http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DD-145631-A1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-74 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-44 |
| filingDate | 1979-08-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1980-12-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | DD-145631-A1 |
| titleOfInvention | Process for the preparation of aromatic isocyanates |
| abstract | The aim of the invention is an improved method forneconomical production of aromatic isocyanates bynReaction of aromatic nitro compounds with carbon monoxide, thenwith relatively small amounts of precious metals in the catalyst systemnexpires while the catalyst system remains active. For this one sìetztnaromatic nitro compounds with carbon monoxide under imnessential water and hydrogen-free conditionsnelevated temperature (160 to 300 ° C) and elevated pressure (20 to 600 at)nin the presence of a catalyst system consisting of palladium and / ornRhodium and / or at least one compound of these precious metals,nat least one iron halide complex of the general formulanÄkFelXmLnnand / or suitable starting substances for the formation of thesenEisenhalogenidkomplexe under Reaktionsbadingungen. In thenFormula X = halogen, L = aromatic nitrogen-containingnheterocyclic ligand, A = an organic. Cation and k, l, m, nnare integer indices with k, n = 0 and l, m = 0. |
| priorityDate | 1979-08-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 140.