Treatment of fluorocarbon feedstocks
    1.
    发明授权
    Treatment of fluorocarbon feedstocks 失效
    氟碳原料的处理

    公开(公告)号:US07166198B2

    公开(公告)日:2007-01-23

    申请号:US10203252

    申请日:2001-02-09

    IPC分类号: B01J19/08

    摘要: A method of treating a fluorocarbon feedstock includes generating, in a high temperature zone, an electrical arc between at least one cathode and at least one anode, generating in the high temperature zone and by means of the electrical arc and a plasma gas, a thermal plasma having a tail flame, allowing a fluorocarbon feedstock comprising at least one fluorocarbon compound to form a reactive thermal mixture with the thermal plasma tail flame, with the fluorocarbon compound dissociating into at least one fluorocarbon precursor or reactive species having fewer carbon atoms than the fluorocarbon compound, and cooling the reactive thermal mixture to form, from the fluorocarbon precursor or reactive species, a fluorocarbon product.

    摘要翻译: 一种处理氟碳原料的方法包括在高温区域中在至少一个阴极和至少一个阳极之间产生电弧,在高温区域中产生电弧,并通过电弧和等离子体气体产生热 具有尾焰的等离子体,允许包含至少一种碳氟化合物的碳氟化合物原料与热等离子体尾焰形成反应性热混合物,其中氟碳化合物解离成至少一种氟碳前体或具有比碳氟化碳少的碳原子的反应性物质 并且将反应性热混合物冷却从碳氟化合物前体或反应性物质形成碳氟化合物产物。

    Treatment of fluorocarbon feedstocks
    2.
    发明授权
    Treatment of fluorocarbon feedstocks 失效
    氟碳原料的处理

    公开(公告)号:US07252744B2

    公开(公告)日:2007-08-07

    申请号:US10203527

    申请日:2001-02-09

    IPC分类号: B01J19/08

    摘要: A method of treating a fluorocarbon feedstock includes generating, in a high temperature zone, an electrical arc between at least one cathode and at least one anode, generating in the high temperature zone and by means of the electrical arc and a plasma gas, an upwardly burning thermal plasma having a tail flame, allowing a solid particulate fluorocarbon feedstock comprising at least on fluorocarbon compound to form a reactive thermal mixture with the thermal plasma tail flame, with the fluorocarbon compound dissociating into at least one fluorocarbon precursor or reactive species, and cooling the reactive thermal mixture to form, from the fluorocarbon precursor of reactive species, at least one more desirable fluorocarbon compound.

    摘要翻译: 处理碳氟化合物原料的方法包括在高温区域中,在至少一个阴极和至少一个阳极之间产生电弧,在高温区域中产生电弧,通过电弧和等离子体气体产生向上 燃烧具有尾焰的热等离子体,允许至少包含氟碳化合物的固体颗粒状碳氟化合物原料与热等离子体尾焰形成反应性热混合物,氟碳化合物解离成至少一种氟碳前体或反应性物质,并冷却 反应性热混合物从反应性物质的碳氟前体形成至少一种更理想的碳氟化合物。

    METHOD OF MAKING FLUOROPOLYMER DISPERSION
    8.
    发明申请
    METHOD OF MAKING FLUOROPOLYMER DISPERSION 有权
    制备氟聚合物分散体的方法

    公开(公告)号:US20070015864A1

    公开(公告)日:2007-01-18

    申请号:US11420386

    申请日:2006-05-25

    IPC分类号: C08L27/12

    摘要: A method of making a fluoropolymer dispersion by first providing a fluoropolymer dispersion comprising fluoropolymer particles and one or more fluorinated surfactants selected from fluorinated carboxylic acids or salts thereof having the general formula: [Rf—O-L-COO−]iXi+  (I) wherein L represents a linear partially or fully fluorinated alkylene group or an aliphatic hydrocarbon group, Rf represents a linear partially or fully fluorinated aliphatic group or a linear partially or fully fluorinated aliphatic group interrupted with one or more oxygen atoms, Xi+ represents a cation having the valence i and i is 1, 2 or 3; Then adding one or more non-fluorinated surfactants selected from anionic and non-ionic surfactants followed by reducing the total amount of the one or more fluorinated surfactants to an amount of not more than 500 ppm, for example not more than 250 ppm based on the total weight of the dispersion while maintaining or increasing the amount of solids in the dispersion.

    摘要翻译: 首先提供含氟聚合物颗粒和一种或多种选自氟化羧酸或其盐的含氟表面活性剂的含氟聚合物分散体的制备氟聚合物分散体的方法,所述氟化聚合物分散体具有以下通式:<?in-line-formula description =“In-Line Formulas” (I)结束=“引导”→[R f> OL O> - ))))))))))))))))))))))))) <?in-line-formula description =“In-line formula”end =“tail”?>其中L表示线性部分或完全氟化的亚烷基或脂族烃基,R f表示 线性部分或全氟化的脂族基团或被一个或多个氧原子间隔的线性部分或完全氟化的脂肪族基团,表示i为i且i为1,2或3的阳离子; 然后加入一种或多种选自阴离子和非离子表面活性剂的非氟化表面活性剂,然后将一种或多种氟化表面活性剂的总量减少至不超过500ppm,例如不超过250ppm,基于 分散体的总重量,同时保持或增加分散体中固体的量。

    Fluorinated carboxylic acid fluorides
    10.
    发明授权
    Fluorinated carboxylic acid fluorides 失效
    氟化氟酸氟化物

    公开(公告)号:US4987254A

    公开(公告)日:1991-01-22

    申请号:US389367

    申请日:1989-08-03

    CPC分类号: C07C51/58

    摘要: Fluorinated carboxylic acid fluorides of the formula I ##STR1## can be prepared from fluorinated vinyl ethers of the formula II ##STR2## by reacting the vinyl ethers with an oxygen-containing gas in the presence of a catalytic amount of a Lewis acid. Perfluorinated carboxylic acids and derivatives thereof can be prepared from the carboxylic acid fluorides by secondary reactions, for example hydrolysis, esterification or aminolysis.

    摘要翻译: 式I(I)的氟化羧酸氟化物可以由式II(II)的氟化乙烯基醚通过乙烯基醚与含氧气体在催化量的 路易斯酸。 全氟羧酸及其衍生物可以通过二次反应由羧酸氟化物制备,例如水解,酯化或氨解。