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    • 2. 发明申请
    • METHOD FOR PRODUCING TRANS-1,4-BIS(AMINOMETHYL) CYCLOHEXANE
    • 生产反式-1,4-双(氨基甲基)环己酮的方法
    • US20130197270A1
    • 2013-08-01
    • US13878090
    • 2011-10-05
    • Naritoshi YoshimuraShinji KiyonoTetsuya HamadaEiji WatanabeSaiko Sawada
    • Naritoshi YoshimuraShinji KiyonoTetsuya HamadaEiji WatanabeSaiko Sawada
    • C07C209/48
    • C07C209/48B01J23/44B01J25/00B01J25/02C07B2200/09C07C253/22C07C253/34C07C2601/14C07C255/46C07C211/18
    • A method for producing trans-1,4-bis(aminomethyl)cyclohexane includes a nuclear hydrogenation step of producing a hydrogenated terephthalic acid or terephthalic acid derivative by nuclear hydrogenation of a terephthalic acid or terephthalic acid derivative, the terephthalic acid or terephthalic acid derivative being at least one selected from the group consisting of terephthalic acid, terephthalic acid ester, and terephthalic acid amide; a cyanation step of treating the hydrogenated terephthalic acid or terephthalic acid derivative with ammonia, thereby producing 1,4-dicyanocyclohexane, and producing trans-1,4-dicyanocyclohexane from the obtained 1,4-dicyanocyclohexane; and an aminomethylation step of treating the trans-1,4-dicyanocyclohexane with hydrogen, thereby producing trans-1,4-bis(aminomethyl)cyclohexane.Metal oxide is used as a catalyst in the cyanation step, and the obtained trans-1,4-dicyanocyclohexane has a metal content of 3000 ppm or less.
    • 反式-1,4-双(氨基甲基)环己烷的制造方法包括通过对苯二甲酸或对苯二甲酸衍生物的核氢化制造氢化对苯二甲酸或对苯二甲酸衍生物的核氢化工序,对苯二甲酸或对苯二甲酸衍生物为 选自对苯二甲酸,对苯二甲酸酯和对苯二甲酸酰胺中的至少一种; 用氨处理氢化对苯二甲酸或对苯二甲酸衍生物的氰化步骤,从而得到1,4-二氰基环己烷,由所得的1,4-二氰基环己烷生产反式-1,4-二氰基环己烷; 和用氢处理反式-1,4-二氰基环己烷的氨基甲基化步骤,从而产生反式-1,4-双(氨基甲基)环己烷。 在氰化步骤中使用金属氧化物作为催化剂,得到的反式-1,4-二氰基环己烷的金属含量为3000ppm以下。