http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2022135418-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7daa053f18337d21c25a3678512a5cd6 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2006-80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M2300-0014 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01F7-46 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M6-52 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M12-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-463 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01C1-185 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F7-46 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M6-52 |
| filingDate | 2020-04-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_14924cc94d35212d5bc7ed6de296887d |
| publicationDate | 2022-05-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-2022135418-A1 |
| titleOfInvention | Production of high purity alumina and co-products from spent electrolyte of metal-air batteries |
| abstract | Methods and systems are provided, which convert spent electrolyte from aluminum-air batteries into high purity alumina (HPA) and useful co-products such as fertilizer(s) and/or feed supplement(s). Aluminum tri-hydroxide (ATH) having potassium (K) and/or sodium (Na) impurities, e.g., from spent electrolyte, may be dissolved in strong acid to form an acidic ATH solution having pH<4. Consecutively, the acidic ATH solution may be neutralized to pH>4 to precipitate ATH while retaining dissolved K/Na in the neutralized solution. The dissolving and the neutralizing may then be repeated with the precipitated ATH until a specified purity level of the precipitated ATH is reached. Using appropriate bases to neutralize the acidic ATH solution, e.g., ammonia and/or choline, yields useful co-products such as ammonium nitrate (with nitric acid as the strong acid) and choline chloride (with hydrochloric acid as the strong acid), respectively. |
| priorityDate | 2019-04-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 46.