431-53-8

Usage

Uses

Used in Chemical Industry:
1,2-Dichlorotetrafluoropropene is used as a raw material for the production of refrigerants and propellants, contributing to the development of products that are essential for various applications, including cooling systems and aerosol products.
Used in Fluoropolymer and Fluorinated Compounds Manufacturing:
1,2-Dichlorotetrafluoropropene is utilized as an intermediate in the synthesis of fluoropolymers and other fluorinated compounds, which are known for their unique properties such as chemical resistance, thermal stability, and non-stick characteristics. These materials are widely used in industries like automotive, aerospace, electronics, and textiles.
Used in Research and Development:
Due to its unique chemical properties, 1,2-dichlorotetrafluoropropene is employed in research and development activities to explore new applications and improve existing processes in the chemical and materials science fields.

InChI:InChI=1/C3Cl2F4/c4-1(2(5)6)3(7,8)9/b2-1-

Upstream product

• 431-52-7 1,1,2-trichloro-3,3,3-trifluoropropene 
• 7664-39-3 hydrogen fluoride 
• 7637-07-2 boron trifluoride 

Downstream Products

• 661-97-2 1,2-dichlorohexafluoropropane 
• 306-88-7 1,2,3,4-tetrachloro-1,1,4,4-tetrafluoro-2,3-bis-trifluoromethyl-butane 
• 116-15-4 perfluoropropylene 
• 431-52-7 1,1,2-trichloro-3,3,3-trifluoropropene 

Relevant academic research and scientific papers

Preparation of composition containing chromium, oxygen, and either silver or palladium, and their use as catalysts and catalyst precursors

A method for preparing a catalyst composition suitable for increasing the fluorine content in a hydrocarbon or a halogenated hydrocarbon is disclosed. The method involves (a) co-precipitating a solid by adding ammonium hydroxide to an aqueous solution of a soluble trivalent chromium salt and a soluble salt of a modifier metal selected from silver and palladium, that contains at least three moles of nitrate (i.e., NO3?) per mole of chromium (i.e., Cr+3) in the solution and has a modifier metal concentration of from about 0.05 atom % to about 10 atom % of the total concentration of modifier metal and chromium in the solution to form an aqueous mixture containing co-precipitated solid and dissolved ammonium nitrate; and after at least three moles of ammonium hydroxide per mole of chromium in the solution has been added to the solution, (b) drying said aqueous mixture formed in (a); and (c) calcining the dried solid formed in (b) in an atmosphere containing at least 10% oxygen by volume (e.g., air). Also disclosed is a catalyst composition comprising alpha-chromium oxide and a modifier metal selected from silver and palladium prepared by the above method. Also disclosed is a process for increasing the fluorine content in a hydrocarbon or halogenated hydrocarbon in the presence of a catalyst; and processes using a catalyst composition comprising chromium, oxygen and a modifier metal selected from siver and palladium as essential constituent elements (e.g., a catalyst composition prepared by the above process). An azeotropic composition involving CF3CCl═CF2 and HF is also disclosed.

Compositions containing chromium, oxygen, and at least two modifier metals selected the group consisting of gold, silver, and palladium, their preparation, and their use as catalysts and catalyst precursors

A catalyst composition is disclosed that includes chromium, oxygen, and at least two of gold, silver, and palladium as essential constituent elements. The amount of modifier metals (gold, silver, and/or palladium) in the composition is from about 0.05 atom % to about 10 atom % based on the total amount of chromium and modifier metals. Also disclosed is a process for changing the fluorine distribution (i.e., content and/or arrangement) in a hydrocarbon or halogenated hydrocarbon in the presence of the catalyst composition; and methods for preparing said catalyst composition. One preparation method involves (a) co-precipitating a solid by adding ammonium hydroxide (aqueous ammonia) to an aqueous solution of soluble salts of modifier metals and a soluble chromium salt that contains at least three moles of nitrate per mole of chromium in the solution and has a modifier metal content of from about 0.05 atom % to about 10 atom % of the total content of modifier metals and chromium in the solution to form an aqueous mixture containing co-precipitated solid; (b) drying the co-precipitated solid formed in (a); and (c) calcining the dried solid formed in (b) in an atmosphere containing at least 10% oxygen by volume. Another preparation method involves (a) impregnating solid chromium oxide with a solution of a soluble modifier metal salts; (b) drying the impregnated chromium oxide prepared in (a); and optionally; (c) calcining the dried solid. Yet another preparation method involves mixing multiple compositions, each comprising chromium, oxygen, and at least one modifier metal.

PROCESSES FOR THE PREPARATION OF 2-CHLORO-1,1,1,2,3,3,3-HEPTAFLUOROPROPANE, HEXAFLUOROPROPENE AND 1,1,1,2,3,3,3-HEPTAFLUOROPROPANE

A process for the preparation of 2-chloro-1,1,1,3,3,3-heptafluoropropane is disclosed which involves (a) contacting a mixture comprising hydrogen fluoride, chlorine, and at least one starting material selected from the group consisting of halopropenes of the formula CX3CCl=CX2 and halopropanes of the formula the CX3CClYCX3, wherein each X is independently F or Cl, and Y is H, Cl or F (provided that the number of X and Y which are F totals no more than six) with a chlorofluorination catalyst in a reaction zone to produce a product mixture comprising CF3CClFCF3, HCl, HF, and underfluorinated halogenated hydrocarbon intermediates. The process is characterized by said chlorofluorination catalyst comprising at least one chromium-containing component selected from (i) a crystalline alpha-chromium oxide where at least 0.05 atom % of the chromium atoms in the alpha-chromium oxide lattice are replaced by nickel, trivalent cobalt or both nickel and trivalent cobalt, provided that no more than 2 atom % of the chromium atoms in the alpha-chromium oxide lattice are replaced by nickel and that the total amount of chromium atoms in the alpha-chromium oxide lattice that are replaced by nickel and trivalent cobalt is no more than 6 atom % , and (ii) a fluorinated crystalline oxide of (i).Also disclosed is a process for the manufacture of a mixture of HFC-227ea and hexafluoropropene by reacting a starting mixture comprising CFC-217ba and hydrogen in the vapor phase at an elevated temperature, optionally in the presence of a hydrogenation catalyst. This process involves preparing the CFC-217ba by the process described above.