http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1503559-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_03d0f52bb4069f8a19d70dcfb697c67a |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C5-3954 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C5-395 |
| filingDate | 1975-08-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1978-03-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1503559-A |
| titleOfInvention | Electrolytic regeneration of photographic blix solutions |
| abstract | 1503559 Electrolytic regeneration of photographic solutions FUJI PHOTO FILM CO Ltd 5 Aug 1975 [5 Aug 1974 7 Aug 1974 8 Aug 1974] 32751/75 Heading C7B Used photographic bleach-fix solution originally containing an Fe(III) chelated bleaching agent and an Ag halide solvent is oxidized in an electrolytic cell divided by a porous membrane to convert Fe(II) to Fe(III) while controlling the anode potential within the range -0À10 to 0À50V (relative to a saturated calomel electrode) to prevent decomposition of the Ag halide solvent. The solution either may pass through the anode compartment only, or may traverse from cathode to anode compartment via an opening in the membrane, whereby Ag in the solution is plated out. Anodes of carbon fibre, PbO 2 , Pt or Au are used, at a c.d. # 0À7 A/dm<SP>2</SP>. Cathodes of stainless steel at a potential of -0À2 to -0À7V, a c.d. # 0À01 A/dm<SP>2</SP> and of area less than half that of the anodes are specified. The membrane may be hydrolyzed cellulose acetate, regenerated cellulose, Cu 2 FeCN 6 , agar, a bladder or intestinal wall, asbestos, clay, glass or a synthetic microporous resin e.g. PVC (others listed). If a closed anode compartment is used, a conductive catholyte e.g. IN KNO 3 is required. A cell exemplified has stainless steel perforated cathodes surrounded by a wound PVC membrane on which is wound a C-fibre anode. Nitrogen bubble agitation is used. |
| priorityDate | 1974-08-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 20.