Patent ID: 9216395
Filing Date: 2015-12-22
Classification: B01J,C07C

Abstract:
1. A tube bundle reactor comprising at least one catalyst tube which has been charged by a process for charging a longitudinal section of a catalyst tube with a uniform fixed catalyst bed section whose active composition is at least one multielement oxide which comprises a) the elements Mo, Fe and Bi, or b) the elements Mo and V, or c) the element V and additionally P and/or Sb, on an oxidic support body, and wherein the uniform fixed catalyst bed section consists of a single type S where the median of the longest dimensions L from 40 to 70% of the total number of geometric shaped bodies belonging to S at least 10% of the total number of the geometric shaped bodies belonging to S at least 10% of the total number of the geometric shaped bodies belonging to S less than 5% of the total number of geometric shaped bodies belonging to S less than 5% of the total number of the geometric shaped bodies belonging to S is satisfied.