| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f6e960aa6ad2ba6401030159343ebe68 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2219-3221
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2219-32227
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2219-3222
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2219-32244
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2219-32466 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J19-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C63-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-265
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-009 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J19-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D3-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J19-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-265
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C63-26 |
| filingDate |
1994-03-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1997-05-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5a55e7e5f8a819c815f0071f1ef52563
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8c755a714f68fd333a8918fe54ef3315
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e13ae13aa515c48b4897dfa26aa1ec26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e70933f46c1aece38f97bd0dea35c7c5 |
| publicationDate |
1997-05-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
RU-2079480-C1 |
| titleOfInvention |
Method and plant for production of terephthalic acid |
| abstract |
FIELD: industrial organic syntheses. SUBSTANCE: method and plant for economical production of terephthalic acid by way of oxidizing p- xylene in acetic acid-based solvent in oxidation reactor connected with compactly designed distillation column providing efficient isolation of p-xylene and acetic acid without clogging distillation column are distinguished in the following. p-Xylene and oxygen- containing gas are fed into oxidation reactor having in its lower part collecting plate for solids consisting of perforated wavy plates and, above this collecting plate, a charge bed and, above the charge bed, distributor plate for liquid promoting p-xylene oxidation. Oxidizing off-gas is directed into distillation column, whereas finely dispersed solids are collected by agency of collecting plate. Distillation of substances contained in oxidizing off-gas is performed through charge bed accompanied with removal of heat and water from column and recycling of separated p-xylene and acetic acid into oxidation reactor. EFFECT: enhanced efficiency of process. 7 cl |
| priorityDate |
1993-03-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |