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    • 61. 发明授权
    • Single stage process for producing hydrofluorocarbons from
perchloroethylene
    • 从全氯乙烯生产氢氟烃的单阶段工艺
    • US5545778A
    • 1996-08-13
    • US248981
    • 1994-05-25
    • Hsueh S. TungAddison M. SmithCharles F. Swain
    • Hsueh S. TungAddison M. SmithCharles F. Swain
    • C07C17/087C07B61/00C07C17/21C07C17/35C07C17/38C07C17/383C07C19/08C07C19/12C07C17/08
    • C07C17/21C07C17/383
    • A process for the preparation of one or more of CHClFCF.sub.3 (HCFC-124), CHF.sub.2 CClF.sub.2 (HCFC-124a) and CHF.sub.2 CF.sub.3 (HFC-125) by reaction of perchloroethylene with hydrogen fluoride in a single stage reaction vessel in the presence of a fluorination catalyst. These compounds are useful in a variety of industrial applications including blowing agents, refrigerants, sterilant gases and solvent applications. Distilling the reaction product produces a distillate comprising HCl, CHClFCF.sub.3, CHF.sub.2 CClF.sub.2 and CHF.sub.2 CF.sub.3 and a minor amount of HF which distillate is scrubbed to remove the acids. The bottoms product comprises perchloroethylene, hydrogen fluoride and organic by-products which is phase separated to sequester the hydrogen fluoride from the mixture of perchloroethylene and organic by-products. The hydrogen fluoride and mixture of perchloroethylene with organic by-products are then preferably re-mixed at a controlled rate and recycled to the reaction vessel.
    • 在氟化催化剂存在下,在单级反应容器中通过全氯乙烯与氟化氢的反应制备CHClFCF3(HCFC-124),CHF2CClF2(HCFC-124a)和CHF2CF3(HFC-125)中的一种或多种的方法 。 这些化合物可用于各种工业应用,包括发泡剂,制冷剂,灭菌气体和溶剂应用。 蒸馏反应产物产生包含HCl,CHClFCF 3,CHF 2 CClF 2和CHF 2 CF 3的馏出物和少量HF,该馏出物被洗涤以除去酸。 底部产物包括全氯乙烯,氟化氢和有机副产物,其相分离以从全氯乙烯和有机副产物的混合物中隔离氟化氢。 然后将氟化氢和全氯乙烯与有机副产物的混合物优选以受控的速率重新混合并再循环至反应容器。
    • 63. 发明授权
    • Cathode active material for metal of CFX battery
    • CFX电池金属阴极活性材料
    • US4737423A
    • 1988-04-12
    • US932984
    • 1986-11-20
    • Hsueh S. Tung
    • Hsueh S. Tung
    • C01B31/00H01M4/58H01M4/583H01M4/36H01M10/40
    • H01M4/583C01B31/005H01M4/5835
    • Improved fluorinated carbon made from an amorphous carbon or heat treated amorphous carbon having a lattice constant (d.sub.002) of 3.37A or greater for use as a positive electrode of a battery is provided. Such improved fluorinated carbon has low free oxidizing power, high utility factor and high capacity upon discharge in a Li/CF.sub.x battery. The free oxidizing power is found to be dependent on reaction temperature; the higher the fluorination temperature the lower the free oxidizing power. Low free oxidizing power is obtained at reaction temperatures of at least 460.degree. C. Residual free oxidizing power can be further reduced by washing with an alkanol. Such alkanol wash can also be used to reduce free oxidizing power in fluorinated carbons prepared at lower temperatures.
    • 提供由非晶碳制成的改进的氟化碳或具有3.37A或更大的晶格常数(d002)为3.37A或更大的热处理非晶碳用作电池的正极。 这种改进的氟化碳在Li / CFx电池中放电时具有低的游离氧化能力,高效用因子和高容量。 发现游离氧化力取决于反应温度; 氟化温度越高,游离氧化能力越低。 在至少460℃的反应温度下获得低的游离氧化能力。通过用烷醇洗涤可以进一步降低残留的游离氧化能力。 这种链烷醇洗涤也可用于降低在较低温度下制备的氟化碳中的游离氧化能力。
    • 65. 发明申请
    • Manufacturing Process for HFO-1234ze
    • HFO-1234ze的制造工艺
    • US20100022809A1
    • 2010-01-28
    • US12125045
    • 2008-05-21
    • Stephen A. CottrellHsueh S. TungHaiyou Wang
    • Stephen A. CottrellHsueh S. TungHaiyou Wang
    • C07C17/00
    • C07C17/25C07C17/358C07C21/18
    • Disclosed is a method for forming HFO-1234ze, and for forming compositions comprising HFO-1234ze, by (a) converting, preferably by dehydrofluorination, pentafluorpropane (HFC-245), preferably 1,1,1,3,3-pentafluorpropane (HFC-245fa), preferably by contact with a caustic solution, to a reaction product comprising cis-HFO-1234ze and trans-HFO-1234ze; and (b) contacting at least a portion, preferably substantially portion, and in certain embodiments substantially all of said reaction product with at least one isomerization catalyst to convert at least a portion, and preferably at least a substantial portion, of cis-HFO-1234ze in said reaction product to trans-HFO-1234ze.
    • 公开了形成HFO-1234ze的方法,以及用于形成包含HFO-1234ze的组合物的方法,通过(a)优选通过脱氟化氢转化五氟丙烷(HFC-245),优选1,1,1,3,3-五氟丙烷(HFC -245fa),优选通过与苛性碱溶液接触,加入到包含顺-HFO-1234ze和反-HFO-1234ze的反应产物中; 并且(b)使至少一部分,优选基本上部分,在某些实施方案中使基本上所有的所述反应产物与至少一种异构化催化剂接触,以将至少一部分,优选至少大部分的顺-HFO- 1234ze在所述反应产物中以反式HFO-1234ze。