Purification of adiponitrile
    2.
    发明授权
    Purification of adiponitrile 失效
    纯化的ADIPONITRILE

    公开(公告)号:US3657315A

    公开(公告)日:1972-04-18

    申请号:US3657315D

    申请日:1969-12-03

    Applicant: BASF AG

    CPC classification number: C07C255/00

    Abstract: PURIFICATION OF ADIPONITRILE BY CRYSTALLIZATION FROM AN ALKANOL HAVING FROM FOUR TO EIGHT CARBON ATOM. THE PROCESS IS PARTICULARLY SUITABLE FOR THE PURIFICATION OF ADIPONITRILE CONTAINING CYANOCYCLOPENTANONIMINE. ADIPONITRILE IS AN INTERMEDIATE FOR THE PRODUCTION OF NYLON-6, A FIBER INTERMEDIATE.

    7.
    发明专利
    未知

    公开(公告)号:DE59603844D1

    公开(公告)日:2000-01-13

    申请号:DE59603844

    申请日:1996-09-10

    Applicant: BASF AG

    Abstract: The prodn. of the neopentyl glycol ester of hydroxypivalic acid (HPN) comprises reacting a soln. of hydroxy-pivalaldehyde (HPA) in a column at 20-200 mbar and a head temp. of 80-150 degrees C, distilling of low-boiling components at the top of the column and taking off HPN from the bottom.

    Production of aminoalkanol sulfuric acids

    公开(公告)号:GB1111854A

    公开(公告)日:1968-05-01

    申请号:GB3765665

    申请日:1965-09-03

    Applicant: BASF AG

    Abstract: Aminoalkanol sulphuric acids, i.e. sulphuric acid monoesters of aminoalkanols are prepared by allowing an aminoalkanol and sulphuric acid to flow into a vigorously stirred suspension agent which agent is immiscible with water and is kept boiling at 70 DEG to 150 DEG C., the water formed in the reaction and any water supplied with the reactants being distilled off together with part of the suspension agent, the reaction being effected at atmospheric or subatmospheric pressure.

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