http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-1938973-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_64c646df6ba6e35dbd2ed120542598d2 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01D3-08 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01D3-08 |
| filingDate | 1969-07-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_94d5c81b910993dc23a844a48a839acf http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_289ed203b7ad0e27fcefe82489b2c2cc |
| publicationDate | 1971-04-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | DE-1938973-A1 |
| titleOfInvention | Process for processing crude potash salts |
| abstract | K2O-yield is improved and K2O-content of sylvite obtained is raised by process where crude ground K salt containing MgSO4 and clay is (a) electrostatically separated into fractions (1) kieserite and/or long bainite and (2) sylvite, rock salt and clay, and (1) is evacuated; (b) fraction (2), consisting of "quasi-sylvinite" containing adherent short-chain 4-12C fatty acids from (a), is separated by flotation with addition of high molecular sludge-blocking agents, particularly guar meal and starch, into fractions (3) consisting of enriched clay with small residual sylvite content up to 29% K2O, which is carried out, and (4) sylvite and rock salt; (c) fraction (4) is separated with sylvite-flotation agents into (5) consisting of sylvite and pre-concentrate with at least 46% (50%) K2O and (6) rock salt; (d) and fraction (5) if necessary is separated by further flotation into (7) sylvite with at least 60% K2O at K2O-yield over 90%, and evacuated. |
| priorityDate | 1969-07-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 27.