http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103804229-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5d1a92816e1e9242dc2b07feb92ebe36 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C253-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C255-07 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C253-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C255-04 |
| filingDate | 2014-02-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_70ab75e4eb05c44c6d00aa76d69100e1 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_730a4d199786f7459dbe1dd419eada01 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8d4eb317cd7cf0cd80df8ae8a3103d85 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_addab961edeb71f8e0956928e9e9db41 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_faa2fca5c59f94fe21094b13b3181254 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9433450553b39ba019531343c92708ef http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1f73aac0e446a6ec1f983b5c512c103d |
| publicationDate | 2014-05-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103804229-A |
| titleOfInvention | Method for inhibiting degradation of phosphorus containing ligand in process of synthesizing adiponitrile via butadiene method |
| abstract | The invention discloses a method for inhibiting degradation of phosphorus containing ligand in process of synthesizing adiponitrile via a butadiene method, and the method comprises the step of adding organic alkali in isomerization reaction and secondary hydrocyanation reaction, wherein the organic alkali comprises triethylamine, diethylamine, dimethylamine, hexamethylenediamine, pyridine, phenylamine, phenylamine and N,N-dimethylaniline or N,N-diethylaniline. According to the method, organic alkali is added in the isomerization reaction and secondary hydrocyanation reaction, then the degradation of the phosphorus containing ligand in the isomerization reaction and secondary hydrocyanation reaction is effectively inhibited, and the degradation rate of the phosphorus containing ligand is controlled within 5%, so that the magnitude of recruitment of the phosphorus containing ligand is decreased, the separation recovery rate of the zero-valence nickel catalyst and the phosphorus containing ligand is improved at the same time and the raw material cost for synthesizing the adiponitrile via the butadiene method is reduced; and the method provided by the invention does not influence the conversion rate and the selectivity of the isomerization reaction and secondary hydrocyanation reaction. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2023060929-A1 |
| priorityDate | 2014-02-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 83.