公开(公告)号：DE2626968A1

公开(公告)日：1977-12-29

申请号：DE2626968

申请日：1976-06-16

Applicant: BASF AG

Inventor： ZUERN LUDWIG DIPL CHEM DR ,  FRIED MICHAEL DIPL CHEM DR ,  WEBER REINHOLD ING GRAD ,  STAHNECKER ERHARD DIPL CHEM DR

IPC: B29B9/06 ,  B29C44/34 ,  C08J9/16 ,  B29D27/00

公开(公告)号：DE3140447A1

公开(公告)日：1983-04-21

申请号：DE3140447

申请日：1981-10-12

Applicant: BASF AG

Inventor： HEBGEN WERNER DIPL PHYS DR ,  DANZ ECKEHARD DIPL CHEM DR ,  KROME GERD DIPL CHEM DR ,  STAHNECKER ERHARD DIPL CHEM DR

IPC: C07C17/38 ,  C07C17/34 ,  C07C19/045 ,  C07C21/06

Abstract: Process for work-up of unconverted 1,2-dichloroethane in the preparation of vinyl chloride in which first the hydrogen chloride and then the vinyl chloride is separated from the gas mixture from the cracking furnace, and the remaining liquid stream is then let down, leading to separation into gaseous and liquid portions. The gaseous portions are treated with chlorine and then separated by distillation. The liquid portions are passed directly into the 1,2-dichloroethane separation stage.

公开(公告)号：DE2640999A1

公开(公告)日：1978-03-16

申请号：DE2640999

申请日：1976-09-11

Applicant: BASF AG

Inventor： KEPPLER HANS GEORG DIPL ING DR ,  STAHNECKER ERHARD DIPL CHEM DR ,  MOELLER ROLF DIPL CHEM DR

IPC: C08F2/00 ,  C08F2/18 ,  C08F12/08 ,  C08J9/16 ,  C08J9/20

公开(公告)号：DE3140892A1

公开(公告)日：1983-04-28

申请号：DE3140892

申请日：1981-10-15

Applicant: BASF AG

Inventor： HEBGEN WERNER DIPL PHYS DR ,  DANZ ECKEHARD DIPL CHEM DR ,  KROME GERD DIPL CHEM DR ,  STAHNECKER ERHARD DIPL CHEM DR

IPC: C07C17/25 ,  C07C21/06 ,  C07C17/34

Abstract: A process for the preparation of vinyl chloride by vaporizing liquid 1,2-dichloroethane, thermally cracking the 1,2-dichloroethane and cooling the hot reaction mixture by means of cooled and condensed portions of the reaction mixture, wherein a defined amount of the 1,2-dichloroethane is taken off as liquid in or downstream of the vaporizer and mixed with a defined amount of the cooled liquid portion of the reaction mixture, the mixture is distilled and the constituents taken off the top of the distillation column are mixed with the liquid 1,2-dichloroethane upstream of the vaporizer while the constituents taken off the bottom of the distillation column are worked up by distillation.

公开(公告)号：DE2734607A1

公开(公告)日：1979-02-15

申请号：DE2734607

申请日：1977-08-01

Applicant: BASF AG

Inventor： GUHR UWE DIPL CHEM DR ,  MOELLER ROLF DIPL CHEM DR ,  STAHNECKER ERHARD DIPL CHEM DR ,  KNIESE WILHELM DIPL CHEM DR

IPC: C08F257/02 ,  C08J9/20 ,  C08F112/08

公开(公告)号：DE2626970A1

公开(公告)日：1977-12-29

申请号：DE2626970

申请日：1976-06-16

Applicant: BASF AG

Inventor： FRIED MICHAEL DIPL CHEM DR ,  ZUERN LUDWIG DIPL CHEM DR ,  STAHNECKER ERHARD DIPL CHEM DR ,  WEBER REINHOLD ING GRAD

IPC: B29C44/34 ,  C08J9/16 ,  B29D27/00

公开(公告)号：DE3024610A1

公开(公告)日：1982-01-28

申请号：DE3024610

申请日：1980-06-28

Applicant: BASF AG

Inventor： BIRNBAUM EBERHARD ING GRAD ,  KROME GERD DIPL CHEM DR ,  STAHNECKER ERHARD DIPL CHEM DR ,  DANZ ECKEHARD DIPL CHEM DR

IPC: B01J27/00 ,  C07B61/00 ,  C07C17/00 ,  C07C17/02 ,  C07C19/045 ,  C07C67/00

公开(公告)号：DE2638839A1

公开(公告)日：1978-03-02

申请号：DE2638839

申请日：1976-08-28

Applicant: BASF AG

Inventor： KEPPLER HANS GEORG DIPL ING DR ,  STAHNECKER ERHARD DIPL CHEM DR ,  MOELLER ROLF DIPL CHEM DR

IPC: C08F2/00 ,  C08F2/18 ,  C08F2/20 ,  C08F2/44 ,  C08F12/08 ,  C08J9/20

Abstract: Process for the manufacture of styrene polymers optionally containing blowing agent by polymerization in aqueous suspension using as the suspension stabilizer a calcium phosphate which after its manufacture by precipitation has been heated in aqueous dispersion for at least 2 hours at from 70 DEG to 130 DEG C. The styrene polymers may be used for the manufacture of foams.

公开(公告)号：DE2621448A1

公开(公告)日：1977-12-01

申请号：DE2621448

申请日：1976-05-14

Applicant: BASF AG

Inventor： GUHR UWE DIPL CHEM DR ,  STAHNECKER ERHARD DIPL CHEM DR ,  MOELLER ROLF DIPL CHEM DR ,  SCHICK RUPERT DIPL CHEM DR

IPC: C08J9/00 ,  C08J9/18 ,  C08J9/22 ,  C08L25/06 ,  C08J9/16

Abstract: Spherical, expandible styrene polymers are obtd. by suspending rod-shaped granules of styrene polymers, opt. mixed with 10-90 wt.% of other thermoplastic synthetics, in water contg. a suspending agent, and keeping the granules moving, pref. by stirring, while heating the suspension at above the softening point, for >30 mins. (1-5 hours) and at a press of is not >14 bars (7-10 bars). Granules of uniform size can be obtd. in any required amt. and dimension. Prods. of grain dia. 0.5-0.6 mm, suitable for prodn. of thin-walled goods, can be prepd. Moulds can be filled easily with the spherical granules. The process is esp. suitable for preparing light-fast, pigmented expandible styrene polymers. Opt. the initial granules may contain additives, but no blowing agent; the spherical particles are later impregnatred with the blowing agent.

公开(公告)号：DE2548524A1

公开(公告)日：1977-05-05

申请号：DE2548524

申请日：1975-10-30

Applicant: BASF AG

Inventor： KEPPLER HANS GEORG DIPL ING DR ,  STAHNECKER ERHARD DIPL CHEM DR ,  MOELLER ROLF DIPL CHEM DR

IPC: C08F2/00 ,  C08F2/18 ,  C08F2/20 ,  C08F26/00 ,  C08F26/10 ,  C08F271/02 ,  C08J9/20 ,  C08F12/08