http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103073576-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L67-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K5-5313 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K13-04 |
| filingDate | 2012-09-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2015-09-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2015-09-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103073576-B |
| titleOfInvention | The preparation method of a kind of dialkyl phosphinic acid and salt thereof |
| abstract | The invention discloses the preparation method of a kind of dialkyl phosphinic acid and salt thereof, comprise step: take organic solvent as solvent, by high density Hypophosporous Acid, 50 under initiator effect with olefine reaction, obtain dialkyl phosphinic acid-organic phase solution; After removing organic solvent with water extraction or underpressure distillation steaming, dilute with water obtains the dialkyl phosphinic acid aqueous solution; And obtain dialkyl phosphinic acid aqueous solution of alkali metal salt with the aqueous solution neutralization of basic cpd; Dialkyl phosphinic acid aqueous solution of alkali metal salt metallizing thing reactant aqueous solution is prepared dialkyl metal phosphinate.The present invention adopts high density Hypophosporous Acid, 50 to be raw material, and with the lower organic solvent of polarity for solvent, reaction time is extremely short, only need 4 ~ 6h can complete high-pressure synthesis process, and overall yield is high; The dialkyl phosphinic acid product concentration of synthesis is high, and purity is high; Technical process is simple, also without other objectionable impuritiess after product salify, without any need for aftertreatment. |
| priorityDate | 2012-09-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 149.