http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103012102-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9fe3f047eb7fab0a429004e297f77297 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ddac65606de3b966e6f33acf1f1407c8 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C53-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-46 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C63-26 |
| filingDate | 2011-09-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2014-09-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bd62ce75adf8b761577823a1296b1cd1 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_17d262b359d7d74474ea8cd93fa38bef http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4d6871ae79571bc95b74e9646acaa5c0 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8bc6c00f8f1924597645eecbfa357145 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_adf9f583871b2a46933816338a04e2f8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_40761c661aab065a8bf1dc8e2fbd478d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c0123745c4bf08a373a4eafa3b594f94 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_05ccf9de5b81717ce8d6fd242dc98fde http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d1b81b183a97c9f4abdeb0694f900d65 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_059bece775e13b29f287e25f4f8db4bd |
| publicationDate | 2014-09-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103012102-B |
| titleOfInvention | Method of recovering acetic acid and water in production of aromatic carboxylic acid |
| abstract | A method of recovering acetic acid and water in the production of aromatic carboxylic acid adopts a separation technology of combined four towers which comprise an extracting tower, an azeotropic rectifying tower, a solvent extraction pro-tower and a solvent extraction tower connected orderly. The separation technology comprises the following steps: carrying out extraction, azeotropic distillation and solvent separation on the materials to obtain the water and the acetic acid, wherein the material with high water content is extracted first, then is combined with other materials for azeotropic distillation, the extraction and the azeotropic distillation adopt the same acetic ester separating agent, and the solvent recovery tower system adopts the compositive energy conservation combined technology. By adopting the method in the invention to separate and recover the acetic acid and water in the production of aromatic carboxylic acid, the organic matter in the water is less than or equal to 100ppm, the water and the acetic acid recovered can be used in the production system of aromatic carboxylic acid, thereby reducing the acid consumption and waste water discharge in the productive process. The method has low-cost separating agent, reasonable technology, is energy-saving and efficient in the separation process, and can save energy consumption by 20-30%, and reduce operating cost by 10-20%. |
| priorityDate | 2011-09-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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