Predicate |
Object |
assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_4b1aa2b8a570e7ceaa83e2a0eae6daea |
classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-12 |
classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C53-08 |
filingDate |
2000-08-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7f2684eb9bfa85535e17b23ecba97689 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ca608dd3dc087704e6627841ad2cbe31 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fc1262ff982638982878fd5448ccc826 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_944ec3d1860d0d7fb0dee9a4fb2cf6fe http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d79e146df6fcb328d25373f4a2213b4e |
publicationDate |
2003-09-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
publicationNumber |
NZ-517677-A |
titleOfInvention |
Rhodium/inorganic iodide catalyst system for methanol carbonylation process with improved impurity profile |
abstract |
The method of the present invention provides an improvement upon prior art methanol carbonylation methods which substantially reduces the production of carbonyl impurities.The production of carbonyl impurities, particularly acetaldehyde, crotonaldehyde, and 2-ethyl crotonaldehyde, in methanol carbonylation reactions has been found to decrease by maintaining a partial pressure of hydrogen between about 0.1 and 4 psia at reaction total pressure of from about 15 to about 40 atmospheres total reaction pressure |
priorityDate |
1999-08-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
type |
http://data.epo.org/linked-data/def/patent/Publication |