http://rdf.ncbi.nlm.nih.gov/pubchem/patent/HU-219547-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b6254f7894bcb09ea9b55e1deb4cb481 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21C11-0007 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21C11-106 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21C11-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B33-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21C11-00 |
| filingDate | 1994-12-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9f1636695e82beee69368fecf17b0c3b |
| publicationDate | 2001-05-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | HU-219547-B |
| titleOfInvention | Method for recovering crude, fine silica crystals |
| abstract | The present invention relates to a process for recovering coarse-grained, pure silica crystals from silicic acid-containing tired liquor formed during the recovery of cellulose, in particular for processing one-year-old plants, by adding an alkali pH of at least 11 to the alkali by adding alkali and then using a CO2-containing gas for pH. by reducing the silicic acid in the chain of precipitating reactors to the desired value of residual silicic acid, and precipitating the precipitated silica from the precipitated alkali, whereby the alkalized tired acid is inoculated with coarse grains of silicic acid and then its pH is preferably reduced to 9, the pH value being lowered to pH 9, Decreased value during sedimentation of precipitated sludge with coarse-grained and fine-grained silicic acid with little lignin contamination and reduced lignin content \ t is separated from the lignin and the selected lignin is added to the lignin-containing tired alkali. ŕ |
| priorityDate | 1993-12-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 29.