http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113830793-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5f2c23a543ebe192f369de8d3d8d9180 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2006-80 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01D3-06 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01D3-06 |
| filingDate | 2021-11-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_39e3d83925978275a11980b68e56925f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_37435af70d11de15b793573df1f57892 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_657a0d1509f7638400b0470c03e2a7d6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3ca447cea088b44ea3774cd27eb5537b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_392e9177d319fbe9ce5d8746e1d56802 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_70f3769875db79081662d00d0fc2f59b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5753fb4941d11d863a327fa153d5eb31 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_98640238db7db4bd52e0413a578cc512 |
| publicationDate | 2021-12-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-113830793-A |
| titleOfInvention | A kind of recovery method of sodium salt and potassium salt in waste water |
| abstract | The invention relates to a method for recovering sodium salts and potassium salts in waste water. The recovery method comprises the following steps: (1) heating the waste water and steaming water; when the amount of distilled water is 72-88 wt %, heat preservation and sedimentation; NaCl and sodium-forming mother liquor; (2) sodium-precipitating mother liquor is cooled to room temperature, and solid-liquid separation obtains thick KCl and potassium-forming mother liquor; Step (1) gained thick NaCl obtains sodium chloride with sodium chloride content ≥ 95wt% through first washing product; the crude KCl obtained in step (2) is subjected to the second washing to obtain a potassium chloride product with a potassium chloride content of ≥90 wt% and a sodium chloride content of ≤2.6 wt%. The recovery method of the present invention realizes the separation of sodium chloride and potassium chloride by controlling the amount of distilled water, and only involves the control of temperature in the recovery process, without the addition of additional chemicals, the cost of the entire recovery process is low, and the The recovery cost of sodium salt and potassium salt in wastewater improves economic benefits. |
| priorityDate | 2021-11-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 33.