http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DD-283794-A5
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_31cbacf6927b6566b99ce74158c39ec6 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01D7-24 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01D7-24 |
| filingDate | 1989-05-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d79789a7fcabafc1d06a32fd727f30fb |
| publicationDate | 1990-10-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | DD-283794-A5 |
| titleOfInvention | PROCESS FOR PREPARING CALIUM CARBONATE |
| abstract | The invention relates to a process for the preparation of * by crystallization from a solution and separation of the crystallizate from the mother liquor, wherein a partial stream of the mother liquor is led out of the Prozesz to avoid Überbersaettigung of sodium carbonate and the residual stream of the mother liquor is returned to the Kaliumkarbonatkristallisationsstufe. According to the invention, the partial stream of the mother liquor discharged from the process is subjected to evaporation at a significantly higher temperature than the potassium carbonate crystallization stage, in particular at a temperature of between 363 and 423 K. After separation of the doubled salt potassium sodium carbonate, the remaining mother liquor is likewise returned to the potassium carbonate crystallization stage. Figure {* Crystallization from sodium ion-containing K2CO3 solution; Mother liquor; Separate partial flow, evaporate; high temperature; Double salt; Kaliumnatriumkarbonat} |
| priorityDate | 1988-05-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 27.