GB771581A - Improvements in or relating to the production of oil-soluble petroleum sulphonic acids - Google Patents
Improvements in or relating to the production of oil-soluble petroleum sulphonic acidsInfo
- Publication number
- GB771581A GB771581A GB1146755A GB1146755A GB771581A GB 771581 A GB771581 A GB 771581A GB 1146755 A GB1146755 A GB 1146755A GB 1146755 A GB1146755 A GB 1146755A GB 771581 A GB771581 A GB 771581A
- Authority
- GB
- United Kingdom
- Prior art keywords
- oil
- per cent
- sulphuric acid
- sulphonation
- treatment
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C309/00—Sulfonic acids; Halides, esters, or anhydrides thereof
- C07C309/01—Sulfonic acids
- C07C309/62—Sulfonated fats, oils or waxes of undetermined constitution
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Oil-soluble petroleum sulphonic acids are produced by treating a hydrocarbon oil fraction with concentrated sulphuric acid in such an amount and of such concentration as to remove therefrom substantially only those hydrocarbons which, upon sulphation, yield water-soluble sulphonic acids, prior to the sulphonation of the hydrocarbon fraction with fuming sulphuric acid or sulphur trioxide. The amount of sulphuric acid used in the pre-treatment may be in the range of 45 to 55 per cent by weight of the hydrocarbon oil fraction, and may have a strength of 90 to 100 per cent, preferably 98 per cent, by weight. The hydrocarbon fraction may have a viscosity of 20 to 100 cs. at 60 DEG C. and the treatment is preferably effected at 10 DEG to 35 DEG C. The sulphonation may be effected by dissolving the oil in liquid sulphur dioxide and treating the solution with oleum at - 10 DEG C. When sulphur trioxide is used for sulphonation a temperature of 20-50 DEG C. is suitable. It is possible to use solvent refining (e.g. with liquid sulphur dioxide) as a pre-treatment in conjunction with the sulphuric acid treatment but lower yields of oil-soluble sulphonic acids result. The starting material may be a distillate from a waxfree crude oil. When using a wax-bearing crude and sulphonating with oleum at low temperature it is necessary to de-wax prior to the pretreatment. In examples: (1) a light engine distillate, from a wax-free crude, is treated at 20-50 DEG C. with 45 per cent by weight of 98 per cent sulphonic acid and, after settling off the acid sludge, the treated oil is dissolved in sulphur dioxide at - 10 DEG C. and treated with oleum; after removal of sulphur dioxide and spent sulphuric acid the sulphonation product is neutralized with aqueous caustic soda to yield a sodium sulphonate; (2) the distillate, pretreated as in (1) is sulphonated at 20 DEG C. with a sulphur trioxide/air mixture, then neutralized with caustic soda to give a sodium sulphonate. U.S.A. Specification 2,680,716 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1146755A GB771581A (en) | 1955-04-20 | 1955-04-20 | Improvements in or relating to the production of oil-soluble petroleum sulphonic acids |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1146755A GB771581A (en) | 1955-04-20 | 1955-04-20 | Improvements in or relating to the production of oil-soluble petroleum sulphonic acids |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB771581A true GB771581A (en) | 1957-04-03 |
Family
ID=9986787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1146755A Expired GB771581A (en) | 1955-04-20 | 1955-04-20 | Improvements in or relating to the production of oil-soluble petroleum sulphonic acids |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB771581A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6508895B2 (en) | 1998-09-09 | 2003-01-21 | United States Gypsum Co | Method of producing gypsum/fiber board |
| US7897079B2 (en) | 2006-09-21 | 2011-03-01 | United States Gypsum Company | Method and apparatus for scrim embedment into wet processed panels |
-
1955
- 1955-04-20 GB GB1146755A patent/GB771581A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6508895B2 (en) | 1998-09-09 | 2003-01-21 | United States Gypsum Co | Method of producing gypsum/fiber board |
| USRE41592E1 (en) | 1998-09-09 | 2010-08-31 | Gladys Cedella Cormier | Method of producing gypsum/fiber board |
| US7897079B2 (en) | 2006-09-21 | 2011-03-01 | United States Gypsum Company | Method and apparatus for scrim embedment into wet processed panels |
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