METHOD FOR EVAPORATING COMPONENTS OF A LIQUID
    2.
    发明申请
    METHOD FOR EVAPORATING COMPONENTS OF A LIQUID 有权
    用于蒸发液体组分的方法

    公开(公告)号:US20090287009A1

    公开(公告)日:2009-11-19

    申请号:US12446959

    申请日:2007-11-02

    IPC分类号: C07F7/12 B01D1/00

    CPC分类号: B01D1/0017

    摘要: Mixtures containing high boiling and low boiling components, at least one component being dissociatable into ions, are separated effectively by heating by passing an alternating electrical current through the mixture. The process is particularly effective in the workup of crude alkylchlorosilanes from the direct synthesis.

    摘要翻译: 含有高沸点和低沸点组分的混合物,至少一种可离解成离子的组分通过使交流电流通过混合物而被加热而被有效地分离。 该方法在直接合成粗烷基氯硅烷的后处理中特别有效。

    Process for the regeneration of sulfuric acid
    3.
    发明授权
    Process for the regeneration of sulfuric acid 有权
    硫酸再生方法

    公开(公告)号:US07842272B2

    公开(公告)日:2010-11-30

    申请号:US12090140

    申请日:2006-10-06

    IPC分类号: C01B17/74 C01B17/90

    CPC分类号: C01B17/905

    摘要: Sulfuric acid contaminated with byproducts of chloromethane scrubbing is regenerated for reuse in the scrubbing process by diluting with water to not lower than about a 55 weight percent concentration, heating the diluted acid to boiling at not more than about 135° C., concentrating the acid to a concentration of minimally 80 weight percent at a temperature of at least 170° C., and reacting the concentrated acid with an oxidizing agent.

    摘要翻译: 用氯甲烷洗涤副产物污染的硫酸在洗涤过程中再次被再次用水稀释至不低于55重量百分比浓度,将稀酸加热至沸点不超过约135℃,浓缩酸 在至少170℃的温度下达到最低80重量%的浓度,并使浓酸与氧化剂反应。

    Process For The Preparation Of Chloromethane Using Recycled Hydrogen Chloride
    4.
    发明申请
    Process For The Preparation Of Chloromethane Using Recycled Hydrogen Chloride 有权
    使用循环氯化氢制备氯甲烷的方法

    公开(公告)号:US20080287716A1

    公开(公告)日:2008-11-20

    申请号:US12119564

    申请日:2008-05-13

    IPC分类号: C07C17/35

    CPC分类号: C07C17/16 C07C19/03

    摘要: The invention relates to a process for the preparation of chloromethane from methanol and hydrogen chloride contaminated with Si compounds, the Si compounds being methylchlorosilanes, methoxymethylsilanes and hydrolysis and condensation products thereof, in which some of the Si compounds are removed by condensation from the chloromethane formed and remaining Si compounds are washed out with methanol, the methanol thus obtained and containing Si compounds being used for the further preparation of chloromethane with hydrogen chloride.

    摘要翻译: 本发明涉及一种由甲烷和四氯化锡污染的氯化氢制备氯甲烷的方法,其中Si化合物是甲基氯硅烷,甲氧基甲基硅烷及其水解和缩合产物,其中一些Si化合物通过从形成的氯甲烷的冷凝中除去 用甲醇洗涤剩余的Si化合物,由此得到的含有Si化合物的甲醇用于用氯化氢进一步制备氯甲烷。

    Process for the preparation of chloromethane using recycled hydrogen chloride
    6.
    发明授权
    Process for the preparation of chloromethane using recycled hydrogen chloride 有权
    使用再循环氯化氢制备氯甲烷的方法

    公开(公告)号:US07816569B2

    公开(公告)日:2010-10-19

    申请号:US12119564

    申请日:2008-05-13

    IPC分类号: C07C17/00

    CPC分类号: C07C17/16 C07C19/03

    摘要: The invention relates to a process for the preparation of chloromethane from methanol and hydrogen chloride contaminated with Si compounds, the Si compounds being methylchlorosilanes, methoxymethylsilanes and hydrolysis and condensation products thereof, in which some of the Si compounds are removed by condensation from the chloromethane formed and remaining Si compounds are washed out with methanol, the methanol thus obtained and containing Si compounds being used for the further preparation of chloromethane with hydrogen chloride.

    摘要翻译: 本发明涉及一种由甲烷和四氯化锡污染的氯化氢制备氯甲烷的方法,其中Si化合物是甲基氯硅烷,甲氧基甲基硅烷及其水解和缩合产物,其中一些Si化合物通过从形成的氯甲烷的冷凝中除去 用甲醇洗涤剩余的Si化合物,由此得到的含有Si化合物的甲醇用于用氯化氢进一步制备氯甲烷。

    Process for the Regeneration of Sulfuric Acid
    7.
    发明申请
    Process for the Regeneration of Sulfuric Acid 有权
    硫酸再生方法

    公开(公告)号:US20080293979A1

    公开(公告)日:2008-11-27

    申请号:US12090140

    申请日:2006-10-06

    IPC分类号: C07C17/395 C01B17/90

    CPC分类号: C01B17/905

    摘要: Sulfuric acid contaminated with byproducts of chloromethane scrubbing is regenerated for reuse in the scrubbing process by diluting with water to not lower than about a 55 weight percent concentration, heating the diluted acid to boiling at not more than about 135° C., concentrating the acid to a concentration of minimally 80 weight percent at a temperature of at least 170° C., and reacting the concentrated acid with an oxidizing agent.

    摘要翻译: 用氯甲烷洗涤副产物污染的硫酸在洗涤过程中再次被再次用水稀释至不低于55重量百分比浓度,将稀酸加热至沸点不超过约135℃,浓缩酸 在至少170℃的温度下达到最低80重量%的浓度,并使浓酸与氧化剂反应。