http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102731287-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d6a6f422b091ba12ea61d4adbf1b0e8e |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C53-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-48 |
| filingDate | 2012-07-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2014-09-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_75cbf43511db6914732a3154c4a56548 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a9f6c623eff5140106cf2b5a54671242 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_af86a2595cc629967ba777a20ef59fb3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_99303dd9579344531bbc94c92b44640c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_00fb79c1eef97da2fddd59fdd736b980 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4f37bc6d6c8c295520171a2089e0dccd |
| publicationDate | 2014-09-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-102731287-B |
| titleOfInvention | Refined monochloroacetic acid crystalline product complexometric extraction method |
| abstract | The invention discloses a refined monochloroacetic acid crystalline product complexometric extraction method. The method comprises: first using the normal hexane solution of aliphatic amine to carry out complexometric extraction to obtain the water solution of the monochloroacetic acid crystalline product (quality purity about 99.0%), standing for layering with the upper phase being an organic phase and the lower phase being a water phase, then using the normal hexane to extract the water phase, and vaporizing the water phase to obtain a solid which is the refined monochloroacetic acid (quality purity above 99.9%). The key in the technology is the employed aliphatic amine is a mixture of tri-n-octylamine and di-n-octylamine. As a complexometric extraction agent, the mixture can effectively remove the main impurity of dichloroacetic acid in the monochloroacetic acid crystalline product. |
| priorityDate | 2012-07-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 35.