| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b62a061db267544224c10495ee0cd640
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_02ff914937eb6ceaee5ca69cc56cbfa7 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10C1-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10C3-002
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10C3-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10C3-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D01F9-155
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D01F9-15
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10C1-19
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10C3-08 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10C3-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10C3-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10C3-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10C3-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10C1-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10C3-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01F9-145
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10C1-19
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01F9-155
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01F9-15
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10C1-18 |
| filingDate |
1986-05-19^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1281cb507d4528122a593753f1b9cd35
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_de2169bf90d6632694640e153974beb5
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_09a5e956da7e6ff7e90829d288b106da |
| publicationDate |
1987-11-25^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-S62270685-A |
| titleOfInvention |
Production of mesophase pitch |
| abstract |
PURPOSE: To produce the title pitch having a low softening point, a high mesophase content, a low quinoline-insoluble matter content and a low xylene-soluble matter content, by heating a specified high-molecular bitumen under a reduced pressure or in an inert gas stream. n CONSTITUTION: Coal or petroleum heavy oil or a heavy oil component obtd. by distilling or heat-treating said heavy oil is added to a monocyclic arom. hydrocarbon solvent in an amount of 1W3 times that of the heavy oil. The resulting insoluble matter is removed by centrifugation or filtration. The monocyclic hydrocarbon is then removed by distillation to obtain the purified heavy oil or heavy component. The purified product is then heated at 450W550°C under a pressure of 4W50kg/cm 2 G and at a residence time of 30W1,000sec in a tubular heating oven in the presence or absence of arom. oil which is used in an amount of 0W1 time as much as that of said purified product and in which no matter insoluble in the monocyclic arom. hydrocarbon solvent is formed when heat-treated at 200W450°C. The monocyclic arom. hydrocarbon solvent in an amount of 1W3 times that of the purified heavy oil is added thereto. The resulting insoluble matter is removed to obtain a high-molecular bitumen. The bitumen is heated in the presence of a hydrogen-donating solvent, hydro genated and then heated under a reduced pressure or in an inert gas stream. n COPYRIGHT: (C)1987,JPO&Japio |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105199766-A |
| priorityDate |
1986-05-19^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |