http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1229014-A1
Outgoing Links
Predicate | Object |
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assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9ce023a6c13740cb05a67332f11a29f9 |
classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C41-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07B37-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C41-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-412 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-487 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-14 |
classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C211-62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C2-86 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C41-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C59-64 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B37-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C15-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-41 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-487 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-24 |
filingDate | 1998-01-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_632784b962cb7f45d2f30591e440142f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4d84e3df72c85da3c7e08a26dd798d66 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cfce51e2f8658fd6577c33a38e7b200f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7107377facaaa1cf57b204e7da84fa65 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_105dbf2136f97cbc1dac625e73f79446 |
publicationDate | 2002-08-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
publicationNumber | EP-1229014-A1 |
titleOfInvention | Purification process for arylcarboxylic acids |
abstract | The application relates to a process which comprises:n A) forming a reaction product composition comprisingnarylcarboxylic acid or substituted arylcarboxylic acid in a polar organicnsolvent medium by palladium-catalyzed hydrocarboxylation of annarylolefin or substituted arylolefin in a liquid medium comprising polarnorganic solvent, water, HCl, and at least one ether; B) mixing with said reaction product composition an aqueousnsolution of inorganic base to form a mixture comprising an aqueous phasencontaining dissolved inorganic salt of said arylcarboxylic acid ornsubstituted arylcarboxylic, and before and/or during and/or after suchnmixing, distilling a substantial portion of the ether from the reactionnmixture, such that a mixture of residual organic phase and such aqueousnphase remain as a distillation residue; C) separating the phases from each other; D) distilling residual organic impurities from the aqueous phasenand providing an aqueous solution having a concentration in the range ofn10 and 35 wt%, by, if necessary, adjusting the concentration of suchnaqueous solution by removal therefrom or addition thereto of water; E) washing the aqueous solution with non-polar organic solvent atnleast twice; F) mixing non-oxidizing mineral acid with the aqueous phase innthe presence of non-polar liquid solvent to form (i) an organic phasencomposed of a solution of arylcarboxylic acid or substitutednarylcarboxylic acid in non-polar liquid organic solvent and (ii) annaqueous phase; G) separating the phases from each other; and H) crystallizing arylcarboxylic acid or substitutednarylcarboxylic acid from organic solvent. |
priorityDate | 1997-01-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 420.