公开(公告)号：FI88712C

公开(公告)日：1993-06-28

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 ,  C07C305/00 ,  C07C305/06 ,  C07C305/10 ,  C07C305/18 ,  C09K23/02 ,  C11D3/34 ,  C07B45/00

公开(公告)号：FI890483A

公开(公告)日：1989-08-04

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 ,  C07C305/00 ,  C07C303/44 ,  C07C305/04 ,  C07C305/06 ,  C07C305/10 ,  C07C305/18 ,  C09K23/02 ,  C11D3/34 ,  C07C

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：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.

公开(公告)号：DK164104B

公开(公告)日：1992-05-11

申请号：DK383686

申请日：1986-08-12

Applicant: HOECHST AG

Inventor： AIGNER RUDOLF ,  BLASCHKE GUENTER ,  MUELLER GUENTHER

IPC: C07C209/00 ,  C07C67/00 ,  C07C209/12 ,  C07C211/21 ,  C07C211/63 ,  C07C239/12

公开(公告)号：BR9001109A

公开(公告)日：1991-03-05

申请号：BR9001109

申请日：1990-03-08

Applicant: HOECHST AG

Inventor： AIGNER RUDOLF ,  MUELLER GUENTHER

IPC: C07C209/12 ,  C07C209/84 ,  C07C211/63

公开(公告)号：ZA8900782B

公开(公告)日：1989-09-27

申请号：ZA8900782

申请日：1989-02-01

Applicant: HOECHST AG

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

IPC: C07C305/00 ,  B01F17/02 ,  C07C303/24 ,  C07C305/10 ,  C07C305/18 ,  C11D3/34 ,  C07C ,  B01F ,  C11D

CPC classification number: C07C303/24 ,  C07C305/18 ,  C07C305/10

公开(公告)号：FI890483A0

公开(公告)日：1989-02-01

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 ,  C07C305/00 ,  C07C303/44 ,  C07C305/04 ,  C07C305/06 ,  C07C305/10 ,  C07C305/18 ,  C09K23/02 ,  C11D3/34 ,  C07C

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：DK383686D0

公开(公告)日：1986-08-12

申请号：DK383686

申请日：1986-08-12

Applicant: HOECHST AG

Inventor： AIGNER RUDOLF ,  BLASCHKE GUENTER ,  MUELLER GUENTHER

IPC: C07C209/00 ,  C07C67/00 ,  C07C209/12 ,  C07C211/21 ,  C07C211/63 ,  C07C239/12 ,  C07C

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.