http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S63270796-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d9cb217f83556ce2a418344c2d485415 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K23-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10L10-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10L1-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K23-52 |
| filingDate | 1987-08-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_71a300fea7941e573dac73e086523ee8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e44a57b9cc40ce4f59851b97e93690db http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_97123d7864171706b30f1d8aaf0a3002 |
| publicationDate | 1988-11-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S63270796-A |
| titleOfInvention | Production of dispersant for coal-water slurry |
| abstract | PURPOSE: To obtain readily the title dispersant which gives a high-concn. coal- water slurry, by sulfonating a particular fraction of an oil produced by fluid catalytic cracking of a crude oil, optionally followed by formaldehyde condensation, and then performing neutralization in an alkali substance. n CONSTITUTION: Sulfonation of 100pts.wt. oil (A) obtd. by catalytic cracking of a crude oil which has a reduced b.p. of 300W500°C at 1atm, pref. 300W450°C and may be a high cycle oil taken out pref. in the fluid catalytic cracking of a vacuum light oil produced by atmospheric distillation, direct desulfurization and vacuum distillation of a crude oil, with 50W500pts. sulfonating agent (B) (e.g., fuming sulfunic acid) is performed at 60W100°C for 0.5W10hr, optionally in a solvent, thereby obtaining a sulfonate having a sulfur content of 10W20wt.% and an average MW of 400 or more. Then, 100pts. sulfonate is optionally converted into formaldehyde condensate using 50W300pts. water (C) and 50W300pts. formaldehyde (D), and neutralization with an alkali substance (E) (e.g., ammonia), thereby obtaining the title dispersant. This dispersant is added to a coal-water slurry in an amt. of 0.01W5wt.% based on the wt. of the slurry. n COPYRIGHT: (C)1988,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108913242-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108913242-B |
| priorityDate | 1986-12-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 31.