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1. 发明专利

DE4122530A1 未知
公开(公告)号：DE4122530A1
公开(公告)日：1993-01-14
申请号：DE4122530
申请日：1991-07-08
申请人： HENKEL KGAA
发明人： DEMMERING GUENTHER DR , PELZER CHRISTIAN DR , FRIESENHAGEN LOTHAR
IPC分类号： C07C69/30 , B01J31/04 , C07C67/03 , C11C3/04 , C11C3/10
摘要： The invention concerns the transesterification of fatty-acid glycerides with lower aliphatic alcohols, the reaction being carried out in the presence of fatty acids of the formula (II): R -COOH, in which R can be an aliphatic hydrocarbon group with 11 to 17 carbon atoms and 0, 1 or 2 double bonds. The products contain only small amounts of chemically bound glycerin and have a low acid number. It is unnecessary to remove or neutralize the catalyst since the fatty acids are also present as esters after the transesterification reaction.

2. 发明专利

DE3582022D1 未知
公开(公告)号：DE3582022D1
公开(公告)日：1991-04-11
申请号：DE3582022
申请日：1985-11-30
申请人： HENKEL KGAA
发明人： LEPPER HERBERT DR , FRIESENHAGEN LOTHAR
IPC分类号： C07C67/03 , C07C67/02 , C07C67/58 , C07C69/24 , C07C69/52 , C07C69/58 , C11B3/02 , C11C3/00 , C11C3/04
摘要： Fatty acid alkyl esters are produced by catalytic transesterification of natural fats and oils containing free fatty acids. In a preliminary esterifying step, the free fatty acids present are reacted with a C1-C4 alkanol (e.g., methanol) in the presence of an acidic esterification catalyst, at a temperature of about 50 DEG to 120 DEG C. and at substantially atmospheric pressure. The resulting reaction mixture is allowed to separate into two phases: (1) an alcohol phase containing the acidic esterification catalyst and part of the water of reaction and (2) an oil phase. These phases separately recovered. The oil phase is then extracted with an immiscible extractant, preferably comprising a mixture of glycerol and methanol, to remove residual water of reaction. In the final step the extracted oil phase is transesterified with a C1-C4 alkanol, e.g. methanol, in the presence of an aklali catalyst and at substantially atmospheric pressure.

3. 发明专利

CA1261870A PROCESS FOR THE PRODUCTION OF FATTY ACID ALKYL ESTERS 未知
公开(公告)号：CA1261870A
公开(公告)日：1989-09-26
申请号：CA497012
申请日：1985-12-06
申请人： HENKEL KGAA
发明人： LEPPER HERBERT , FRIESENHAGEN LOTHAR
IPC分类号： C07C67/03 , C07C67/02 , C07C67/58 , C07C69/24 , C07C69/52 , C07C69/58 , C11B3/02 , C11C3/00 , C11C3/04
摘要： A PROCESS FOR THE PRODUCTION OF FATTY ALKYL ESTERS Fatty acid alkyl esters are produced by catalytic transesterification of natural fats and oils containing free fatty acids. In a preliminary esterifying step, the free fatty acids present are reacted with a C1-C4 alkanol (e.g., methanol) in the presence of an acidic esterification catalyst, at a temperature of about 50 to 120.degree.C and at substantially atmospheric pressure. The resulting reaction mixture is allowed to separate into two phases: (1) an alcohol phase containing the acidic esterification catalyst and part of the water of reaction and (2) an oil phase. These phases separately recovered. The oil phase is then extracted with an immiscible extractant, preferably comprising a mixture of glycerol and methanol, to remove residual water of reaction. In the final step the extracted oil phase is transesterified with a C1-C4 alkanol, e.g. methanol, in the presence of an aklali catalyst and at substantially atmospheric pressure.

4. 发明专利

BR8402569A 未知
公开(公告)号：BR8402569A
公开(公告)日：1985-04-23
申请号：BR8402569
申请日：1984-05-29
申请人： HENKEL KGAA
发明人： LEPPER HERBERT , FRIESENHAGEN LOTHAR
IPC分类号： C07C67/02 , C11C3/04 , C11C3/10 , C07C67/03
摘要： For the production of fatty acid esters of short-chain, aliphatic alcohols by the catalytic transesterification of natural fats and/or oils containing free fatty acids (oil phase) with the corresponding monoalcohols, the oil phase is subjected to preliminary esterification with the monoalcohols in the presence of acidic esterification catalysts at temperatures no higher than 120 DEG C. and under pressures no higher than 5 bars and in the presence of a liquid entraining agent substantially immiscible with the oil phase, after which the reaction product is separated into an entraining agent phase containing the acidic catalyst and water of reaction and the treated oil phase, the oil phase is then subjected to transesterification while the acidic catalyst-containing entraining agent phase is returned, after at least partial drying, to the preliminary esterification stage. By this process, fats and/or oils with acid numbers of up to 60 can be processed in the preliminary esterification stage to give an oil phase having a low acid number.

5. 发明专利

DK0738205T3 未知
公开(公告)号：DK0738205T3
公开(公告)日：1999-01-04
申请号：DK95905599
申请日：1994-12-27
申请人： HENKEL KGAA
发明人： WITTICH LEONHARD , HECK STEPHAN , FRIESENHAGEN LOTHAR , DEMMERING GUENTHER , KOMP HORST-DIETER , KIHLER MICHAEL , WEGENER INGO
IPC分类号： B28B7/38 , C10M105/12 , C10M173/00
摘要： PCT No. PCT/EP94/04324 Sec. 371 Date Aug. 16, 1996 Sec. 102(e) Date Aug. 16, 1996 PCT Filed Dec. 27, 1994 PCT Pub. No. WO95/18704 PCT Pub. Date Jul. 13, 1995A composition useful as a release agent for hydraulic binders is provided. The composition comprises water, an oil component comprising a water-immiscible monohydric alcohol component liquid at temperatures of 5 DEG to 15 DEG C. and selected from the group consisting of unsaturated fatty alcohols containing 12 to 22 carbon atoms and having iodine values of 40 to 170, Guerbet alcohols containing 16 to 28 carbon atoms, oxoalcohols containing 8 to 15 carbon atoms, and saturated alcohols containing 6 to 10 carbon atoms, and 0.5 to 5% by weight of an emulsifier, based on the oil component. The release agent is particularly useful for the treatment of formwork material in concrete construction.

6. 发明专利

DE59204701D1 未知
公开(公告)号：DE59204701D1
公开(公告)日：1996-01-25
申请号：DE59204701
申请日：1992-06-29
申请人： HENKEL KGAA
发明人： DEMMERING GUENTHER , PELZER CHRISTIAN , FRIESENHAGEN LOTHAR
IPC分类号： C07C69/30 , B01J31/04 , C07C67/03 , C11C3/04 , C11C3/10
摘要： PCT No. PCT/EP92/01463 Sec. 371 Date Jan. 10, 1994 Sec. 102(e) Date Jan. 10, 1994 PCT Filed Jun. 29, 1992 PCT Pub. No. WO93/01263 PCT Pub. Date Jan. 21, 1993.Fatty acid glycerides can be transesterified with lower aliphatic alcohols if the reaction is carried out in the presence of fatty acids corresponding to formula (II): R2-COOH (II), in which R2 is an aliphatic hydrocarbon moiety containing 11 to 17 carbon atoms and 0, 1 or 2 double bonds. The products are distinguished by a low content of bound glycerol and a low acid value. Removal or neutralization of the catalyst is unnecessary because, after the transesterification, the fatty acids are also present in the form of their esters.

7. 发明专利

ZA8509371B A PROCESS FOR THE PRODUCTION OF FATTY ACID METHYL ESTERS 未知
公开(公告)号：ZA8509371B
公开(公告)日：1986-07-30
申请号：ZA8509371
申请日：1985-12-06
申请人： HENKEL KGAA
发明人： LEPPER HERBERT , FRIESENHAGEN LOTHAR
IPC分类号： C07C67/03 , C07C67/58 , C07C69/24 , C07C69/52 , C07C69/58 , C11C3/00 , C11C3/04 , C07C
CPC分类号： C11C3/003 , C11C3/04

8. 发明专利

PH19123A A PROCESS FOR THE PRODUCTION OF FATTY ACID ESTERS OF SHORT-CHAIN ALIPHATIC ALCOHOLS FROM FATS AND/OR OILS CONTAINING FREE FATTY ACIDS 未知
公开(公告)号：PH19123A
公开(公告)日：1986-01-08
申请号：PH30729
申请日：1984-05-29
申请人： HENKEL KGAA
发明人： LEPPER HERBERT DR , FRIESENHAGEN LOTHAR
IPC分类号： C07C67/02 , C11C3/04 , C11C3/10 , C11B3/10 , C07C67/03
摘要： For the production of fatty acid esters of short-chain, aliphatic alcohols by the catalytic transesterification of natural fats and/or oils containing free fatty acids (oil phase) with the corresponding monoalcohols, the oil phase is subjected to preliminary esterification with the monoalcohols in the presence of acidic esterification catalysts at temperatures no higher than 120 DEG C. and under pressures no higher than 5 bars and in the presence of a liquid entraining agent substantially immiscible with the oil phase, after which the reaction product is separated into an entraining agent phase containing the acidic catalyst and water of reaction and the treated oil phase, the oil phase is then subjected to transesterification while the acidic catalyst-containing entraining agent phase is returned, after at least partial drying, to the preliminary esterification stage. By this process, fats and/or oils with acid numbers of up to 60 can be processed in the preliminary esterification stage to give an oil phase having a low acid number.

9. 发明专利

DE4418807A1 Release agent for hydraulic binder, esp. concrete or shell mould 未知
公开(公告)号：DE4418807A1
公开(公告)日：1995-12-07
申请号：DE4418807
申请日：1994-05-30
申请人： HENKEL KGAA
发明人： WITTICH LEONHARD , HECK STEPHAN DR , FRIESENHAGEN LOTHAR , DEMMERING GUENTHER DR , KOMP HORST DIESTER , KOEHLER MICHAEL DR
IPC分类号： B28B7/38 , C10M105/12 , C10M173/00 , B29C33/60 , E04G19/00
摘要： Release agent (I) for hydraulic binder is based on (a) a water-immiscible monofunctional alcohol (I) which is liquid at 5-15 deg C, selected from 12-22 C unsatd. fatty alcohols with an I2 no. of 40-170, 16-28 C Guerbet alcohols, 8-15 C oxo-alcohols and/or 6-10 C satd. alcohols and (b) opt. other water-immiscible organic cpds. as the oil components; (c) opt. other release agents normally used for these binders; and (d) water. The novelty is that (I) also contains (e) 0.5-5 wt.% emulsifier w.r.t. the oil components (a) and (b). Also claimed is a concentrate for the prepn. of (I).

10. 发明专利

DE4400272A1 Release agent for hydraulic binder, esp. concrete or shell mould 未知
公开(公告)号：DE4400272A1
公开(公告)日：1995-07-13
申请号：DE4400272
申请日：1994-01-10
申请人： HENKEL KGAA
发明人： WITTICH LEONHARD , HECK STEPHAN DR , FRIESENHAGEN LOTHAR , DEMMERING GUENTHER DR , KOMP HORST-DIETER , KOEHLER MICHAEL DR
IPC分类号： B28B7/38 , C10M105/12 , C10M173/00 , B29C35/00 , E04G19/00
摘要： Release agent (I) for hydraulic binder is based on (a) a water-immiscible monofunctional alcohol (I) which is liquid at 5-15 deg C, selected from 12-22 C unsatd. fatty alcohols with an I2 no. of 40-170, 16-28 C Guerbet alcohols, 8-15 C oxo-alcohols and/or 6-10 C satd. alcohols and (b) opt. other water-immiscible organic cpds. as the oil components; (c) opt. other release agents normally used for these binders; and (d) water. The novelty is that (I) also contains (e) 0.5-5 wt.% emulsifier w.r.t. the oil components (a) and (b). Also claimed is a concentrate for the prepn. of (I).

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