公开(公告)号：DE19509883A1

公开(公告)日：1996-09-19

申请号：DE19509883

申请日：1995-03-17

Applicant: BASF AG

Inventor： HAUG JUERGEN DR

IPC: C08G63/88 ,  C08J3/18 ,  C08G85/00 ,  C08L27/06 ,  C08L31/04 ,  C08L67/02 ,  C08L75/04

Abstract: De-colouring (i.e. reducing the haze no.) of polymeric plasticisers is by high temp. treatment with oxygen-contg. gases, pref. air in an amt. of 1-160 (esp. 2-20) Nm /hr. per tonne plasticiser and pref. at 50-200 (esp. 80-150) deg C.

公开(公告)号：DE1793433A1

公开(公告)日：1971-07-01

申请号：DE1793433

申请日：1968-09-17

Applicant: BASF AG

Inventor： REUSS GUENTER DR ,  ENGELBACH HEINZ DR ,  HAUG JUERGEN DR

IPC: B01J23/90 ,  C07C5/48 ,  C07C5/18

Abstract: Process for manufacturing styrene, by catalytic dehydrogenation of ethylbenzene with oxygen or gases containing molecular oxygen in the presence of water vapor in a fluid bed at temperatures between 350 and 600º c, by the use of solid catalysts and regeneration of these catalysts by combustión, characterized by that the catalyst is regenerated by incompletely burning the carbonaceous deposits with oxygen or gases containing molecular oxygen only to such an extent that on average it contains during the transformation between 1 and 30% by weight, based on the catalyst, of said carbonaceous deposits. (Machine-translation by Google Translate, not legally binding)