公开(公告)号：DE1923446A1

公开(公告)日：1970-11-12

申请号：DE1923446

申请日：1969-05-08

Applicant: BASF AG

Inventor： ROLF PLATZ DR ,  WERNER FUCHS DR ,  OTTO NAGEL DR-ING

IPC: B01F3/04 ,  B01F3/08 ,  B01F5/02 ,  C02F3/12 ,  C02F3/22 ,  C12M1/08 ,  C12B1/14

Abstract: 1303163 Aerating liquids BADISCHE ANILIN- & SODA-FABRIK AG 7 May 1970 [8 May 1969] 22051/70 Heading B1C Liquid is aerated by means of an ejector which dips into the liquid. The ejector has a central tube 3 through which liquid flows, e.g. from a pump, and induces a flow of air through a surrounding tube 4. The air and liquid pass through a mixing tube 5 completely immersed in the liquid, inducing through the tube 5 the circulation of the liquid in the container. The liquid may be a lake or river, or be in a container 1 as shown. The process may be used to speed up fermentations, or to aerate sewage. The liquid flows through the tube 3 at between 5 and 100 m/sec., the diameter of the mixing tube 5 is 2-20 times the diameter of the tube 3, and the length of the mixing tube 5 is 2-30 times the diameter of the mixing tube.

公开(公告)号：DE1932420A1

公开(公告)日：1971-01-14

申请号：DE1932420

申请日：1969-06-26

Applicant: BASF AG

Inventor： WERNER FUCHS DR ,  FRANZ MERGER DR

IPC: A01D23/00 ,  A01D23/02 ,  C07C67/48 ,  C07C69/675 ,  C08G63/06 ,  C07C67/06

Abstract: 1304956 2,2 - Dimethyl - 1,3 - propanediol monohydroxy pivalic ester BADISCHE ANILIN- & SODA-FABRIK AG 25 June 1970 [26 June 1939] 30826/70 Heading C2C 2,2 - Dimethyl - 1,3 - propanediol monohydroxypivalic ester is purified by distilling the crude at a temperature of above 100‹ C., with sulphuric or sulphonic acid. The distillation may be continuous with from 0À05 to 5% molar proportion of the acid.

公开(公告)号：DE1800506A1

公开(公告)日：1970-05-21

申请号：DE1800506

申请日：1968-10-02

Applicant: BASF AG

Inventor： FRANZ MERGER DR ,  WERNER FUCHS DR

IPC: C07C31/20 ,  C07C29/14