公开(公告)号：HK87195A

公开(公告)日：1995-06-09

申请号：HK87195

申请日：1995-06-01

Applicant: HOECHST AG

Inventor： AIGNER RUDOLF ,  MUELLER GUENTER DR ,  MUELLER RAINER ,  REUNER HORST

IPC: C07C303/24 ,  C07C303/44 ,  C07C305/04 ,  C07C305/06 ,  C07C305/00 ,  C07C305/10 ,  C07C305/18 ,  C09K23/02 ,  C11D3/34

Abstract: A process for the preparation of sulfated alkanol oxethylates or alkylphenol oxethylates is described. After completion of the reaction with SO3, 0.1 to 0.5% by weight, relative to the alkanol oxethylates or alkylphenol oxethylates employed, of at least one of the following compounds: water, ethanol, 1-propanol, 2-propanol or n-heptane are admixed to the reaction mixture and liquid and gas are subsequently separated at a temperature of 20 DEG to 60 DEG C. The liquid is then neutralized with aqueous alkali as customary and leads to ether sulfate/water mixtures with considerably reduced contents of 1,4-dioxane which can either be used without further aftertreatment or with a considerably reduced outlay in terms of aftertreatment as personal hygiene agents and for various other purposes.

公开(公告)号：AT80383T

公开(公告)日：1992-09-15

申请号：AT89101596

申请日：1989-01-31

Applicant: HOECHST AG

Inventor： AIGNER RUDOLF ,  MUELLER GUENTHER DR ,  MUELLER RAINER ,  REUNER HORST

IPC: C07C305/00 ,  C07C303/24 ,  C07C303/44 ,  C07C305/04 ,  C07C305/06 ,  C07C305/10 ,  C07C305/18 ,  C09K23/02 ,  C11D3/34

公开(公告)号：NO169838B

公开(公告)日：1992-05-04

申请号：NO890428

申请日：1989-02-02

Applicant: HOECHST AG

Inventor： AIGNER RUDOLF ,  MUELLER GUENTHER ,  MUELLER RAINER ,  REUNER HORST

IPC: C07C303/24 ,  C07C303/44 ,  C07C305/00 ,  C07C305/04 ,  C07C305/06 ,  C07C305/10 ,  C07C305/18 ,  C09K23/02 ,  C11D3/34

Abstract: A process for the preparation of sulfated alkanol oxethylates or alkylphenol oxethylates is described. After completion of the reaction with SO3, 0.1 to 0.5% by weight, relative to the alkanol oxethylates or alkylphenol oxethylates employed, of at least one of the following compounds: water, ethanol, 1-propanol, 2-propanol or n-heptane are admixed to the reaction mixture and liquid and gas are subsequently separated at a temperature of 20 DEG to 60 DEG C. The liquid is then neutralized with aqueous alkali as customary and leads to ether sulfate/water mixtures with considerably reduced contents of 1,4-dioxane which can either be used without further aftertreatment or with a considerably reduced outlay in terms of aftertreatment as personal hygiene agents and for various other purposes.

公开(公告)号：DE3803110A1

公开(公告)日：1989-08-17

申请号：DE3803110

申请日：1988-02-03

Applicant: HOECHST AG

Inventor： AIGNER RUDOLF DIPL ING ,  MUELLER GUENTHER DR ,  MUELLER RAINER ,  REUNER HORST DIPL ING

IPC: C07C305/00 ,  C07C303/24 ,  C07C303/44 ,  C07C305/04 ,  C07C305/06 ,  C07C305/10 ,  C07C305/18 ,  C09K23/02 ,  C11D3/34

Abstract: A process for the preparation of sulfated alkanol oxethylates or alkylphenol oxethylates is described. After completion of the reaction with SO3, 0.1 to 0.5% by weight, relative to the alkanol oxethylates or alkylphenol oxethylates employed, of at least one of the following compounds: water, ethanol, 1-propanol, 2-propanol or n-heptane are admixed to the reaction mixture and liquid and gas are subsequently separated at a temperature of 20 DEG to 60 DEG C. The liquid is then neutralized with aqueous alkali as customary and leads to ether sulfate/water mixtures with considerably reduced contents of 1,4-dioxane which can either be used without further aftertreatment or with a considerably reduced outlay in terms of aftertreatment as personal hygiene agents and for various other purposes.

公开(公告)号：NO890428L

公开(公告)日：1989-08-04

申请号：NO890428

申请日：1989-02-02

Applicant: HOECHST AG

Inventor： AIGNER RUDOLF ,  MUELLER GUENTHER ,  MUELLER RAINER ,  REUNER HORST

IPC: C07C303/24 ,  C07C303/44 ,  C07C305/00 ,  C07C305/04 ,  C07C305/06 ,  C07C305/10 ,  C07C305/18 ,  C09K23/02 ,  C11D3/34 ,  C07C141/04 ,  C07C139/00

Abstract: A process for the preparation of sulfated alkanol oxethylates or alkylphenol oxethylates is described. After completion of the reaction with SO3, 0.1 to 0.5% by weight, relative to the alkanol oxethylates or alkylphenol oxethylates employed, of at least one of the following compounds: water, ethanol, 1-propanol, 2-propanol or n-heptane are admixed to the reaction mixture and liquid and gas are subsequently separated at a temperature of 20 DEG to 60 DEG C. The liquid is then neutralized with aqueous alkali as customary and leads to ether sulfate/water mixtures with considerably reduced contents of 1,4-dioxane which can either be used without further aftertreatment or with a considerably reduced outlay in terms of aftertreatment as personal hygiene agents and for various other purposes.

公开(公告)号：DK48689A

公开(公告)日：1989-08-04

申请号：DK48689

申请日：1989-02-02

Applicant: HOECHST AG

Inventor： AIGNER RUDOLF ,  MUELLER GUENTHER ,  MUELLER RAINER ,  REUNER HORST

IPC: C07C303/24 ,  C07C305/00 ,  C07C303/44 ,  C07C305/04 ,  C07C305/06 ,  C07C305/10 ,  C07C305/18 ,  C09K23/02 ,  C11D3/34 ,  C07C141/00

Abstract: A process for the preparation of sulfated alkanol oxethylates or alkylphenol oxethylates is described. After completion of the reaction with SO3, 0.1 to 0.5% by weight, relative to the alkanol oxethylates or alkylphenol oxethylates employed, of at least one of the following compounds: water, ethanol, 1-propanol, 2-propanol or n-heptane are admixed to the reaction mixture and liquid and gas are subsequently separated at a temperature of 20 DEG to 60 DEG C. The liquid is then neutralized with aqueous alkali as customary and leads to ether sulfate/water mixtures with considerably reduced contents of 1,4-dioxane which can either be used without further aftertreatment or with a considerably reduced outlay in terms of aftertreatment as personal hygiene agents and for various other purposes.

公开(公告)号：FI88712B

公开(公告)日：1993-03-15

申请号：FI890483

申请日：1989-02-01

Applicant: HOECHST AG

Inventor： AIGNER RUDOLF ,  MUELLER GUENTHER ,  MUELLER RAINER ,  REUNER HORST

IPC: C07C303/24 ,  C07C303/44 ,  C07C305/04 ,  C07C305/06 ,  C07C305/00 ,  C07C305/10 ,  C07C305/18 ,  C09K23/02 ,  C11D3/34 ,  C07B45/00

Abstract: A process for the preparation of sulfated alkanol oxethylates or alkylphenol oxethylates is described. After completion of the reaction with SO3, 0.1 to 0.5% by weight, relative to the alkanol oxethylates or alkylphenol oxethylates employed, of at least one of the following compounds: water, ethanol, 1-propanol, 2-propanol or n-heptane are admixed to the reaction mixture and liquid and gas are subsequently separated at a temperature of 20 DEG to 60 DEG C. The liquid is then neutralized with aqueous alkali as customary and leads to ether sulfate/water mixtures with considerably reduced contents of 1,4-dioxane which can either be used without further aftertreatment or with a considerably reduced outlay in terms of aftertreatment as personal hygiene agents and for various other purposes.

公开(公告)号：NO169838C

公开(公告)日：1992-08-12

申请号：NO890428

申请日：1989-02-02

Applicant: HOECHST AG

Inventor： AIGNER RUDOLF ,  MUELLER GUENTHER ,  MUELLER RAINER ,  REUNER HORST

IPC: C07C303/24 ,  C07C303/44 ,  C07C305/00 ,  C07C305/04 ,  C07C305/06 ,  C07C305/10 ,  C07C305/18 ,  C09K23/02 ,  C11D3/34

Abstract: A process for the preparation of sulfated alkanol oxethylates or alkylphenol oxethylates is described. After completion of the reaction with SO3, 0.1 to 0.5% by weight, relative to the alkanol oxethylates or alkylphenol oxethylates employed, of at least one of the following compounds: water, ethanol, 1-propanol, 2-propanol or n-heptane are admixed to the reaction mixture and liquid and gas are subsequently separated at a temperature of 20 DEG to 60 DEG C. The liquid is then neutralized with aqueous alkali as customary and leads to ether sulfate/water mixtures with considerably reduced contents of 1,4-dioxane which can either be used without further aftertreatment or with a considerably reduced outlay in terms of aftertreatment as personal hygiene agents and for various other purposes.

公开(公告)号：DE4211190A1

公开(公告)日：1993-10-07

申请号：DE4211190

申请日：1992-04-03

Applicant: HOECHST AG

Inventor： AIGNER RUDOLF DIPL ING ,  MAIER GUILLERMO DIPL ING ,  MUELLER RAINER ,  SEITZ HUBERT DR

IPC: C07C227/08 ,  C07C229/12 ,  C07C229/16 ,  C07C231/12 ,  C07C233/36 ,  C11D1/90 ,  C07C229/06

Abstract: A process is described for the preparation of aqueous solutions of betaines of the formula (* CHEMICAL STRUCTURE *) in which: R1 is an alkyl radical having 6 to 22 carbon atoms or is a radical of the formula R'CONH(CH2)z-, in which R' has the meaning of R1 and z is 2, 3 or 4, R2 is an alkyl radical having 1 to 4 carbon atoms or is a radical of the formula -(CH2)m-OH, in which m is 1, 2 or 3, R3 is an alkyl radical having 1 to 4 carbon atoms or is a radical of said formula -(CH2)m-OH and y is 1, 2 or 3. The aqueous betaine solutions are prepared by quaternization of the corresponding tertiary amines with an (omega)-halocarboxylic acid and with an alkali metal hydroxide in the aqueous phase. The quaternization is carried out continuously in two or three stirred tanks arranged in a cascade, defined process characteristics being maintained in each tank. Using the novel process, aqueous betaine solutions are obtained in high yield and purity in a simple manner.

公开(公告)号：CA1321599C

公开(公告)日：1993-08-24

申请号：CA589850

申请日：1989-02-02

Applicant: HOECHST AG

Inventor： AIGNER RUDOLF ,  MUELLER GUENTHER ,  MUELLER RAINER ,  REUNER HORST

IPC: C07C305/00 ,  C07C303/24 ,  C07C303/44 ,  C07C305/04 ,  C07C305/06 ,  C07C305/10 ,  C07C305/18 ,  C09K23/02 ,  C11D3/34

Abstract: HOE 88/F 902 of the disclosure Process for the preparation of sulfated alkanol oxethylates or alkylphenol oxethylates having a lowered content of 1,4-dioxane A process for the preparation of sulfated alkanol oxethylates or alkylphenol oxethylates is described. After completion of the reaction with SO3, 0.1 to 0.5 % by weight, relative to the alkanol oxethylates or alkylphenol oxethylates employed, of at least one of the following compounds: water, ethanol, 1-propanol, 2-propanol or n-heptane are admixed to the reaction mixture and liquid and gas are subsequently separated at a temperature of 20 to 60.degree.C. The liquid is then neutralized with aqueous alkali as customary and leads to ether sulfate/water mixtures with considerably reduced contents of 1,4-dioxane which can either be used without further aftertreatment or with a considerably reduced outlay in terms of aftertreatment as personal hygiene agents and for various other purposes.