refining slag
41cobalt processing — Introduction preparation of the metal for use in various products. Below 417° C (783° F), cobalt (Co) has a stable hexagonal close packed crystal structure. At higher temperatures up to the melting point of 1,495° C (2,723° F), the… …
42uranium processing — Introduction preparation of the ore for use in various products. Uranium (U), although very dense (19.1 grams per cubic centimetre), is a relatively weak, nonrefractory metal. Indeed, the metallic properties of uranium appear to be… …
43Michigan Smelter — Coordinates: 47°07′34″N 88°37′25″W / 47.1261°N 88.6236°W / 47.1261; 88.6236 The Michigan Smelter was a copper smelter located at Cole …
44chemical industry — Introduction complex of processes, operations, and organizations engaged in the manufacture of chemicals and their derivatives. Although the chemical industry may be described simply as the industry that uses chemistry and… …
45Cobalt extraction techniques — Cobalt ore Several methods exist for the separation of cobalt from copper and nickel. They depend on the concentration of cobalt and the exact composition of the used ore. Contents …
46Derbyshire lead mining history — Goodluck Mine in Via Gellia. This article details some of the history of lead mining in Derbyshire, England. Contents 1 …
47Silver — This article is about the chemical element. For the color, see Silver (color). For other uses, see Silver (disambiguation). palladium ← silver → cadmium …
48Cupellation — is a metallurgical process in which ores or alloyed metals are treated under high temperatures and carefully controlled operations in order to separate noble metals, like gold and silver, from base metals like lead, copper, zinc, arsenic,… …
49Deloro, Ontario — Deloro is a community in the Municipality of Marmora and Lake in Hastings County, Ontario, Canada. Deloro is about 200 km southwest of Ottawa and 65 km east of Peterborough. The Deloro Mine site sits along the banks of the Moira River,… …
50nitrogen group element — ▪ chemical elements Introduction any of the chemical elements that constitute Group Va of the periodic table (see Figure >). The group consists of nitrogen (N), phosphorus (P), arsenic (As), antimony (Sb), and bismuth (Bi). The elements share… …
