http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H11347302-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5128cfc84a0fb189fceb3cd240c44493 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-52 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G21-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D11-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G21-20 |
| filingDate | 1998-06-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f84a78586a40ba7441738de2366e2908 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f576b1b407313624449460b9114fbadd |
| publicationDate | 1999-12-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H11347302-A |
| titleOfInvention | How to recover lead |
| abstract | (57) [Summary] [Problem] To produce a carboxylic acid ester, Provided is a method capable of removing a lead component eluted from a catalyst and effectively recovering a product and a by-product. SOLUTION: An acid and / or compound generating sulfuric acid and / or phosphate ion and an acid and / or compound generating hydrogen sulfide ion or sulfur ion are added to a lead-containing carboxylic acid ester solution, and phase separation phenomenon occurs. The lead is precipitated and separated on the aqueous phase side while accelerating, and useful components such as methacrylic acid are concentrated in the oil phase. [Effect] A very small amount of lead ions or lead compounds that partially exfoliate or elute from the catalyst can be efficiently recovered, and carboxylic esters and useful carboxylic acids and organic compounds that are by-produced in the reaction system can be recovered extremely efficiently. |
| priorityDate | 1998-06-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 56.