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公开(公告)号：DE59100753D1
公开(公告)日：1994-02-10
申请号：DE59100753
申请日：1991-01-25
Applicant: BASF AG
Inventor： FIKENTSCHER ROLF DR , OPPENLAENDER KNUT DR , DIX JOHANNES PETER DR , SAGER WILFRIED DR , VOGEL HANS-HENNING DR , BARTHOLD KLAUS DR , ELFERS GUENTHER
Abstract: Trialkanolamine polyethers, obtainable by condensing tri-alkanolamine(s) in the presence of (hypo)phosphorus acid, are useful as demulsifiers in 0/W emulsion. The trialkanolamines are of formula (I), where R1-R3 = 1,2-(2-4C)alkylene.
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公开(公告)号：DE59204911D1
公开(公告)日：1996-02-15
申请号：DE59204911
申请日：1992-10-31
Applicant: BASF AG
Inventor： ELFERS GUENTHER , SAGER WILFRIED DR , VOGEL HANS-HENNING DR , OPPENLAENDER KNUT DR
Abstract: Crude oil deemulsifiers based on alkoxylated polyethyleneimines are obtained by reacting polyethyleneimine having a molecular weight from 2500 to 35,000 with in each case 5 to 40 mol of propylene oxide and ethylene oxide per ethyleneimine unit in the polyethyleneimine and are used for deemulsifying crude oil emulsions at 10 DEG C to 130 DEG C.
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公开(公告)号：DE4136661A1
公开(公告)日：1993-05-13
申请号：DE4136661
申请日：1991-11-07
Applicant: BASF AG
Inventor： ELFERS GUENTHER , SAGER WILFRIED DR , VOGEL HANS-HENNING DR , OPPENLAENDER KNUT DR
Abstract: Crude oil deemulsifiers based on alkoxylated polyethyleneimines are obtained by reacting polyethyleneimine having a molecular weight from 2500 to 35,000 with in each case 5 to 40 mol of propylene oxide and ethylene oxide per ethyleneimine unit in the polyethyleneimine and are used for deemulsifying crude oil emulsions at 10 DEG C to 130 DEG C.
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公开(公告)号：DK0444515T3
公开(公告)日：1997-12-29
申请号：DK91102446
申请日：1991-02-20
Applicant: BASF AG
Inventor： DIX JOHANNES PETER DR , OPPENLAENDER KNUT DR , FIKENTSCHER ROLF DR , SAGER WILFRIED DR , VOGEL HANS-HENNING DR , ELFERS GUENTHER
Abstract: The present invention relates to methods of demulsifying employing condensates as demulsifiers for oil-in-water emulsions and prepared from A) a precondensate from one or more trialkanolamines of the general formula I (I) in which R1 to R3 denote the same or different 1,2-alkylene groups of from 2 to 4 carbon atoms, and B) from 0.1 to 30% w/w, based on said precondensate, of one or more of the following compounds II: a) urea or a urea derivative of the general formula IIa (IIa) b) a urea derivative of the general formula IIb (IIb) c) a urethane of the general formula IIc (IIc) and/or d) a urethane of the general formula IId (IId) in which R1 is hydrogen, C1-C20-alkyl or C2-C20-alkenyl, R2 and R3 are the same or different and denote hydrogen or C1-C4-alkyl, R4 is C1-C4-alkyl and R5 is C1-C12-alkylene.
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公开(公告)号：DE4006255A1
公开(公告)日：1991-08-29
申请号：DE4006255
申请日：1990-02-28
Applicant: BASF AG
Inventor： FIKENTSCHER ROLF DR , OPPENLAENDER KNUT DR , DIX JOHANNES PETER DR , SAGER WILFRIED DR , VOGEL HANS-HENNING DR , ELFERS GUENTHER
Abstract: The present invention relates to methods of demulsifying employing condensates as demulsifiers for oil-in-water emulsions and prepared from A) a precondensate from one or more trialkanolamines of the general formula I (I) in which R1 to R3 denote the same or different 1,2-alkylene groups of from 2 to 4 carbon atoms, and B) from 0.1 to 30% w/w, based on said precondensate, of one or more of the following compounds II: a) urea or a urea derivative of the general formula IIa (IIa) b) a urea derivative of the general formula IIb (IIb) c) a urethane of the general formula IIc (IIc) and/or d) a urethane of the general formula IId (IId) in which R1 is hydrogen, C1-C20-alkyl or C2-C20-alkenyl, R2 and R3 are the same or different and denote hydrogen or C1-C4-alkyl, R4 is C1-C4-alkyl and R5 is C1-C12-alkylene.
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Patent Agency Ranking
公开(公告)号：DK0441198T3
公开(公告)日：1994-01-24
申请号：DK91100946
申请日：1991-01-25
Applicant: BASF AG
Inventor： DIX JOHANNES PETER DR , OPPENLAENDER KNUT DR , FIKENTSCHER ROLF DR , BARTHOLD KLAUS DR , SAGER WILFRIED DR , VOGEL HANS-HENNING DR , ELFERS GUENTHER
Abstract: Trialkanolamine polyethers, obtainable by condensing tri-alkanolamine(s) in the presence of (hypo)phosphorus acid, are useful as demulsifiers in 0/W emulsion. The trialkanolamines are of formula (I), where R1-R3 = 1,2-(2-4C)alkylene.
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公开(公告)号：DE4142579A1
公开(公告)日：1993-06-24
申请号：DE4142579
申请日：1991-12-21
Applicant: BASF AG
Inventor： ELFERS GUENTHER , SAGER WILFRIED DR , VOGEL HANS-HENNING DR , OPPENLAENDER KNUT DR
Abstract: Petroleum de-emulsifier based on an alkoxylate having a polydispersity of at least 1.7, and a process for preparing the alkoxylates, using a metal alcoholate as catalyst.
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公开(公告)号：DE59108893D1
公开(公告)日：1998-01-08
申请号：DE59108893
申请日：1991-02-20
Applicant: BASF AG
Inventor： FIKENTSCHER ROLF DR , OPPENLAENDER KNUT DR , DIX JOHANNES PETER DR , SAGER WILFRIED DR , VOGEL HANS-HENNING DR , ELFERS GUENTHER
Abstract: The present invention relates to methods of demulsifying employing condensates as demulsifiers for oil-in-water emulsions and prepared from A) a precondensate from one or more trialkanolamines of the general formula I (I) in which R1 to R3 denote the same or different 1,2-alkylene groups of from 2 to 4 carbon atoms, and B) from 0.1 to 30% w/w, based on said precondensate, of one or more of the following compounds II: a) urea or a urea derivative of the general formula IIa (IIa) b) a urea derivative of the general formula IIb (IIb) c) a urethane of the general formula IIc (IIc) and/or d) a urethane of the general formula IId (IId) in which R1 is hydrogen, C1-C20-alkyl or C2-C20-alkenyl, R2 and R3 are the same or different and denote hydrogen or C1-C4-alkyl, R4 is C1-C4-alkyl and R5 is C1-C12-alkylene.
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公开(公告)号：DE59205855D1
公开(公告)日：1996-05-02
申请号：DE59205855
申请日：1992-12-05
Applicant: BASF AG
Inventor： ELFERS GUENTHER , SAGER WILFRIED DR , VOGEL HANS-HENNING DR , OPPENLAENDER KNUT DR
Abstract: Petroleum de-emulsifier based on an alkoxylate having a polydispersity of at least 1.7, and a process for preparing the alkoxylates, using a metal alcoholate as catalyst.
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公开(公告)号：DE4003243A1
公开(公告)日：1991-08-08
申请号：DE4003243
申请日：1990-02-03
Applicant: BASF AG
Inventor： FIKENTSCHER ROLF DR , OPPENLAENDER KNUT DR , DIX JOHANNES PETER DR , SAGER WILFRIED DR , VOGEL HANS-HENNING DR , BARTHOLD KLAUS DR , ELFERS GUENTHER
Abstract: Trialkanolamine polyethers, obtainable by condensing tri-alkanolamine(s) in the presence of (hypo)phosphorus acid, are useful as demulsifiers in 0/W emulsion. The trialkanolamines are of formula (I), where R1-R3 = 1,2-(2-4C)alkylene.
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