会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 9. 发明申请
    • PURIFICATION METHOD OF 2,3,3,3-TETRAFLUOROPROPENE
    • 2,3,3,3-四氯丙烯的纯化方法
    • WO2012011609A1
    • 2012-01-26
    • PCT/JP2011/067179
    • 2011-07-21
    • DAIKIN INDUSTRIES, LTD.CHAKI, TakehiroTAKAHASHI, Kazuhiro
    • CHAKI, TakehiroTAKAHASHI, Kazuhiro
    • C07C17/38C07C17/383C07C21/18C01B7/19
    • C07C17/386C01B7/196C07C17/38C07C17/383Y02P20/582C07C21/18
    • This invention provides a method for purifying HFO-1234yf by removing HF from a mixture of HFO-1234yf and HF under simple and economically advantageous conditions. According to the present invention, this is a purification method for 2,3,3,3-tetrafluoropropene, (1) the purification method comprising the step of subjecting a mixture comprising 2,3,3,3-tetrafluoropropene and hydrogen fluoride to extractive distillation in a distillation column A using an extractant, thereby obtaining a fraction I that contains 2,3,3,3-tetrafluoropropene and has a lower ratio of hydrogen fluoride to 2,3,3,3-tetrafluoropropene than that of the mixture, while obtaining a fraction II that contains hydrogen fluoride and has a lower ratio of 2,3,3,3-tetrafluoropropene to hydrogen fluoride than that of the mixture; (2) the extractant comprising at least one member selected from the group consisting of: (i) alcohols represented by ROH, wherein R is a C 1-5 alkyl group, (ii) ethers represented by ROR', wherein R and R' are the same or different, and each is a C 1-4 alkyl group, (iii) fluorinated alcohols represented by RfOH, wherein Rf is a C 1-3 fluoroalkyl group, (iv) ketones represented by RCOR', wherein R and R' are the same or different, and each is a C 1-4 alkyl group, (v) esters represented by RCOOR', wherein R and R' are the same or different, and each is a C 1-4 alkyl group, (vi) polyols represented by R(OH)n, wherein R is a C 1-4 alkyl group, and n is an integer of 2 to 3, and (vii) ethylene glycols represented by R 1 O(CH 2 CH 2 O) n R 2 , wherein R 1 and R 2 are the same or different, and each is hydrogen or a C 1-4 alkyl group, and n is an integer of 1 to 3.
    • 本发明提供了一种通过在简单且经济有利的条件下从HFO-1234yf和HF的混合物中除去HF来净化HFO-1234yf的方法。 根据本发明,这是2,3,3,3-四氟丙烯的纯化方法,(1)纯化方法,包括使包含2,3,3,3-四氟丙烯和氟化氢的混合物进行萃取 在使用萃取剂的蒸馏塔A中进行蒸馏,从而获得含有2,3,3,3-四氟丙烯的馏分I,并且氟化氢与2,3,3,3-四氟丙烯的比例低于混合物, 同时获得含有氟化氢并且比2,3混合物具有较低的2,3,3,3-四氟丙烯与氟化氢的比例II; (2)萃取剂,其包含选自以下的至少一种:(i)由ROH表示的醇,其中R为C 1-5烷基,(ii)由ROR'表示的醚,其中R和R'为 相同或不同,各自为C1-4烷基,(iii)由RfOH表示的氟化醇,其中Rf为C1-3氟代烷基,(iv)由RCOR'表示的酮,其中R和R'为 相同或不同,并且各自为C 1-4烷基,(v)由RCOOR'表示的酯,其中R和R'相同或不同,并且各自为C 1-4烷基,(vi)由 R(OH)n,其中R为C 1-4烷基,n为2〜3的整数,(vii)由R 1 O(CH 2 CH 2 O)n R 2表示的乙二醇,其中R 1和R 2相同或不同, 各自为氢或C 1-4烷基,n为1〜3的整数。