公开(公告)号：FR1508518A

公开(公告)日：1968-01-05

申请号：FR91412

申请日：1967-01-17

Applicant: BASF AG

Inventor： MEIER ADOLF ,  KLINGENSPOR HELMUT ,  RAICHLE LUDWIG

IPC: B01D3/42 ,  G01N1/20 ,  G05D11/00 ,  G05D11/02

公开(公告)号：GB917916A

公开(公告)日：1963-02-06

申请号：GB3037861

申请日：1961-08-23

Applicant: BASF AG

Inventor： MEIER ADOLF ,  RAICHLE LUDWIG

IPC: B01D9/00

Abstract: In the fractional crystallization process such as are described in Figs. 6-8 (not shown) wherein the crystals are separated out in each stage by means of a trough similar to that of Fig. 1. The crystals are melted and at least partially returned to a preceding stage. The fused mixture is contained in trough 1 while internally cooled disc becomes coated with crystal layer 4 which is melted in device 5 and the purified melt is withdrawn through pipe 6. The heating and cooling of the disc may be by electric means or by using hollow constructions with heat exchange liquids.

公开(公告)号：FR1259176A

公开(公告)日：1961-04-21

申请号：FR828674

申请日：1960-05-31

Applicant: BASF AG

Inventor： MEIER ADOLF ,  SEIBERT HANS

IPC: B05D1/04 ,  B05D7/00 ,  B05D7/04 ,  B29D7/01

公开(公告)号：FR1235356A

公开(公告)日：1960-07-08

申请号：FR794338

申请日：1959-05-11

Applicant: BASF AG

Inventor： MEIER ADOLF

IPC: B01D3/00