GB1218966A - Oxychlorination process - Google Patents

Oxychlorination process

Info

Publication number
GB1218966A
GB1218966A GB4536768D GB4536768D GB1218966A GB 1218966 A GB1218966 A GB 1218966A GB 4536768 D GB4536768 D GB 4536768D GB 4536768 D GB4536768 D GB 4536768D GB 1218966 A GB1218966 A GB 1218966A
Authority
GB
United Kingdom
Prior art keywords
hydrogen chloride
liquid bottoms
returned
liquid
sept
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB4536768D
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Princeton Chemical Research Inc
Original Assignee
Princeton Chemical Research Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Princeton Chemical Research Inc filed Critical Princeton Chemical Research Inc
Publication of GB1218966A publication Critical patent/GB1218966A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
    • C07C5/42—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by dehydrogenation with a hydrogen acceptor
    • C07C5/54—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by dehydrogenation with a hydrogen acceptor with an acceptor system containing at least two compounds provided for in more than one of the sub-groups C07C5/44 - C07C5/50
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/093—Preparation of halogenated hydrocarbons by replacement by halogens
    • C07C17/15—Preparation of halogenated hydrocarbons by replacement by halogens with oxygen as auxiliary reagent, e.g. oxychlorination
    • C07C17/152—Preparation of halogenated hydrocarbons by replacement by halogens with oxygen as auxiliary reagent, e.g. oxychlorination of hydrocarbons
    • C07C17/154—Preparation of halogenated hydrocarbons by replacement by halogens with oxygen as auxiliary reagent, e.g. oxychlorination of hydrocarbons of saturated hydrocarbons
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/38—Separation; Purification; Stabilisation; Use of additives

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

1,218,966. Hydrogen chloride. PRINCETON CHEMICAL RESEARCH Inc. 25 Sept., 1968 [25 Sept., 1967], No. 45637/68. Heading C1A. [Also in Divisions B1, C2 and C5] Gaseous inorganic constituents, especially hydrogen chloride and water vapour, are removed from the oxychlorination products of ethane which consist principally of vinyl chloride and ethylene, by scrubbing the products with aqueous hydrogen chloride (preferably 13-50% by weight HCl) at -25‹ to 212‹ F. The liquid bottoms is then preferably distilled to recover gaseous hydrogen chloride until an azeotropic mixture of aqueous hydrogen chloride is obtained, whereupon part of the liquid bottoms is returned with make-up acid to the scrubbing step. The remainder of the liquid is then mixed with a material which releases hydrogen chloride gas from the azeotropic mixture, suitably sulphur trioxide, concentrated sulphuric acid (>80%) or oleum, and the mixture distilled. The hydrogen chloride gas released, together with the gas obtained from the first distillation stage, is preferably returned to the oxychlorination reactor. The liquid bottoms is concentrated, and returned with make-up sulphuric acid &c., to be mixed with the liquid bottoms from the first distillation stage.
GB4536768D 1967-09-25 1968-09-25 Oxychlorination process Expired GB1218966A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US67036467A 1967-09-25 1967-09-25

Publications (1)

Publication Number Publication Date
GB1218966A true GB1218966A (en) 1971-01-13

Family

ID=24690128

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4536768D Expired GB1218966A (en) 1967-09-25 1968-09-25 Oxychlorination process

Country Status (4)

Country Link
BE (1) BE721394A (en)
FR (1) FR1595619A (en)
GB (1) GB1218966A (en)
NL (1) NL6813690A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4346069A (en) * 1981-01-26 1982-08-24 The Lummus Company Recovery of chlorine values in integrated process for oxychlorination and combustion of chlorinated hydrocarbons
US4351819A (en) * 1981-01-26 1982-09-28 The Lummus Company Recovery of chlorine values in integrated process for oxychlorination and combustion of chlorinated hydrocarbons
NZ200032A (en) * 1981-03-19 1985-07-12 Ici Plc Production of chlorinated hydrocarbons from alkanes
DE3334677A1 (en) * 1983-09-24 1985-04-18 Uhde Gmbh, 4600 Dortmund METHOD AND PLANT FOR RECOVERING CHLORINE FROM CHLORINE HYDROCARBON RESIDUES

Also Published As

Publication number Publication date
BE721394A (en) 1969-03-03
FR1595619A (en) 1970-06-15
NL6813690A (en) 1969-03-27

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Legal Events

Date Code Title Description
CSNS Application of which complete specification have been accepted and published, but patent is not sealed