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Hexachloroethane → 1,1-Dichloro-1,2,2,2-tetrafluoroethane

HRID 1869728
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Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1869728
[Ge](F)(F)(F)F.ClC(Cl)(Cl)C(Cl)(Cl)Cl.[Al+3].[Cl-].[Cl-].[Cl-].[Cl:18][C:19]([Cl:25])(Cl)[C:20]([F:23])([F:22])[F:21].[Cl:26][C:27]([F:33])([F:32])[C:28]([F:31])([F:30])[F:29]>C(Cl)(F)(F)C(Cl)(Cl)F>[C:20]([F:23])([F:22])([F:21])[C:19]([Cl:25])([Cl:18])[F:29].[C:28]([F:31])([F:30])([F:29])[C:27]([Cl:26])([F:33])[F:32]
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Komponenten

8

Edukt 5

HCID 6214Hexachloroethane4×HCID 6430ChloropentafluoroethaneHCID 96351,1,1-Trichloro-2,2,2-trifluoroethaneHCID 82215Germanium tetrafluoride4×HCID 6451240Aluminum(III) Chloride

Produkt 2

HCID 6430Chloropentafluoroethane
Ausbeute 27 %
HCID 97751,1-Dichloro-1,2,2,2-tetrafluoroethaneAusbeute 73 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6428Cfc 113Lösungsmittel

Versuchsvorschrift

In the reactor 101, GeF4 and hexachloroethane in the reaction feed contact the catalyst (e.g., AlCl3) held in the catalyst bed. The reactor 101 can be at a temperature of about 220° to about 375° C. and at a pressure of about 500 to 800 psig (i.e., about 3.45 MPa to about 5.52 MPa). In one embodiment, the inventor has observed that hexachloroethane and GeF4 in the reaction feed can react to form CFC-113 with high yield and good selectivity at a reaction temperature of about 310° C. and a molar ratio of hexachloroethane to GeF4 of about 1:1.67. Other potential fluorination products can include 1,1,1-trichloro-2,2,2-trifluoroethane (CFC-113a), 1,2-dichloro-1,2,2,2-tetrafluoroethane (CFC-114a), 1-chloro-1,1,2,2,2-pentafluoroethane (CFC-115), and/or other fluorine-substituted chloroethanes. In another embodiment, the inventor has observed that hexachloroethane and GeF4 in the reaction feed can react to form CFC-114a (about 73%) and CFC-115 (about 27%) at a reaction temperature of about 340° C. and a molar ratio of hexachloroethane to GeF4 of about 1:2.75.

Aufarbeitung

  1. customcan be at a temperature of about 220° to about 375° C. and at a pressure of about 500 to 800 psig (i.e., about 3.45 MPa to about 5.52 MPa)
  2. customcan react
  3. customwith high yield
  4. customat a reaction temperature of about 310° C.
  5. customcan react

Quellen und Nachweise

ORD-Eintrag
ord-6c7f4802952e4b3384b567972329526c
Quelldatensatz
uspto-grants-2009_12
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US07638659B2

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