http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113443979-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_4d9861ef5c78385b09d0dbf149799d87 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-10 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-265 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-009 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-38 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-265 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C63-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D3-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-43 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-42 |
| filingDate | 2015-02-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7857b3c88c233c58f9f94b6f338b70b1 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2524d39bcec20b37a7a87b616ef6ba87 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1de325f85c42595dc9f158cdb0da2890 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a47ef90b0e0094dbdaaf279ae5d33c93 |
| publicationDate | 2021-09-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-113443979-A |
| titleOfInvention | Preparation of aromatic dicarboxylic acids |
| abstract | The present invention provides a process for recovering a derivative of an organic solvent from a first process stream in a process for the preparation of an aromatic dicarboxylic acid, the first process stream comprising the organic solvent, water and the derivative of the organic solvent, the process for the preparation of an aromatic dicarboxylic acid comprising catalytic oxidation of a hydrocarbon precursor in the organic solvent in an oxidation reactor, the process for recovering the derivative of the organic solvent comprising the steps of: i) feeding the first process stream to a stripping apparatus comprising a stripping column and a sump; ii) removing the purified organic solvent stream from the sump; and iii) passing the overhead stream from the stripper to a condenser, wherein the mass concentration of the derivative of the organic solvent in the purified organic solvent stream removed from the sump in step ii) is lower than the mass concentration of the derivative of the organic solvent in the first process stream fed to the stripper in step i), and, optionally, wherein the mass concentration of the derivative of the organic solvent in the overhead stream passed to the condenser in step iii) is greater than the mass concentration of the derivative of the organic solvent in the first process stream fed to the stripper in step i). The invention also provides a device for implementing the method. |
| priorityDate | 2014-10-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 43.