http://rdf.ncbi.nlm.nih.gov/pubchem/patent/NZ-549259-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_4b1aa2b8a570e7ceaa83e2a0eae6daea |
| classificationCPCInventive | 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/C07C51-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-12 |
| 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 | 2005-02-24^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_944ec3d1860d0d7fb0dee9a4fb2cf6fe http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c2f37c54c576f955a30bd3f0fe380a4b |
| publicationDate | 2010-06-25^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | NZ-549259-A |
| titleOfInvention | Process for producing acetic acid by carbonylation of methanol, adding dimethyl ether to aid in the separation step |
| abstract | Disclosed is a process for producing acetic acid, comprising the steps of: (a) reacting carbon monoxide with at least one reactant selected from methanol, methyl acetate, methyl formate, dimethyl ether and mixtures thereof in a reaction medium comprising water, methyl iodide, and a catalyst to produce a reaction product comprising acetic acid; (b) performing a vapor-liquid separation on said reaction product to provide a volatile phase comprising acetic acid, water, and methyl iodide and a less volatile phase comprising said catalyst; (c) distilling said volatile phase to produce a purified acetic acid product and a first overhead comprising water, methyl acetate, and methyl iodide; (d) phase separating said first overhead to provide a first liquid phase comprising water and a second liquid phase comprising methyl iodide; and (e) adding dimethyl ether to the process in an amount effective to enhance separation of the first overhead to form the first and second liquid phases. Also disclosed is a method for phase separating a mixture comprising acetic acid, methyl acetate, methyl iodide, and water to provide a first liquid phase comprising acetic acid, water and methyl acetate and a second liquid phase comprising methyl iodide, wherein dimethyl ether is added to the mixture to facilitate the separation. |
| priorityDate | 2004-03-02^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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