http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1216926-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_171f980d7cd1fe54aa78224dbe7f216d |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07B61-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-60 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-76 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-60 |
| filingDate | 1968-11-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1970-12-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1216926-A |
| titleOfInvention | Process for purifying high boiling esters |
| abstract | 1,216,926. Purification of esters. MELLEBEZONS. 14 Nov., 1968 [26 Feb., 1968], No. 54164/68. Heading C2C. [Also in Division B1] Esters (B.P. above 200‹ C.) prepared by reaction of an aliphatic monohydric alcohol and carboxylic acid or anhydride in the presence of sulphuric acid are purified by hydrolysing the alkyl hydrogen sulphate in the raw esterification mixture by heating the mixture in the presence of water prior to neutralization and water-washing of the ester. The hydrolysis may be at elevated temperature, e.g. 80‹ to 150‹ C., and under pressure and may be carried out batchwise or continuously in an apparatus through which the reactants are passed cocurrently or counter-currently. The aqueous sulphuric phase after the hydrolysis may be separated from the ester by decantation or is directly neutralized. Examples describe the purification of di-n-butyl phthalate, di-(2-ethyl hexyl) phthalate, di-(3,5,5-trimethyl decyl) phthalate, and 2-ethyl hexyl 2-ethyl hexanoate. |
| priorityDate | 1968-02-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 31.