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162 条记录 (耗时 0.015 秒)

    Dioxane removal from ether sulfate
    11.
    发明授权
    Dioxane removal from ether sulfate 失效
    从乙醚硫酸盐除去二恶烷

    公开(公告)号：US4285881A

    公开(公告)日：1981-08-25

    申请号：US138052

    申请日：1980-04-07

    申请人： Kang Yang

    发明人： Kang Yang

    IPC分类号： C07C41/34 ,  C07C303/42 ,  C07C305/06 ,  C07C141/02

    CPC分类号： C07C303/42

    摘要： Dioxane impurities in ether sulfates are removed by using a novel steam stripping technique in which water is neither added to nor removed from ether sulfate. This is possible because the chemical potential of water in the vapor phase is kept at the same value as that of water in the solution phase. In this way, thickening and foaming are avoided while dioxane levels can be reduced to below 10 parts per million by weight in a single pass.

    摘要翻译： 通过使用新的蒸汽汽提技术除去乙醚硫酸盐中的二恶烷杂质，其中不向乙醚中加入水或从其中除去水。 这是可能的，因为气相中的水的化学势保持在与溶液相中的水相同的值。 以这种方式，避免了增稠和发泡，而单次通过时，二恶烷含量可以降至10重量份以下。

    Separation of sulphonic acids from the medium in which they are prepared
    12.
    发明授权
    Separation of sulphonic acids from the medium in which they are prepared 失效
    从制备它们的介质中分离出磺酸

    公开(公告)号：US4233236A

    公开(公告)日：1980-11-11

    申请号：US972726

    申请日：1978-12-26

    申请人： Rene Kern ,  Daniel Augustin

    发明人： Rene Kern ,  Daniel Augustin

    IPC分类号： C07C309/02 ,  C07C20060101 ,  C07C67/00 ,  C07C301/00 ,  C07C303/14 ,  C07C303/42 ,  C07C139/00 ,  C07C143/24

    CPC分类号： C07C303/42

    摘要： A process for the separation of sulphonated paraffins from their sulphonation medium, which comprises neutralization of the sulphuric acid present and separation into two phases, the lower phase containing the sulphate. The neutralization is carried out in such a way that only a part of the sulphuric acid is neutralized. A hydrocarbon is added, which dissolves the sulphonated and non-sulphonated paraffins and forms with water, an azeotropic mixture which is distilled in order to remove all or a part of the water present. The process allows the separation of sulphonates which are purer than in the past and which are poor in sulphates, while the sulphate layer contains only very little sulphonic acid.

    摘要翻译： 从其磺化介质中分离磺化石蜡的方法，其包括中和存在的硫酸和分离成两相，含有硫酸盐的下层。 中和以这样的方式进行，即只有一部分硫酸被中和。 加入烃，其溶解磺化和非磺化的链烷烃并与水形成，共沸混合物被蒸馏以除去存在的全部或部分水。 该方法允许分离比过去更纯且硫酸盐不良的磺酸盐，而硫酸盐层仅含有极少量的磺酸。

    Bleaching olefin sulfonates with phosphate and peroxide
    13.
    发明授权
    Bleaching olefin sulfonates with phosphate and peroxide 失效
    用磷酸盐和过氧化物漂洗烯烃磺酸盐

    公开(公告)号：US4185034A

    公开(公告)日：1980-01-22

    申请号：US903396

    申请日：1978-05-08

    申请人： Kazuo Yamamoto ,  Shizuo Sekiguchi ,  Yozo Miyawaki

    发明人： Kazuo Yamamoto ,  Shizuo Sekiguchi ,  Yozo Miyawaki

    IPC分类号： C07C303/42 ,  C07C143/02

    CPC分类号： C07C303/42

    摘要： A method of bleaching olefin sulfonates, which comprises adding more than 0.1% by weight of hydrogen peroxide, with more than 0.1% by weight of phosphate alone or silicate alone or a mixture of the two, to an olefin sulfonate having 12 to 22 carbon atoms, and treating at a temperature in the range of from 30.degree. to 130.degree. C.

    摘要翻译： 一种漂白烯烃磺酸盐的方法，其包括将大于0.1重量％的过氧化氢与单独的0.1重量％以上的单独的硅酸盐或两者的混合物加入到具有12-22个碳原子的烯烃磺酸盐 ，并在30〜130℃的温度下进行处理。

    Purification of crude sulfonic acids
    15.
    发明授权
    Purification of crude sulfonic acids 失效
    粗制磺酸的纯化

    公开(公告)号：US3927081A

    公开(公告)日：1975-12-16

    申请号：US33385773

    申请日：1973-02-26

    申请人： CONTINENTAL OIL CO

    发明人： THOMAS JR SAMUEL CHARLES ,  CEASE VINCENT JAY

    IPC分类号： C07C309/01 ,  C07C67/00 ,  C07C301/00 ,  C07C303/42 ,  C07C303/44 ,  C07C143/24

    CPC分类号： C07C303/44 ,  C07C309/01 ,  C07C309/31

    摘要： A method of purifying crude, oil-soluble sulfonic acids is disclosed, wherein the method comprises contacting a volatile hydrocarbon solution of crude, oil-soluble sulfonic acids with 2methoxyethanol or a mixture of water and 2-methoxyethanol. Primarily, the term ''''purifying'''' means removal of sulfuric acid and sulfur oxides.

    摘要翻译： 公开了一种纯化粗油溶性磺酸的方法，其中所述方法包括使粗油溶性磺酸的挥发性烃溶液与2-甲氧基乙醇或水与2-甲氧基乙醇的混合物接触。 首先，术语“纯化”是指除去硫酸和硫氧化物。