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    THIOCARBAMOYLALKYLAMINO-S-TRIAZINES
    51.
    发明专利
    THIOCARBAMOYLALKYLAMINO-S-TRIAZINES 未知

    公开(公告)号：GB1203544A

    公开(公告)日：1970-08-26

    申请号：GB1137269

    申请日：1969-03-04

    Applicant: DEGUSSA

    Inventor： SCHWARZE WERNER ,  WEIGERT WOLFGANG

    IPC: C07D251/50 ,  A01N43/70 ,  A01P13/00 ,  C07D251/52 ,  C07D251/54

    Abstract: 1,203,544. 8-Triazine derivatives. DEUTSCHE GOLD-UND SILBER SCHEIDEANSTALT. 4 March, 1969 [22 March, 1968], No. 11372/69. Heading C2C. [Also in Division A5] Novel 8-triazine derivatives of the general formula wherein X is a halogen atom or an azido, C 1-6 alkoxy or C 1-6 alkylthio group; B 1 and R 2 are each a hydrogen atom or a C 1-6 alkyl or C 2-6 alkenyl group optionally substituted by a halogen atom or a hydroxy, cyano, C 1-6 alkoxy or C 1-6 alkylthio group; R 3 and R 4 are each a C 1-8 alkyl, C 2-8 alkenyl or aralkyl group and either R 3 or R 4 may be a hydrogen atom; or R 3 and R 4 are attached to one another to form a 5-7-membered saturated carbocyclic ring; and R 5 and R 6 are each a hydrogen atom or a C 1-6 alkyl group, are prepared (a) when X is a C 1-6 alkoxy or C 1-6 alkylmercapto group, by reaction of the corresponding 2-(R 1 R 2 N)-4- cyanoalkylamino-6-alkoxy- or alkylthio-s-triazine with hydrogen sulphide in the presence of a base and optionally in the presence of primary amines; (b) when X is a halogen atom, by reaction of a cyanuric halide with an aminoacetic acid thioamide of the general formula followed by reaction of the resulting 2,4-bis-halo- 6 - thiocarbamoylalkylamino - s - triazine with ammonia or an amine of the general formula R 1 R 2 NH; (c) when X is a C 1-6 alkoxy, C 1-6 alkylthio or azido group, by reaction of the corresponding s-triazine derivative of the first general formula above wherein X is a halogen atom with an alcohol or alkylmercaptan in the presence of an acid acceptor or with an alkali metal azide in dimethylformamide or dimethylsulphoxide, respectively; (d) when X is an azido group, by reaction of the corresponding s-triazine derivative of the first general formula above wherein X is a quaternary amino group with an alkali metal azide in water; and (e) when X is a C 1-6 alkylthio group, by alkylation of the corresponding s-triazine derivative of the first general formula above wherein X is a mercapto group.

    PROCESS FOR RECOVERING ACRYLIC ACID AND ACROLEIN
    52.
    发明专利
    PROCESS FOR RECOVERING ACRYLIC ACID AND ACROLEIN 未知

    公开(公告)号：CA1000732A

    公开(公告)日：1976-11-30

    申请号：CA188982

    申请日：1973-12-27

    Applicant: DEGUSSA

    Inventor： NOLL EWALD ,  SCHAEFER HANS ,  SCHMID HORST ,  WEIGERT WOLFGANG

    IPC: B01D53/72 ,  B01D53/77 ,  C07C27/00 ,  C07C27/14 ,  C07C27/26 ,  C07C45/00 ,  C07C45/78 ,  C07C47/22 ,  C07C51/00 ,  C07C51/25 ,  C07C51/42 ,  C07C51/48 ,  C07C57/07 ,  C07C67/00

    Abstract: 1458397 Acrylic acid DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT 10 Dec 1973 [27 Dec 1972] 07195/76 Divided out of 1458396 Heading C2C Pure acrylic acid is prepared from a solution of acrylic acid in a mixture of water and organic liquid which is a monohydric aliphatic alcohol (4 to 10 C), an acetate or acrylate thereof or a mixture of these alcohols and/or esters by a two-stage distillation at reduced pressure, the substances with lower boiling points than acrylic acid being removed in the first stage and acrylic acid and the organic liquid being separated in the second stage. The organic liquid has a higher boiling point than acrylic acid, forms an azeotrope with water but not with acrolein or acrolein/water mixture, and produces with acrylic acid a solution in which the acrylic acid has an activity coefficient smaller than 1À5. The acrylic acid solution may be from the catalytic oxidation of propylene or acrolein and impurities comprise acetic acid, formaldehyde, acrolein and furfurol. An example describes the use of 2-ethylhexanol as the organic liquid.

    PROCESS FOR PRODUCING HYDROGEN PEROXIDE
    57.
    发明专利
    PROCESS FOR PRODUCING HYDROGEN PEROXIDE 未知

    公开(公告)号：CA954671A

    公开(公告)日：1974-09-17

    申请号：CA110561

    申请日：1971-04-16

    Applicant: DEGUSSA

    Inventor： GIESSELMANN GUNTER ,  SCHREYER GERD ,  WEIGERT WOLFGANG

    IPC: C01B15/023

    Abstract: 1354032 N,N-Diethyl-N,N 1 -di-n-butyl urea DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT 19 April 1971 [18 April 1970] 40785/73 Divided out of 1354031 Heading C2C N,N-Diethyl-N,N 1 -di-n-butyl urea, which is a novel compound, is obtained by reacting phosgene with di-n-butylamine and then with diethylamine or vice versa.

    CATALYSTS FOR THE OXIDATION OF (ALPHA),(BETA)-UNSATURATED ALDEHYDES TO (ALPHA),(BETA)-UNSATURATED CARBOXYLIC ACIDS AND PROCESS FOR THEIR PRODUCTION
    58.
    发明专利
    CATALYSTS FOR THE OXIDATION OF (ALPHA),(BETA)-UNSATURATED ALDEHYDES TO (ALPHA),(BETA)-UNSATURATED CARBOXYLIC ACIDS AND PROCESS FOR THEIR PRODUCTION 未知

    公开(公告)号：CA953701A

    公开(公告)日：1974-08-27

    申请号：CA125034

    申请日：1971-10-13

    Applicant: DEGUSSA

    Inventor： HENSEL JOERG ,  LUESSLING THEODOR ,  SCHAEFER HANS ,  NOLL EWALD ,  WEIGERT WOLFGANG

    IPC: B01J23/30 ,  B01J23/68 ,  B01J23/84 ,  B01J23/888 ,  B01J37/02 ,  C07C51/25 ,  C07C57/055

    Abstract: 1374291 Oxidation catalysts DEUTSGHE GOLD-UND SILBER-SCHEIDEANSTALT 12 Oct 1971 [13 Oct 1970] 47392/71 Heading B1E [Also in Division C2] Catalyst for use in the oxidation of α,#- unsaturated aldehyde to the corresponding α,#-unsaturated carboxylic acid comprises (a) antimony, vanadium, molybdenum, tungsten and at least one additional element selected from copper, silver, titanium, tin, lead and bismuth which are present in combined form with oxygen and in an Sb:V:Mo:W:additional elements) atomic ation of 1-60:0.5-25:12:0.1-12: 0.1-12 and, optionally, (b) support material which may be kieselguhr or highly disperse silica or, preferably, a mixture of keiselguhr and/or montmorillonite with highly disperse silica, the support material advantageously being a mixture of at least one component having a surface area of from 0.5 to 30 m 2 /g (for example kieselguhr, montmorillonite) and at least one component having a surface area of from 50 to 500 m 2 /g (for example highly disperse silica). The catalyst may be prepared by a procedure wherein a mixture obtained by combining oxides (or compounds thermally decomposable thereto, for example nitrates or ammonium salts of oxyacids) of antimony, vanadium, molybdenum and tungsten, an oxide (or a compound thermally decomposable thereto, for example a nitrate) of the or each additional element and, optionally, support material and/or at least one thermally decomposable ammonium salt, for example ammonium nitrate, is heated in an oxygen-containing gas, for example air, in a first stage at a temperature of from 150 to 275‹C and in a second stage at a temperature of from 40 to 480‹C and, optionally, thereafter is heated in a stream of weekly reducing or inert gas, for example nitrogen; at a temperature of from 350 to 600‹C. Between the two stages of heating in the oxygen-containing gas, the mixture may be shaped into pressings or mouldings, optionally after being ground and mixed with a pressing aid, for example graphite. When the support material is a mixture of montmorillonite and highly disperse silica, the montmorillonite may be pre-heated to a temperature of from 900 to 1200‹C, optionally after treatment with acid, for example hydrochloric acid, nitric acid, sulphuric acid or phosphoric acid. Examples relate to the preparation of catalyst which contains, as additional element(s), copper (Examples 1 to 4 and 11 to 15) or titanium (Example 5) or lead (Example 6) or silver (Example 7) or bismuth (Example 8) or tin (Example 9) or copper and lead in combination (Example 10) and, as support material, kieselguhr (Example 1) or kieselguhr and highly disperse silica in combination (Examples 2, 3 and 5 to 15) or montmorillonite and highly disperse silica in combination (Example 4), the preparation of the catalyst of Example 14 involving a final heat treatment in nitrogen at 500‹C and of the catalyst of Example 15 involving the use of ammonium nitrate.

    GLUTARIC DIALDEHYDE MONOXIME, DERIVATIVES THEREOF AND A PROCESS FOR PRODUCING SAME
    59.
    发明专利
    GLUTARIC DIALDEHYDE MONOXIME, DERIVATIVES THEREOF AND A PROCESS FOR PRODUCING SAME 未知

    公开(公告)号：CA942752A

    公开(公告)日：1974-02-26

    申请号：CA84568

    申请日：1970-06-03

    Applicant: DEGUSSA

    Inventor： HEIMBERGER WERNER ,  WEIGERT WOLFGANG

    IPC: A01G1/00 ,  C05F9/00 ,  C07C67/00 ,  C07C239/00 ,  C07C251/34 ,  C07D498/08

    Abstract: 1309817 Glutarodialdehyde monoxime derivatives DEUTSCHE GOLDUND SILBERSCHEIDEANSTALT 2 June 1970 [3 June 1969] 26521/70 Heading C2C A process for the production of glutarodialdehyde monoxime and derivatives thereof having the general formulµ wherein R 1 -R 4 are each hydrogen atoms, (C 1 - C 6 ) alkyl radicals, -CN or -CONH 2 radicals, or radicals of the formulµ -CH(OR) 2 and -COOR in which R is a hydrogen atom or (C 1 -C 6 ) alkyl radical, comprises reacting glutarodialdehyde or the corresponding derivative thereof in aqueous solution with a hydroxylamine salt in a molar ratio of 1 : 1, the solution being neutralized or the reaction being carried out in the presence of an acid acceptor, preferably at a pH of from 5 to 7. An example also describes the preparation of the 2,4-dinitrophenyl hydrazone derivative and conversion of the monoxime into the dioxime by reacting with a further mole of the hydroxylamine salt.

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