460-35-5Relevant articles and documents
A 3, 3, 3-trifluoropropene method for the preparation of
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Paragraph 0015; 0029; 0030; 0031, (2017/02/24)
The invention discloses a preparation method of 3,3,3-trifluoropropene. The preparation method comprises the following steps: taking 1,1,1,3-tetrachloropropane and hydrogen fluoride as raw materials, taking an ionic liquid as a catalyst, performing a single-step liquid phase reaction to synthesize the 3,3,3-trifluoropropene, wherein the reaction temperature is 50-160 DEG C; the molar ratio of the ionic liquid to the 1,1,1,3-tetrachloropropane is (1:2) to (1:10); the molar ratio of the hydrogen fluoride to the 1,1,1,3-tetrachloropropane is (3.1:1) to (50:1); the general formula of the ionic liquid is X+A-; X+ is imidazole, pyridine and quaternary ammonium salt type substituted by C1-C8 alkyl; A- is metal acid radical anions containing aluminum, iron, antimony, tantalum, niobium, titanium, tin and other metals. In the invention, the ionic liquid is taken as the catalyst, and 1,1,1,3-tetrachloropropane and hydrogen fluoride are performed with the single-step liquid phase reaction to obtain 3,3,3-trifluoropropene. The process is free of a sodium hydroxide solution to take a dehydrochlorination reaction, so that the reaction steps are less, and the process is environment-friendly. In addition, the ionic liquid is taken as the catalyst, so that the ionic liquid is high in activity and can be recycled for multiple times.
PROCESS FOR 1-CHLORO-3,3,3-TRIFLUOROPROPENE FROM TRIFLUOROPROPENE
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Paragraph 0073, (2015/02/25)
The present invention provides routes for making 1-chloro-3,3,3-trifluoropropene (HCFO-1233zd) from commercially available raw materials. More specifically, this invention provides several routes for forming HCFO-1233zd from 3,3,3-trifluoropropene (FC-1234zf).
PROCESSES FOR THE PRODUCTION OF FLUOROPROPANES AND HALOPROPENES AND AZEOTROPIC COMPOSITIONS OF 2-CHLORO-3,3,3-TRIFLUORO-1-PROPENE WITH HF AND OF 1,1,1,2,2-PENTAFLUOROPROPANE WITH HF
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Page/Page column 19, (2008/12/05)
A process is disclosed for making CF3CF2CH3, CF3CF=CH2 and/or CF3CCI=CH2. The process involves reacting at least one starting material selected from the group consisting of halopropanes of the formula CX3CHCICH2X, halopropenes of the formula CCIX2CCI=CH2 and halopropenes of the formula CX2=CCICH2X, wherein each X is independently F or Cl, with HF in a reaction zone to produce a product mixture comprising HF, HCI, CF3CF2CH3, CF3CF=CH2 and CFsCCI=CH2; and recovering the CF3CF2CH3, CF3CF=CH2 and/or CFsCCI=CH2 from the product mixture. Also disclosed is a process for making CF3CH2CHF2, CFsCH=CHF and/or CF3CH=CHCI. This process involves reacting at least one starting material selected from the group consisting of halopropanes of the formula CX3CHCICH2X, halopropenes of the formula CX3CCI=CH2 and halopropenes of the formula CX2=CCICH2X, wherein each X is independently F or Cl, with HF in a reaction zone to produce a product mixture comprising HF, HCI, CF3CH2CHF2, CF3CH=CHF and CF3CH=CHCI; and recovering the CF3CH2CHF2, CF3CH=CHF and/or CF3CH=CHCI from the product mixture. Also disclosed is a process for making CF3CF2CH3 and/or CF3CF=CH2- This process involves reacting at least one starting material selected from the group consisting of halopropanes of the formula CX3CHCICH2X, halopropenes of the formula CX3CCI=CH2 and halopropenes of the formula CX2=CCICH2X, wherein each X is independently F or Cl, with HF in a reaction zone to produce a product mixture comprising HF, HCI, CF3CF2CH3 and CF3CF=CH2; and recovering the CF3CF2CH3 and/or CF3CF=CH2 from the product mixture. In each of the processes the molar ratio of HF to total amount of starting material fed to the reaction zone is at least stoichiometric. Also disclosed is an azeotropic composition comprising CF3CCI=CH2, and HF. Also disclosed is an azeotropic composition comprising CF3CF2CH3, and HF.
