| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_06376d805362e4d41dbab4185be9d886 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C7-171
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C7-005
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C7-10 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C7-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C1-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C15-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C7-171
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C7-00 |
| filingDate |
1982-05-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1985-04-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f0b03944d115b52ea1e337eec7b78a8e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ec824eff4fc90ac4594295261c63d36f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7c474d496934c578f25f2a3302e5db6c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3baff58df513b7d94dd41c97670a6bc0 |
| publicationDate |
1985-04-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CA-1184948-A |
| titleOfInvention |
Producing solvent-grade methyl-naphthalene |
| abstract |
ABSTRACT PRODUCING SOLVENT-GRADE METHYL-NAPHTHALENE A methylnaphthalene-containing coal tar dis-tillation fraction which has already been extracted with base to remove tar acids is treated by three ex-tractions to remove tar bases and impurities which have or form color or odor. No final distillation is required. The first extraction is with about 70-85% sulfuric acid, the second with about 90-100% sulfuric acid and the third with aqueous base such as about 2-25% sodium hydroxide. The resultant methyl-naphthalene is suitable for dye-carrier and other solvent applications. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-106336338-A |
| priorityDate |
1981-07-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |