| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b212fdeb001d5bd821377a4af95807e5 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01C1-242
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01C1-24 |
| filingDate |
2006-07-03^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2008-05-27^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b0e93d99b186fae3be561a082e03cc0b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c52ed12f5929443696de4fdd604e8fc4
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c9d309c28464ac36a8ce09d4cae0bbcf
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a3b5f1806b4fb761048e5321f696c38a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_35273d76045ff888959b2e5961c12bd9
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_55158a42a38b6bda26e69991027f3baa
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dcc6e71acadefa70f7366b81a949e82f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c2eb184bea8019254d782c06609aaad3 |
| publicationDate |
2008-05-27^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
RU-2325324-C2 |
| titleOfInvention |
Method of ammonium sulphate preparation |
| abstract |
FIELD: chemistry. n SUBSTANCE: method put forward in this invention pertains to ammonium sulphate preparation and consists of ammonia deacidification of black sulfuric acid containing organic admixtures in presence of extraction agent where black sulfuric acid was previously used in the process of isobutane sulphuric-acid alkylation by olefins and contains the admixtures of sulphonic acids and sulphonic esters. The deacidification is carried out at temperature 50-75°C up to water phase pH in the range 6-8. Ethyl alcohol was used as extraction agent; ratio of extraction agent to sulphuric-acid in conversion to monohydrate (100% H 2 SO 4 ) reaches 0.2-0.45. n EFFECT: due to usage of residual product the process is simplified and raw material base is upgraded. n 1 tbl, 2 ex |
| priorityDate |
2006-07-03^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |