http://rdf.ncbi.nlm.nih.gov/pubchem/patent/ES-356318-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6b6fc801b5bfe5304ffa40d938db6e09 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C23G1-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C23F11-149 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C11D3-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M133-44 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B05D3-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23G1-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C11D3-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10M133-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B05D7-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23F11-14 |
| filingDate | 1968-07-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1970-04-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | ES-356318-A1 |
| titleOfInvention | PROCEDURE FOR DEACTIVATING METALLIC SURFACES. |
| abstract | 4,5,6,7 - Tetrahydrobenzotriazole is prepared by reduction of benzotriazole or N - hydroxybenzotriazole using molecular hydrogen and a metal hydrogenation catalyst. It is preferred to effect reduction using an excess of hydrogen at 25 -200 C. under superatmospheric pressure by vigorous agitation of the benzotriazole in an inert solvent in a sealed reactor. Specified metal catalysts are Rh, Ni, Pd and Pt and mixtures thereof. The metal may be supported on a conventional carrier. It is preferred to subject the benzotriazole compound to a pre-treatment to remove sulphur and other hydrogenation catalysts poisons therefrom. The pre-treatment may comprise agitation of a solution of the compound with a desulphurization or hydrogenation catalyst, e.g., Pt, Pd, Rh, Ni, Fe, Co or Zn metal. In examples a Rh/charcoal hydrogenation catalyst is used. |
| priorityDate | 1967-07-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 30.