NYLON EXTRACTION FROM COMMINGLED MATERIALS
    6.
    发明申请
    NYLON EXTRACTION FROM COMMINGLED MATERIALS 有权
    尼龙从商品材料中提取

    公开(公告)号:US20100228000A1

    公开(公告)日:2010-09-09

    申请号:US12397048

    申请日:2009-03-03

    IPC分类号: C08G69/08

    摘要: The present invention provides energetically and economically efficient methods for separating polyamide polymer(s) from commingled materials. The methods generally involve precipitating a polyamide polymer dissolved in a solvent (e.g., formic acid) using dimethyl ether (DME) as an antisolvent. The methods comprise dissolving the polyamide polymer in a solvent that (i) selectively dissolves the polyamide polymer relative to the other materials and (ii) has a higher solubility for DME relative to the polyamide polymer; and then contacting the mixture of the solvent with the dissolved polyamide polymer with DME, thereby precipitating the polyamide polymer.

    摘要翻译: 本发明提供了用于将聚酰胺聚合物与混合材料分离的能量和经济有效的方法。 所述方法通常涉及使用二甲醚(DME)作为反溶剂使溶解在溶剂(例如甲酸)中的聚酰胺聚合物沉淀。 所述方法包括将聚酰胺聚合物溶解在溶剂中,(i)相对于其它材料选择性地溶解聚酰胺聚合物,和(ii)相对于聚酰胺聚合物具有较高的DME溶解度; 然后将溶剂与溶解的聚酰胺聚合物的混合物与DME接触,从而沉淀聚酰胺聚合物。

    Energy Efficient Separation of Ethanol From Aqueous Solution
    8.
    发明申请
    Energy Efficient Separation of Ethanol From Aqueous Solution 失效
    从水溶液中高效分离乙醇

    公开(公告)号:US20100069686A1

    公开(公告)日:2010-03-18

    申请号:US12300694

    申请日:2008-05-15

    IPC分类号: C07C29/74 F25J3/00

    摘要: The present invention provides methods and systems for extracting ethanol from an ethanol-water solution comprising (1) extracting ethanol from an ethanol-water solution with a first solvent comprising an esterified fatty acid, wherein the esterified fatty acid comprises a hydroxylated fatty acid component and an alcohol component such that the alcohol component is a C3-6 alcohol, such that the distribution coefficient for ethanol in the mixture of the ethanol-water solution and the first solvent is at least 0.02 favoring the transfer of ethanol from the ethanol-water solution to the first solvent, thereby extracting the ethanol from the ethanol-water solution into the first solvent, and (2) extracting the ethanol-enriched first solvent with carbon dioxide, such that the carbon dioxide is at a liquid or near supercritical phase, wherein the distribution coefficient for ethanol in a mixture of the first solvent and the carbon dioxide is at least 0.1 favoring the transfer of ethanol from the first solvent to the carbon dioxide.

    摘要翻译: 本发明提供从乙醇 - 水溶液中提取乙醇的方法和系统,其包括(1)用乙醇 - 水溶液从含有酯化脂肪酸的第一溶剂中提取乙醇,其中酯化脂肪酸包含羟基化脂肪酸组分和 醇组分使得醇组分为C 3-6醇,使得乙醇 - 水溶液和第一溶剂的混合物中乙醇的分配系数为至少0.02,有利于从乙醇 - 水溶液中转移乙醇 从而将乙醇从乙醇 - 水溶液中提取到第一溶剂中,(2)用二氧化碳萃取富含乙醇的第一溶剂,使得二氧化碳处于液体或接近超临界相,其中 在第一溶剂和二氧化碳的混合物中乙醇的分配系数至少为0.1,有利于乙醇的转移 第一溶剂至二氧化碳。

    Nylon extraction from commingled materials
    10.
    发明授权
    Nylon extraction from commingled materials 有权
    从混合材料中提取尼龙

    公开(公告)号:US08071656B2

    公开(公告)日:2011-12-06

    申请号:US12397048

    申请日:2009-03-03

    IPC分类号: C08J11/04

    摘要: The present invention provides energetically and economically efficient methods for separating polyamide polymer(s) from commingled materials. The methods generally involve precipitating a polyamide polymer dissolved in a solvent (e.g., formic acid) using dimethyl ether (DME) as an antisolvent. The methods comprise dissolving the polyamide polymer in a solvent that (i) selectively dissolves the polyamide polymer relative to the other materials and (ii) has a higher solubility for DME relative to the polyamide polymer; and then contacting the mixture of the solvent with the dissolved polyamide polymer with DME, thereby precipitating the polyamide polymer.

    摘要翻译: 本发明提供了用于将聚酰胺聚合物与混合材料分离的能量和经济有效的方法。 所述方法通常涉及使用二甲醚(DME)作为反溶剂使溶解在溶剂(例如甲酸)中的聚酰胺聚合物沉淀。 所述方法包括将聚酰胺聚合物溶解在溶剂中,(i)相对于其它材料选择性地溶解聚酰胺聚合物,和(ii)相对于聚酰胺聚合物具有较高的DME溶解度; 然后将溶剂与溶解的聚酰胺聚合物的混合物与DME接触,从而沉淀聚酰胺聚合物。