2233-00-3Relevant articles and documents
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Bibler
, p. 24 (1971)
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PREPARATION OF 2,3,3,3-TETRAFLUOROPROPENE AND INTERMEDIATES THEREOF
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Page/Page column 13, (2020/05/15)
The present invention provides a process for preparation of 2,3,3,3-tetrafluoropropene and intermediates thereof. Owing to its low global warming potential and zero ozone depleting potential, it is been proposed as a replacement for existing chlorofluorocarbons and hydrofluorocarbons as refrigerant.
A method of synthesizing 2,3,3,3-tetrafluoropropene
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Paragraph 0031; 0032; 0035; 0036; 0039; 0040; 0043; 0044, (2017/08/27)
A method of synthesizing 2,3,3,3-tetrafluoropropene is disclosed. The method includes (1) reacting 1,1,1,3-tetrachloropropane with metal powder, and subjecting a reaction solution to alkali washing, drying and rectification to obtain trichloropropylene, (2) mixing the trichloropropylene prepared in the step (1) with a solvent, feeding a fluorine-nitrogen mixed gas, reacting, and rectifying the reaction solution to obtain difluorotrichloropropane, and (3) reacting the difluorotrichloropropane prepared by the step (2) with anhydrous hydrogen fluoride under an action of a catalyst, and subjecting a reaction product to alkali washing, drying and compression to obtain a 2,3,3,3-tetrafluoropropene product. The method has advantages of a simple process, a low cost and environment protection.
PROCESS FOR PREPARING CHLORINE-CONTAINING FLUOROCARBON COMPOUND
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Page/Page column 4, (2012/03/27)
The present invention provides a process for preparing at least one chlorine-containing fluorocarbon compound selected from the group consisting of chlorine-containing fluoropropane compounds represented by Formula (1): CFnCl3-nCHClCH2—Cl, wherein n is 1 or 2, and chlorine-containing fluoropropene compounds represented by Formula (2): CFnCl3-nCCl═CH2, wherein n is 1 or 2, wherein the process includes the step of contacting at least one chlorine-containing compound selected from the group consisting of 1,1,1,2,3-pentachloropropane, 1,1,2,3-tetrachloropropene, and 2,3,3,3-tetrachloropropene with hydrogen fluoride in the absence of a catalyst while heating. According to the present invention, the chlorine-containing propane and propene compounds having 1 or 2 fluorine atoms can be prepared by an industrially applicable, simple and effective process.