of a usual catalyst at a temperature of from 250* to 420*C and recovering the adiponitrile from the reaction gases by fractional distillation wherein there is added to the reaction gas before entry into the distillation column sufficient water to make the molar ratio of water vapor to ammonia 0.8 to 1.5 in the mixture entering the column. Adiponitrile is an intermediate in the manufacture of synthetic fibers of, for example, nylon 6.6.

Abstract translation: 通过以固体粉末形式或液体形式引入己二酸生产己二腈，同时在250-420℃的温度下将氨引入常规催化剂的流化床中，并通过分馏从反应气中回收己二腈，其中 在进入蒸馏塔之前，将反应气体加入到足够的水中以使进入塔的混合物中水蒸气与氨的摩尔比为0.8至1.5。 己二腈是制造例如尼龙6.6的合成纤维的中间体。