http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2214671-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_bb4358224a91ab9c016eb6f1f517a0d0 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C05F11-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C05F11-00 |
| filingDate | 1974-01-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1974-08-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | FR-2214671-A1 |
| titleOfInvention | Fertilizer prodn. from lignocellulose-contg. waste - by digesting with sulphuric-phosphoric acid mixt., neutralizing then treating with ammonia |
| abstract | The finely ground waste (I) is reacted, without may external heating, with an acid mixt. contng. at least 10 wt.% H2SO and 20-80 wt.% H2SO4 on (I); allowing reaction to proceed until temp. rise caused by the exothermic reaction has ceased; neutralising (e.g. with CaCO3, Ca(OH)2), then treated neutralised mass with NH3 or a cpd. thereof (esp. NH4OH or anhydrous NH3). The acid may contain 10-90 wt.% H2SO4 and H3PO4 is at least 65 wt.% when H2SO4 is only 10%; suitably H2SO4 is about 40% and H3PO4 is 60%. (I) is esp. sawdust of mesh size 60 and the reaction product is dried and granulated using its own heat of reaction. |
| priorityDate | 1973-01-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 20.