WO1991001972A1 - Verfahren zur herstellung von hellfarbigen ölsäuresulfonaten - Google Patents
Verfahren zur herstellung von hellfarbigen ölsäuresulfonaten Download PDFInfo
- Publication number
- WO1991001972A1 WO1991001972A1 PCT/EP1990/001248 EP9001248W WO9101972A1 WO 1991001972 A1 WO1991001972 A1 WO 1991001972A1 EP 9001248 W EP9001248 W EP 9001248W WO 9101972 A1 WO9101972 A1 WO 9101972A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- oleic acid
- sulfonation
- acid
- technical
- sulfur trioxide
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C303/00—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides
- C07C303/02—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of sulfonic acids or halides thereof
- C07C303/04—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of sulfonic acids or halides thereof by substitution of hydrogen atoms by sulfo or halosulfonyl groups
- C07C303/06—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of sulfonic acids or halides thereof by substitution of hydrogen atoms by sulfo or halosulfonyl groups by reaction with sulfuric acid or sulfur trioxide
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C303/00—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides
- C07C303/02—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of sulfonic acids or halides thereof
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C303/00—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides
- C07C303/32—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of salts of sulfonic acids
Definitions
- the invention relates to a method for producing light-colored oleic acid sulfonates.
- the color of the sulfonation products depends on the reaction conditions, in particular the contact time in the reactor and the temperature of the starting products fed to the reactor.
- the color of the sulfonation products depends on the amount of sulfur trioxide used, an excess of more than 15 mol%, based on oleic acid, giving poorer colors with only a slight increase in the degree of conversion.
- the color of the sulfonation products depends on the content of polyunsaturated fatty acids in the technical oleic acid used, with a content of more than 3% these polytin-saturated fatty acids lead to poor colors of the sulfonation products.
- Oleic acid sulfonates which result from technical oleic acid qualities with a higher content of polyunsaturated fatty acids using gaseous sulfur trioxide than
- the process of the invention comprises the following steps: a) continuous sulfonation of an industrial oleic acid with an oleic acid content of 65 to 85% by weight and a linoleic acid content up to 13% by weight, the rest (to 100% by weight), other saturated or unsaturated fatty acids with 10 to 22 carbon atoms, with gaseous sulfur trioxide in a molar ratio of olefinic double bonds present in technical oleic acid to sulfur trioxide of 1: 0.8 to 1.0; b) neutralization and hydrolysis of the acidic sulfonation product obtained in stage a) with aqueous bases and c) bleaching of the oleic acid sulfonate obtained in stage b) as an aqueous solution and optionally d) concentration of the aqueous solution of the bleached oleic acid sulfonate obtained in stage c).
- the technical oleic acid to be used in the process of the invention contains other saturated or unsaturated fatty acids with 10 to 22 carbon atoms, ie fatty acids which are not oleic acid and linoleic acid and which are usually present in technical oleic acid qualities as accompanying substances, for example capric, lauric, myristic , Myristoleic, palmitic, palmitoleic, stearic, linolenic, arachic, gadoleic, behenic and erucic acids. Twice and more than twice unsaturated fatty acids which are not linoleic acid can be contained in an amount which is preferably not more than 2% by weight.
- Stage a) the acidic sulfonation product obtained is neutralized with aqueous bases and hydrolyzed.
- the sulfonic acid groups formed in the sulfonation reaction react to form the corresponding salts; Furthermore, sultones which may have formed are hydrolyzed in the course of the sulfonation.
- Typical examples of the aqueous bases which can be used in the neutralization and sulfonation are aqueous solutions, hydroxides of alkali metals such as sodium, potassium or lithium, of oxides or hydroxides or of alkaline earth metals such as magnesium or calcium, ammonia or organic bases such as ethanolamine, diethanolamine or triethanolamine. In general, the use of aqueous sodium hydroxide solution is preferred.
- the oleic acid sulfonate obtained in step b) is bleached; the methods customary in the bleaching of surface-active sulfonates and sulfates can be used here. It is possible and also advantageous for processes on an industrial scale to carry out the neutralization and hydrolysis and bleaching steps simultaneously.
- the bleached reaction product can then, if desired, be concentrated by removing water, for example by distillation.
- a technical oleic acid having a linoleic acid content in the range from 4 to 13% by weight, based on the total weight of technical oleic acid is sulfonated.
- the technical oleic acid is sulfonated with the gaseous sulfur trioxide in a molar ratio of ⁇ lefinis double bonds present in the technical oleic acid
- Sulfur trioxide in the range of 1: 0.90 to 0.98. Within this range, particularly brightly colored oleic acid sulfonates can be obtained after bleaching.
- the sulfonation step of the process of the invention can be carried out in the usual reactors for the reaction of suitable reactants with gaseous sulfur trioxide; such reactors are e.g. in G. Dieckelmann, H.J. Heinz, The Basics of Industrial Oleochemistry, Peter Pomp GmbH, pp. 111 to 128 (1988).
- the sulfonation in reactors of the falling film reactor type is preferred, it being advantageous to use an inert gas containing 1 to 10% by volume of sulfur trioxide for the sulfonation.
- Preferred conditions for the sulfonation are reaction temperatures in the range from 40 to 80, in particular from 40 to 60 ° C.
- the acid is neutralized and hydrolyzed
- Sulfonation products at temperatures in the range of 60 to 95 ° C, in particular 80 to 90 ° C, preferably within 1 to 8 hours and at pH values in the range from 5 to 9.
- the neutralized and hydrolyzed sulfonation product is bleached with aqueous hydrogen peroxide solution.
- Solutions containing 20 to 90% by weight of hydrogen peroxide can be used.
- the hydrogen peroxide solution is used in an amount of 1 to 4% by weight of hydrogen peroxide, based on the active substance content in the neutralized and hydrolyzed
- the bleaching is preferably carried out in the pH range from 5 to 9.
- a distilled technical oleic acid is used as the starting product, e.g. from natural fats and oils by separation in
- Fat cleavage has been obtained and which has been stored under air access for a maximum of 1 month after the distillation.
- the invention is thus based on the knowledge that the following measures - individually or in combination with one another - are used to obtain light-colored oleic acid sulfonates
- Sulfur trioxide, neutralization and hydrolysis and bleaching are important: a molar ratio of technical oleic acid to sulfur trioxide from 1: 0.8 to 1.0, in particular from 1: 0.9 to 0.98, a linoleic acid content of at most 13% by weight, in particular from 4 to 12% by weight; a freshly distilled oleic acid quality as possible, which after distillation should not be lower than 1 month
- Air access should be stored; bleaching with aqueous hydrogen peroxide solutions in an amount corresponding to 0.5 to 4, in particular 1.0 to 2% by weight of hydrogen peroxide, based on the active substance in the aqueous solutions of oleic acid sulfonate obtained.
- Table 1 contains the gas-chromatographically determined compositions (in area percent) and the acid number (SZ) and the iodine number (JZ) for 7 different commercial technical oleic acid qualities to be used according to the invention; the Velcro color number after bleaching.
- the table also contains the corresponding values for a
- the fatty acids determined in the technical oleic acid qualities used are given in an abbreviated form.
- the subscript after the letter C means the number of carbon atoms in the chain;
- C 18 means stearic acid, C 18 'oleic acid, C 18 ''linoleic acid and C 18 ''' linolenic acid.
- the oleic acid qualities nos. 1 to 7 and A used were of the following origin:
- A from rapeseed oil.
- the sulfonation reactions were carried out in a falling film reactor made of glass, which essentially consisted of a tube surrounded by a heating and cooling jacket with a length of 1100 mm and an inner diameter of 6 mm.
- the head of the reactor was equipped with a feed device for oleic acid and with a gas inlet pipe.
- Gaseous sulfur trioxide, produced by heating oleum was diluted with nitrogen to a concentration of 5% by volume of sulfur trioxide and used for the sulfonation.
- the oleic acid was applied at a constant rate of 550 g / h.
- the feed of the sulfur trioxide / nitrogen mixture was adjusted so that the molar ratio of olefinic double bonds present in technical oleic acid (calculated from the iodine number) to sulfur trioxide was 1: 0.90.
- the reaction temperature of the sulfonation was kept at 50 ° C. with the aid of a water circuit through the reactor jacket.
- reaction mixture was collected in a beaker containing 25% by weight sodium hydroxide solution and then heated to 90 ° C. for two hours at a pH of 8 to 9.
- the hydrolyzed product was added in portions at ambient temperature (approx. 20 ° C.) with two% by weight hydrogen peroxide, based on active substance, added in the form of a 35th
- the Klett color number was determined in a Klett-Summerson photometer with a blue filter (400 to 450 nm) using 1 cm round cuvettes in an aqueous solution which contains 5% by weight of detergent substance.
- the velcro color numbers obtained with the abovementioned oleic acid qualities at different storage times and different molar ratios of the double bonds to sulfur trioxide present in the oleic acid mixture used are summarized in Table 2 at the end of the description.
- oleic acid qualities with a linoleic acid content of over 13% provide
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR909007584A BR9007584A (pt) | 1989-08-09 | 1990-07-31 | Processo para a preparacao de sulfonatos de acido oleico de cor clara |
US07/834,252 US5294726A (en) | 1989-08-09 | 1990-07-31 | Process for the preparation of light-colored oleic acid sulfonates |
EP90912433A EP0486582B1 (de) | 1989-08-09 | 1990-07-31 | Verfahren zur herstellung von hellfarbigen ölsäuresulfonaten |
DE59009802T DE59009802D1 (de) | 1989-08-09 | 1990-07-31 | Verfahren zur herstellung von hellfarbigen ölsäuresulfonaten. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP3926344.4 | 1989-08-09 | ||
DE3926344A DE3926344A1 (de) | 1989-08-09 | 1989-08-09 | Verfahren zur herstellung von hellfarbigen oelsaeuresulfonaten |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1991001972A1 true WO1991001972A1 (de) | 1991-02-21 |
Family
ID=6386811
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1990/001248 WO1991001972A1 (de) | 1989-08-09 | 1990-07-31 | Verfahren zur herstellung von hellfarbigen ölsäuresulfonaten |
Country Status (11)
Country | Link |
---|---|
US (1) | US5294726A (de) |
EP (1) | EP0486582B1 (de) |
JP (1) | JPH04507415A (de) |
CN (1) | CN1049335A (de) |
AR (1) | AR246249A1 (de) |
AT (1) | ATE129235T1 (de) |
BR (1) | BR9007584A (de) |
DE (2) | DE3926344A1 (de) |
DK (1) | DK0486582T3 (de) |
ES (1) | ES2077685T3 (de) |
WO (1) | WO1991001972A1 (de) |
Cited By (1)
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Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1278421A (en) * | 1969-06-27 | 1972-06-21 | Lankro Chem Ltd | The sulphonation of unsaturated carboxylic acids |
-
1989
- 1989-08-09 DE DE3926344A patent/DE3926344A1/de not_active Withdrawn
-
1990
- 1990-07-31 WO PCT/EP1990/001248 patent/WO1991001972A1/de active IP Right Grant
- 1990-07-31 US US07/834,252 patent/US5294726A/en not_active Expired - Fee Related
- 1990-07-31 JP JP2511441A patent/JPH04507415A/ja active Pending
- 1990-07-31 BR BR909007584A patent/BR9007584A/pt not_active Application Discontinuation
- 1990-07-31 AT AT90912433T patent/ATE129235T1/de not_active IP Right Cessation
- 1990-07-31 ES ES90912433T patent/ES2077685T3/es not_active Expired - Lifetime
- 1990-07-31 DE DE59009802T patent/DE59009802D1/de not_active Expired - Fee Related
- 1990-07-31 EP EP90912433A patent/EP0486582B1/de not_active Expired - Lifetime
- 1990-07-31 DK DK90912433.1T patent/DK0486582T3/da active
- 1990-08-08 AR AR90317556A patent/AR246249A1/es active
- 1990-08-08 CN CN90106758.XA patent/CN1049335A/zh active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1278421A (en) * | 1969-06-27 | 1972-06-21 | Lankro Chem Ltd | The sulphonation of unsaturated carboxylic acids |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1994001397A1 (de) * | 1992-07-06 | 1994-01-20 | Henkel Kommanditgesellschaft Auf Aktien | Verfahren zur herstellung konzentrierter pasten von alpha-sulfofettsäuresalzen |
Also Published As
Publication number | Publication date |
---|---|
EP0486582A1 (de) | 1992-05-27 |
JPH04507415A (ja) | 1992-12-24 |
DE3926344A1 (de) | 1991-02-28 |
DK0486582T3 (da) | 1996-02-05 |
DE59009802D1 (de) | 1995-11-23 |
BR9007584A (pt) | 1992-06-30 |
ATE129235T1 (de) | 1995-11-15 |
CN1049335A (zh) | 1991-02-20 |
US5294726A (en) | 1994-03-15 |
ES2077685T3 (es) | 1995-12-01 |
AR246249A1 (es) | 1994-07-29 |
EP0486582B1 (de) | 1995-10-18 |
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