http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8742168-B2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_3f054c5ead8d4aab5ea8c97172843d06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_add6a0d88c933566fb89ae9c49f2901d http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b0736cb19133fba052305970af8f9767 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2d8c40ef3cd7ea05645965c3ccf329cd |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-487 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-12 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-12 |
| filingDate | 2011-05-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2014-06-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_522b85a73d0327d6c590b5820e99ae22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_181d34c6bb9f8ed3dc3da9973e655561 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_35c81463abdeb86b89fe16b83bea2d7c |
| publicationDate | 2014-06-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-8742168-B2 |
| titleOfInvention | Process for the production of acetic acid |
| abstract | The disclosure relates to a process in which methanol is carbonylated in a reaction zone in the presence of a catalyst to obtain a reaction mixture (A) comprising acetic acid, hydrogen iodide, methyl iodide, water and the catalyst. At least a part of the reaction mixture (A) is withdrawn from the reaction zone. The withdrawn part of the reaction mixture (A) is introduced into a flash zone where it is brought into contact with an alkylimidazolium iodide to form a secondary mixture (B), and where the secondary mixture (B) is separated to obtain a vapor stream (B V ) which comprises the acetic acid, water and methyl iodide, and a liquid stream (B L ) which comprises the catalyst, the alkylimidazolium iodide and hydrogen iodide. The vapor stream (B V ) is processed to purify the acetic acid, and the liquid stream (B L ) is recycled to the reaction zone. The reaction mixture (A) is brought into contact with the alkylimidazolium iodide in the flash zonen 1) by introducing to the flash zone separately from the withdrawn part of the reaction mixture (A) an extraneous alkylimidazolium iodide; or 2) by introducing to the flash zone separately from the withdrawn part of the reaction mixture (A) an alkylimidazole and forming the alkylimidazolium iodide in situ by reacting the alkylimidazole with the hydrogen iodide or the methyl iodide. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9598342-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2014309455-A1 |
| priorityDate | 2011-05-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 290.