公开(公告)号：CA2078098A1

公开(公告)日：1993-03-15

申请号：CA2078098

申请日：1992-09-11

Applicant: HOECHST AG

Inventor： DEIRINGER GUENTHER ,  EDELMANN GERHARD ,  RAUXLOH BERNHARD

IPC: B03B1/04 ,  B03D1/002 ,  B03D1/008 ,  B03D1/02 ,  C08J11/06

Abstract: HOE 91/F 288 of the disclosure Process for the separation of plastics by flotation The invention relates to a process for separating off polyester plastics from a mixture of polyester, polyvinyl chloride and, if present, other plastics, which comprises treating the mixture of plastics with an aqueous alkaline solution and separating off the polyester from polyvinyl chloride and, if present, other plastics by flotation.

公开(公告)号：AU7665974A

公开(公告)日：1976-06-24

申请号：AU7665974

申请日：1974-12-19

Applicant: HOECHST AG

Inventor： MILLAUER HANS ,  EDELMANN GERHARD

IPC: B03D1/00 ,  C07C20060101 ,  C07D20060101 ,  C07C155/02

公开(公告)号：CA2166153A1

公开(公告)日：1996-06-29

申请号：CA2166153

申请日：1995-12-27

Applicant: HOECHST AG

Inventor： BIGMORE ROBERT ,  EDELMANN GERHARD ,  KREMER GERNOT ,  GLEMBOTSKY ALEXANDER

IPC: B03D1/012 ,  C07C333/08 ,  B03D1/02

Abstract: The present invention relates to a process for separating molybdenum minerals and copper minerals by flotation using a depressant for copper sulfide, which comprises using one or more thiocarbamic esters of the formula I (I) in which R1 is an aliphatic hydrocarbon radical which is unsub stituted or substituted by hydrophilic groups and has 1 to 6 carbon atoms and R2 is an aliphatic hydrocarbon radical which is substi tuted by hydrophilic groups and has 1 to 6 carbon atoms or is a phenyl radical which is substituted by hydrophilic groups, as depressants.

公开(公告)号：CA1104906A

公开(公告)日：1981-07-14

申请号：CA275344

申请日：1977-04-01

Applicant: HOECHST AG

Inventor： EDELMANN GERHARD ,  MUELLER HEINZ ,  ROSENSTOCK FRIEDRICH

IPC: B01J19/00 ,  B01D21/01 ,  B01D37/03 ,  B01J20/22 ,  C02B1/20

Abstract: of the disclosure: An improved process for concentrating and dewatering of mineral suspensions by filtration which comprises adding to the suspension prior to the filtration as filter aid a composition containing a sulfosuccinate of the formula I wherein R1 and R2 each are an alkyl radical having about 6 to 12 carbon atoms and Me is an alkali metal, and an aliphatic amine having at least 5 carbon atoms.

公开(公告)号：AU2386477A

公开(公告)日：1978-10-05

申请号：AU2386477

申请日：1977-04-01

Applicant: HOECHST AG

Inventor： EDELMANN GERHARD ,  MULLER HEINZ ,  ROSENSTOCK FRIEDRICH

IPC: B01J19/00 ,  B01D21/01 ,  B01D37/03 ,  B01J20/22 ,  B01D37/02 ,  B01D19/04

Abstract: An improved process for concentrating and dewatering of mineral suspensions by filtration which comprises adding to the suspension prior to the filtration as filter aid a composition containing a sulfosuccinate of the formula I wherein R1 and R2 each are an alkyl radical having about 6 to 12 carbon atoms and Me is an alkali metal, and an aliphatic amine having at least 5 carbon atoms.