http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DD-250128-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_37ffeb5cafc6585168ac40b8a13b38d4 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-584 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F8-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-26 |
| filingDate | 1986-06-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_01336f1d66909aed985e9e200b6a5b74 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9e5673665d83458cdeacea0bf21b5051 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fb8be708149884163ca4ae660a9729cc http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_25ab5340030feaf56b16757759f267dd http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_52b626acae882e8b8a502bed508946cf |
| publicationDate | 1987-09-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | DD-250128-A1 |
| titleOfInvention | CIRCULAR PROCESS FOR CHLORINE METHYLATION OF VINYLAROMATIC POLYMERS |
| abstract | The invention relates to the circulation mode of the chloromethylation reaction of vinyl aromatic polymers, which is carried out for the preparation of anion exchangers. The aim of the invention was to use the cheap Chlormethylierungskatalysatoren FeCl3 in a simple way technically. The object was to use the catalyst in a technically and technologically easy to handle form in a simple manner. According to the invention, the object has been achieved by adding the FeCl 3 in the form of a 20 to 45% aqueous solution to the regeneration batch of used monochlorodimethyl ether, washing methanol from the chloromethylate and formaldehyde in an amount which is sufficient to set a FeCl 3 concentration of 0.5 to 30 g FeCl3 / l in the regenerated Monochlordimethylether is necessary. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6756462-B2 |
| priorityDate | 1986-06-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 33.