http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102387993-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_fd74c771a50b4bd31c4d1a732329ff36 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01D7-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01D5-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01D5-16 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01D5-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01D5-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01D7-26 |
| filingDate | 2010-03-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2014-12-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_43a58812c28a4d6e21dc8b5d2bcabc90 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a1d9b0f5a426f00a099b2a11b74633de http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9de9ef01ab48c5a33eede62de84aa15f |
| publicationDate | 2014-12-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-102387993-B |
| titleOfInvention | Removal of impurities in the production of crystalline sodium carbonate, bicarbonate, or sulfite |
| abstract | Disclosed is a magnesium treatment for removing water-soluble impurities in a process for making crystalline sodium carbonate, bicarbonate, or sulfite. A waste comprising such impurities is treated with a magnesium compound to form water-insoluble matter which is removed to form a purified solution. The treatment may be performed on a solution which contains the waste and optionally dissolved calcined trona. The purified solution may be used as a feedstock to form crystalline soda ash, and/or used as a reactant to produce crystalline sodium sulfite or bicarbonate via reaction with SO2 or CO2. In preferred embodiments, the waste may comprise a purge or weak liquor, a reclaimed solid, or combinations thereof. The water-soluble impurities may be silicates and/or foam-causing organics, and the waste may contain sodium bicarbonate, sodium sesquicarbonate, and/or one or more sodium carbonate hydrates, such as decahydrate. |
| priorityDate | 2009-03-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 71.