公开(公告)号：DE2144150A1

公开(公告)日：1973-03-15

申请号：DE2144150

申请日：1971-09-03

Applicant: BASF AG

Inventor： BRESSEL ULRICH DR ,  FUCHS WERNER DR ,  PLATZ ROLF DR

IPC: C07C5/44 ,  C07B20060101 ,  C07B31/00 ,  C07B35/04 ,  C07C1/00 ,  C07C5/48 ,  C07C5/56 ,  C07C11/00 ,  C07C15/00 ,  C07C15/44 ,  C07C67/00 ,  C07C69/00 ,  C07C69/54 ,  C07B3/00

公开(公告)号：DE2144148A1

公开(公告)日：1973-03-08

申请号：DE2144148

申请日：1971-09-03

Applicant: BASF AG

Inventor： BRESSEL ULRICH DR ,  FUCHS WERNER DR ,  PLATZ ROLF DR

IPC: C07C5/48 ,  C07B31/00 ,  C07B35/04 ,  C07C1/00 ,  C07C5/44 ,  C07C5/56 ,  C07C11/00 ,  C07C15/44 ,  C07C67/00 ,  C07C69/54 ,  C07B3/00

Abstract: Dehydrogenation of isobutyronitrile, ethylbenzene or methyl isobutyrate with iodine and oxygen into methacrylonitrile, styrene or methyl methacrylate at 400 DEG to 800 DEG C is carried out in a reaction chamber in which there are arranged, in the direction of flow of the bulk of the reactants introduced through a nozzle, coaxially from inside to outside first a mixing zone and then a circulation tube.

公开(公告)号：DE2263580A1

公开(公告)日：1974-07-04

申请号：DE2263580

申请日：1972-12-27

Applicant: BASF AG

Inventor： BRESSEL ULRICH DR ,  HOHENSCHUTZ HEINZ DR ,  SCHEIDMEIR WALTER DR

IPC: C07C53/46 ,  C07C51/00 ,  C07C51/62 ,  C07C67/00 ,  C07C53/36

Abstract: An improved process for the production of alpha -chlorocarboxylic acid chlorides by reaction of a carboxylic acid chloride with chlorine at elevated temperature, wherein the improvement consists in carrying out the reaction in the presence of sulfuric acid. alpha -chlorocarboxylic acid chlorides are suitable for the production of plant protection agents.

公开(公告)号：DE2144149A1

公开(公告)日：1973-03-15

申请号：DE2144149

申请日：1971-09-03

Applicant: BASF AG

Inventor： BRESSEL ULRICH DR ,  FUCHS WERNER DR ,  PLATZ ROLF DR

IPC: C07C5/56 ,  C07B3/00

Abstract: Dehydrogenation of volatile 2-20C organic cpds in the presence of halogen (source) and O2 at 400-800 degrees C, in which most of the reactants are introduced through nozzles at is not 5 m/s into (consecutive) mixing zone(s) along the reactor, is carried out in a reactor with the dia. of the first mixing zone 2-100 times the nozzle dia. and length 3-30 times its dia. the mixing zone being at the lower end (in the flow direction) of a circulation tube with dia. 0.1-0.95 times the inside dia of the reaction zone, as in DT 2144148. The reaction gases leaving the reaction zone are allowed to react to completion in an after-reactor contg. a fixed catalyst. This process is suitable for dehydrogenation of such cpds. as methyl isobutyrate to methyl methacrylate in high yield (78%) and conversion (41%) and also ethylbenzene and cumene. A MgSiO3/Co3O4 catalyst is pref.