http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-2020867-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0efa077d881a96aeb1e29b21ef1bbb58 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B17-94 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B17-94 |
| filingDate | 1970-04-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4db07f1122b98c78fcff59196bfa2550 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3cad38f2d11919ed0957c8bbd5853fe6 |
| publicationDate | 1971-11-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | DE-2020867-A1 |
| titleOfInvention | Process for the production of pure dilute sulfuric acid from waste acids |
| abstract | Approx. 70% pure H2SO4 is produced by extracting waste nitrating acid 2 - 6 times with benzene at 10 - 50 degrees C or by subjecting to equiv. counter-current extraction in extractor with 2 - 6 theor. plates; separating benzene phase; exposing acid phase to countercurrent air stream in trickling tower at 40 - 100 degrees C; and treating benzene free acid with 0.1 - 1 wt.% (referred to acid) of 30 - 40 wt.% H2O2. Process is continuous and gives acid suitable for other chemical purposes. |
| priorityDate | 1970-04-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 23.