GB553749A - Alkylation process - Google Patents

Alkylation process

Info

Publication number
GB553749A
GB553749A GB15466/41A GB1546641A GB553749A GB 553749 A GB553749 A GB 553749A GB 15466/41 A GB15466/41 A GB 15466/41A GB 1546641 A GB1546641 A GB 1546641A GB 553749 A GB553749 A GB 553749A
Authority
GB
United Kingdom
Prior art keywords
catalyst
acid
hydrocarbons
alkylation
treated
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
GB15466/41A
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.)
Shell Development Co
Original Assignee
Shell 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 Shell Development Co filed Critical Shell Development Co
Publication of GB553749A publication Critical patent/GB553749A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C07C2/54—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by addition of unsaturated hydrocarbons to saturated hydrocarbons or to hydrocarbons containing a six-membered aromatic ring with no unsaturation outside the aromatic ring
    • C07C2/56—Addition to acyclic hydrocarbons
    • C07C2/58—Catalytic processes
    • C07C2/62—Catalytic processes with acids
    • 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)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)

Abstract

553,749. Alkylating hydrocarbons. SHELL DEVELOPMENT CO. Dec. 1, 1941, No. 15466. Convention date, Nov. 28, 1940. '[Class 2 (iii)] In alkylating hydrocarbons in presence of an inorganic sulphur acid catalyst (H 2 SO 4 , ClHSO 3 or FHSO 3 ) by means of an alkylation catalyst, e.g. isoparaffins by olefines, at least one of the reactants is treated with a substantially hydrocarbon-insoluble strong carboxylic acid (i.e. one having a dissociation constant of at least 1.8 x 10-<SP>5</SP> and preferably of at least 2.0 x 10-<SP>5</SP>) prior to contact with the catalyst so as to prolong the effective life of the catalyst. In examples a cracked gasoline to be used for alkylation of isobutane is heated at 50‹C. with 90 per cent. formic acid, and a pentaneamylene fraction of cracked hydrocarbons is treated with 90 per cent. formic acid at 70‹C. Other acids which may be used are oxalic, malonic, chloracetic, hydroxyacetic, lactic, tartaric, and, less advantageously, acetic acid.
GB15466/41A 1940-11-28 1941-12-01 Alkylation process Expired GB553749A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US553749XA 1940-11-28 1940-11-28

Publications (1)

Publication Number Publication Date
GB553749A true GB553749A (en) 1943-06-03

Family

ID=21997390

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15466/41A Expired GB553749A (en) 1940-11-28 1941-12-01 Alkylation process

Country Status (1)

Country Link
GB (1) GB553749A (en)

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