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    Self-supporting construction material for the manufacture of corrosion-resistant parts of apparatus in chemical plants,especially electrolysis plants
    1.
    发明授权
    Self-supporting construction material for the manufacture of corrosion-resistant parts of apparatus in chemical plants,especially electrolysis plants 失效
    用于制造化学植物，特别是电解质植物的装置耐腐蚀部件的自支撑构造材料

    公开(公告)号：US3556975A

    公开(公告)日：1971-01-19

    申请号：US3556975D

    申请日：1967-04-26

    Applicant: DYNAMIT NOBEL AG

    Inventor： HASS KARL ,  KOLHAGEN WALTER ,  CZEHOVSKY GUNTHER ,  KONERMANN HANS-EWALD

    IPC: C25B9/00 ,  B01K3/10

    CPC classification number: C25B9/00

    Abstract: THIS SPECIFICATION DESCRIBES A NOVEL USE FOR A PARTICULAR CHLORINATED HYDROCARBON POLYMER. THE POLYMER HAS A HYDROCARBON BACKBONE WITH CHLORINE SUBSTITUENTS THEREON. THE POLYMER CAN BE MANUFACTURED BY INITIALLY POLYMERIZING VINYL CHLORIDE, ETHYLENE, OR 1,2-DICHLORETHYLENE ALONE OR IN COMBINATION WITH EACH OTHER, AND THEN POST CHLORINATING THE POLYMERS TO PRODUCE A CHLORINATED POLYMERIC PRODUCT HAVING A CHLORINE CONTENT OF ABOUT 60 TO 73 WEIGHT PERCENT ARRANGED ABOUT 50 TO 90% IN A 1,2-DICHLOROETHYLENE CONFIGURATION. THE PRODUCT POLYMER IS SUBSTANTIALLY INSOLUBLE IN ACETONE AND HAS A RELATIVE VISCOSITY OF ABOUT 1.3 TO 25 WHEN MEASURED AS A 0.5 WEIGHT PERCENT SOLUTION IN O-DICHLOROBENZENE. THESE POLYMERS HAVE BEEN FOUND TO BE PARTICULARLY WELL ADAPTED TO PRODUCE DIMENSIONALLY STABLE, SELF-SUPPORTING, CORROSION-RESISTANT ARTICLES. THESE ARTICLES HAVE FOUND EXCEPTIONAL USE IN THE MANUFACTURE OF PARTS OF APLPARATUS USED IN A CORROSIVE ENVIRONMENT IN CHEMICAL PROCESSE. OF SPECIAL IMPORTANCE IS THE USE OF ARTICLES DESCRIBED IN ELECTROLYTIC PROCESSES, PARTICULARLY FOR CHLORINE PRODUCTION.

    Process for separating steam-volatile organic solvents from industrial process waste waters
    2.
    发明授权
    Process for separating steam-volatile organic solvents from industrial process waste waters 失效
    从工业废水中分离蒸汽挥发性有机溶剂的方法

    公开(公告)号：US3669847A

    公开(公告)日：1972-06-13

    申请号：US3669847D

    申请日：1969-07-24

    Applicant: DYNAMIT NOBEL AG

    Inventor： FEDER ERNST ,  DESELAERS KURT ,  CZEHOVSKY GUNTHER

    IPC: B01D3/36 ,  C02F1/04 ,  B01D3/06

    CPC classification number: C02F1/048 ,  B01D3/36

    Abstract: Steam-volatile organic solvents are removed from process waste waters by intimately mixing the process waste waters with steam to form an azeotropic steam mixture, withdrawing the azeotropic steam mixture from the resultant mixture of steam and water, and condensing said azeotropic steam mixture. The major amount of process waste water, thus freed of solvent content, is discharged as general sewage. An apparatus designed to conduct said process is also described.

    Abstract translation: 通过将工艺废水与蒸汽紧密混合以形成共沸蒸汽混合物，从所得到的蒸汽和水混合物中取出共沸蒸汽混合物，并冷凝所述共沸蒸汽混合物，将蒸汽挥发性有机溶剂从工艺废水中除去。 过程废水的主要量，因此排除溶剂含量，作为一般污水排放。 还描述了设计用于进行所述处理的装置。

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