GB1165479A - Process for the Preparation of Tertiary Monoolefins - Google Patents

Process for the Preparation of Tertiary Monoolefins

Info

Publication number
GB1165479A
GB1165479A GB3261368A GB3261368A GB1165479A GB 1165479 A GB1165479 A GB 1165479A GB 3261368 A GB3261368 A GB 3261368A GB 3261368 A GB3261368 A GB 3261368A GB 1165479 A GB1165479 A GB 1165479A
Authority
GB
United Kingdom
Prior art keywords
tertiary
olefins
steam
catalyst
monoolefins
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
GB3261368A
Inventor
Arien Kwantes
Bernhard Stouthamer
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 Internationale Research Maatschappij BV
Original Assignee
Shell Internationale Research Maatschappij BV
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 Internationale Research Maatschappij BV filed Critical Shell Internationale Research Maatschappij BV
Priority to GB3261368A priority Critical patent/GB1165479A/en
Priority to DE19691934422 priority patent/DE1934422C3/en
Priority to NL6910382A priority patent/NL160234C/en
Priority to BE735740D priority patent/BE735740A/xx
Priority to ES369252A priority patent/ES369252A1/en
Priority to CA056379A priority patent/CA929537A/en
Priority to SE956669A priority patent/SE349559B/xx
Priority to FR6922961A priority patent/FR2012552A1/en
Publication of GB1165479A publication Critical patent/GB1165479A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C41/00—Preparation of ethers; Preparation of compounds having groups, groups or groups
    • C07C41/01—Preparation of ethers
    • C07C41/05—Preparation of ethers by addition of compounds to unsaturated compounds
    • C07C41/06—Preparation of ethers by addition of compounds to unsaturated compounds by addition of organic compounds only
    • 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
    • C07C7/14875—Purification; Separation; Use of additives by treatment giving rise to a chemical modification of at least one compound with organic compounds
    • C07C7/14891—Purification; Separation; Use of additives by treatment giving rise to a chemical modification of at least one compound with organic compounds alcohols
    • 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-

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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

1,165,479. Tertiary mono-olefins. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 9 July, 1968, No. 32613/68. Heading C5E. [Also in Division C2] Tertiary mono-olefins are prepared by decomposing ethers of the formula R-O-R<SP>1</SP>, wherein R is a C 4 -C 7 alkyl or cycloalkyl group having a tertiary carbon atom in the &alpha;-position and R<SP>1</SP> is C 1 -C 6 alkyl group, at elevated temperature in the presence of steam and of a catalyst comprising alumina having a surface area of at least 25 m.<SP>2</SP>/g., into C 4 -C 7 tertiary monoolefins and C 1 -C 6 primary alcohols. The process may be carried out at 180-300‹ C. with a steam :ether molar ratio of 10: 1 to 1: 1. The catalyst is preferably &gamma;-alumina containing up to 10 wt. per cent of thermally stable anionic groups such as SO 4 --, and free of alkali or alkaline earth metals. Examples describe the decomposition of methyl tertiary-butylether to isobutene and methanol.
GB3261368A 1968-07-09 1968-07-09 Process for the Preparation of Tertiary Monoolefins Expired GB1165479A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
GB3261368A GB1165479A (en) 1968-07-09 1968-07-09 Process for the Preparation of Tertiary Monoolefins
DE19691934422 DE1934422C3 (en) 1968-07-09 1969-07-07 Process for the separation of one or more tertiary monoolefins with four to seven carbon atoms in the molecule from hydrocarbon mixtures
NL6910382A NL160234C (en) 1968-07-09 1969-07-07 METHOD FOR INSULATING TERTIARY MONO-ALKINES FROM HYDROCARBON MIXTURES.
BE735740D BE735740A (en) 1968-07-09 1969-07-07
ES369252A ES369252A1 (en) 1968-07-09 1969-07-07 A procedure for the isolation of one or more mono-tertiary olefins. (Machine-translation by Google Translate, not legally binding)
CA056379A CA929537A (en) 1968-07-09 1969-07-07 Process for the isolation of tertiary mono-olefins from hydrocarbon mixtures
SE956669A SE349559B (en) 1968-07-09 1969-07-07
FR6922961A FR2012552A1 (en) 1968-07-09 1969-07-07 Tertiary olefins prodn and purification - using an ion-exchange catalyst

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3261368A GB1165479A (en) 1968-07-09 1968-07-09 Process for the Preparation of Tertiary Monoolefins

Publications (1)

Publication Number Publication Date
GB1165479A true GB1165479A (en) 1969-10-01

Family

ID=10341353

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3261368A Expired GB1165479A (en) 1968-07-09 1968-07-09 Process for the Preparation of Tertiary Monoolefins

Country Status (1)

Country Link
GB (1) GB1165479A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4006198A (en) * 1974-08-02 1977-02-01 Snam Progetti, S.P.A. Method for the preparation of tertiary olefins
US4083888A (en) * 1977-05-26 1978-04-11 Mobil Oil Corporation Process for manufacturing ethylene
US4083889A (en) * 1977-05-26 1978-04-11 Mobil Oil Corporation Process for manufacturing ethylene
US4320232A (en) 1979-07-14 1982-03-16 Basf Aktiengesellschaft Process for conjointly preparing methyl tert.-butyl ether and obtaining isobutene
US6696612B2 (en) 2001-06-21 2004-02-24 Sumitomo Chemical Company, Limited Process for producing isobutylene and methanol
US6852899B2 (en) 2001-06-21 2005-02-08 Sumitomo Chemical Company Limited Process for producing isobutylene and methanol
CN100467124C (en) * 2002-12-06 2009-03-11 华东理工大学 Catalyst for producing isobutene by cracking methyl tert-butyl ether
CN104437451A (en) * 2013-09-16 2015-03-25 中国石油化工股份有限公司 Preparation method and use method of eggshell type catalyst

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4006198A (en) * 1974-08-02 1977-02-01 Snam Progetti, S.P.A. Method for the preparation of tertiary olefins
US4083888A (en) * 1977-05-26 1978-04-11 Mobil Oil Corporation Process for manufacturing ethylene
US4083889A (en) * 1977-05-26 1978-04-11 Mobil Oil Corporation Process for manufacturing ethylene
US4320232A (en) 1979-07-14 1982-03-16 Basf Aktiengesellschaft Process for conjointly preparing methyl tert.-butyl ether and obtaining isobutene
US6696612B2 (en) 2001-06-21 2004-02-24 Sumitomo Chemical Company, Limited Process for producing isobutylene and methanol
US6852899B2 (en) 2001-06-21 2005-02-08 Sumitomo Chemical Company Limited Process for producing isobutylene and methanol
CN100467124C (en) * 2002-12-06 2009-03-11 华东理工大学 Catalyst for producing isobutene by cracking methyl tert-butyl ether
CN104437451A (en) * 2013-09-16 2015-03-25 中国石油化工股份有限公司 Preparation method and use method of eggshell type catalyst
CN104437451B (en) * 2013-09-16 2016-08-17 中国石油化工股份有限公司 The preparation method of a kind of egg-shell catalyst and the using method of this catalyst

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee