http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-101643415-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b059ee23d98fe651f7346899a4a6a0b4 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-82 |
| filingDate | 2009-06-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3e458d460f279f544911d3e1a3f1ee96 |
| publicationDate | 2010-02-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-101643415-A |
| titleOfInvention | Process for decoloring DOTP produced by waste and old terylene |
| abstract | The invention discloses a process for decoloring DOTP produced by waste and old terylene, which aims to provide a process capable of decoloring DOTP produced by waste and old terylene and leads the color of the DOTP product to be stabilized on light yellow so as to beneficial to a downstream user to use. The process comprises the following steps: placing terylene and octanol into a reaction kettle; when the terylene and the octanol are heated to the temperature larger than 180 DEG C, leading the terylene and the octanol to start to react so as to generate the DOTP and glycol; when reaction isto be finished, slowly adding potassium permanganate aqueous solution into the reaction kettle, wherein the mass of potassium permanganate is 1-5 permillage of material mass; leading a system to be ina backflow state; separating liquid materials in the reaction kettle and placing the liquid materials into a distilling kettle to carry out decompressing distillation; and obtaining the light yellowDOTP. The process can decolor the DOTP produced by the waste and old terylene, leads the color of the DOTP product to be stabilized on the light yellow so as to be beneficial to the downstream user touse. The decoloring process is simple and is easy to realize. |
| priorityDate | 2009-06-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 20.