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公开(公告)号：DD202721A5
公开(公告)日：1983-09-28
申请号：DD24109682
申请日：1982-06-25
Applicant: HOECHST AG
Inventor： KRAUSE WERNER , PIEPER WERNER
Abstract: The disclosure relates to process for making derivatives of vinylphosphonic acid or vinylpyrophosphonic acid. To this end, a ketone is reacted with tetraphosphorus hexoxide in the presence of catalytic proportions of a proton-yielding substance. In the event of the products desired to be produced being vinylphosphonic acid derivatives, the vinylpyrophosphonic acid derivatives first obtained are hydrolyzed with an equivalent quantity of water.
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公开(公告)号：FI830270L
公开(公告)日：1983-07-29
申请号：FI830270
申请日：1983-01-26
Applicant: HOECHST AG
Inventor： GRADL REINHARD , SCHIMMEL GUENTHER , KRAUSE WERNER , HEYMER GERO
IPC: C01B25/238 , B01D11/04 , C01B25/237 , C01B25/46 , C01G1/00 , C22B3/00 , C01B
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公开(公告)号：FI822490L
公开(公告)日：1983-01-16
申请号：FI822490
申请日：1982-07-13
Applicant: HOECHST AG
Inventor： SCHIMMEL GYNTHER , KRAUSE WERNER , GRADL REINHARD
Abstract: The disclosure relates to a process for liquid/liquid-extraction of heavy metal ions from acid aqueous solutions with the aid of water-insoluble dithiophosphoric acid diesters as extracting agents. More particularly, use is made of phosphoric acid solutions with a P2O5-content of from 3 to 80 weight %, the solutions being free from emulsion-forming organic contaminants or having previously been freed therefrom in known manner. The resulting aqueous phase is separated from the phase containing the dithiophosphoric acid diester.
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公开(公告)号：DK166086C
公开(公告)日：1993-08-23
申请号：DK126281
申请日：1981-03-20
Applicant: HOECHST AG
Inventor： KRAUSE WERNER , GROSSE JUERGEN , KLOSE WERNER
Abstract: The invention relates to a process wherein an alcohol and/or phenol is reacted with phosphorus pentasulfide in the presence of a catalyst which is selected from (a) phosphonium salts of the general formula: I (b) ammonium salts of the general formula: II (c) phosphine oxides of the general formula: III (d) phosphine sulfides of the general formula: IV (e) phosphinic acid derivatives of the general formula: V In formulae I through V, the substituents R1, R2, R3 and R4 each stand for identical or different alkyl-, aryl-, alkaryl- or aralkyl- groups having from 1 to 22 carbon atoms. A stands for an inorganic or organic acid, and X and Y, respectively, stand for both oxygen and sulfur, and M stands for a monovalent metal or oxygen.
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公开(公告)号：FI68388C
公开(公告)日：1985-09-10
申请号：FI830270
申请日：1983-01-26
Applicant: HOECHST AG
Inventor： GRADL REINHARD , SCHIMMEL GUENTHER , KRAUSE WERNER , HEYMER GERO
IPC: C01B25/238 , B01D11/04 , C01B25/237 , C01B25/46 , C01G1/00 , C22B3/00
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Patent Agency Ranking
公开(公告)号：PH17922A
公开(公告)日：1985-01-31
申请号：PH27529
申请日：1982-07-06
Applicant: HOECHST AG
Inventor： SCHIMMEL GUNTHER , KRAUSE WERNER , GRADL REINHARD
IPC: C02F1/26 , C01B25/238 , C02F1/62 , C22B3/00 , C22B3/38
Abstract: The disclosure relates to a process for liquid/liquid-extraction of heavy metal ions from acid aqueous solutions with the aid of water-insoluble dithiophosphoric acid diesters as extracting agents. More particularly, use is made of phosphoric acid solutions with a P2O5-content of from 3 to 80 weight %, the solutions being free from emulsion-forming organic contaminants or having previously been freed therefrom in known manner. The resulting aqueous phase is separated from the phase containing the dithiophosphoric acid diester.
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公开(公告)号：ZA8300530B
公开(公告)日：1983-11-30
申请号：ZA8300530
申请日：1983-01-27
Applicant: HOECHST AG
Inventor： GRADL REINHARD , SCHIMMEL GUENTHER , KRAUSE WERNER , HEYMER GERO
IPC: C01B25/238 , B01D11/04 , C01B25/237 , C01B25/46 , C01G1/00 , C01B
CPC classification number: C01B25/237 , C22B3/24 , Y02P10/234
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公开(公告)号：CA1156667A
公开(公告)日：1983-11-08
申请号：CA372042
申请日：1981-03-02
Applicant: HOECHST AG
Inventor： KRAUSE WERNER , GROSSE JUERGEN , KLOSE WERNER
Abstract: PROCESS FOR REACTING ALCOHOLS AND/OR PHENOLS WITH PHOSPHORUS PENTASULFIDE The invention relates to a process wherein an alcohol and/or phenol is reacted with phosphorus pentasulfide in the presence of a catalyst which is selected from a) phosphonium salts of the general formula: I or b) ammonium salts of the general formula: II or c) phosphine oxides of the general formula: III or d) phosphine sulfides of the general formula: IV or e) phosphinic acid derivatives of the general formula: In formulae I through V, the substituents R1, R2, R3 and R4 each stand for identical or different alkyl-, aryl-, alkaryl- or aralkyl- groups having from 1 to 22 carbon atoms. A stands for an inorganic or organic acid, and X and Y, respectively, stand for both oxygen and sulfur, and M stands for a monovalent metal or oxygen.
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公开(公告)号：FI822490A0
公开(公告)日：1982-07-13
申请号：FI822490
申请日：1982-07-13
Applicant: HOECHST AG
Inventor： SCHIMMEL GYNTHER , KRAUSE WERNER , GRADL REINHARD
Abstract: The disclosure relates to a process for liquid/liquid-extraction of heavy metal ions from acid aqueous solutions with the aid of water-insoluble dithiophosphoric acid diesters as extracting agents. More particularly, use is made of phosphoric acid solutions with a P2O5-content of from 3 to 80 weight %, the solutions being free from emulsion-forming organic contaminants or having previously been freed therefrom in known manner. The resulting aqueous phase is separated from the phase containing the dithiophosphoric acid diester.
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公开(公告)号：DE3774093D1
公开(公告)日：1991-11-28
申请号：DE3774093
申请日：1987-11-25
Applicant: HOECHST AG
Inventor： STAENDEKE HORST , KRAUSE WERNER
Abstract: Flame retardant polyurethane foams, esp. soft foams, based on polyetherpolyols, are made with a content of 2-50, esp. 5-15 pts.wt. per 100 pts.wt. polyol of at least one halogenated phosphonophosphoric acid ester of formula (I) in which X = halogen, R1 = 1-4C alkylene, A is =C=C(R3)2 or =C(R4)-C(R3)3, R3 (same or different) = 1-4C alkyl, H or halogen and R4 = H or halogen.
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