http://rdf.ncbi.nlm.nih.gov/pubchem/patent/PL-194356-B1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ead90443277482e25bf91bfddef2b5a7 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B35-532 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B31-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B35-532 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B35-528 |
| filingDate | 1999-01-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c93019952f8cb4e35530bb5d0464a25f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f580e04c50e6db33176f0c213b487cd4 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_039fbed7b37189b359b5cf8108a86733 |
| publicationDate | 2007-05-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | PL-194356-B1 |
| titleOfInvention | The method of producing needle coke for graphite electrodes |
| abstract | This invention relates to a process for preparing needle coke for graphite electrodes which comprises treating coal- tar or petroleum-based needle coke with a solution or suspension of iron oxide or a compound forming iron oxide by undergoing reaction or decomposition upon heating with coke until adhesion of 0.1 to 15% by weight of the iron compound to the needle coke before kneading with binder pitch and then heat treatming at 300 to 1,600 DEG C or calcining at 1,200 to 1,600 DEG C. The process of this invention makes it possible to prepare needle coke with reduced puffing during the graphitization, increased yield during the graphitizing step and improved product properties such as strength regardless of whether the raw material coke is derived from coal or petroleum. |
| priorityDate | 1998-01-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 43.