PROCESS FRO SEPARATION OF A MIXTURE COMPRISING AT LEAST ONE HYDROFLUOROALKANE
    2.
    发明申请
    PROCESS FRO SEPARATION OF A MIXTURE COMPRISING AT LEAST ONE HYDROFLUOROALKANE 有权
    一种包含至少一个氢氟烷烃的混合物的工艺冷却分离

    公开(公告)号:US20080033219A1

    公开(公告)日:2008-02-07

    申请号:US11753970

    申请日:2007-05-25

    IPC分类号: C07C17/08

    摘要: Process for the separation of a mixture comprising at least one hydrofluoroalkane and hydrogen fluoride, according to which a hydrofluoroalkane/hydrogen fluoride mixture is reacted with at least one chlorinated or chlorofluorinated precursor of the hydrofluoroalkane. Process for the preparation of a hydrofluoroalkane comprising such a separation, in combination with a catalytic reaction stage. Azeotropic compositions.

    摘要翻译: 用于分离包含至少一种氢氟烷烃和氟化氢的混合物的方法,根据该方法,将氢氟烷烃/氟化氢混合物与氢氟烷烃的至少一种氯化或氯氟化前体反应。 制备包含这种分离的氢氟烷烃与催化反应阶段组合的方法。 共沸组合物。

    Process for chemical synthesis from an alkenone made from a halogenated precursor
    5.
    发明授权
    Process for chemical synthesis from an alkenone made from a halogenated precursor 有权
    由卤化前体制成的烯酮进行化学合成的方法

    公开(公告)号:US08957254B2

    公开(公告)日:2015-02-17

    申请号:US14046171

    申请日:2013-10-04

    摘要: Process for synthesizing a chemical, in particular an agriculturally or pharmaceutically active compound, including: a first step comprising reacting a carboxylic acid halide with a vinyl ether to prepare a halogenated precursor of an alkenone; a second step comprising eliminating hydrogen halide from such precursor to form an alkenone, preferably by thermolysis under specific conditions; and a third step which uses the formed alkenone as a building block to synthesize the chemical. First step may be done in a liquid reaction medium comprising an alkenone or a halogenated alkenone precursor, or in a liquid reaction medium in turbulent state, specifically by creation of gas bubbles of the carboxylic acid halide herein. Second step may include a flash thermolysis, vacuum thermolysis, thermolysis under stripping with inert gas, and/or a thermolysis at a temperature from >90° C. to 120° C. Third step preferably comprises reacting the alkenone with a nitrogen-containing compound.

    摘要翻译: 用于合成化学品,特别是农业或药学活性化合物的方法,包括:第一步,包括使羧酸卤化物与乙烯基醚反应以制备烯酮的卤化前体; 第二步,包括从这种前体消除卤化氢以形成烯酮,优选通过在特定条件下的热解; 和使用形成的烯酮作为结构单元合成化学品的第三步骤。 第一步可以在包含烯酮或卤代烯酮前体的液体反应介质中或在湍流状态的液体反应介质中,特别是通过产生本文中的羧酸卤化物的气泡进行。 第二步骤可以包括闪蒸热解,真空热解,用惰性气体汽提时的热解,和/或在> 90℃至120℃的温度下的热解。第三步优选包括使烯酮与含氮化合物 。

    Process for obtaining a purified hydrofluoroalkane
    6.
    发明授权
    Process for obtaining a purified hydrofluoroalkane 失效
    获得纯化氢氟烷烃的方法

    公开(公告)号:US07750195B2

    公开(公告)日:2010-07-06

    申请号:US12341396

    申请日:2008-12-22

    IPC分类号: C07C17/38

    摘要: Process for obtaining a hydrofluoroalkane which is purified of organic impurities, according to which the hydrofluoroalkane containing organic impurities is subjected to at least one purification treatment chosen from (a) a treatment with chlorine in the presence of a initiator (b) a reaction with hydrogen fluoride (c) a distillation in which the purified hydrofluoroalkane is removed from the top of the distillation column or from the side (d) an extractive distillation (e) an adsorption onto a solid adsorbent (f) a reaction with a compound containing oxygen, and (g) a reaction with a compound containing oxygen and a gas-phase reaction with a reagent capable of reacting with at least some of the organic impurities, with the exception of a reaction with elemental chlorine.

    摘要翻译: 用于获得纯化有机杂质的氢氟烷烃的方法,根据该方法,含有有机杂质的氢氟烷烃经受至少一种纯化处理,选自(a)在引发剂存在下用氯处理(b)与氢的反应 氟化物(c)蒸馏,其中纯化的氢氟烷烃从蒸馏塔的顶部或从侧面(d)中提取蒸馏(e)吸附到固体吸附剂上(f)与含氧化合物的反应, 和(g)除了与元素氯的反应之外,与含有氧的化合物和能与至少一些有机杂质反应的试剂进行气相反应的反应。

    Process for separation of a mixture comprising at least one hydrofluoroalkane
    7.
    发明授权
    Process for separation of a mixture comprising at least one hydrofluoroalkane 有权
    用于分离包含至少一种氢氟烷烃的混合物的方法

    公开(公告)号:US07566809B2

    公开(公告)日:2009-07-28

    申请号:US11753970

    申请日:2007-05-25

    IPC分类号: C07C17/20

    摘要: Process for the separation of a mixture comprising at least one hydrofluoroalkane and hydrogen fluoride, according to which a hydrofluoroalkane/hydrogen fluoride mixture is reacted with at least one chlorinated or chlorofluorinated precursor of the hydrofluoroalkane. Process for the preparation of a hydrofluoroalkane comprising such a separation, in combination with a catalytic reaction stage. Azeotropic compositions.

    摘要翻译: 用于分离包含至少一种氢氟烷烃和氟化氢的混合物的方法,根据该方法,将氢氟烷烃/氟化氢混合物与氢氟烷烃的至少一种氯化或氯氟化前体反应。 制备包含这种分离的氢氟烷烃与催化反应阶段组合的方法。 共沸组合物。

    Measurement of angles
    8.
    发明授权
    Measurement of angles 失效
    角度测量

    公开(公告)号:US3937067A

    公开(公告)日:1976-02-10

    申请号:US510022

    申请日:1974-09-27

    摘要: Angles and angular displacements of ultrasonic beams are measured by using a probe to transmit the beam to a point on a surface, particularly the surface of material being subjected to non-destructive examination, from which the beam is reflected to a receiving probe which may or may not be the same device as the transmitting probe. The length of the path traversed by the beam is varied in accordance with a relationship determined as a function of the angular displacement of the beam from an axis normal to the surface, and the time taken to traverse the path is detected. The variation in the length of the path may be effected by adjusting the separation of the transmitting probe from the surface while the probe is being angularly adjusted to vary the angular displacement of the beam, a fixed mirror being provided to return the beam by way of the point to the probe. Alternatively an angularly adjustable transmitting probe may direct the beam to the point and a separate probe which is both axially and angularly adjustable arranged to receive the relfected beam. In a third alternative, the transmitting probe directs the beam to the point by way of an adjustable mirror, a fixed mirror being arranged to return the beam by way of the point and the adjustable mirror to the probe.

    摘要翻译: 通过使用探针来测量超声波束的角度和角位移,以将光束传输到表面上的点,特别是经受非破坏性检查的材料的表面,光束从该点反射到接收探头,接收探针可以或 可能不是与发射探头相同的设备。 由光束穿过的路径的长度根据根据垂直于表面的轴的光束的角位移确定的关系而变化,并且检测到穿过路径所花费的时间。 路径长度的变化可以通过在探头被角度调整以调整光束的角位移的情况下调节发射探针与表面的间隔来实现,固定镜被提供以通过 指向探针。 或者,角度可调的发射探头可以将光束引导到该点,并且单独的探针被轴向和角度可调地布置成接收受影响的束。 在第三替代方案中,发射探头通过可调节的反射镜将光束引导到该点,固定反射镜被布置成通过点和可调节反射镜将光束返回到探针。

    PROCESS FOR OBTAINING A PURIFIED HYDROFLUOROALKANE
    9.
    发明申请
    PROCESS FOR OBTAINING A PURIFIED HYDROFLUOROALKANE 失效
    获得纯化氢氟烷的方法

    公开(公告)号:US20090099394A1

    公开(公告)日:2009-04-16

    申请号:US12341396

    申请日:2008-12-22

    IPC分类号: C07C19/08

    摘要: Process for obtaining a hydrofluoroalkane which is purified of organic impurities, according to which the hydrofluoroalkane containing organic impurities is subjected to at least one purification treatment chosen from (a) a treatment with chlorine in the presence of a initiator (b) a reaction with hydrogen fluoride (c) a distillation in which the purified hydrofluoroalkane is removed from the top of the distillation column or from the side (d) an extractive distillation (e) an adsorption onto a solid adsorbent (f) a reaction with a compound containing oxygen, and (g) a reaction with a compound containing oxygen and a gas-phase reaction with a reagent capable of reacting with at least some of the organic impurities, with the exception of a reaction with elemental chlorine.

    摘要翻译: 用于获得纯化有机杂质的氢氟烷烃的方法,根据该方法,含有有机杂质的氢氟烷烃经受至少一种纯化处理,选自(a)在引发剂存在下用氯处理(b)与氢的反应 氟化物(c)蒸馏,其中纯化的氢氟烷烃从蒸馏塔的顶部或从侧面(d)中提取蒸馏(e)吸附到固体吸附剂上(f)与含氧化合物的反应, 和(g)除了与元素氯的反应之外,与含有氧的化合物和能与至少一些有机杂质反应的试剂进行气相反应的反应。