Purification of secondary alkyl amines
    1.
    发明授权
    Purification of secondary alkyl amines 失效
    仲烷基胺的纯化

    公开(公告)号:US3864402A

    公开(公告)日:1975-02-04

    申请号:US35823673

    申请日:1973-05-07

    Applicant: TEXACO INC

    CPC classification number: C07C213/10

    Abstract: This invention concerns the separation and purification of secondary alkyl primary amines from mixtures comprising major amounts of contaminants, through the formation of secondary alkyl primary amine-carbon dioxide complexes which are preferentially extracted by inert solvents which are immiscible or partially immiscible with said mixtures and have poor solubility for the contaminants contained therein.

    Abstract translation: 本发明涉及从包含主要量的污染物的混合物中分离和纯化仲烷基伯胺,通过形成仲烷基伯胺 - 二氧化碳络合物,其优选由惰性溶剂萃取,所述惰性溶剂与所述混合物不混溶或部分不混溶并具有 对其中所含污染物的溶解度差。

    Electrochemical chlorination of hydrocarbons in an hci-acetic acid solution
    4.
    发明授权
    Electrochemical chlorination of hydrocarbons in an hci-acetic acid solution 失效
    盐酸溶液中的碳氢化合物的电化学氯化

    公开(公告)号:US3692646A

    公开(公告)日:1972-09-19

    申请号:US3692646D

    申请日:1971-09-02

    Applicant: TEXACO INC

    CPC classification number: C25B3/06

    Abstract: A PROCESS OF ELECTROCHEMICALLY HALOGENATING HYDROCARBONS IN AN AQUEOUS HYDROHALIC ACID ELECTROLYTE COMPRISING PASSING CURRENT FROM A CATHODE TO AN ANODE IMMERSED IN AN ELECTROLYTE COMPRISING A MIXTURE OF AQUEOUS HYDROHALIC ACID AND 10-90 VOLUME PERCENT OF AN ALIPHATIC ACID OF 2-4 CARBON ATOMS. TYPICALLY, THE PROCESS INVOLVES CHLORINATING AN ALIPHATIC, CYCLOALIPHATIC OR AROMATIC HYDROCARBON IN AN ELECTROLYTIC CELL EMPLOYING GRAPHITE ELECTRODES USING A MIXTURE OF HYDROCHLORIC ACID AND ACETIC ACID. USING THE MIXED ACID ELECTROLYTE PREVENTS RAPID DETERIORATION OF THE ANODES AND INCREASES THE SOLUBILITY OF THE HYDROCARBON STARTING MATERIAL IN THE ELECTROLYTE.

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