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    Process for producing low color glycols
    1.
    发明授权
    Process for producing low color glycols 有权
    生产低级二醇的方法

    公开(公告)号：US08293949B2

    公开(公告)日：2012-10-23

    申请号：US12613144

    申请日：2009-11-05

    申请人： Zdravko I. Stefanov ,  Jean Paul Chauvel, Jr. ,  Abraham Gonzalez ,  Istvan Lengyel

    发明人： Zdravko I. Stefanov ,  Jean Paul Chauvel, Jr. ,  Abraham Gonzalez ,  Istvan Lengyel

    IPC分类号： C07C31/20

    CPC分类号： C07C29/106 ,  C07C29/88 ,  C07C31/20

    摘要： The present invention provides a process for producing low color glycols that comprises altering at least one condition of a reaction component and/or process stream within the process to be unfavorable for the formation of at least one color-producing contaminant intermediate. As such, such intermediates may be reduced in concentration, or even eliminated entirely, from glycols produced by the process. Since they are not present, or are present in reduced number, the intermediates cannot form color-producing contaminants in the glycols, and low color glycols are provided to the customer. Any condition that can discourage the formation of color forming contaminant intermediates can be adjusted, although conditions that can be adjusted by materials or equipment already utilized in the process, e.g., temperature, pressure, pH, concentration of a color-forming contaminant precursor, the presence of one or more solvents or catalysts favorable for the production of the color-producing contaminant or contaminant intermediate, and the like, are preferred.

    摘要翻译： 本发明提供了一种生产低级二醇的方法，其包括改变该方法中的反应组分和/或工艺流的至少一种状态，从而不利于形成至少一种产生颜色的污染物中间体。 因此，这种中间体可以从由该方法生产的二醇产生的浓度降低甚至完全消除。 由于它们不存在或以减少的数量存在，所以中间体不能在二醇中形成产生颜色的污染物，并且向客户提供低级二醇。 可以调节可以阻止形成成色污染物中间体形成的任何条件，尽管可以通过已经在该方法中使用的材料或设备例如温度，压力，pH，成色污染物前体的浓度， 优选存在一种或多种有利于生产发色污染物或污染物中间体的溶剂或催化剂等。

    PROCESS FOR PRODUCING LOW COLOR GLYCOLS
    2.
    发明申请
    PROCESS FOR PRODUCING LOW COLOR GLYCOLS 有权
    生产低色甘蓝的方法

    公开(公告)号：US20100121113A1

    公开(公告)日：2010-05-13

    申请号：US12613144

    申请日：2009-11-05

    申请人： Zdravko I. Stefanov ,  Jean Paul Chauvel, JR. ,  Abraham Gonzalez ,  Istvan Lengyel

    发明人： Zdravko I. Stefanov ,  Jean Paul Chauvel, JR. ,  Abraham Gonzalez ,  Istvan Lengyel

    IPC分类号： C07C31/20

    CPC分类号： C07C29/106 ,  C07C29/88 ,  C07C31/20

    摘要： The present invention provides a process for producing low color glycols that comprises altering at least one condition of a reaction component and/or process stream within the process to be unfavorable for the formation of at least one color-producing contaminant intermediate. As such, such intermediates may be reduced in concentration, or even eliminated entirely, from glycols produced by the process. Since they are not present, or are present in reduced number, the intermediates cannot form color-producing contaminants in the glycols, and low color glycols are provided to the customer. Any condition that can discourage the formation of color forming contaminant intermediates can be adjusted, although conditions that can be adjusted by materials or equipment already utilized in the process, e.g., temperature, pressure, pH, concentration of a color-forming contaminant precursor, the presence of one or more solvents or catalysts favorable for the production of the color-producing contaminant or contaminant intermediate, and the like, are preferred.

    摘要翻译： 本发明提供了一种生产低级二醇的方法，其包括改变该方法中的反应组分和/或工艺流的至少一种状态，从而不利于形成至少一种产生颜色的污染物中间体。 因此，这种中间体可以从由该方法生产的二醇产生的浓度降低甚至完全消除。 由于它们不存在或以减少的数量存在，所以中间体不能在二醇中形成产生颜色的污染物，并且向客户提供低级二醇。 可以调节可以阻止形成成色污染物中间体形成的任何条件，尽管可以通过已经在该方法中使用的材料或设备例如温度，压力，pH，成色污染物前体的浓度， 优选存在一种或多种有利于生产发色污染物或污染物中间体的溶剂或催化剂等。

    TOTAL ORGANIC CARBON (TOC) REDUCTION IN BRINE VIA CHLORINOLYSIS
    6.
    发明申请
    TOTAL ORGANIC CARBON (TOC) REDUCTION IN BRINE VIA CHLORINOLYSIS 审中-公开
    总有机碳（TOC）通过氯化锌在锌中的还原

    公开(公告)号：US20100193443A1

    公开(公告)日：2010-08-05

    申请号：US12670142

    申请日：2008-08-18

    申请人： Sunil K. Chaudhary ,  Bruce Hook ,  Christopher P. Christenson ,  Chauvel J. Jean ,  David West ,  Steve Gluck ,  Celio Lume Pereira ,  Istvan Lengyel ,  Frank Koester

    发明人： Sunil K. Chaudhary ,  Bruce Hook ,  Christopher P. Christenson ,  Chauvel J. Jean ,  David West ,  Steve Gluck ,  Celio Lume Pereira ,  Istvan Lengyel ,  Frank Koester

    IPC分类号： C02F9/04 ,  C02F1/42 ,  C02F1/76 ,  C02F101/30

    CPC分类号： C01D3/14 ,  C01B11/062 ,  C01D3/16

    摘要： A plurality of stages is employed to reduce the total organic carbon (TOC) content of a brine by-product stream to produce a recyclable brine stream having a TOC content of less than about 10 ppm. In a first stage treatment, a brine by-product stream may be subjected to chlorinolysis at a temperature of less than about 125 0C to obtain a chlorinolysis product having a TOC content of less than about 100 ppm, which may be treated in a second stage with activated carbon to obtain a TOC content of less than about 10 ppm. The chlorinolysis may be a reaction with sodium hypochlorite, which may be produced in situ by treatment of the brine by-product stream with chlorine gas and sodium hydroxide. The brine by-product stream may contain a high amount of difficult to remove glycerin, such as a brine by-product stream from the production of epichlorohydrin from glycerin.

    摘要翻译： 采用多个阶段来降低盐水副产物流的总有机碳（TOC）含量，以产生TOC含量小于约10ppm的可再循环盐水。 在第一阶段处理中，盐水副产物流可以在小于约125℃的温度下进行氯解，得到TOC含量小于约100ppm的氯解产物，其可以在第二阶段 用活性炭获得小于约10ppm的TOC含量。 氯解可能是次氯酸钠的反应，其可以通过用氯气和氢氧化钠处理盐水副产物流而原位产生。 盐水副产物流可能含有大量难以除去甘油，例如从丙三醇生产表氯醇的盐水副产物流。