GB1025446A - Improved process for the separation and polymerisation of olefines - Google Patents

Improved process for the separation and polymerisation of olefines

Info

Publication number
GB1025446A
GB1025446A GB5908/63A GB590863A GB1025446A GB 1025446 A GB1025446 A GB 1025446A GB 5908/63 A GB5908/63 A GB 5908/63A GB 590863 A GB590863 A GB 590863A GB 1025446 A GB1025446 A GB 1025446A
Authority
GB
United Kingdom
Prior art keywords
isobutylene
olefines
polymerisation
separation
improved process
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
GB5908/63A
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.)
Compagnie Francaise de Raffinage SA
Original Assignee
Compagnie Francaise de Raffinage SA
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
Priority claimed from FR888068A external-priority patent/FR1337232A/en
Priority claimed from FR921624A external-priority patent/FR82944E/en
Application filed by Compagnie Francaise de Raffinage SA filed Critical Compagnie Francaise de Raffinage SA
Publication of GB1025446A publication Critical patent/GB1025446A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C11/00—Aliphatic unsaturated hydrocarbons
    • C07C11/02—Alkenes
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2/00—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms
    • C07C2/02—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by addition between unsaturated hydrocarbons
    • C07C2/04—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by addition between unsaturated hydrocarbons by oligomerisation of well-defined unsaturated hydrocarbons without ring formation
    • C07C2/06—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by addition between unsaturated hydrocarbons by oligomerisation of well-defined unsaturated hydrocarbons without ring formation of alkenes, i.e. acyclic hydrocarbons having only one carbon-to-carbon double bond
    • C07C2/08—Catalytic processes
    • C07C2/14—Catalytic processes with inorganic acids; with salts or anhydrides of acids
    • C07C2/16—Acids of sulfur; Salts thereof; Sulfur oxides
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00—Purification; Separation; Use of additives
    • C07C7/148—Purification; Separation; Use of additives by treatment giving rise to a chemical modification of at least one compound
    • C07C7/17—Purification; Separation; Use of additives by treatment giving rise to a chemical modification of at least one compound with acids or sulfur oxides
    • C07C7/171—Sulfuric acid or oleum
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2527/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • C07C2527/02—Sulfur, selenium or tellurium; Compounds thereof
    • C07C2527/053—Sulfates or other compounds comprising the anion (SnO3n+1)2-
    • C07C2527/054—Sulfuric acid or other acids with the formula H2Sn03n+1

Landscapes

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

Abstract

Isobutylene is partially separated from a hydrocarbon mixture and partially converted into dimers and trimers by extracting with sulphuric acid of strength about 50% and below 55%, heating the extract obtained for less than 2 hours to polymerize a given portion, less than 100% of the extracted isobutylene and to recover isobutylene monomer, separating the polymer and regenerating any, remaining isobutylene without modifying the acid concentration. The extract is heated to 70-140 DEG C.
GB5908/63A 1962-02-14 1963-02-13 Improved process for the separation and polymerisation of olefines Expired GB1025446A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR888068A FR1337232A (en) 1962-02-14 1962-02-14 Combined process for the separation and polymerization of olefins
FR921624A FR82944E (en) 1963-01-16 1963-01-16 Combined process for the separation and polymerization of olefins

Publications (1)

Publication Number Publication Date
GB1025446A true GB1025446A (en) 1966-04-06

Family

ID=26194373

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5908/63A Expired GB1025446A (en) 1962-02-14 1963-02-13 Improved process for the separation and polymerisation of olefines

Country Status (3)

Country Link
DE (1) DE1443585A1 (en)
GB (1) GB1025446A (en)
OA (1) OA00475A (en)

Also Published As

Publication number Publication date
DE1443585A1 (en) 1969-11-20
OA00475A (en) 1966-07-15

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