iron ore hematite concentrate
11china — /chuy neuh/, n. 1. a translucent ceramic material, biscuit fired at a high temperature, its glaze fired at a low temperature. 2. any porcelain ware. 3. plates, cups, saucers, etc., collectively. 4. figurines made of porcelain or ceramic material …
12China — /chuy neuh/, n. 1. People s Republic of, a country in E Asia. 1,221,591,778; 3,691,502 sq. mi. (9,560,990 sq. km). Cap.: Beijing. 2. Republic of. Also called Nationalist China. a republic consisting mainly of the island of Taiwan off the SE coast …
13Taconite — is an iron bearing, high silica, flint like rock. It is a Precambrian sedimentary rock referred to as a banded iron formation due to the typical alternating iron rich layers and shale or chert layers. The very finely dispersed iron content,… …
14Smelting — For other uses, see Smelt (disambiguation). Electric phosphate smelting furnace in a TVA chemical plant (1942) Smelting is a form of extractive metallurgy; its main use is to produce a metal from its ore. This includes iron extraction from …
15Mesabi Range — The Mesabi Range (upper center) is west of Lake Superior, north of Duluth, and far north of Minneapolis St. Paul. Nearby towns include Grand Rapids, Hibbing and Virginia, Minnesota …
16niobium processing — Introduction preparation of the ore for use in various products. Niobium (Nb) has a body centred cubic (bcc) crystal structure and a melting point of 2,468° C (4,474° F). Of the refractory metals, it has the lowest density and best… …
17Swaziland — /swah zee land /, n. a kingdom in SE Africa between S Mozambique and the E Republic of South Africa: formerly a British protectorate. 1,031,600; 6704 sq. mi. (17,363 sq. km). Cap.: Mbabane. * * * Swaziland Introduction Swaziland Background:… …
18Oxygen — This article is about the chemical element and its most stable form, O2 or dioxygen. For other forms of this element, see Allotropes of oxygen. For other uses, see Oxygen (disambiguation). nitrogen ← oxygen → fluorine ↑ O ↓ …
19mineral deposit — Introduction aggregate of a mineral in an unusually high concentration. About half of the known chemical elements (chemical element) possess some metallic (metal) properties. The term metal, however, is reserved for those chemical… …
20zinc processing — Introduction preparation of the ore for use in various products. Zinc (Zn) is a metallic element of hexagonal close packed (hcp) crystal structure and a density of 7.13 grams per cubic centimetre. It has only moderate hardness and can …
