METHOD FOR SYNTHESISING TRIFLUOROETHYLENE FROM CHLOROTRIFLUOROETHYLENE
    1.
    发明申请
    METHOD FOR SYNTHESISING TRIFLUOROETHYLENE FROM CHLOROTRIFLUOROETHYLENE 有权
    从氯仿三氟乙烯合成三氟乙烯的方法

    公开(公告)号:US20150094432A1

    公开(公告)日:2015-04-02

    申请号:US14381247

    申请日:2013-02-22

    Applicant: ARKEMA FRANCE

    Abstract: The present invention relates to the preparation of trifluoroethylene (VF3 or TrFE) by hydrogenolysis of chlorotrifluoroethylene (CTFE) in the gaseous phase over a group VIII metal catalyst deposited on a support. This method can be used to obtain VF3 in an economical manner in conditions which minimize the risk of explosion of this molecule. Using a catalyst containing a group VIII metal and, more specifically, containing Pd deposited on a support and a specific series of steps of separation and purification makes it possible to obtain excellent CTFE conversion rates and high selectivity in VF3 at atmospheric pressure and at low temperatures.

    Abstract translation: 本发明涉及通过在沉积在载体上的VIII族金属催化剂上在气相中氢氯三氟乙烯(CTFE)的氢解制备三氟乙烯(VF3或TrFE)。 该方法可以以最小化该分子的爆炸危险的条件经济地获得VF3。 使用含有VIII族金属的催化剂,更具体地说,含有沉积在载体上的Pd和特定的一系列分离和纯化步骤使得可以在常压和低温下获得优异的CTFE转化率和VF3的高选择性 。

    Method for preparing organic peroxides

    公开(公告)号:US09758479B2

    公开(公告)日:2017-09-12

    申请号:US14910937

    申请日:2014-07-09

    Applicant: ARKEMA FRANCE

    Abstract: A method for preparing peroxide, including a step of treating, in a reaction medium, a component having at least one tertiary alcohol grouping with a compound having at least one tertiary hydroperoxide function in the presence of a catalyst, said method being characterized in that the catalyst includes a sulphonic acid and a inorganic acid, the molar ratio between the sulphonic acid and the aforementioned component including at least one tertiary alcohol grouping ranges from 0.05 to 0.8, and the molar ratio between the inorganic acid and the aforementioned component including at least one tertiary alcohol grouping ranges from 0.05 to 0.8. Also, to the peroxide resulting directly from said preparation method.

    Synthesis of organic peroxydes using an oscillatory flow mixing reactor

    公开(公告)号:US10449509B2

    公开(公告)日:2019-10-22

    申请号:US15768684

    申请日:2016-10-26

    Applicant: Arkema France

    Abstract: The present invention concerns a method and an apparatus (10, 20) for a continuous preparation of organic peroxides, with the reactor comprising at least one flow channel (1, 1a, 1b) configured as a reaction zone; an inlet system (2) in fluid communication with a first end of the at least one flow channel and configured for introducing two or more substances or a combination of substances into the at least one flow channel; an outlet system (3) in fluid communication with a second end of the at least one flow channel, the second end being located downstream of the first end and the outlet system being configured for extracting a reaction product present at the second end; an oscillatory system (4, 5) configured for superimposing an oscillatory flow on the flow of substances passing through the at least one flow channel, the oscillatory being effected in at least a section of the at least one flow channel; and a controller configured to implement the method by controlling the inlet system to introduce, according to a first time characteristic, at least two substances or a combination of substances into the at least one flow channel, the oscillatory system to superimpose an oscillatory flow on at least a part of the flow of substances passing through the at least one flow channel, and the outlet system to extract, on an ongoing basis, the reaction product formed in the flow channel from the substances introduced such that the output mass flow rate corresponding to the sum of the input mass flow rates.

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