Stringent regulations on effluents containing lead have motivated electronics manufacturers to explore new methods for eliminating all lead discharges. Ion exchange, when property mmbined with electrowinning, has proven itself as a viable technology for approaching zero discharge. The three studies presented in this paper review the previous problems encountered when combining these technologie...

Major use Preserving wood and anatomical specimens; embalming; browning and etching steel and iron; intensifier in photography; white reserve in fabric printing; tanning leather; depolarizer for dry batteries; electroplating aluminum; mordant for rabbit and beaver furs; manufacturing of ink for mercurography; reagent in analytical chemistry; manufacturing of other Hg compounds; for freeing gold...

Hybrid microcircuit packages are multicomponent electronics devices used in high tech military equipment. They also find application in medical devices for implant in humans to abort the attack of many life threatening illnesses. These are electroplated with limited thicknesses of nickel (1.25 8.75pm) and gold (1.25 5.6pm). In addition there are post plate baking and steam aging requirements as...

Aerosol jet printing of silver inks is a promising approach for 3D electronics, particularly obtaining very complex circuits with high‐resolution conductive pads and traces. Common are however not competitive traditional bulk metal conductors, requiring sintering at high temperatures as well having significant porosity that can result in early failure. Herein, the possibility using electroplati...

Methods for predicting organic solvents, chromic acid, mineral oil, styrene, and sulphuric acid emissions in painting, metal degreasing, wood preservation, chromium electroplating, turning, grinding, making glass fortified polyester laminates and lead batteries charging, injection moulding of polystyrene plastics, and making polyurethane foam processes are described. Experimentally introduced e...