http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103121717-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_cfe512c0805352bdbbd54a2c6262273c |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G37-14 |
| filingDate | 2013-02-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2015-03-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_df9f01338aaf528de25ad58307e8dbe8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cf031764ca4948bc6baf0c9589116cc9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0903dfda596b7ae3f4e6a10dfeea8751 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ea5c4fe96480e1913f73bb6568ce4b79 |
| publicationDate | 2015-03-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103121717-B |
| titleOfInvention | Method for preparing sodium chromate by mixing chromite and ferrochrome and device for method |
| abstract | The invention discloses a method for preparing sodium chromate by mixing chromite and ferrochrome and a device for the method. The method comprises the following steps: measuring and mixing chromite and ferrochrome with sodium carbonate, sodium nitrate and sodium peroxide; pelleting the mixture with extracted liquid sodium chromate in a pelletizer; drying in a drier; returning part of the clinker to a flame kiln after the material is dried and cooled, so that chromite and ferrochrome are decomposed and oxidized in the form of fused liquid phase in molten salts so as to obtain the clinker of sodium chromate; and continuously soaking, filtering and cleaning after the clinker is cooled so that a chromium chemical primary product of liquid sodium chromate is obtained, wherein the flame kiln comprises a U-shaped kiln body, a partition wall and a low-position molten salt suction port, wherein the partition wall and the low-position molten salt suction port are arranged in the U-shaped kiln body; one or more blowing oxygen lances and one or more charging holes are arranged at the top of the kiln body, and a smoke outlet is arranged on the upper side of the kiln; and one or more oxygen lances are arranged at the bottom of the kiln. According to the method disclosed by the invention, the oxidation rate is as high as 98%, the clinker extraction rate is as high as 99.97%, and the chromium yield is 97.96%. |
| priorityDate | 2013-02-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 50.