GB1070749A

GB1070749A – Purification of vinyl chloride
– Google Patents

GB1070749A – Purification of vinyl chloride
– Google Patents
Purification of vinyl chloride

Info

Publication number
GB1070749A

GB1070749A
GB30462/64A
GB3046264A
GB1070749A
GB 1070749 A
GB1070749 A
GB 1070749A
GB 30462/64 A
GB30462/64 A
GB 30462/64A
GB 3046264 A
GB3046264 A
GB 3046264A
GB 1070749 A
GB1070749 A
GB 1070749A
Authority
GB
United Kingdom
Prior art keywords
vinyl chloride
alkyl
preferred
fed
purified
Prior art date
1963-07-18
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
GB30462/64A
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.)

Monsanto Co

Original Assignee
Monsanto 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.)
1963-07-18
Filing date
1964-08-04
Publication date
1967-06-01

1964-08-04
Application filed by Monsanto Co
filed
Critical
Monsanto Co

1967-06-01
Publication of GB1070749A
publication
Critical
patent/GB1070749A/en

Status
Expired
legal-status
Critical
Current

Links

Espacenet

Global Dossier

Discuss

Classifications

C—CHEMISTRY; METALLURGY

C07—ORGANIC CHEMISTRY

C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS

C07C17/00—Preparation of halogenated hydrocarbons

C07C17/38—Separation; Purification; Stabilisation; Use of additives

Abstract

Vinyl chloride containing HCl as an impurity is purified by distilling said vinyl chloride in the presence of a compound containing at least one vic-epoxy group. Preferred epoxy compounds are those of the formula where R is hydrogen or an alkyl, cycloalkyl, alkenyl, cycloalkenyl, aryl, aralkyl or alkaryl radical and R1 is hydrogen or an alkyl radical. It is advantageous to use a 1-20 molar excess of epoxide based on the amount of HCl in the vinyl chloride. If styrene oxide is used as the epoxy compound, it is preferred to effect the distillation in the presence of pyridine or an alkyl pyridine as this prevents the isomerization of styrene to phenylacetaldehyde. In the preferred mode of operation, the impure vinyl chloride is fed to the bottom of a fractionation column and the epoxide, or a solution thereof, is introduced at a point at least several trays above the point at which the vinyl chloride is fed; the purified vinyl chloride is obtained as the overhead product. Examples are provided.

GB30462/64A
1963-07-18
1964-08-04
Purification of vinyl chloride

Expired

GB1070749A
(en)

Applications Claiming Priority (2)

Application Number
Priority Date
Filing Date
Title

US296079A

US3278397A
(en)

1963-07-18
1963-07-18
Removal of hci from vinyl chloride by distillation in the presence of styrene oxide and a pyridine

US296075A

US3303107A
(en)

1963-07-18
1963-07-18
Purification of vinyl chloride containing hci as an impurity by distillation in the presence of an epoxy compound

Publications (1)

Publication Number
Publication Date

GB1070749A
true

GB1070749A
(en)

1967-06-01

Family
ID=26969471
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

GB30462/64A
Expired

GB1070749A
(en)

1963-07-18
1964-08-04
Purification of vinyl chloride

Country Status (5)

Country
Link

US
(2)

US3303107A
(en)

DE
(1)

DE1289525B
(en)

ES
(1)

ES302203A1
(en)

GB
(1)

GB1070749A
(en)

NL
(2)

NL6408222A
(en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US3399119A
(en)

*

1966-07-08
1968-08-27
Marathon Oil Co
Reaction and distillation process for nu-containing solvents from mixtures thereof with hydrogen halides

CA1058223A
(en)

*

1973-04-05
1979-07-10
Ronald G. Tigner
Removal of hbr from brominated pentaerythritols

US3876509A
(en)

*

1971-08-04
1975-04-08
Dow Chemical Co
Azeotropically removing hbr from brominated pentaerythritols and reacting with an epoxy

FR2234252B1
(en)

*

1973-06-20
1978-03-17
Rhone Progil

US3951754A
(en)

*

1974-02-19
1976-04-20
Liakumovich Alexandr Grigoriev
Method of inhibiting the thermopolymerization of isoprene and butadiene

WO2009042344A1
(en)

*

2007-09-25
2009-04-02
Albemarle Corporation
Methods of removing impurities from alkyl bromides during distillation and distillate produced thereby

Family Cites Families (9)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US2371645A
(en)

*

1943-09-16
1945-03-20
Westvaco Chlorine Products Cor
Degreasing process

NL66626C
(en)

*

1946-09-26
1950-11-15

BE545081A
(en)

*

1955-02-09

US2887516A
(en)

*

1956-11-23
1959-05-19
Sicedison Spa
Stabilization of the trichloroethylene and stabilizing product therefor

DE1122513B
(en)

*

1956-11-23
1962-01-25
Sicedison Spa

Stabilization of trichlorethylene against decomposition

BE562288A
(en)

*

1957-11-09

DE1127346B
(en)

*

1957-12-19
1962-04-12
Solvay

Stabilization of trichlorethylene, tetrachlorethylene and other aliphatic chlorinated hydrocarbons against decomposition

US2973392A
(en)

*

1958-08-15
1961-02-28
Canadian Ind
Stabilization of halohydrocarbons

US3043888A
(en)

*

1959-02-09
1962-07-10
Pittsburgh Plate Glass Co
Stabilization

0

NL
NL130290D
patent/NL130290C/xx
active

1963

1963-07-18
US
US296075A
patent/US3303107A/en
not_active
Expired – Lifetime

1963-07-18
US
US296079A
patent/US3278397A/en
not_active
Expired – Lifetime

1964

1964-07-17
NL
NL6408222A
patent/NL6408222A/xx
unknown

1964-07-17
ES
ES0302203A
patent/ES302203A1/en
not_active
Expired

1964-07-17
DE
DEM61775A
patent/DE1289525B/en
active
Pending

1964-08-04
GB
GB30462/64A
patent/GB1070749A/en
not_active
Expired

Also Published As

Publication number
Publication date

ES302203A1
(en)

1965-01-01

NL6408222A
(en)

1965-01-19

US3303107A
(en)

1967-02-07

US3278397A
(en)

1966-10-11

DE1289525B
(en)

1969-02-20

NL130290C
(en)

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(en)

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(en)

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