公开(公告)号：DE3411728A1

公开(公告)日：1985-10-10

申请号：DE3411728

申请日：1984-03-30

Applicant: BASF AG

Inventor： GOESELE WALTER DR ,  KULLE HEINZ

IPC: B04B1/20 ,  B04B11/02 ,  B04B15/00 ,  C02F11/12

公开(公告)号：DE4030912A1

公开(公告)日：1992-04-02

申请号：DE4030912

申请日：1990-09-29

Applicant: BASF AG

Inventor： HUBER GUENTHER ,  HABERMANN WOLFGANG ,  GOESELE WALTER DR ,  KLASSEN ROLF

IPC: B01D35/06

Abstract: A process is described for the separation of metal ions from process water and waste water by the use of an electrically conducting filter aid layer polarised as a cathode, the potential of which is at least 50 mV more negative than the redox potential of the metal ions to be separated, the filter aid layer being permeated by the metal ion-containing water and being cyclically regenerated at intervals of 2 to 180 minutes by means of backwash, separation and flooding processes.

公开(公告)号：DE3605347A1

公开(公告)日：1986-08-28

申请号：DE3605347

申请日：1986-02-20

Applicant: BASF AG

Inventor： GOESELE WALTER DR ,  FAULHABER FRIEDR RICHARD DR ,  TROMMELSCHLAEGER GEROLD DR

IPC: C02F1/38 ,  C02F1/52 ,  G01N15/04 ,  G01N21/59 ,  B04B1/20 ,  B04B15/00 ,  C02F11/12

Abstract: Method for determining the flocculation conditions for separating off solids from sludges in decanting centrifuges, a sludge sample being introduced together with a flocculant solution into the rotating rotor of a laboratory centrifuge and the light absorption of the flocculated sludge sample being measured at more than one position of the rotor radius.

公开(公告)号：DE59009375D1

公开(公告)日：1995-08-10

申请号：DE59009375

申请日：1990-12-22

Applicant: BASF AG

Inventor： FAUST TILLMANN DR ,  MEYER JOACHIM DR ,  WELLINGHOFF GEORG DR ,  GOESELE WALTER DR ,  MARTIN CHRISTOPH DR ,  GRIMMER JOHANNES

IPC: C07D475/14 ,  C12P17/18 ,  C12P25/00

Abstract: Riboflavin is removed from fermentation suspensions by them being heated at from 50 DEG to 90 DEG C. for from 1 to 3 hours, than cooled to from 0 DEG to 30 DEG C. over a period of from 1 to 5 hours, and subsequently being centrifuged to give a sediment fraction and liquid fraction in such a way that the sediment fraction contains predominantly riboflavin crystals as solid, and the liquid fraction contains virtually no crystalline riboflavin, and, where appropriate, resuspending the sediment fraction in from 0.5 to 2 parts by volume of water per part by volume of sediment fraction and repeating procedure c.

公开(公告)号：DE3063662D1

公开(公告)日：1983-07-14

申请号：DE3063662

申请日：1980-05-05

Applicant: BASF AG

Inventor： SANDER BRUNO DR ,  HESS KLAUS DR ,  LINTZ PETER ,  GOESELE WALTER DR

IPC: B01D25/00 ,  B01D37/00 ,  B01D37/03 ,  C02F11/12

Abstract: A process for dewatering sewage sludges, the dewatering characteristics of which have been improved by adding an organic flocculant, on a chamber filter press, wherein the greater part of the water in the flocculated sludges is removed by gravity filtration in a process step upstream of the chamber filter press, without application of a pressure difference, and the actual pressure filtration, on the chamber filter press, is only then carried out. In principle, commercial products can be used as the organic flocculant. These are water-soluble, macromolecular compounds which have been obtained by polymerization or copolymerization of acrylamide, acrylic cid and/or their salts, or of esters of acrylic acid or methacrylic acid with specifically modified alcohol components.

公开(公告)号：DE59105104D1

公开(公告)日：1995-05-11

申请号：DE59105104

申请日：1991-09-19

Applicant: BASF AG

Inventor： HUBER GUENTHER ,  HABERMAN WOLFGANG ,  GOESELE WALTER DR ,  KLASSEN ROLF

IPC: B01D35/06

Abstract: A process is described for the separation of metal ions from process water and waste water by the use of an electrically conducting filter aid layer polarised as a cathode, the potential of which is at least 50 mV more negative than the redox potential of the metal ions to be separated, the filter aid layer being permeated by the metal ion-containing water and being cyclically regenerated at intervals of 2 to 180 minutes by means of backwash, separation and flooding processes.

公开(公告)号：DE4002066A1

公开(公告)日：1991-08-01

申请号：DE4002066

申请日：1990-01-25

Applicant: BASF AG

Inventor： FAUST TILLMANN DR ,  MEYER JOACHIM DR ,  WELLINGHOFF GEORG DR ,  GOESELE WALTER DR ,  MARTIN CHRISTOPH DR ,  GRIMMER JOHANNES

IPC: C07D475/14 ,  C12P17/18 ,  C12P25/00

Abstract: Riboflavin is removed from fermentation suspensions by them being heated at from 50 DEG to 90 DEG C. for from 1 to 3 hours, than cooled to from 0 DEG to 30 DEG C. over a period of from 1 to 5 hours, and subsequently being centrifuged to give a sediment fraction and liquid fraction in such a way that the sediment fraction contains predominantly riboflavin crystals as solid, and the liquid fraction contains virtually no crystalline riboflavin, and, where appropriate, resuspending the sediment fraction in from 0.5 to 2 parts by volume of water per part by volume of sediment fraction and repeating procedure c.

公开(公告)号：DE3641781A1

公开(公告)日：1987-09-03

申请号：DE3641781

申请日：1986-12-06

Applicant: BASF AG

Inventor： GOESELE WALTER DR ,  PETERS KARL-CLEMENS DR ,  GOHL HELMUT ,  KLANIG WOLFGANG

IPC: B01D19/00 ,  B04C5/081 ,  B04C5/14

Abstract: Hydrocyclone for degassing liquids, consisting of a cylindrical casing, a feedpipe, a discharge pipe and a connection for an apparatus for producing a vacuum, characterised in that the distribution pipe is arranged tangentially on the outer casing.