| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a45c49a5f183b62e0c756e7559913754 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C309-28 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C309-28 |
| filingDate |
1976-12-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1978-11-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_57a44adb992c13e7b1f338940d5ac318
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fd3994ea427a32b1bca2af774cf986f6
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9d9217455649c31646023d52426477f8
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a792cbb3592c52982d193a3d06dfb80d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9a7967930f1d7f34fd920ab517cccb93 |
| publicationDate |
1978-11-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4124606-A |
| titleOfInvention |
Sulfonation of anthraquinone in sulfur dioxide solvent |
| abstract |
Sulfonation of anthraquinone by a sulfur trioxide component including SO3 or oleum in a liquid sulfur dioxide solvent. When a mercury catalyst is used to give alpha anthraquinone sulfonate products, most of the mercury is left in the reactor or recovered with unreacted anthraquinone by precipitation with water after vaporization of the sulfur dioxide. High sulfuric acid and mercury pollution are thus avoided. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11008284-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2017174207-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2017174206-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2022000431-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EA-038804-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2019152902-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11450854-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11773537-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10422727-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-4180504-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11788228-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2019516781-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11225756-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2018146344-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2018146343-A1 |
| priorityDate |
1976-12-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |