http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2755541-C1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_907749d9a51f53da0d3a58fd72a2cab1 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J20-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J20-30 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J20-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J20-06 |
| filingDate | 2020-08-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-09-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_596b4550cbab9c07ba1f4abb51720167 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_10b1e94fb3231c3e11d7d80fbc3a2ac5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6c402ef3cd8c18c1a6a9072856e04bd2 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c67c453c8331258ccb8ad187e7b2e9f8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_de5a5e6f00c0ff63b1952d693fd912d9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7acadce3244f14e4e7a6472488a878dc http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6524e8a17de768248aa686b23b15fa97 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d655920eaee1d495bcbb9765d0ddff96 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_006355bd9463fe140e8f2251176e0ef3 |
| publicationDate | 2021-09-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2755541-C1 |
| titleOfInvention | Method for obtaining zirconium hydroxide-based recoverable carbon dioxide absorber |
| abstract | FIELD: chemistry.SUBSTANCE: invention relates to a method for obtaining a zirconium hydroxide-based recoverable carbon dioxide absorber, and can be used in the technology for producing recoverable carbon dioxide absorbers for carbon dioxide concentration systems, for purifying the atmosphere of sealed objects from carbon dioxide, wherever production of purified carbon dioxide-free gases is required. The method for obtaining a zirconium hydroxide-based recoverable carbon dioxide absorber consists in mixing basic zirconium carbonate with zinc oxide and mechanically activating the mixture. Hydrogen peroxide and a binding agent are then added, wherein a water dispersion of a carboxylated copolymer of acrylic and methacrylic acid esters is used as a binding agent in an amount of 5 to 10% relative to the dry matter. The granules are formed, hydrotreated and dried. The basic zirconium carbonate is pre-ground for at least 30 minutes, wherein ceramic balls with a diameter of 30 mm are used as the grinding bodies in a ball drum mill. The reagents of the mixture are mechanically activated at a ratio of zirconium ions to hydrogen peroxide of 1:0.8 and a moisture content of the absorbent granules of at least 25±2% wt. The dried mixture is ground through a sieve with a mesh of 0.3 mm in size. The resulting product is mixed in the mixing equipment to a homogeneous condition with a binding agent, wherein a water dispersion of a carboxylated copolymer of acrylic and methacrylic acid esters is used as a binding agent in an amount of 5 to 10% relative to the dry matter. The granules are then formed in a granulator with a die of 2.8 mm in size. The granules are dried to a moisture content of 25±2% wt. and screen on sieves to remove dust. The dried granules are then loaded into an autoclave in a layer of up to 10 cm and sustained over distilled water at a temperature of 120°C for 6 hours. Ammonia is washed off by boiling in distilled water in a mesh container, supplying steam from the bottom up through the granule layer until the ammonia odour is eliminated. The granules are then redried at a temperature of 20 to 80°C to a moisture content of the product of 25±2% wt.EFFECT: invention allows excluding isolation of ammonia while maintaining the mechanical properties of the absorber granules, increasing the dynamic activity of the absorber with respect to carbon dioxide, the granule strength, improving the operational characteristics of the zirconium hydroxide-based recoverable carbon dioxide absorber.3 cl, 1 tbl, 3 ex |
| priorityDate | 2020-08-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 49.