| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_574bc8fd24e08fc5a292d012c5a28e48 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2103-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2103-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2101-322
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2301-066
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2101-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2101-38 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C201-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-025
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C201-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F9-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-66 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-66
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C201-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F9-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-02 |
| filingDate |
2014-04-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4bbb495bd6d5a6cb8624177fc2cb5409
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_07b4bd282eb85d941944998c68ce5906
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3ac679572eb9da34811c5846b77d9d87
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7e6f6ca630a22d7012a9e75b2de6876d |
| publicationDate |
2015-02-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
TW-201504160-A |
| titleOfInvention |
Method for treating wastewater from the preparation of nifedipine |
| abstract |
The present invention provides a method for treating alkaline wastewater, which is formed in a washing process of crude nitrate obtained by nitration of benzene, wherein (i) the alkaline wastewater is deficient in oxygen Heating to a temperature of 150 ° C to 500 ° C under pressure plus atmospheric pressure; (ii) adding a base to the wastewater obtained in the (i); (iii) further obtaining the wastewater obtained in the (ii) by using The stripping gas is stripped and purified, and the stripped gas stream of the loaded impurities is then cooled to a temperature between 10 ° C and 60 ° C. |
| priorityDate |
2013-04-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |