| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_bbff87382f9a6c4f198c52ff20df056e |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D61-422
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2317-022
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2311-25
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2311-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2311-2623
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D61-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2311-2642
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2317-025
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D61-025
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D61-027 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C25B9-19
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C25B1-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C25B15-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C25B1-46
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01D3-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D61-58 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01D3-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D61-42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B82Y30-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C25B9-19 |
| filingDate |
2012-08-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_292f7d30b35c6f2bd27c9825ce3a0a35 |
| publicationDate |
2019-06-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
NZ-706041-A |
| titleOfInvention |
Process and system for producing sodium chloride brine |
| abstract |
The invention provides a process and system for producing sodium chloride brine suitable for use in a sodium hydroxide production plant having a chlor-alkali membrane cell, said process comprising (a) nanofiltering feed water containing dissolved sodium chloride to produce a permeate and a retentate, wherein the retentate comprises at least 85% of any divalent ions from the feed water; and (b) purifying the permeate to produce the sodium chloride brine suitable for use in a sodium hydroxide production plant having a chlor-alkali membrane cell, wherein step (b) comprises electrodialyzing the permeate to produce a concentrate having a greater concentration of total dissolved salts and a smaller proportion of divalent ions than the permeate and a diluent comprising water and divalent ions separated from the permeate. The invention also provides a process and system for producing sodium hydroxide, and a process for the commercial production of soda ash. |
| priorityDate |
2011-08-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |