公开(公告)号：DE2631834A1

公开(公告)日：1978-01-19

申请号：DE2631834

申请日：1976-07-15

Applicant: BASF AG

Inventor： BECKER ROLF DIPL ING DR ,  BORHO KLAUS DIPL ING DR ,  BUECHNER OSKAR DIPL CHEM DR ,  GROPPER HANS DIPL CHEM DR ,  HARTIG ULRICH DIPL CHEM DR

IPC: B01J3/00 ,  C08F2/00 ,  C08F2/34 ,  C08F10/00 ,  C08F10/02

Abstract: The invention relates to a process for rapidly letting-down the pressure in continuous high pressure polymerization systems for the polymerization of ethylene. In this process, the let-down hot reaction mixture is passed into an expansion vessel in such a way that the jet of let-down hot reaction mixture issuing from the let-down line is led into the partially water-filled expansion vessel at an angle of from 0 DEG to 45 DEG to the water surface, so that the jet does not enter below the surface but must touch or strike it. The method described makes it possible to let the mixture down partially and thus to slow down the decomposition in the case of explosive decomposition reactions occurring in the polymerization system.

公开(公告)号：DE2450205A1

公开(公告)日：1976-05-06

申请号：DE2450205

申请日：1974-10-23

Applicant: BASF AG

Inventor： HEMMER GERD ING GRAD ,  HESS KLAUS DR ,  BECKER ROLF DIPL ING DR ,  LIEBHABER KLAUS ING GRAD

IPC: F23G7/08 ,  F23D13/20

Abstract: A process for the quiet and smokeless flaring of process gases by sharp separation of the air intake and combustion steps. Compared with conventional off-gas flares, steam consumption is reduced and blow-back of the flame into the mixing tube is avoided by using a combined mixing and combustion chamber. This extends the operating range and life of flare facilities.