http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1124706-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e938e28337fbaa9944d781f3ccf86b5e |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C309-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C309-20 |
| filingDate | 1967-02-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1968-08-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1124706-A |
| titleOfInvention | Process for the production of improved surface active aliphatic sulfonates |
| abstract | Detergent compositions containing aliphatic surface-active sulphonates are obtained from aqueous slurry which is produced by reaction of sulphur trioxide with C10-C20 mono-olefinic hydrocarbons, followed by neutralization of the product with strong aqueous alkali at a temperature in the range from 15 DEG to 65 DEG C., rapid heating of the reaction mixture under pressure to 110-200 DEG C., preferably 145-175 DEG C., and maintaining at said temperature range until substantial completion of hydrolysis. The time interval between neutralization and attainment of the hydrolysis temperature must be less than 10 minutes and preferably less than 1 minute. The heating to the hydrolysis temperature may be accomplished by introduction of superheated steam, sufficient water being vaporized from the resulting product after hydrolysis to yield a slurry containing at least 43% by weight of aliphatic surface-active sulphonate. An example of such a composition comprises the sodium salt of the active sulphonate, trisodium polyphosphate, sodium silicate, carboxymethyl cellulose, sodium sulphate and water.ALSO:Aqueous aliphatic surface-active sulphonate slurry is produced by reaction of sulphur trioxide with C10-C20 monoolefinic hydrocarbons, followed by neutralization of the product with strong aqueous alkali at a temperature in the range of from 15 DEG to 65 DEG C., rapid heating of the reaction mixture under pressure to 110-200 DEG C., preferably 145-175 DEG C.; and maintaining at said temperature range until substantial completion of hydrolysis. The time interval between neutralization and arrival at the hydrolysis temperature must be less than 10 minutes and preferably less than 1 minute. The heating to the hydrolysis temperature may be accomplished by introduction of superheated steam, sufficient water being vaporized from the resulting product after the hydrolysis interval to yield a slurry containing at least 43% by weight of aliphatic surface-active sulphonate. The vaporization can be accomplished by a pressure let-down means resulting in flash evaporation of excess water. |
| priorityDate | 1966-02-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 23.