Production of organo aluminum compounds
    1.
    发明授权
    Production of organo aluminum compounds 失效
    有机铝化合物的生产

    公开(公告)号:US3651114A

    公开(公告)日:1972-03-21

    申请号:US3651114D

    申请日:1969-11-28

    Applicant: ETHYL CORP

    Abstract: IMPROVEMENTS IN REACTIONS FOR PRODUCING ORGANO ALUMINUM COMPOUNDS ARE DESCRIBED. THE IMPROVEMENTS INVOLVE CONTROL OF THE PROPORTIONS OF REACTANTS FED FOR REACTIONS INVOLVING ALUMINUM, OLEFIN AND HYDROGEN IN THE PRESENCE OF AN ORGANO ALUMINUM COMPOUND. IT IS DISCLOSED THAT SIGNIFICANTLY INCREASED REACTION RATES ARE OBTAINED WHEN OLEFIN AND HYDROGEN ARE FED AT A RATIO SUBSTANTIALLY HIGHER THAN THE 2:1 MOLAR RATIO TAUGHT AS SUITABLE OR EVEN UNIMPORTANT BY MUCH OF THE PRIOR ART.

    Chemical process
    7.
    发明授权
    Chemical process 失效
    化学工艺

    公开(公告)号:US3923914A

    公开(公告)日:1975-12-02

    申请号:US37587173

    申请日:1973-07-02

    Applicant: ETHYL CORP

    CPC classification number: C01D3/04 C07C17/208 C07C19/075

    Abstract: A process is disclosed for preparing dibromomethane from the reaction of, in the presence of an inert solvent, alkali metal bromide and dihalomethane.

    Abstract translation: 公开了在惰性溶剂存在下,碱金属溴化物和二卤代甲烷的反应中制备二溴甲烷的方法。

    Process for the preparation of alkali-metal salts of carboxyalkoxy succinates
    8.
    发明授权
    Process for the preparation of alkali-metal salts of carboxyalkoxy succinates 失效
    制备羧酸烷基酯的碱金属盐的方法

    公开(公告)号:US3862219A

    公开(公告)日:1975-01-21

    申请号:US19112471

    申请日:1971-10-20

    Applicant: ETHYL CORP

    CPC classification number: C07C59/305 C07C59/01

    Abstract: It is disclosed that high purity alkali metal salts of carboxyalkoxy succinic acid are produced from maleic acid and a hydroxy organic acid by reaction of zinc or alkaline earth metal salts of said acids to form a zinc or alkaline earth metal carboxyalkoxy succinate, by reacting the zinc or alkaline earth metal carboxyalkoxy succinate with an alkali metal carbonate in a stoichiometric deficiency of carbonate to selectively react with the alkaline earth metal carboxyalkoxy succinate, leaving the impurities as insoluble alkaline earth metal salts, removing the zinc or alkaline earth metal as insoluble carbonate, and recovering an alkali metal carboxyalkoxy succinate solution which is then evaporated to dryness.

    Abstract translation: 公开了通过使所述酸的锌或碱土金属盐反应形成锌或碱土金属羧基烷氧基琥珀酸盐,由马来酸和羟基有机酸生成高纯度的羧基烷氧基琥珀酸碱金属盐,通过使锌 或碱土金属羧基烷氧基琥珀酸盐与碱金属碳酸盐在化学计量不足的碳酸盐中选择性地与碱土金属羧酸烷氧基琥珀酸酯反应,留下杂质作为不溶性碱土金属盐,除去作为不溶性碳酸盐的锌或碱土金属,以及 回收碱金属羧基烷氧基琥珀酸酯溶液,然后将其蒸发至干。

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