Process for the purification of waste waters containing organic and
inorganic sulphur compounds
    4.
    发明授权
    Process for the purification of waste waters containing organic and inorganic sulphur compounds 失效
    净化含有机和无机硫化合物的废水的方法

    公开(公告)号:US6045696A

    公开(公告)日:2000-04-04

    申请号:US118202

    申请日:1998-07-17

    IPC分类号: C02F1/26 C02F1/58

    CPC分类号: C02F1/26 Y10S210/909

    摘要: This invention relates to a process for the purification of waste waters containing organic and, should the situation arise, inorganic sulphur compounds, which waste waters contain a proportion of mercaptobenzothiazole and/or derivatives thereof and, should the situation arise, a proportion of benzothiazole and/or derivatives thereof and/or mercaptobenzimidazole and/or derivatives thereof and, should the situation arise, thiosulphate, whereby the waste waters are treated with an extracting agent comprising salts of aliphatic amines and aliphatic and/or aromatic hydrocarbons.

    摘要翻译: 本发明涉及一种净化含有有机废水的方法,如果出现这种情况,则废水中含有一部分巯基苯并噻唑和/或其衍生物的无机硫化合物,如果出现这种情况,一定比例的苯并噻唑和 或其衍生物和/或其巯基苯并咪唑和/或其衍生物,并且如果出现这种情况,则硫代硫酸盐,由此废水用包含脂族胺和脂族和/或芳族烃的盐的提取剂处理。

    Method for producing bisphenols
    6.
    发明授权
    Method for producing bisphenols 失效
    生产双酚的方法

    公开(公告)号:US06858758B2

    公开(公告)日:2005-02-22

    申请号:US10196868

    申请日:2002-07-16

    CPC分类号: C07C37/20 C07C37/16 C07C39/16

    摘要: A method for producing a bisphenol is disclosed. The method entails reacting in at least one first reactant selected from a first group consisting of phenol and substituted phenols with at least one second reactant selected from a second group consisting of ketones and diols, in the presence of hydrogen chloride catalyst and volatile sulphur compound having an SH bond as co-catalyst. The reaction product is a mixture that contains bisphenol, first reactant and second reactant. The catalyst and co-catalyst and water of reaction are separated by distillation. The method is characterized by the high reaction rates and selectivities.

    摘要翻译: 公开了一种生产双酚的方法。 该方法需要在至少一种选自苯酚和取代酚的第一组中的至少一种第一反应物与至少一种选自酮和二醇的第二组反应物的反应中,在氯化氢催化剂和挥发性硫化合物的存在下反应, SH键作为助催化剂。 反应产物是含有双酚,第一反应物和第二反应物的混合物。 通过蒸馏分离催化剂和助催化剂和反应水。 该方法的特征在于高反应速率和选择性。