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11. 发明专利

GB2168701A A PROCESS FOR THE PRODUCTION OF FATTY ACID METHYL ESTERS 未知
公开(公告)号：GB2168701A
公开(公告)日：1986-06-25
申请号：GB8528953
申请日：1985-11-25
申请人： HENKEL KGAA
发明人： LEPPER DR 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： 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.

12. 发明专利

CA2180866A1 SEPARATING AGENTS FOR HYDRAULIC BINDERS 未知
公开(公告)号：CA2180866A1
公开(公告)日：1995-07-13
申请号：CA2180866
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 , KOEHLER MICHAEL , WEGENER INGO , SLADEK HANS-JUERGEN
IPC分类号： B28B7/38 , C10M105/12 , C10M173/00
摘要： Stable emulsions with excellent separating action in the removal of concrete shuttering can be made from separators for hydraulic binders which contain unsaturated fatty, Guerbet or oxo alcohols with 6 to 10 C atoms as the oil components. The effect can be significantly improved by the addition of 0.5 to 5 wt %. emulsifiers.

13. 发明专利

DE4242466A1 未知
公开(公告)号：DE4242466A1
公开(公告)日：1994-06-23
申请号：DE4242466
申请日：1992-12-16
申请人： HENKEL KGAA
发明人： DEMMERING GUENTHER DR , HECK STEPHAN DR , FRIESENHAGEN LOTHAR
IPC分类号： B01J8/06 , B01J23/80 , C07C29/149 , C09K23/02 , C09K23/42 , C07C31/125 , C07C33/025
摘要： C8-22 fatty alcohols are produced by a process which comprises contacting a triglyceride with hydrogen in the presence of a copper-zinc catalyst and in a reaction zone. The hydrogen pressure in the reaction zone is from about 200 to about 280 bar, the temperature of the entrance of the reaction zone is from about 200 DEG C. to about 230 DEG C., and the temperature of the exit of the reaction zone is from about 190 DEG C. to about 220 DEG C. The amount of 1,2-propanediol formed is optimized by the lower temperature of the exit portion of the reaction zone.

14. 发明专利

MX162267A 未知
公开(公告)号：MX162267A
公开(公告)日：1991-04-19
申请号：MX86685
申请日：1985-12-09
申请人： HENKEL KGAA
发明人： FRIESENHAGEN LOTHAR , LEPPER HERBERT
IPC分类号： C07C67/02 , C07C67/58 , C07C69/24 , C07C67/03 , C07C69/52 , C07C69/58 , C11B3/02 , C11C3/00 , C11C3/04 , C07C69/533
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.

15. 发明专利

GB2168701B A PROCESS FOR THE PRODUCTION OF FATTY ACID METHYL ESTERS 未知
公开(公告)号：GB2168701B
公开(公告)日：1988-11-30
申请号：GB8528953
申请日：1985-11-25
申请人： HENKEL KGAA
发明人： LEPPER DR 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： 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.

16. 发明专利

DE3319590A1 未知
公开(公告)号：DE3319590A1
公开(公告)日：1984-12-06
申请号：DE3319590
申请日：1983-05-30
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.

17. 发明专利

DE59407019D1 未知
公开(公告)号：DE59407019D1
公开(公告)日：1998-11-05
申请号：DE59407019
申请日：1994-10-31
申请人： HENKEL KGAA
发明人： DEMMERING GUENTHER , PELZER CHRISTIAN , FRIESENHAGEN LOTHAR
IPC分类号： C07C67/03 , C07C69/24 , C11B3/04 , C11C3/04
摘要： A process for the production of fatty acid lower alkyl esters comprising the steps of: A) treating at least one fatty acid ester of glycerol with from about 0.3 to about 3% by weight, based on the weight of ester, of an acid at an elevated temperature; B) removing said acid from the treated fatty acid ester; and C) reacting the treated fatty acid ester with at least one lower aliphatic alcohol to transesterify the fatty acid ester.

18. 发明专利

GR3026394T3 SEPARATING AGENTS FOR HYDRAULIC BINDERS 未知
公开(公告)号：GR3026394T3
公开(公告)日：1998-06-30
申请号：GR980400591
申请日：1998-03-17
申请人： HENKEL KGAA
发明人： WITTICH LEONHARD , HECK STEPHAN , FRIESENHAGEN LOTHAR , DEMMERING GUENTHER , KOMP HORST-DIETER , KOEHLER 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.

19. 发明专利

ES2113183T3 未知
公开(公告)号：ES2113183T3
公开(公告)日：1998-04-16
申请号：ES95905599
申请日：1994-12-27
申请人： HENKEL KGAA
发明人： WITTICH LEONHARD , HECK STEPHAN , FRIESENHAGEN LOTHAR , DEMMERING GUNTHER , KOMP HORST-DIETER , KOHLER MICHAEL
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.

20. 发明专利

DE59405440D1 未知
公开(公告)号：DE59405440D1
公开(公告)日：1998-04-16
申请号：DE59405440
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 , KOEHLER 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.

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