http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-4033604-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f6cbf70600eab5f0755b6e25837febbf |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02W30-62 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J11-08 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J11-08 |
| filingDate | 1990-10-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e247931cb0c15a499d8a6d66980b4447 |
| publicationDate | 1992-04-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | DE-4033604-A1 |
| titleOfInvention | METHOD FOR RECOVERING SOLUBLE PLASTICS FROM PLASTIC-CONTAINING WASTE |
| abstract | Soluble plastics (I) are recovered from the waste by (1) selectively dissolving (I) chemically-physically from waste using solvent (II), (2) injecting soln. into container filled with medium which is a non-solvent for (I) and at temp. above b.pt. of (II), such that (II) evaporates and (I) is released in pure state. Evaporated (II) is then recovered by means of a rectification unit. (I) is pref. polystyrene or modified polystyrene, partic. ABS or styrene-maleic anhydride copolymer. (II) is acetone, formaldehyde dimethyl acetal (III), tetrahydrofuran, Et acetate, or Me acetate. Non-solvent is water. ADVANTAGE - System can be closed, formation of azeotrope between (II) and non-solvent (which may cause difficulties in their sepn.) can be avoided; very large excess of non-solvent is achieved through (II) boiling off, avoiding sepn. of large vols. of (II)/non-solvent mixts. (0/0) |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3950797-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3950796-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2019016416-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-19732673-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/ES-2696756-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2022029323-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3950799-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2022029318-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2022029326-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2022029324-A1 |
| priorityDate | 1990-10-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 61.