http://rdf.ncbi.nlm.nih.gov/pubchem/patent/TW-I681949-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c0444efde206a2f829562761e58b7e1e |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-468 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-464 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-343 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B3-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-009 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C53-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-4294 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07B61-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C53-08 |
| filingDate | 2016-09-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-01-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_76d313d9eb84f797bee83bf326374f4f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c620299df7d00907ef7e52b3ccd07712 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cd2c054ed908afd014d86724adc5a117 |
| publicationDate | 2020-01-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | TW-I681949-B |
| titleOfInvention | Acetic acid manufacturing method |
| abstract | The acetic acid production method of the present invention includes a reaction step, a first purification step, a second purification step, and a third purification step. In the reaction step, in the reaction tank (1), acetic acid is produced by a carbonylation reaction of methanol from a raw material mixture containing methanol, carbon monoxide, catalyst, and iodide. In the first purification step, in the distillation column (3), the crude acetic acid stream containing acetic acid generated in the reaction step is subjected to distillation treatment to obtain a concentrated first acetic acid stream of acetic acid. In the second purification step, in the distillation column (5), the first acetic acid stream is subjected to distillation treatment to obtain a second acetic acid stream that is more concentrated in acetic acid. In the third refining step, in an additional refining unit (for example, distillation column (6)), the corrosive iodine concentration of the acetic acid stream flowing through the unit is controlled to 100 ppm or less, and the acetic acid stream is subjected to refining treatment to obtain acetic acid A more concentrated third acetic acid stream. The aforementioned acetic acid production method is suitable for suppressing corrosion of acetic acid production equipment. |
| priorityDate | 2015-09-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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