Asymptotic behaviour of matrix coe cients of the discrete series
Asymptotic behaviour of matrix coe cients of the discrete series
复制标题
离散级数矩阵系数的渐近行为
DOI：
10.1215/s0012-7094-77-04403-9
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发表时间：
1977
期刊：
影响因子：
--
通讯作者：
D. Miličić
中科院分区：
文献类型：
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作者：
D. Miličić
在催化剂存在下，使供氯全卤代烃如氟碳化合物133 a在气相中与供氢卤代烃如氟碳化合物113 a反应，以产生第一卤化氟碳化合物产物，其具有比供氯全卤代烃少一个氯和多一个氢，以及比供氢卤代烃少一个氢和多一个氯。优选的催化剂是活性炭，尤其是氧化铬和氟氧化物。诸如氟碳化合物123的产品可用于气雾剂、制冷剂和发泡应用，并作为其他氯氟烃的中间体。
A chlorine-donating perhalogenated hydrocarbon such as fluorocarbon 133a is reacted in the vapor phase with a hydrogen-donating halogenated hydrocarbon such as fluorocarbon 113a in the presence of a catalyst to produce a first halogenated fluorocarbon product with one less chlorine and one more hydrogen than the chlorine donating perhalogenated hydrocarbon and one less hydrogen and one more chlorine than the hydrogen donating halogenated hydrocarbon. Preferred catalysts are activated carbon and especially chromium oxides and oxyfluorides. The products such as fluorocarbon 123 are useful in aerosol, refrigerant and foaming applications, and as intermediates to other chlorofluorocarbons.