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    Production of beta-halo ethers
    12.
    发明授权
    Production of beta-halo ethers 失效
    生产β-羟基乙酸酯

    公开(公告)号：US3475497A

    公开(公告)日：1969-10-28

    申请号：US3475497D

    申请日：1966-11-23

    Applicant: DYNAMIT NOBEL AG

    Inventor： VOGT WILHELM ,  RICHTZENHAIN HERMANN

    IPC: C07C41/22 ,  C07C43/12 ,  C07C41/06 ,  C07C17/02 ,  C07C41/04

    CPC classification number: C07C41/22 ,  C07C43/12

    Abstract: b -Chloroalkyl ethers of the formula wherein R1 is hydrogen or an alkyl, alkenyl, alkoxyalkyl or aralkyl radical, R2 is hydrogen or an alkyl, alkoxyalkyl, aryl or aralkyl radical or the two R2 radicals may form a common alkylene chain of 3 to 10 carbon atoms, optionally with 1 or 2 double bonds, and R3 is an alkyl, cycloalkyl or aralkyl radical, R1, R2 and R3 being optionally substituted, e.g. by halogen atoms or alkoxy radicals, are obtained by reacting olefins of the formula R1R2C=CR1R2 with chlorine and alcohols of the formula R3OH under anhydrous conditions in the presence of an acid-combining agent which reacts with hydrogen chloride without the production of water. Suitable acid-combining agents are the alkali-metal alcoholates and the mono- and poly-epoxides. Olefin dichlorides of the formula R1R2ClC-CR1R2Cl may be produced as by-products.

    Stabilization of 1,1,1-trichloroethane with a four component system
    14.
    发明授权
    Stabilization of 1,1,1-trichloroethane with a four component system 失效
    1,1,1-三氯乙烷与四种组分体系的稳定性

    公开(公告)号：US3878256A

    公开(公告)日：1975-04-15

    申请号：US32425673

    申请日：1973-01-17

    Applicant: DYNAMIT NOBEL AG

    Inventor： RICHTZENHAIN HERMANN ,  STEPHAN RUDOLF

    IPC: C07C17/42 ,  C07C17/40

    CPC classification number: C07C17/42 ,  C07C19/05

    Abstract: A 1,1,1-trichloroethane stabilzing composition comprising an alcohol or 1,2 epoxy butane, at least one organic compound containing at least one nitrile group, 1,4-dioxane and nitromethane. Preferably the nitrile is Delta -methoxy acetonitrile and the alcohol is tertiary butanol.

    Abstract translation: 包含醇或1,2-环氧丁烷的1,1,1-三氯乙烷稳定组合物，至少一种含有至少一个腈基的有机化合物，1,4-二恶烷和硝基甲烷。 腈最好是DELTA-甲氧基乙腈，醇是叔丁醇。

    Method for the continuous production of 1,1-dichlorethane
    15.
    发明授权
    Method for the continuous production of 1,1-dichlorethane 失效
    连续生产1,1-二氯乙烷的方法

    公开(公告)号：US3707574A

    公开(公告)日：1972-12-26

    申请号：US3707574D

    申请日：1970-06-26

    Applicant: DYNAMIT NOBEL AG

    Inventor： STEPHAN RUDOLF ,  RICHTZENHAIN HERMANN

    IPC: C07C17/08 ,  C07C17/00 ,  C07C17/087 ,  C07C67/00

    CPC classification number: C07C17/087 ,  C07C19/045

    Abstract: A METHOD FOR THE CONTINUOUS PRODUCTION OF 1,1-DICHLORETHANE BY REACTING VINYL CHLORIDE INTRODUCED IN LIQUID FORM AND DRY HYDROGEN CHLORIDE IN 1,1-DICHLORETHANE AS REACTION MEDIUM IN THE PRESENCE OF CATALYTIC QUANTITIES OF AN ANHYDROUS CHLORIDE OF A TRIVALENT METAL I DISCLOSED CHARACTERIZED IN THAT THE REACTION IS CARRIED OUT IN A VERTICAL REACTION ZONE AT A TEMPERATURE BELOW ABOUT 50*C. THE LIQUID VINYL CHLORIDE AND DRY HYDROGEN CHLORIDE ARE INTRODUCED AT THE LOWER END OF THE REACTION ZONE. THE CATALYST IS MAINTAINED IN SUSPENSION IN THE LOWER PORTION OF THE REACTION ZONE BY REGULATING THE RATE AT WHICH THE STARTING MATERIALS ARE INTRODUCED INTO THE REACTION ZONE. THE 1,1-DICHLORETHANE REACTION PRODUCT WHICH IS ENTIRELY FREE OF SUSPENDED CATALYST IS REMOVED AT THE TOP OF THE REACTION ZONE.

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