http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EA-006824-B1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_90de1c0a3f86fbf594c5f8891500038f |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C05F11-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08H6-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08H99-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C05F11-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08H99-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C05F11-02 |
| filingDate | 2002-12-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_59b5bae0698a43f3c231c878bd9f4b40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8b8a306c4e28fede92ef70c97394abf9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9bff5da43a379c262cdd15b8b3426e61 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_17ec7394dff7944306a646180bba6906 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_41607aff5afa6b82d31ba73a9ea5670e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_24244cb34fa672e110b21a6896fa2d4e |
| publicationDate | 2006-04-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EA-006824-B1 |
| titleOfInvention | METHOD OF OBTAINING SALTS OF HUMIC ACIDS |
| abstract | Salts of humic acids with a high yield of useful products are obtained by liquid-phase oxidation of a mixture of an alkaline agent with ligno-containing plant raw materials, with a total dry matter content of 12-20% in continuous mode in two stages. The first stage - preoxidation - is carried out at a temperature of 50-190 ° C and a pressure of 0.5-3 MPa with simultaneous treatment with an oxygen-containing gas until a pH of 10.5-12 is reached, and the second is oxidation under the same conditions at a temperature of 170-200 ° C until a pH of 8.5-10 is reached. As a ligno-containing plant raw material, a by-product of obtaining cellulose by the sulfite method is used - concentrated solutions of lignosulfonate - or lignin, a by-product of hydrolysis production, which is oxidized with air oxygen in a continuous process in two stages. For additional activation of the mixture of raw materials with alkali in the cavitation mode, a circulation pump with an ejector is used to provide air jet ejection. To reduce the pre-oxidation time, the first stage can be carried out with hydrogen peroxide or by feeding the raw material with alkali directly into the pipeline in front of the ejector before mixing with the oxidizing agent. |
| priorityDate | 2001-12-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 32.