公开(公告)号：US3839216A

公开(公告)日：1974-10-01

申请号：US27496572

申请日：1972-07-25

Applicant: DEGUSSA

Inventor： SCHREYER G ,  WEIBERG O

IPC: C07C409/24 ,  C07C67/00 ,  C07C407/00 ,  C07C409/26 ,  C11D7/56

CPC classification number: C07C407/003 ,  C07C409/26 ,  C07C409/24

Abstract: Water free solutions of percarboxylic acids having two to four carbon atoms are prepared by extracting aqueous solutions of the percarboxylic acids with phosphate esters having three to 30 carbon atoms, desorbing the extract with a solvent and dehydrating the solvent, in a given case by azeotropic distillation, if necessary after addition of a carboxylic acid ester boiling below the percarboxylic acid.

Abstract translation: 通过用具有3至30个碳原子的磷酸酯萃取过羧酸的水溶液，用溶剂解吸提取物并使溶剂脱水，在给定的情况下通过共沸蒸馏来制备具有2至4个碳原子的过羧酸的无水溶液 如果需要，在加入沸点低于过羧酸的羧酸酯之后。

公开(公告)号：US3816525A

公开(公告)日：1974-06-11

申请号：US16625071

申请日：1971-07-26

Applicant: DEGUSSA

Inventor： SCHREYER G ,  SCHWARZE W ,  WEIGERT W ,  WEIGEL H

IPC: C07C51/245 ,  C07C51/285 ,  C07C51/31 ,  C07C51/24 ,  C07C55/02 ,  C07C55/18

CPC classification number: C07C51/31 ,  C07C51/245 ,  C07C51/285 ,  C07C51/313 ,  C07C53/126 ,  C07C55/18 ,  C07C55/21

Abstract: A PROCESS FOR OXIDIZING THE VICINAL DIOL GROUPS OF ORGANIC DIOL COMPOUNDS INTO CARBOXYLIC GROUPS WITH OXYGEN OR AN OXYGEN-CONTAINING GAS IN THE PRESENCE OF AN INERT SINGLE-PHASE AQUEOUS OR ANHYDROUS ORGANIC SOLVENT MEDIUM OR A TWO-PHASE SOLVENT SYSTEM OF WATEER AND AN INERT WATER-INNISCIBLE SOLVENT, AND IN THE PRESENCE OF COBALT IONS OR A COBALT COMPOUND, AS WELL AS IN THE PRESENCE OF A PERCARBOXYLIC ACID, WHEREIN THE COBALT IONS OR THE COBALT COMPOUND ARE PROVIDED IN CATALYTIC AMOUNTS AND THE PERCARBOXYLIC ACID IS PRESENT, AT LEAST AT THE BEGINNING OF THE OXYGEN OXIDATION, IN AN AMOUNT WHICH IS SUFFICIENT FOR AT LEAST PARTIAL TRANSFORMATION OF THE COBALT IONS OR THE COBALT COMPOUND TO A HIGHER VALENCE.

公开(公告)号：US3857886A

公开(公告)日：1974-12-31

申请号：US28454472

申请日：1972-08-29

Applicant: DEGUSSA

Inventor： SCHREYER G ,  HENSEL J ,  SCHAEFER H

IPC: C07C231/00 ,  C07C20060101 ,  C07C67/00 ,  C07C231/06 ,  C07C233/03 ,  C07C103/30

CPC classification number: C07C233/00

Abstract: Pure N-alkyl formamides are obtained by reacting an olefin or alcohol with hydrogen cyanide according to the Ritter reaction in the presence of an acid. The N-alkyl formamide formed is extracted from the unneutralized acid reaction solution with a polar acid stable organic solvent. The N-alkyl formamide can be recovered from the organic solvent in conventional manner, e.g., by distillation, for example in a vacuum.

Abstract translation: 根据Ritter反应，在酸存在下，使烯烃或醇与氰化氢反应，得到纯的N-烷基甲酰胺。 形成的N-烷基甲酰胺用极性酸稳定的有机溶剂从未中和的酸反应溶液中提取。 N-烷基甲酰胺可以常规方式从有机溶剂中回收，例如通过蒸馏，例如在真空中回收。

公开(公告)号：US3789114A

公开(公告)日：1974-01-29

申请号：US3789114D

申请日：1972-01-27

Applicant: DEGUSSA

Inventor： GIESSELMANN G ,  SCHREYER G ,  WEIGERT W

IPC: C01B15/023 ,  C01B15/02 ,  B01J1/16

CPC classification number: C01B15/023

Abstract: Hydrogen peroxide is produced by the anthraquinone process employing a stabile 1, 3, 5-triazine as the solvent for the reaction carrier.

Abstract translation: 过氧化氢通过使用稳定的1,3,5-三嗪作为反应载体的溶剂的蒽醌法制备。

公开(公告)号：US3824235A

公开(公告)日：1974-07-16

申请号：US28304072

申请日：1972-08-23

Applicant: DEGUSSA

Inventor： WEIGERT W ,  SCHREYER G ,  WEIBERG O ,  KLEEMANN A ,  KRUEGER M

IPC: C07D301/14 ,  C07D1/08 ,  C07D1/16 ,  C07D1/18

CPC classification number: C07D301/14

Abstract: OLEFINICALLY UNSATURATED ORGANIC COMPOUNDS ARE EPOXIDIZED WITH SOLUTIONS OF ORGANIC PERCARBOXYLIC ACID. AN AQUEOUS SOLUTION OF THEPERCARBOXYLIC ACID HAVING AT LEAST 2 CARBON ATOMS IS DEHYDRATED BY EXTRACTION AND/OR DISTILLATION WITH THE COMPOUND TO BE EPOXIDIZED. THE DEYDRATED PRODUCT IS HELD AT 30-100* C. AND SUBJECTED TO A SUBSEQUENT REACTION.

公开(公告)号：US3799979A

公开(公告)日：1974-03-26

申请号：US25667672

申请日：1972-05-25

Applicant: DEGUSSA

Inventor： HENSEL J ,  LUSSLING T ,  SCHREYER G ,  WEIGERT W ,  NOLL E ,  SCHAEFER H

IPC: B01J23/30 ,  B01J23/887 ,  B01J27/199 ,  C07C51/25 ,  C07C51/20 ,  C07C57/04

CPC classification number: B01J23/002 ,  B01J23/30 ,  B01J23/8876 ,  B01J27/199 ,  B01J2523/00 ,  C07C51/252 ,  C07C57/04 ,  B01J2523/53 ,  B01J2523/55 ,  B01J2523/68 ,  B01J2523/69 ,  B01J2523/3737 ,  B01J2523/54 ,  B01J2523/842 ,  B01J2523/845 ,  B01J2523/847

Abstract: ALPHA BETA UNSATURATED CARBOXYLIC ACIDS ARE PRODUCED BY CATALYTCALLY OXU IDIZING ALKENES WITH OXYGEN, SUITABLY IN THE PRESENCE OF STEAM, ON A MIXED CATALYST BED CONSISTING OF A MIXTURE AND/OR COMPOUND OF OXIDES OF ANTIMONY, MOLYBDENUM, VANADIUM, AND TUNGSTEN AND IN A GIVEN CASE ONE OR MORE OXIDES OF LEAD SILVER COPPER TIN TITANIUM BISMUTH AND/OR OXYGEN CONTAINING COMPOUNDS OF THESE ELEMENTS AS THE FIRST CATALYST AND A MIXTURE AND OR COMPOUNDS OF OXIDES OF NICKEL, COBALT IRON BISMUTH PHOSPHORUS, MOLYBDENUM AND IN A GIVEN CASE SAMARIUM OR TANTALUM AND/OR OXYGEN CONTAINING COMPOUNDS OF THESE ELEMENTS AS SECOND CATALYSTS. THE CATALYSTS CAN INCLUDE CARRIERS.

公开(公告)号：US3799948A

公开(公告)日：1974-03-26

申请号：US14370271

申请日：1971-05-13

Applicant: DEGUSSA

Inventor： KRUGER M ,  NOLL E ,  WEIGERT W ,  SCHREYER G ,  TANNER H

IPC: C07D301/14 ,  C07C1/16

CPC classification number: C07D301/14

Abstract: PROCESS FOR RECOVERING PURE CARBOXYLIC ACID FREE EPICHLORHYDRIN FROM THE REACTION MIXTURES CONTAINING THE SAME AND WHICH HAS BEEN OBTAINED IN REACTING ALLYLCHLORIDE WITH PERCARBOXYLIC ACID WHICH COMPRISES EXTRACTING THE REACTION MIXTURE WITH GLYCEROL OR A SATURATED DIOL WHOSE BOILING POINT IS HIGHER THAN THAT OF THE CARBOXYLIC ACID FORMED FROM THE PERCARBOXYLIC ACID AND THEREAFTER SEPARATELY WORKING UP THE EXTRACT AND THE CARBOXYLIC ACID FREE REACTION MIXTURE TO RECOVER THE CARBOXYLIC ACID AND EPICHLOROHYDRIN.

公开(公告)号：US3776948A

公开(公告)日：1973-12-04

申请号：US3776948D

申请日：1970-08-07

Applicant: DEGUSSA

Inventor： KLEEMANN A ,  SCHREYER G ,  WEIBERG O ,  WEIGERT W

IPC: C07C27/00 ,  C07C29/09 ,  C07C29/128 ,  C07C31/22 ,  C07C67/00 ,  C07C29/02

CPC classification number: C07C29/095 ,  C07C29/1285 ,  C07C31/225

Abstract: GLYCERINE IS PRODUCED BY REACTING ALLYL ACETATE WITH AQUEOUS PERACETIC ACID. THE MONOACETIN FORMED IS CONVERTED TO GLYCERINE BY ALCOHOLYSIS OR AQUEOUS SAPONIFICATION AFTER REMOVAL OF UNEACTED ALLYL ACETATE, CETIC ACID AND WATER.

公开(公告)号：US3819818A

公开(公告)日：1974-06-25

申请号：US25442572

申请日：1972-05-18

Applicant: DEGUSSA

Inventor： SCHREYER G ,  WEIBERG O ,  GIESSELMANN G ,  MONCH H

IPC: C01B15/017 ,  C01B19/02 ,  B01J9/22

CPC classification number: C01B19/02 ,  C01B15/017

Abstract: HYDROGEN PEROXIDE IS CONVERTED FROM AN AQUEOUS SOLUTION INTO VAPOR OR LIQUID MIXTURES WITH NON AQUEOUS COMPOUNDS BY EXTRACTING AQUEOUS SOLUTIONS OF HYDROGEN PEROXIDE WITH HIGH BOILING SOLVENTS WHICH HAVE A HIGH SELECTIVITY FOR HYDROGEN PEROXIDE AND ARE RESISTANT TO HYDROGEN PEROXIDE AND WATER. A PORTION OF THE WATER ALSO EXTRACTED IS DIRECTLY DISTILLED FROM THE RESULTING EXTRACTION MIXTURE WITHOUT ADDITION OF AN ENTRAINING AGENT. SUBSEQUENTLY THE HYDROGEN PEROXIDE IS VAPORIZED IN A VACUUM FROM THE WATER POOR EXTRACT WITH ADDITION IN THE VAPOR PHSE OF THE DESIRED MIXING PARTENER WHICH BOILS LOWER THAN THE EXTRACTING AGENT WHEREUPON THE HYDROGEN PEROXIDE CONTAINING VAPORS ARE DRAWN OFF OR CONDENSED. THE HYDROGEN PEROXIDE CONTAINING VAPORS CAN BE PURIFIED BY PARTIAL CONDENSATION AND THE HIGH BOILING SOLVENT CAN BE RETURNED TO THE EXTRACTION STEP.

公开(公告)号：US3799949A

公开(公告)日：1974-03-26

申请号：US20284271

申请日：1971-11-29

Applicant: DEGUSSA

Inventor： WEIGERT W ,  SCHREYER G ,  TANNER H ,  LUSSLING T ,  NOLL E ,  KELLER R ,  KRUGER M

IPC: C07D301/14 ,  C07D1/16

CPC classification number: C07D301/14

Abstract: ALLYL CHLORIDE IN EXCESS IS EPOXIDIZED WITH A SOLUTION OF PERPOROPIONIC ACID OR PERBUTYRIC ACID TO FORM EPICHLORHYDRIN. THE EXCESS ALLYL CHLORIDE AND EPICHLORHYDRIN FORMED ARE SEPARATED BY DISTILLATION.