1,2-二氯四氟丙烯 | 431-53-8

• 分子结构分类: 有机化合物 - 有机卤素化合物 - 乙烯基卤化物
• 中文名称: 1,2-二氯四氟丙烯
• 英文名称: 1,2-dichlorotetrafluoropropene
• 英文别名: 1,2-Dichlor-tetrafluor-propen；1,2-dichloro-1,3,3,3-tetrafluoro-propene；1ξ,2-Dichlor-tetrafluor-propen；1,2-dichloro-1,3,3,3-tetrafluoro-1-propene；CF3CCl=CClF；1,2-Dichloro-1,3,3,3-tetrafluoroprop-1-ene
• CAS: 431-53-8
• 化学式: C₃Cl₂F₄
• 分子量: 182.933
• InChiKey: BJDGSGIFQVXSGD-UHFFFAOYSA-N

物化性质

• 熔点：
  -137°C
• 沸点：
  47°C
• 密度：
  1,547 g/cm3

计算性质

• 辛醇/水分配系数(LogP)：
  3
• 重原子数：
  9
• 可旋转键数：
  0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  4

安全信息

• 危险等级：
  IRRITANT
• 危险品标志：
  Xi
• 危险类别码：
  R36/37/38
• 海关编码：
  2903799090
• 安全说明：
  S26,S36/37/39

反应信息

• 作为反应物：
  描述：

  1,2-二氯四氟丙烯 在 氯 作用下， 生成 1,1,2,2-四氯-1,3,3,3-四氟丙烷
  参考文献：
  名称：

  Miller, 1951, vol. Bd.1, p. 567,598

  摘要：

  DOI：
• 作为产物：
  描述：

  2,3-二氯-1,1,1,2,3-五氟-丙烷 以 水 为溶剂， 生成 1,2-二氯四氟丙烯
  参考文献：
  名称：

  METHOD OF REMOVING 2-CHLORO-1,3,3,3-TETRAFLUOROPROPENE AND METHOD OF PRODUCING 1-CHLORO-2,3,3,3-TETRAFLUOROPROPENE

  摘要：

  提供了：一种去除2-氯-1,3,3,3-四氟丙烯（1224xe）的方法，该方法包括将含有1224xe和1224yd的混合物与碱接触，可选地在存在相转移催化剂的情况下；以及一种生产1-氯-2,3,3,3-四氟丙烯（1224yd）的方法，该方法包括将含有1224xe和1224yd的混合物与碱接触，可选地在存在相转移催化剂的情况下。

  公开号：

  US20200317592A1

文献信息

• Preparation of composition containing chromium, oxygen, and either silver or palladium, and their use as catalysts and catalyst precursors
  申请人：Rao Velliyur Nott Mallikarjuna

  公开号：US20080207963A1

  公开（公告）日：2008-08-28

  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., NO 3 − ) 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 CF 3 CCl═CF 2 and HF is also disclosed.

  本发明公开了一种制备催化剂组成物的方法，适用于提高碳氢化合物或卤化碳氢化合物中氟含量。该方法包括(a)通过向可溶性三价铬盐和可溶性修饰金属盐的水溶液中添加氢氧化铵，共沉淀出固体，所述水溶液中含有至少每摩尔铬（即Cr+3）三摩尔硝酸盐（即NO3−）和约0.05原子%至约10原子%的修饰金属总浓度，形成含有共沉淀固体和溶解的硝酸铵的水混合物；并在向溶液中加入至少每摩尔铬三摩尔氢氧化铵后，(b)干燥(a)中形成的水混合物；和(c)在至少含有10%体积氧气的气氛中（例如空气）煅烧(b)中形成的干燥固体。本发明还公开了一种催化剂组成物，包括α-铬氧化物和从银和钯中选择的修饰金属，由上述方法制备。本发明还公开了一种在催化剂存在下提高碳氢化合物或卤化碳氢化合物中氟含量的过程；以及使用包括铬，氧和从银和钯中选择的修饰金属作为必要组成元素的催化剂组成物的过程（例如，由上述过程制备的催化剂组成物）。本发明还公开了涉及CF3CCl═CF2和HF的共沸混合物组成。
• 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
  申请人：Rao Velliyur Nott Mallikarjuna

  公开号：US20080207962A1

  公开（公告）日：2008-08-28

  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.

  本发明揭示了一种催化剂组合物，该组合物包括铬、氧和至少两种金、银和钯中的必需组分元素。组合物中的修饰金属（金、银和/或钯）的量为总铬和修饰金属的总量的约0.05原子％至约10原子％。还揭示了在催化剂组合物存在下改变烃或卤代烃中氟分布（即含量和/或排列）的过程；以及制备所述催化剂组合物的方法。其中一种制备方法包括（a）通过向可溶性修饰金属盐和含有每摩尔铬溶液中至少三摩尔硝酸盐的可溶性铬盐的水溶液中加入氢氧化铵（氨水）共沉淀固体，所述溶液中的修饰金属含量为总修饰金属和铬的总含量的约0.05原子％至约10原子％，以形成含有共沉淀固体的水溶液混合物；（b）干燥（a）中形成的共沉淀固体；以及（c）在至少含有10％氧气体积的气氛中煅烧（b）中形成的干燥固体。另一种制备方法包括（a）用可溶性修饰金属盐的溶液浸渍固体铬氧化物；（b）干燥（a）中制备的浸渍铬氧化物；以及可选的；（c）煅烧干燥的固体。另一种制备方法涉及混合多种组合物，每种组合物均包括铬、氧和至少一种修饰金属。
• [EN] 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<br/>[FR] PROCEDES DE PREPARATION DE 2-CHLORO-1,1,1,2,3,3,3-HEPTAFLUOROPROPANE, HEXAFLUOROPROPENE ET DE 1,1,1,2,3,3,3-HEPTAFLUOROPROPANE
  申请人：DU PONT

  公开号：WO2004018397A1

  公开（公告）日：2004-03-04

  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.

  公开了一种制备2-氯-1,1,1,3,3,3-七氟丙烷的方法，其中涉及(a)将氢氟酸、氯和至少一种起始物质与氯氟化催化剂在反应区接触，所述起始物质选择自公式CX3CCl=CX2的卤代丙烯和公式CX3CClYCX3的卤代丙烷群，其中每个X独立地为F或Cl，Y为H、Cl或F（前提是F的数量不超过六个），以产生包含CF3CClFCF3、HCl、HF和低氟化卤代碳氢化合物中间体的产物混合物。该过程的特点在于所述氯氟化催化剂包含至少一种含铬组分，所述含铬组分选择自(i)晶体α-氧化铬，其中α-氧化铬晶格中至少0.05％的铬原子被镍、三价钴或镍和三价钴替代，前提是α-氧化铬晶格中不超过2％的铬原子被镍替代，且α-氧化铬晶格中被镍和三价钴替代的铬原子的总量不超过6％，以及(ii)上述(i)的氟化晶体氧化物。还公开了一种制备HFC-227ea和六氟丙烯混合物的方法，该方法通过在高温下在蒸汽相中反应CFC-217ba和氢的起始混合物制备CFC-217ba，可选地在氢化催化剂的存在下进行。该过程涉及上述描述的制备CFC-217ba的方法。
• Fluorinated Derivatives of Propane and Propylene. VI
  作者：Albert L. Henne、T. Phillip Waalkes

  DOI：10.1021/ja01207a041

  日期：1946.3
• The Addition of Fluorine to Double Bonds
  作者：Albert L. Henne、T. Phillip Waalkes

  DOI：10.1021/ja01226a002

  日期：1945.10