公开(公告)号：CH479684A

公开(公告)日：1969-10-15

申请号：CH1040767

申请日：1967-07-21

Applicant: BASF AG

Inventor： HOVEMANN FRIEDRICH DR ,  NOTTES GUENTHER DR

IPC: C10L1/00 ,  C09B67/00

公开(公告)号：DE3433925A1

公开(公告)日：1986-03-27

申请号：DE3433925

申请日：1984-09-15

Applicant: BASF AG

Inventor： HORACEK HEINRICH DR ,  HOVEMANN FRIEDRICH DR ,  BURKERT HANS DR

IPC: C02F1/54 ,  C02F1/56

Abstract: The invention relates to water-soluble salts of copolymers based on ethylenically unsaturated carboxylic acids, possibly ethylenically unsaturated monomers, possibly acrylates and possibly acrylonitrile for use as flocculants for clarifying waste waters and process liquids and a process for clarifying waste waters and process liquids.

公开(公告)号：DE3162987D1

公开(公告)日：1984-05-10

申请号：DE3162987

申请日：1981-10-24

Applicant: BASF AG

Inventor： SANDER BRUNO DR ,  HOVEMANN FRIEDRICH DR ,  SCHERLING KURT

IPC: B01D17/00 ,  B01D37/00 ,  C02F11/12 ,  C02F11/14 ,  C10G33/00 ,  C10G33/04

Abstract: A process for dewatering petroleum-containing sludges by a two-stage method using finely divided additives and organic flocculants, wherein (a) finely divided additives, such as ash, coal, sand or mixtures of these, in a free-flowing form or as an aqueous suspension, are homogeneously dispersed in the petroleum-containing sludge, in an amount such that the total solids content of the resulting mixture is from 10 to 30% by weight, especially from 12 to 20% by weight, (b) this sludge mixture is treated with an aqueous solution of an organic flocculant, preferably of anionic nature, (c) the greater part of the sludge water is removed by gravity filtration, (d) the pre-dewatered sludge mixture is treated with an aqueous solution of aluminum salts or trivalent iron salts and (e) this mixture is substantially dewatered by pressure filtration, in the course of which the greater part of the petroleum present is also removed.

公开(公告)号：CH498190A

公开(公告)日：1970-10-31

申请号：CH361468

申请日：1968-03-12

Applicant: BASF AG

Inventor： HOVEMANN FRIEDRICH DR ,  NOTTES GUENTHER DR

IPC: C10L1/22

公开(公告)号：AT269800B

公开(公告)日：1969-04-10

申请号：AT847566

申请日：1966-09-08

Applicant: BASF AG

Inventor： FUCHS FRIEDRICH DR ,  HOVEMANN FRIEDRICH DR ,  SCHENK WALTER DR

IPC: C11D1/28 ,  C11D1/52 ,  C11D3/02 ,  C11D3/20 ,  D06L3/02 ,  D06L4/12 ,  D06P1/62 ,  D06P1/649 ,  D06P1/653

公开(公告)号：DE3573928D1

公开(公告)日：1989-11-30

申请号：DE3573928

申请日：1985-07-10

Applicant: BASF AG

Inventor： OPPENLAENDER KNUT DR ,  STORK KARL DR ,  HOVEMANN FRIEDRICH DR ,  SCHWARTZ ERICH DR

IPC: B65G53/30 ,  B65G53/40 ,  C09K23/42 ,  C10L1/32 ,  C10L10/18

Abstract: Pumpable free-flowing aqueous coal dispersions containing a special non-ionic dispersant which is a polyalkylene oxide bisphenol A derivative, and the use of the said dispersant in coal/water dispersions.

公开(公告)号：DE3426395A1

公开(公告)日：1986-01-23

申请号：DE3426395

申请日：1984-07-18

Applicant: BASF AG

Inventor： OPPENLAENDER KNUT DR ,  STORK KARL DR ,  HOVEMANN FRIEDRICH DR ,  SCHWARTZ ERICH DR

IPC: B65G53/30 ,  B65G53/40 ,  C09K23/42 ,  C10L1/32 ,  C10L10/18 ,  B01F17/42

Abstract: Pumpable free-flowing aqueous coal dispersions containing a special non-ionic dispersant which is a polyalkylene oxide bisphenol A derivative, and the use of the said dispersant in coal/water dispersions.

公开(公告)号：DE3063407D1

公开(公告)日：1983-07-07

申请号：DE3063407

申请日：1980-02-20

Applicant: BASF AG

Inventor： OPPENLAENDER KNUT DR ,  MERGER FRANZ DR ,  STRICKLER RAINER DR ,  HOVEMANN FRIEDRICH DR ,  SCHMIDT HELMUT ,  STARKE KLAUS ,  STORK KARL DR ,  VODRAZKA WOLFGANG DR

IPC: C10L1/02 ,  F02B3/06

公开(公告)号：DE2307377A1

公开(公告)日：1974-08-22

申请号：DE2307377

申请日：1973-02-15

Applicant: BASF AG

Inventor： NIEMEYER JUERGEN DR ,  KORPIUN OLAF DR ,  HOVEMANN FRIEDRICH DR ,  OPPENLAENDER KNUT DR

IPC: C11D1/00 ,  C11D1/18 ,  D21D20060101 ,  C07C143/74

公开(公告)号：CH460739A

公开(公告)日：1968-08-15

申请号：CH1547166

申请日：1966-10-25

Applicant: BASF AG

Inventor： BUCHERT HERMANN DR ,  HOVEMANN FRIEDRICH DR ,  NOTTES GUENTHER DR ,  PLOETZ ERNST DR

IPC: C08K5/20 ,  C10L1/22 ,  C23F11/14