GB1532477A - Recovery of isobutylene from mixtures of hydrocarbons as methyl tert.butyl ether - Google Patents

Recovery of isobutylene from mixtures of hydrocarbons as methyl tert.butyl ether

Info

Publication number
GB1532477A
GB1532477A GB4168876A GB4168876A GB1532477A GB 1532477 A GB1532477 A GB 1532477A GB 4168876 A GB4168876 A GB 4168876A GB 4168876 A GB4168876 A GB 4168876A GB 1532477 A GB1532477 A GB 1532477A
Authority
GB
United Kingdom
Prior art keywords
isobutylene
butyl ether
reaction
methanol
sulphuric acid
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
GB4168876A
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.)
Magyar Asvanyolaj es Foldgaz Kiserleti Intezet
Original Assignee
Magyar Asvanyolaj es Foldgaz Kiserleti Intezet
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 Magyar Asvanyolaj es Foldgaz Kiserleti Intezet filed Critical Magyar Asvanyolaj es Foldgaz Kiserleti Intezet
Publication of GB1532477A publication Critical patent/GB1532477A/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

Abstract

1532477 Separating isobutylene by selective reaction MAGYAR ASVANYOLAJ ES FOLDGAZ KISERLETI INTEZET 7 Oct 1976 [29 Oct 1975] 41688/76 Heading C5E [Also in Division C2] Isobutylene is removed as methly t-butyl ether from mixtures containing predominantly isobutylene and other C 4 hydrocarbons by reacting with a stoichiometric excess of the required quantity of methanol in the presence of sulphuric acid catalyst in a homogeneous liquid phase at 50-120‹ C.; after the reaction the mixture is cooled to between -25 and +40‹ C. and a quantity of reaction product from which methanol has been removed and/or a quantity of a C 4 fraction free ofisobutene obtained in the process is added; the sulphuric acid phase which then separates is recirculated to the reaction, and methanol and methyl t-butyl ether are isolated by aqueous washing and distilling the residual mixture which contains sulphuric acid in a reduced quantity. The C 4 hydrocarbon mixtures may be a fraction derived from a catalytic cracking process or from the pyrolysis of gasoline, and may contain butadiene as well as butanes and butenes.
GB4168876A 1975-10-29 1976-10-07 Recovery of isobutylene from mixtures of hydrocarbons as methyl tert.butyl ether Expired GB1532477A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
HUMA002724 HU175954B (en) 1975-10-29 1975-10-29 Process for direct separation of isobutylene form mixtures of hydrocarbones

Publications (1)

Publication Number Publication Date
GB1532477A true GB1532477A (en) 1978-11-15

Family

ID=10998814

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4168876A Expired GB1532477A (en) 1975-10-29 1976-10-07 Recovery of isobutylene from mixtures of hydrocarbons as methyl tert.butyl ether

Country Status (16)

Country Link
JP (1) JPS5257103A (en)
AT (1) AT346297B (en)
BE (1) BE847862A (en)
CA (1) CA1077066A (en)
CS (1) CS205045B2 (en)
DD (1) DD126591A1 (en)
DE (1) DE2649623A1 (en)
FR (1) FR2329622A1 (en)
GB (1) GB1532477A (en)
HU (1) HU175954B (en)
IT (1) IT1079198B (en)
NL (1) NL7611965A (en)
PL (1) PL110592B1 (en)
RO (1) RO71263A (en)
SU (1) SU915797A3 (en)
YU (1) YU39977B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0042252A1 (en) * 1980-06-12 1981-12-23 The British Petroleum Company p.l.c. Isobutene by dehydroisomerisation of normal butane

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2928509A1 (en) * 1979-07-14 1981-01-29 Basf Ag METHOD FOR THE SIMULTANEOUS PRODUCTION OF METHYL-TERT.-BUTYL ETHER AND PRODUCTION OF ISOBUTEN
DE2928510A1 (en) * 1979-07-14 1981-01-29 Basf Ag METHOD FOR PRODUCING ISOBUTEN FROM ISOBUTEN CONTAINING C TIEF 4-HYDROCARBON MIXTURES
CN113582801B (en) * 2020-04-30 2023-09-05 中国石油化工股份有限公司 Process for preparing isooctenes by mixing carbon four selective overlapping

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3121124A (en) * 1959-05-04 1964-02-11 Sinclair Research Inc Tertiary olefin separation via etherification
US3170000A (en) * 1962-10-24 1965-02-16 Sinclair Research Inc Tertiary olefin separation via etherification with small surface area catalysts
JPS5126401B1 (en) * 1969-03-12 1976-08-06

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0042252A1 (en) * 1980-06-12 1981-12-23 The British Petroleum Company p.l.c. Isobutene by dehydroisomerisation of normal butane

Also Published As

Publication number Publication date
SU915797A3 (en) 1982-03-23
DD126591A1 (en) 1977-07-27
ATA712976A (en) 1978-03-15
YU39977B (en) 1985-06-30
BE847862A (en) 1977-02-14
NL7611965A (en) 1977-05-03
IT1079198B (en) 1985-05-08
FR2329622B1 (en) 1980-07-25
JPS5614089B2 (en) 1981-04-02
AT346297B (en) 1978-11-10
YU253076A (en) 1982-05-31
CA1077066A (en) 1980-05-06
DE2649623A1 (en) 1977-05-12
RO71263A (en) 1981-06-26
HU175954B (en) 1980-11-28
JPS5257103A (en) 1977-05-11
PL110592B1 (en) 1980-07-31
FR2329622A1 (en) 1977-05-27
CS205045B2 (en) 1981-04-30

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Legal Events

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