http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113372572-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08H6-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08H7-00 |
| filingDate | 2021-07-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2023-01-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2023-01-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-113372572-B |
| titleOfInvention | A method for recycling solid organic acid to separate lignin |
| abstract | The invention relates to a method for recycling solid organic acid to separate lignin. The lignocellulosic raw material is mixed with a solid organic acid aqueous solution for heating reaction, and the obtained first filtrate is diluted with an anti-solvent to obtain a separated mother liquor and lignin. The separated mother liquor is cooled and recrystallized, and the recovered solid organic acid is used to prepare the solid organic acid aqueous solution for recycling. The method of recycling solid organic acid to separate lignin according to the present invention can not only separate and obtain high-value lignin products, but also make the lignin separation rate ≥ 90%, the DLS size is 226-231nm, and the Zeta potential is stable at -38-- 44mV, organic reagents can also be recycled, the recovery cost is low, the environmental pollution is small, the separation cost is greatly reduced, and it is convenient for large-scale promotion and use, and the inventor has further studied the suitable recycling times of solid organic acids. |
| priorityDate | 2021-07-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 20.