http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1266599-A
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-786 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-78 |
| filingDate | 1969-09-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1972-03-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1266599-A |
| abstract | 1,266,599. Acetone concentration. IMPERIAL CHEMICAL INDUSTRIES Ltd. 21 Sept., 1970 [30 Sept., 1969], No. 48067/69. Heading C2C. Acetone having an acetone content exceeding 99% by weight is obtained by bringing an acetone/water mixture in the liquid phase into contact with one side of a non-porous hydrophilic membrane and removing a permeate rich in water from the other side either as vapour (e.g. by applying reduced pressure) or by passing over the membrane a liquid or gaseous stripping fluid. The membrane may be formed of a nylon, regenerated cellulose, a cellulose ether or a polyvinyl alcohol which may contain some residual acetylation. The membrane may be in the form of hollow fibres, through which or over which the acetone passes. Temperatures of 0‹ to 200‹ C. are mentioned. Preferably the feed acetone contains more than 95% acetone. |
| priorityDate | 1969-09-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 12.