Process for producing cyclohexanone oxime by mixing an acidic aqueous solution comprising hydroxylammonium and phosphate with nitric acid
    1.
    发明授权
    Process for producing cyclohexanone oxime by mixing an acidic aqueous solution comprising hydroxylammonium and phosphate with nitric acid 失效
    通过将含有羟基铵和磷酸盐的酸性水溶液与硝酸混合来制备环己酮肟的方法

    公开(公告)号:US07537745B2

    公开(公告)日:2009-05-26

    申请号:US10538045

    申请日:2003-12-10

    IPC分类号: C01B21/06

    CPC分类号: C07C249/08 C01B21/1418

    摘要: The invention relates to a process for mixing a first acidic aqueous solution comprising hydroxylammonium and phosphate with a second acidic aqueous solution comprising nitric acid at a temperature between 20 and 80° C. resulting in a third acidic aqueous solution comprising hydroxylammonium, phosphate and nitric acid, wherein in the third acidic aqueous solution the total acid concentration minus the phosphate concentration is lower than 0.523*In([hydroxylammonium]/1.25)+422/(T+81) whereby [hydroxylammonium] is the concentration of hydroxylammonium in the third acidic aqueous solution, T is the temperature of the third acidic aqueous solution expressed in ° C. and all concentrations are expressed in mol/l.

    摘要翻译: 本发明涉及一种将包含羟基铵和磷酸盐的第一酸性水溶液与包含硝酸的第二酸性水溶液在20至80℃之间进行混合的方法,得到包含羟基铵,磷酸盐和硝酸的第三酸性水溶液 其中,在第三酸性水溶液中,总酸浓度减去磷酸盐浓度低于0.523 * In([羟基铵] /1.25)+ 422 /(T + 81),由此[羟基铵]是第三酸性中羟基铵的浓度 水溶液,T是以℃表示的第三酸性水溶液的温度,所有浓度以mol / l表示。

    Process for treating an organic solution comprising cyclohexanone oxime, cyclohexanone, and an organic solvent
    2.
    发明授权
    Process for treating an organic solution comprising cyclohexanone oxime, cyclohexanone, and an organic solvent 失效
    用于处理包含环己酮肟,环己酮和有机溶剂的有机溶液的方法

    公开(公告)号:US07423178B2

    公开(公告)日:2008-09-09

    申请号:US10541196

    申请日:2004-01-28

    IPC分类号: C07C249/08

    摘要: The invention relates to a process for treating an organic solution comprising cyclohexanone oxime, cyclohexanone and an organic solvent, said process comprising distilling the organic solution such as to obtain (i) a first product comprising organic solvent, (ii) a second product comprising cyclohexanone and (iii) a third product comprising cyclohexanone oxime; and feeding the second product to a cyclohexanone oxime synthesis zone in which hydroxylammonium is reacted with cyclohexanone to form cyclohexanone oxime.

    摘要翻译: 本发明涉及一种处理包含环己酮肟,环己酮和有机溶剂的有机溶液的方法,所述方法包括蒸馏有机溶液,以获得(i)包含有机溶剂的第一产物,(ii)包含环己酮的第二产物 和(iii)包含环己酮肟的第三产物; 并将第二产物进料到环己酮肟合成区,其中羟基铵与环己酮反应形成环己酮肟。