| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6abb854249c379d1f6835b3a3e3abef9 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01D3-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2006-80
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01D3-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P10-20 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01D3-145
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01D3-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J45-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J47-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B3-42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01D3-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J49-85
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B26-10 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01D3-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J47-00 |
| filingDate |
2020-07-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7223bdf0caf10faf78769bc657afcd55
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_02767814d2d883108cc7440af18127f2 |
| publicationDate |
2021-01-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CA-3147567-A1 |
| titleOfInvention |
Process for purifying potassium chloride |
| abstract |
A process for the preparation of purified potassium chloride comprises the at least partial removal of one or more class 1 heavy metal impurity (lead, arsenic, cadmium and/or mercury) from potassium chloride process liquor by an ion exchange step. The process uses an ion exchange resin and achieves high levels of purity and is compatible with high flow rates. A recrystallisation step (e.g. a cooling crystallization step) may be employed subsequent to the ion exchange step. |
| priorityDate |
2019-07-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |