http://rdf.ncbi.nlm.nih.gov/pubchem/patent/MX-PA02004064-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5ddadb999be4f451dfc44d8e359d8f6a |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B67-0073 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B67-0096 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B67-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B67-54 |
| filingDate | 2000-10-23^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a217f1b1d82f0a37a517116ef51bb959 |
| publicationDate | 2002-10-11^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | MX-PA02004064-A |
| titleOfInvention | PROCESS FOR THE PREPARATION OF SOLUTIONS OF ANIONIC ORGANIC COMPOUNDS. |
| abstract | A process for the preparation of concentrated anionic organic compound solutions or suspensions is described, which process comprises a) acidifying an aqueous solution or dispersion of an anionic organic compound comprising salts and / or impurities, at a pH of 4.5 or less, if the pH is above that value, so that b) the anionic organic compound becomes soluble in water and precipitates as a free acid, c) bringing the suspension, by means of micro or ultrafiltration, to a content of salt of less than 2% by weight, based on the total weight of the required material, with d) optional washing of the salts with water at a pH of less than 4.5, e) then optionally washing with water until the free acid, then f ) increasing the concentration so that the content of anionic organic compound is 5 to 50% by weight, and g) optionally dissolving the anionic compound by adding a suitable base. |
| priorityDate | 1999-10-29^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
| Predicate | Subject |
|---|---|
| isDiscussedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID962 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID419512635 |
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