http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2019127305-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d21e71465430584a246c44c84734e676 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01D5-14 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01D5-14 |
| filingDate | 2017-12-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_81faf31be45b180222acfe795d844f9b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bad2561f8b6667baf1afa0d0dc952512 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_225a0b455a7ad7b8a8fc155464c9b325 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_08dfe6b473ed10ac45af81c9b48733dc http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0666f026f000bc87e3776375d491ec3b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bb2c8c452853df0ab9f01572591d48ed http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7a8e759508dd0f4e700abc9b3601ae9c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_595b8a15d93c34d58f6f959e69399184 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2fa6121b2b125c00c8c692b90a7d93cd http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7f5cda6f3ef7cdb3b9358b70aee4d988 |
| publicationDate | 2019-07-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | WO-2019127305-A1 |
| titleOfInvention | Processing method for producing sodium sulfite product by so2 flue gas absorption and arsenic-removal purification using leaching solution of arsenic-containing industrial alkaline residue |
| abstract | Disclosed is a processing method for producing a sodium sulfite product by SO 2 flue gas absorption and arsenic-removal purification using a leaching solution of an arsenic-containing industrial alkaline residue. The method comprises: crushing an arsenic-containing industrial alkaline residue, adding water, pulping, and filter pressing to obtain a leaching solution; adding sodium sulfide aqueous solution and p-phenylenediamine into the leaching solution, followed by filter pressing to obtain a clear arsenic-containing alkaline leaching solution for standby; pumping the clear solution into a spray desulfurization tower to absorb SO 2 , so as to reduce pH value of a resulting absorption solution to about 6.2-6.4, followed by adding the clear arsenic-containing alkaline leaching solution to adjust the pH value to about 10.5~11.5; adding a poly-ferric sulfate aqueous solution for arsenic precipitation and filter pressing so as to perform liquid-solid separation, followed by concentration and evaporation of the clear solution, and then crystallization to separate the mother solution, and finally drying, thereby obtaining a sodium sulfite product having a mass concentration greater than or equal to 96%. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112961987-A |
| priorityDate | 2017-12-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 58.