GB1094523A – Process for the purification of dimethyl sulphoxide
– Google Patents
GB1094523A – Process for the purification of dimethyl sulphoxide
– Google Patents
Process for the purification of dimethyl sulphoxide
Info
Publication number
GB1094523A
GB1094523A
GB9108/65A
GB910865A
GB1094523A
GB 1094523 A
GB1094523 A
GB 1094523A
GB 9108/65 A
GB9108/65 A
GB 9108/65A
GB 910865 A
GB910865 A
GB 910865A
GB 1094523 A
GB1094523 A
GB 1094523A
Authority
GB
United Kingdom
Prior art keywords
organic solvent
aqueous extract
aromatic hydrocarbons
water
phase
Prior art date
1964-03-12
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
GB9108/65A
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.)
Merck and Co Inc
Original Assignee
Merck and Co Inc
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.)
1964-03-12
Filing date
1965-03-03
Publication date
1967-12-13
1965-03-03
Application filed by Merck and Co Inc
filed
Critical
Merck and Co Inc
1967-12-13
Publication of GB1094523A
publication
Critical
patent/GB1094523A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
IAZDPXIOMUYVGZ-UHFFFAOYSA-N
Dimethylsulphoxide
Chemical compound
CS(C)=O
IAZDPXIOMUYVGZ-UHFFFAOYSA-N
0.000
title
abstract
2
229960001760
dimethyl sulfoxide
Drugs
0.000
title
abstract
2
238000000034
method
Methods
0.000
title
1
238000000746
purification
Methods
0.000
title
1
239000003960
organic solvent
Substances
0.000
abstract
7
239000006286
aqueous extract
Substances
0.000
abstract
4
150000004945
aromatic hydrocarbons
Chemical class
0.000
abstract
3
XLYOFNOQVPJJNP-UHFFFAOYSA-N
water
Substances
O
XLYOFNOQVPJJNP-UHFFFAOYSA-N
0.000
abstract
3
239000000203
mixture
Substances
0.000
abstract
2
125000000217
alkyl group
Chemical group
0.000
abstract
1
150000002148
esters
Chemical class
0.000
abstract
1
150000002170
ethers
Chemical class
0.000
abstract
1
229930195733
hydrocarbon
Natural products
0.000
abstract
1
150000002430
hydrocarbons
Chemical class
0.000
abstract
1
239000007788
liquid
Substances
0.000
abstract
1
239000012188
paraffin wax
Substances
0.000
abstract
1
Classifications
C—CHEMISTRY; METALLURGY
C07—ORGANIC CHEMISTRY
C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
C07C317/00—Sulfones; Sulfoxides
Abstract
Substantially odourless dimethyl sulphoxide (D.M.S.O.) having a U.V. absorbence at a wavelength of 290 millimicrons less than 0.10 using air as a standard is obtained by treating impure D.M.S.O. with an organic solvent selected from halogenated paraffin hydrocarbons, aromatic hydrocarbons, halogenated aromatic hydrocarbons, C1- 4 alkyl derivatives of aromatic hydrocarbons, esters and ethers, to form an organic solvent solution of D.M.S.O.; intimately contacting said organic solvent solution with water to form a uniform mixture, whereby D.M.S.O. is extracted from the organic solvent solution into the water, thereby forming an aqueous extract solution of D.M.S.O.; allowing the mixture to settle into a distinct organic solvent phase and a distinct aqueous extract phase containing D.M.S.O.; separating the aqueous extract phase from the organic solvent phase, and fractionally distilling the aqueous extract phase under conditions such that the liquid bottoms temperature does not exceed 108 DEG C. The organic solvent is preferably employed in an amount of 1 to 10 volumes per volume of D.M.S.O. and the preferred amount of water employed is 0.25 to 3 volumes per volume of D.M.S.O. being extracted.
GB9108/65A
1964-03-12
1965-03-03
Process for the purification of dimethyl sulphoxide
Expired
GB1094523A
(en)
Applications Claiming Priority (2)
Application Number
Priority Date
Filing Date
Title
US35153864A
1964-03-12
1964-03-12
US428542A
US3358036A
(en)
1964-03-12
1965-01-27
Purification of dimethyl sulfoxide
Publications (1)
Publication Number
Publication Date
GB1094523A
true
GB1094523A
(en)
1967-12-13
Family
ID=26997142
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB9108/65A
Expired
GB1094523A
(en)
1964-03-12
1965-03-03
Process for the purification of dimethyl sulphoxide
Country Status (8)
Country
Link
US
(1)
US3358036A
(en)
BR
(1)
BR6567807D0
(en)
CH
(1)
CH504419A
(en)
DE
(1)
DE1243179B
(en)
FR
(1)
FR1440679A
(en)
GB
(1)
GB1094523A
(en)
NL
(1)
NL6502994A
(en)
SE
(1)
SE343575B
(en)
Families Citing this family (5)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3450508A
(en)
*
1966-09-01
1969-06-17
United Nuclear Corp
Extraction of salts from saline water using dimethylsulfoxide
FR2741341B1
(en)
*
1995-11-17
1997-12-26
Elf Aquitaine
DIMETHYLSULFOXIDE (DMSO) PURIFICATION PROCESS
WO2014178309A1
(en)
2013-04-30
2014-11-06
東レ・ファインケミカル株式会社
Method for purifying dimethyl sulfoxide
CN104119256B
(en)
*
2014-07-28
2016-08-31
福州福大辉翔化工科技有限公司
A kind of dimethyl sulfoxide (DMSO) method of purification and equipment
CN113105396A
(en)
*
2019-12-12
2021-07-13
林齐坤
Method for treating dye vat blue RSN dimethyl sulfoxide mother liquor
Family Cites Families (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3154576A
(en)
*
1960-08-17
1964-10-27
Bray Oil Co
Sulfonate extraction with dimethyl sulfoxide
1965
1965-01-27
US
US428542A
patent/US3358036A/en
not_active
Expired – Lifetime
1965-03-03
GB
GB9108/65A
patent/GB1094523A/en
not_active
Expired
1965-03-09
NL
NL6502994A
patent/NL6502994A/xx
unknown
1965-03-11
CH
CH338365A
patent/CH504419A/en
not_active
IP Right Cessation
1965-03-11
SE
SE3201/65A
patent/SE343575B/xx
unknown
1965-03-11
DE
DEM64496A
patent/DE1243179B/en
active
Pending
1965-03-12
BR
BR167807/65A
patent/BR6567807D0/en
unknown
1965-03-12
FR
FR9105A
patent/FR1440679A/en
not_active
Expired
Also Published As
Publication number
Publication date
NL6502994A
(en)
1965-09-13
CH504419A
(en)
1971-03-15
US3358036A
(en)
1967-12-12
SE343575B
(en)
1972-03-13
BR6567807D0
(en)
1973-08-07
FR1440679A
(en)
1966-06-03
DE1243179B
(en)
1967-06-29
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