http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102910678-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_111b161a9522dd387ad81ccacd52c05c |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G37-14 |
| filingDate | 2012-11-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2014-11-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1223fc2ef5021874199e476fe11dc9e4 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dd833fa633378850ffa4b1332784265c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8206a7a845c7defbd78c0e6ae03b5c86 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1bea9d438fc6dff1b496894e2356064d |
| publicationDate | 2014-11-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-102910678-B |
| titleOfInvention | Method for preparing sodium chromate |
| abstract | The invention relates to a method for preparing sodium chromate. The method comprises the following steps: firstly, neutralizing sodium chromate alkaline solution obtained through chromite baking and leaching by using carbon dioxide gas or gas containing carbon dioxide; secondly, separating and removing solid impurities; and thirdly, adding acidic chromium-containing solution to the solution obtained through the separation in the second step to adjust the pH. Through the method disclosed by the invention, the product quality of sodium chromate is improved, and the production cost is further greatly reduced. The tail gas of industrial stoves is used as the neutralizing impurity removing agent of the sodium chromate alkaline solution so that the carbon dioxide gas is recycled and the production cost of sodium chromate can be further reduced. |
| priorityDate | 2012-11-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 28.