GB545729A - A solvent extraction process for the separation of ethyl chloride and butane - Google Patents

A solvent extraction process for the separation of ethyl chloride and butane

Info

Publication number
GB545729A
GB545729A GB15575/40A GB1557540A GB545729A GB 545729 A GB545729 A GB 545729A GB 15575/40 A GB15575/40 A GB 15575/40A GB 1557540 A GB1557540 A GB 1557540A GB 545729 A GB545729 A GB 545729A
Authority
GB
United Kingdom
Prior art keywords
solvent
ethyl
ethyl chloride
butane
chloride
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
GB15575/40A
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.)
Standard Oil Development Co
Original Assignee
Standard Oil Development Co
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 Standard Oil Development Co filed Critical Standard Oil Development Co
Publication of GB545729A publication Critical patent/GB545729A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F7/00Compounds containing elements of Groups 4 or 14 of the Periodic Table
    • C07F7/24Lead compounds
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00Preparation of halogenated hydrocarbons
    • C07C17/38Separation; Purification; Stabilisation; Use of additives
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00Purification; Separation; Use of additives
    • C07C7/10Purification; Separation; Use of additives by extraction, i.e. purification or separation of liquid hydrocarbons with the aid of liquids

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

545,729. Separating ethyl chloride and butane. STANDARD OIL DEVELOPMENT CO. Oct. 23, 1940, No. 15575. Convention date, Nov. 3, 1939. [Class 2 (iii)] Ethyl chloride and butane are separated by treatment with a selective solvent such as methyl, ethyl, isopropyl or mixed alcohols or ethylene or propylene glycol, and particularly an aqueous ethyl alcohol. The process is particularly applicable for the separation of the azeotropic mixture obtained by distillation in the recovery of ethyl chloride in the formation of lead tetraethyl by heating under pressure a sodium lead alloy with excess of ethyl chloride preferably in presence of a catalyst such as pyridine or ethyl bromide. The mixture is fed through inlet 2 into a tower 1 maintained at from -10‹ C. to 100 ‹ C. and at a pressure which may be up to 200 lbs. per square inch, sufficient to maintain the material liquid, into a current of solvent from an inlet 3. The butane phase passes from the top of the tower to a recovery unit 5 where butane is separated preferably by distillation from the solvent. The solvent extract passes from the bottom of the tower to a recovery unit 10 where the ethyl chloride is separated preferably by distillation from the solvent. If ethyl alcohol is used as the solvent, the extract may be passed to a vessel 18 where it is treated with hydrogen chloride to form ethyl chloride from the alcohol. The selectivity of the solvent for ethyl chloride may be increased by addition of anti-solvents such as ethylene glycol or formamide.
GB15575/40A 1939-11-03 1940-10-23 A solvent extraction process for the separation of ethyl chloride and butane Expired GB545729A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US545729XA 1939-11-03 1939-11-03

Publications (1)

Publication Number Publication Date
GB545729A true GB545729A (en) 1942-06-10

Family

ID=21992031

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15575/40A Expired GB545729A (en) 1939-11-03 1940-10-23 A solvent extraction process for the separation of ethyl chloride and butane

Country Status (2)

Country Link
FR (1) FR889592A (en)
GB (1) GB545729A (en)

Also Published As

Publication number Publication date
FR889592A (en) 1944-01-13

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