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    Process for the production of lower aliphatic mercaptans
    1.
    发明授权
    Process for the production of lower aliphatic mercaptans 失效
    生产下一代鱼类的方法

    公开(公告)号：US3697602A

    公开(公告)日：1972-10-10

    申请号：US3697602D

    申请日：1969-07-02

    Applicant: DEGUSSA

    Inventor： SCHREYER GERD ,  WEIGERT WOLFGANG

    IPC: C07C319/08 ,  C07C319/14 ,  C07C321/04 ,  C07C321/22 ,  C07C149/14

    CPC classification number: C07C319/08 ,  C07C321/04

    Abstract: Lower alkyl mercaptans prepared from alkanols and hydrogen sulfide are obtained in pure form by separating the gaseous mixture of hydrogen sulfide, alkanol, alkyl mercaptan, dialkyl sulfide, water, dialkyl either and inert gases at a pressure up to 10 atm. (gauge) and a temperature of 10* to 140* C. into volatile and non-volatile portions, the volatiles washed countercurrently to remove entrained alkyl mercaptan and after separating of the volatile hydrogen sulfide and ethers from the mercaptan the mercaptan is further separated from the other nonvolatiles as a substantially pure product.

    Process for production of cyanuric chloride
    4.
    发明授权
    Process for production of cyanuric chloride 失效
    氰尿酰氯生产工艺

    公开(公告)号：US3925377A

    公开(公告)日：1975-12-09

    申请号：US48345474

    申请日：1974-06-26

    Applicant: DEGUSSA

    Inventor： GEIGER FRIEDHELM ,  HEIMBERGER WERNER ,  SCHREYER GERD ,  WEIGERT WOLFGANG

    IPC: C07D251/28

    CPC classification number: C07D251/28

    Abstract: There is provided a process for the recovery of liquid cyanuric chloride from a mixture formed by the trimerization of cyanogen chloride in a trimerization reactor with subsequent fractionation of said mixture comprising conducting the mixture in an at least partially gaseous condition at 146* to 500*C. to a column system, bringing said mixture in a first fractionating column into contact with a solvent for cyanuric chloride having a boiling point between that of cyanogen chloride and that of cyanuric chloride and which is stable to cyanuric chloride, cyanogen chloride, chlorine and hydrogen chloride, recovering condensed liquid cyanuric chloride from the bottom of said first column at a temperature above the boiling point of said solvent, removing the distillate mixture containing solvent, cyanogen chloride, chlorine and any carbon dioxide, nitrogen and hydrogen chloride from the top of said first column, partially condensing a portion of said distillate and returning said partial condensate to the top of the first fractionating column, leading the solvent containing residual gas of chlorine, cyanogen chloride and any carbon dioxide, nitrogen and hydrogen chloride present to a second fractionating column adding sufficient liquid cyanogen chloride to the top of said second column to maintain a reflux in the top of said second column, removing a mixture of chlorine and cyanogen chloride and any carbon dioxide, nitrogen and hydrogen chloride free of said solvent from the top of said second column, returning the chlorine and cyanogen chloride to the trimerization reactor, insuring that the gas entering said reactor contains at least 50 weight percent cyanogen, collecting chlorine and cyanogen chloride free solvent in the bottom of the second column and returning it to the top of the first fractionating column.

    Abstract translation: 提供了一种从三氯化反应器中氯化氰三氯甲烷形成的混合物回收液态氰尿酰氯的方法，随后分馏所述混合物，包括在146℃至500℃下至少部分气态条件下进行混合 将所述混合物置于第一分馏塔中，与氰化氯和氰尿酰氯之间的沸点的氰尿酰氯溶剂接触，并且对氰尿酰氯，氯化氰，氯和氢稳定 氯化物，在所述溶剂的沸点以上的温度下从所述第一塔的底部回收冷凝的液体氰尿酰氯，从所述溶剂的顶部除去含有溶剂，氯化氰，氯和任何二氧化碳，氮和氯化氢的馏出物混合物 第一列，部分地冷凝所述馏出物的一部分并返回所述部分 将冷凝物导入第一分馏塔的顶部，导致含有残留气体的氯，氯化氰和任何二氧化碳，氮和氯化氢的溶剂存在于第二分馏塔中，向第二塔的顶部加入足够的液态氯化氰至 在所述第二塔的顶部保持回流，从所述第二塔的顶部除去氯和氯化氰以及不含所述溶剂的任何二氧化碳，氮和氯化氢的混合物，将氯和氯化氰返回到三聚反应器 确保进入所述反应器的气体含有至少50重量％的氰，在第二塔的底部收集氯和不含氯化氰的溶剂并将其返回到第一分馏塔的顶部。

    Process for the production of hydrogen peroxide
    5.
    发明授权
    Process for the production of hydrogen peroxide 失效
    生产过氧化氢的方法

    公开(公告)号：US3699217A

    公开(公告)日：1972-10-17

    申请号：US3699217D

    申请日：1970-03-23

    Applicant: DEGUSSA

    Inventor： SCHREYER GERD ,  WEIBERG OTTO ,  WEIGERT WOLFGANG

    IPC: C01B15/023 ,  C01B15/02 ,  C07C49/68

    CPC classification number: C01B15/023

    Abstract: Esters of trialkyl acetic acids; preferably pivalic acid, with higher alkanols, glycols, phenols or cycloalkanols are employed as solvents for the reaction carriers in the anthraquinone process for preparing hydrogen peroxide.

    Abstract translation: 三烷基乙酸的酯; 优选新戊酸与较高级的链烷醇，二醇，酚或环烷醇用作用于制备过氧化氢的蒽醌方法中的反应载体的溶剂。

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