Azeotrope-like compositions of 1,1,1,3,3-pentachloropropane and carbon tetrachloride
    95.
    发明授权
    Azeotrope-like compositions of 1,1,1,3,3-pentachloropropane and carbon tetrachloride 有权
    1,1,1,3,3-五氯丙烷和四氯化碳的共沸组合物

    公开(公告)号:US07265082B2

    公开(公告)日:2007-09-04

    申请号:US10911004

    申请日:2004-08-04

    IPC分类号: C11D7/50

    摘要: The invention relates to azeotropic and azeotrope-like mixtures of 1,1,1,3,3-pentachloropropane (HCC-240fa) and carbon tetrachloride and a process for separating the azeotrope-like mixtures. The compositions of the invention are useful as an intermediate in the production of HFC-245fa. The latter is useful as a nontoxic, zero ozone depleting fluorocarbon useful as a solvent, blowing agent, refrigerant, cleaning agent and aerosol propellant.

    摘要翻译: 本发明涉及1,1,1,3,3-五氯丙烷(HCC-240fa)和四氯化碳的共沸和类共沸混合物以及分离共沸混合物的方法。 本发明的组合物可用作HFC-245fa生产中的中间体。 后者可用作无毒,无臭氧消耗的碳氟化合物,可用作溶剂,发泡剂,制冷剂,清洁剂和气溶胶推进剂。

    Method and system for restraining a chemical discharge
    100.
    发明授权
    Method and system for restraining a chemical discharge 有权
    抑制化学物质排放的方法和系统

    公开(公告)号:US08067660B2

    公开(公告)日:2011-11-29

    申请号:US12132751

    申请日:2008-06-04

    IPC分类号: A62D3/30 A62D3/33

    摘要: A method for restraining a chemical discharge comprising (a) deploying a binding agent into a receptacle containing a hazardous material in a liquid state upon the occurrence of at least one predetermined event that increases the risk of accidentally discharging or leaking the hazardous material from the receptacle; and (b) contacting the hazardous material with the binding agent to form a composition comprising at least a portion of the hazardous material and the binding agent and having at least one property selected from a solid or semisolid state, a viscosity greater than the viscosity of the hazardous material at ambient conditions, a vapor pressure lower than the vapor pressure of the hazardous material at ambient conditions, and a surface tension greater that the surface tension of the hazardous material.

    摘要翻译: 一种用于抑制化学放电的方法,包括(a)在发生至少一个预定事件的情况下将粘合剂部署到容纳液态的有害物质的容器中,这增加了从容器意外地排出或泄漏危险材料的风险 ; 和(b)将有害材料与粘合剂接触以形成包含至少一部分有害物质和粘合剂并且具有选自固体或半固体状态的至少一种性质的组合物,其粘度大于 环境条件下的危险物质,低于环境条件下有害物质的蒸气压的蒸汽压,以及大于危险物质表面张力的表面张力。