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    PRODUCTION OF ALKALI METAL SALT OR ALKALINE EARTH METAL SALT OF 2,4-DICHLORO-6-HYDROXY-S-TRIAZINE
    1.
    发明专利
    PRODUCTION OF ALKALI METAL SALT OR ALKALINE EARTH METAL SALT OF 2,4-DICHLORO-6-HYDROXY-S-TRIAZINE 失效

    公开(公告)号：JP2000063367A

    公开(公告)日：2000-02-29

    申请号：JP22159699

    申请日：1999-08-04

    Applicant: DEGUSSA

    Inventor： SCHMIDT MANFRED DR ,  KLATTE CHRISTOPH ,  KUNZ KURT ,  LEUTNER JOSEF ,  OHLEMACHER JUERGEN ,  KRIMMER HANS-PETER DR

    IPC: C07D251/26

    Abstract: PROBLEM TO BE SOLVED: To provide a method for improving hydrolysis of cyanuric chloride to DCHT-Na under use of caustic soda solution so that the reaction is surely controllable even in industrial scale. SOLUTION: In this producing method, alkali metal hydroxide or alkali earth metal hydroxide in an amount of 1-2.5 equivalent based on 1 mol cyanuric chloride is charged in an aqueous solution or suspension into a vessel and cyanuric chloride is weighed and fed in the form of powder or aqueous suspension to the vessel while keeping pH value of the liquid in the range of 9.5-14 and cooling the liquid and when charging amount of the alkali metal hydroxide or alkaline earth metal hydroxide is stoichiometrically insufficient, residual amount of the above hydroxide including excessive amount up to 25% is weighed and fed during or after addition of cyanuric chloride in order to keep pH value of the liquid and the reaction is finished when the pH value does not substantially change any longer at selected temperature.

    3.
    发明专利
    未知

    公开(公告)号：DE59915010D1

    公开(公告)日：2009-06-04

    申请号：DE59915010

    申请日：1999-07-20

    Applicant: EVONIK DEGUSSA GMBH

    Inventor： SCHMIDT MANFRED DR ,  KLATTE CHRISTOPH ,  KUNZ KURT ,  LEUTNER JOSEF ,  OHLEMACHER JUERGEN ,  KRIMMER HANS-PETER DR

    IPC: C07D251/26

    Abstract: Production of alkali(ne earth) metal salts of 2,4-dichloro-6-hydroxy-s-triazine by hydrolysis comprises dosing cyanuric chloride (I) powder or aqueous suspension into an aqueous solution or suspension of 1.2-5 equivalent alkali(ne earth) hydroxide (II)/mole (I) and keeping the pH at 9.5-14 at ≤ 10 degrees C. Production of alkali(ne earth) metal salts of 2,4-dichloro-6-hydroxy-s-triazine by hydrolysis comprises dosing cyanuric chloride (I) powder or aqueous suspension into an aqueous solution or suspension of 1.2-5 equivalent alkali(ne earth) hydroxide (II)/mole (I) and keeping the pH at 9.5-14 at ≤ 10 degrees C. If less than the stoichiometric amount of (II) is present, the rest, including up to 25% excess, is added during and/or after addition of (I) to maintain the pH. Reaction is stopped when the pH no longer changes at the selected temperature.

    4.
    发明专利
    未知

    公开(公告)号：AT429422T

    公开(公告)日：2009-05-15

    申请号：AT99114036

    申请日：1999-07-20

    Applicant: EVONIK DEGUSSA GMBH

    Inventor： SCHMIDT MANFRED ,  KLATTE CHRISTOPH ,  KUNZ KURT ,  LEUTNER JOSEF ,  OHLEMACHER JUERGEN ,  KRIMMER HANS-PETER

    IPC: C07D251/26

    Abstract: Production of alkali(ne earth) metal salts of 2,4-dichloro-6-hydroxy-s-triazine by hydrolysis comprises dosing cyanuric chloride (I) powder or aqueous suspension into an aqueous solution or suspension of 1.2-5 equivalent alkali(ne earth) hydroxide (II)/mole (I) and keeping the pH at 9.5-14 at ≤ 10 degrees C. Production of alkali(ne earth) metal salts of 2,4-dichloro-6-hydroxy-s-triazine by hydrolysis comprises dosing cyanuric chloride (I) powder or aqueous suspension into an aqueous solution or suspension of 1.2-5 equivalent alkali(ne earth) hydroxide (II)/mole (I) and keeping the pH at 9.5-14 at ≤ 10 degrees C. If less than the stoichiometric amount of (II) is present, the rest, including up to 25% excess, is added during and/or after addition of (I) to maintain the pH. Reaction is stopped when the pH no longer changes at the selected temperature.

    6.
    发明专利
    未知

    公开(公告)号：DE19835774A1

    公开(公告)日：2000-02-17

    申请号：DE19835774

    申请日：1998-08-07

    Applicant: DEGUSSA

    Inventor： SCHMIDT MANFRED ,  KLATTE CHRISTOPH ,  KUNZ KURT ,  LEUTNER JOSEF ,  OHLEMACHER JUERGEN ,  KRIMMER HANS-PETER

    IPC: C07D251/26

    Abstract: Production of alkali(ne earth) metal salts of 2,4-dichloro-6-hydroxy-s-triazine by hydrolysis comprises dosing cyanuric chloride (I) powder or aqueous suspension into an aqueous solution or suspension of 1.2-5 equivalent alkali(ne earth) hydroxide (II)/mole (I) and keeping the pH at 9.5-14 at ≤ 10 degrees C. Production of alkali(ne earth) metal salts of 2,4-dichloro-6-hydroxy-s-triazine by hydrolysis comprises dosing cyanuric chloride (I) powder or aqueous suspension into an aqueous solution or suspension of 1.2-5 equivalent alkali(ne earth) hydroxide (II)/mole (I) and keeping the pH at 9.5-14 at ≤ 10 degrees C. If less than the stoichiometric amount of (II) is present, the rest, including up to 25% excess, is added during and/or after addition of (I) to maintain the pH. Reaction is stopped when the pH no longer changes at the selected temperature.

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