摘要:
A process for removing carbon dioxide from a fluorocarbon carbon dioxide mixture in which the fluorocarbon carbon dioxide mixture is contacted with a semipermeable polyimide membrane to form at least one exit stream having an increased concentration of carbon dioxide and at least one exit stream having a reduced concentration of carbon dioxide.
摘要:
A process is disclosed for the conversion of halogenated methanes of the formula CCl.sub.y H.sub.2-y F.sub.2 (wherein y is 1 or 2) to a mixture of conversion products. The process involves reacting certain halogenated hydrocarbon feeds and hydrogen (wherein said halogenated methanes are at least one mole percent of the halogenated hydrocarbon feed) in a reaction vessel of alumina, silicon carbide or at least one metal selected from gold, chromium, aluminum, molybdenum, titanium, nickel, iron, cobalt, and their alloys at a temperature of from about 500.degree. C. to 800.degree. C. and a pressure from abut 101 kPa to 7000 kPa to produce a mixture of conversion products of said halogenated methanes which comprises at least 5 mole percent C.sub.2 H.sub.2 F.sub.4, wherein the mole ratio of CH.sub.2 FCF.sub.3 to CHF.sub.2 CHF.sub.2 in said C.sub.2 H.sub.2 F.sub.4 is at least about 1:9.
摘要翻译:公开了将式CClyH2-yF2(其中y为1或2)的卤代甲烷转化为转化产物的混合物的方法。 该方法包括在氧化铝,碳化硅或选自金,铬,铝,钼的至少一种金属的反应容器中使某些卤代烃进料和氢(其中所述卤代甲烷为卤代烃进料的至少1摩尔%)反应 钛,镍,铁,钴及其合金,其温度为约500℃至800℃,压力为101kPa至7000kPa,以产生所述卤代甲烷的转化产物的混合物,其包含 至少5摩尔%的C 2 H 2 F 4,其中所述C 2 H 2 F 4中的CH 2 CHF 3与CHF 2 CHF 2的摩尔比为至少约1:9。
摘要:
A process for separating carbon dioxide from an unsaturated fluorinated compound carbon dioxide mixture comprising contacting the unsaturated fluorinated compound carbon dioxide mixture with a semipermeable membrane to form at least one exit stream having an increased concentration of carbon dioxide and at least one other exit stream having a reduced concentration of carbon dioxide.