Ore

France’s natural resources are limited in quantity. However, the coal veins are deep and difficult to work and are unsuitable for use in the manufacture of steel. Iron ores are of a low grade, and the uranium ore is found only in small quantities. Deposits of petroleum are almost nonexistent, and natural gas reserves discovered (1951) at Lacq in the Pyrenées are now nearly exhausted. Hydroelectric production, although well developed, does…

behind the Bitumen Froth Treatment process, as performed at Naphthenic Froth Treatment (NFT) operating sites. Bitumen is the valuable hydrocarbon component of the ore formation which begins in the ground, and is extracted by the Mining department. Prior to entering the Froth Treatment facility, the Bitumen Froth is created by mixing the ore with hot water for hydrotransport. Froth is the main input to the NFT process and undergoes four separation stages to improve the hydrocarbon recovery of the…

Primary Sources: Mountaingrove, Ruth. Diary. Box 9, Ruth Mountaingrove Papers, University of Oregon Special Collections, Eugene, OR. Mountaingrove's personal diary described her negative feelings about living in a mixed male and female community called Golden. She discussed feeling oppressed by the very presence of men in the community in many entries, wishing that she could instead live in an all-women collective and cited her partner Jean’s thoughts and feelings about men…

The Story of the Kobold Fast Facts Origin: Teutonic (Germany) Role: Servant and Mischief Maker What is the Kobold Origin Kobolds originated as small helper spirits in Teutonic Germany, where they can be found in carvings dating to the 13th Century. They are spirits, or of the faerie realm, and are most commonly found in woods or mines. Although they are helpers, once attached to a particular human or place they refuse to leave. If angered then the help turns to hindrance, and the…

growing population of almost fifty million, the country is making its way into becoming a less impoverished country. Tanzania imports and exports a few materials. The majority of the countries exports are gold, raw tobacco, precious metal ore, oily seeds, and copper ore. The country imports refined petroleum, palm oil, packaged medicaments (medications), cars and wheat. Many of the imports are found in the cities and urban areas but when you get into the rural areas, they become scare and less…

This method consists of passing an electric current through a nonmetallic conductor. This allows the aluminum to be separated from its ore. After filing his patent, Hall found out that French man named Paul Heroult who also found the electrolytic method and was applying for a patent. This provided a new level of difficulty in acquiring a patent and is also the reason that it took 3 years…

Ciminelli and Osseo-Asare, 1995; Lowson, 1982). Anderson (1951) reported 26 kJ/mol in the study of oxidation kinetics of galena (PbS) while Stenhouse and Armstrong (1952) reported an activation energy of 20 kJ/mol for the alkaline oxidation of pyrite. Koslides and Ciminelli (1992) suggested that during alkaline oxidation of sulphides, there is a change from chemical (activation energy > 40 kJ/mol) to diffusion (activation energy < 40 kJ/mol) control as the rate determining step when…

To most: when the country Africa is thought of, the parallel to it is poverty. Africa is a developing country, according to the rest of the countries. In “Africans are not poor,” by Lucy Lameck, the point of view is contrasting. “Poverty” is not the word the Tanzanians should be using in reference to their country. With wealth, poverty and social classes it is believed that Africa is far behind. Lameck gave an astounding speech to the Parliament of Tanzania helping them to gain a new perspective…

selective adsorption of sulphur from diesel fuels and of zeolites that remove nitrogen from transportation fuels has been ground-breaking. However, there are other processes that are quite harmful to the environment such as lead ore processing. Once lead is extracted from its ore by reduction with carbon, the waste often has traces of lead even after filtration that poisons water systems once dumped. This causes plants to die and causes animals and humans to get sick or even die. Yet even though…

Intermodal Rail Freight rail moves more than 70 percent of the nation’s coal, 58 percent of its raw metal ores, and more than 30 percent of its grain Truckload carriers are expected to increase their use of railroads to handle intermediate and long-distance trailer hauls into the future. On lower value goods, trucks share a dual natured relationship with railroads. They cooperate in providing intermodal services. They also compete to capture market share on goods like automobiles and auto parts,…