Abstract: A method is provided for producing a multilayered element having a top coat. The method includes the application of an undercoating to the upper surface of a support and the application of a continuous top coat coating composition to the surface of the undercoating. The undercoating includes a binder while the top coat composition includes one or more dissolved or dispersed materials and one or more solvents. At least one of the solvents is compatible with the binder. The composition and coating weight of the top coat composition and of the undercoating are controlled such that the ratio T/B is less than or equal to 3, whereinT is the coating weight of the compatible solvent(s), andB is the coating weight of the binder.

Abstract: A method for controlled delivery of corrosion inhibitors to a silver containing solution in a silver recovery device which utilizes a metallic fill for electron exchange. The method involves forming a structure of polyurethane foam within which a corrosion inhibitor is incorporated and placing the structure in the silver recovery device.

Abstract: Silver is removed from used fix or bleach-fix baths by adding a compound of the general formula: ##STR1## wherein: X is an oxygen atom or imino group, R is an aryl, or a group of the formulaR.sub.1 CH.sub.2 (CHOH).sub.n.sub.-1wherein n is a positive integer from 1 to 4, and R.sub.1 is either a hydrogen atom or hydroxyl group when n is 2 to 4 and is an hydroxyl group when n is 1.

Abstract: Aqueous, non-fixing solutions which have a high efficiency in the removal of silver from a water-penetrable mass are comprised of:1. a water-soluble ferric compound,2. halide ion, and3. a water-soluble compound which releases an inorganic ion and increases the redox potential at constant pH of a solution of (1) and (2).

Abstract: High contrast, rapid access, air stable, regenerable iron chelate developer solutions comprising at least two developer materials, at least one selected from each group comprising:1. iron chelate developers and2. an ascorbic acid developer.

Abstract: Low contrast, rapid access, air stable, regenerable iron chelate developer solutions comprising at least two developer materials, at least one selected from each group comprising:1. iron chelate developers and2. amidol, gallic acid, tannic acid, and 2,5,di-tert-butyl hydroquinone.

Abstract: Rapid access, air stable, regenerable iron chelate developers comprising at least three developer materials, at least one selected from each of the groups comprising:1. iron chelate developers2. an ascorbic acid and3. phenidone, glycin, cysteine hydrochloride, hydroxylamine sulfate, hydroquinone monosulfonate and 4-amino-N-ethyl-N-(.beta.-methanesulfoneamidoethyl)-m-toludine.