Recovery of silver from photographic film

Recovery of silver from photographic film and photographic devel

Recovery of spent pickle liquor and iron metal

Recovery of the zinc contained in the residual solutions obtaine

Recovery of tungsten from heavy metal alloys

Recovery of tungsten, scandium, iron, and manganese from tungste

Recovery of tungsten, scandium, iron, and manganese values from

Recovery or arsenic and antimony from spent antimony catalyst

Recovery process

Rectangular capillaries for capillary electrophoresis

Reducing leakage current in silicon-on-insulator substrates

Reduction of steel cathode overpotential

Reference electrode IR drop corrector for cathodic and anodic pr

Refining copper-bearing material contaminated with nickel, antim

Refining method

Refining of ferrous and base metal sulphide ores and concentrate

Refining of lithium-containing aluminum scrap

Refractory ore beneficiation

Regenerating slurries for use in zinc-air batteries

Regeneration of alkaline treating agents