http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2001031643-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9d38b69e51406faf936cdab1b6fcbdc3 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C303-44 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C309-65 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C309-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C303-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C303-44 |
| filingDate | 2000-06-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_64d23dfdc29439dc300751c0c029677c |
| publicationDate | 2001-02-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2001031643-A |
| titleOfInvention | Method for recovering strong acids from aqueous solutions |
| abstract | (57) [Problem] To provide a method for recovering a strong acid from an aqueous solution. A method for recovering a perfluorinated acid in its anhydrous form, comprising the steps of: a) preparing an aqueous solution containing the acid in a hydrated form; C) adding a weak base in the form of a water-soluble salt of said acid to said solution, c) distilling said solution of acid and acid salt in the presence of a first stripping agent to form a substantially water-free acid D) distilling the acid-salt mixture, optionally in the presence of a second stripping agent, to obtain a salt residue and the acid in anhydrous form; And optionally further recycling the salt residue from this distillation step to step b). |
| priorityDate | 1999-06-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 22.