Recovery of silver and terephthalic acid components from...

Details Recovery of silver and terephthalic acid components from... Recovery of silver and terephthalic acid components from...

C - Chemistry, Metallurgy

07

C

53/221, 260/531.

C07C 63/26 (2006.01) C07C 51/09 (2006.01) G03C 11/24 (2006.01)

Patent

CA 1047772

ABSTRACT OF THE DISCLOSURE The process for the recovery of silver and tere- phthalic acid component from scrap film of a light sensitive silver compound on a Mylar substrate in which the film is subjected to at least a partial wet oxidation in an aqueous alkaline medium at elevated temperature and pressure whereby the Mylar substrate is depolymerized into components which remain soluble in the liquid reactant while the silver com- ponent remains insoluble therein to enable separation of the silver component and the subsequent recovery of terephthalic acid component by acidification of the liquid phase.

224506

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