http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2301254-C2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a7ab742ed21b19038724c3e2f4109cdd http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_dd95b62c6e998de195f2eb2932974ecd |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K23-42 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10G33-04 |
| filingDate | 2005-08-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2007-06-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_73028cb612f2124d7ba69fe5b35f9c25 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3e416027b3ddec24b4988fb6aa6569c9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5cc1554f1b20ffe95afc14b3ffb87bdb http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a5ddb65f7e74b88924c946cbfd9e40f6 |
| publicationDate | 2007-06-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2301254-C2 |
| titleOfInvention | Method of preparing water-oil emulsion demulsifier preventing formation of asphalt-tar-paraffin deposits and oil-field equipment corrosion |
| abstract | FIELD: crude oil treatment. n SUBSTANCE: in particular, invention relates to demulsifiers for destroying stable water-oil emulsions formed by crude oils having different composition. Demulsifier preparation procedure involves condensation of industrial-grade isononylphenol or mixture of monoalkylphenol fraction C 4 -C 9 with formalin in presence of catalyst at heating, phenol-to-formaldehyde molar ratio being 1:1.5. Condensation product is diluted in hot state in high-boiling hydrocarbon solvent, after which product is subjected to oxyethylation in presence of alkali catalyst to achieve content of oxyethyl groups 49-53% and to form target product. To prepare commercial form, product is dissolved in a mixed solvent at 3:1 ratio, mixed solvent preferably being comprised of methanol and butyl cellosolve at 1:1 ratio or methanol and brake fluid at 5:1 ratio. n EFFECT: extended resource of demulsifying agents for destroying crude oil emulsions. n 3 cl, 4 tbl, 4 ex |
| priorityDate | 2005-08-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 36.