http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102040524-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0c7ba4c573e1a169daa53c2b7f69dfb9 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-86 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C211-36 |
| filingDate | 2010-11-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2014-04-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_52ff597889d4def80b9810900e6296a5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0d4bf1c1762012b09420d924a420106b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6e52b8a24319d009b893845d77892dcd http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2a0e53b4d400b84d161227ce1eff99f0 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_26652884f458cff32b1deda32a13022e |
| publicationDate | 2014-04-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-102040524-B |
| titleOfInvention | Separation processing method for isomer mixture of 4,4'-methylenebis(cyclohexylamine) |
| abstract | The invention relates to a separation processing method for an isomer mixture of 4,4'-methylenebis(cyclohexylamine), which belongs to the technical field of fine chemical and physical separation. The method comprises the following steps of: adding a molten raw-material mixture and a solvent into a reaction bottle, stirring until dissolving, cooling to the temperature of 0-10 DEG C through an ice-water bath, standing and crystallizing for 0.2-2 hours, then filtering, and processing a filter cake to obtain a product, wherein the content of the product is determined to be not less than 99.8 percent with HPLC (High Performance Liquid Chromatography), a trans-trans isomer is larger than 74 percent by weight, and the yield is 41-47 percent; and processing a mother liquid to obtain a product, wherein the content of the product is determined to be not less than 99.5 percent with the HPLC, the trans-trans isomer is smaller than 24 percent by weight, and the yield is 47-53 percent. In the invention, PACM50 (4,4'-methylenebiscyclohexylamine) is separated into two products of PACM20 and PACM70 by utilizing a solvent and adopting a physical crystallizing and separating method, the separating method is simple, has the advantages of mild condition, strong operability, good separating effect, high product purity, high yield, convenience in operation, solvent recyclability and less environment pollution and is suitable for industrialized production. |
| priorityDate | 2010-11-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 43.