http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104803460-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2305-04 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G49-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-5236 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-52 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G49-14 |
| filingDate | 2015-03-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2018-07-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2018-07-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-104803460-B |
| titleOfInvention | Method for preparing polyaluminum ferric sulfate by acid self-coupling equilibrium quasi-dry method |
| abstract | The invention discloses a method for preparing polyaluminum ferric sulfate by an acid self-coupling equilibrium quasi-dry method, using Al 2 (SO 4 ) 3 18H 2 O, FeSO 4 7H 2 O and NaClO 3 as raw materials, and adopting acid self-coupling Polymerized aluminum ferric sulfate was prepared by equilibrium quasi-dry method. The preparation conditions were: n(Al 3+ )/n(Fe 2+ ) ratio of 2.0, temperature of 60°C, reaction time of 50 min, oxidant NaClO 3 as Fe 2+ The polyaluminum ferric sulfate (PAFS) was prepared by adding an excess of 4%. Product quality meets the requirements of national standards. After the prepared polyaluminum ferric sulfate (PAFS) product was stored at room temperature for 3 months, the ferrous conversion rate of the product decreased by 0.17%, the basicity decreased by 1.02%, and the amount of precipitation increased by 2.78%, but all still met National standard requirements. It shows that the various indicators of the product are relatively stable, and the storage effect is good. |
| priorityDate | 2015-03-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 49.