Timminco Limited

Bernard Closset

Douglas J Zuliani

A novel alloy for use in lead refining is disclosed comprised substantially of magnesium and calcium. The preferred ratio on a weight basis of magnesium to calcium is between about 1.2:1 to about 3.0:1. A method of refining a lead bath with the novel alloy is disclosed which provides a high recovery ratio of impurities present therein.

Magnesium-calcium alloys for debismuthizing lead

A novel alloy for use in lead refining is disclosed comprised substantially of magnesium and calcium. The preferred ratio on a weight basis of magnesium to calcium is between about 1.2:1 to about 5.2:1. A method of refining a lead bath with the novel alloy is disclosed which provides a high recovery ratio of impurities present therein.

A master alloy containing strontium magnesium and aluminum for modifying the aluminum-silicon eutectic phase of hypoeutectic, eutectic and hypereutectic aluminum-silicon based casting alloys.

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Toronto, Canada

Bernard Closset