cobalt ore encyclopedia

  • Cobalt in Persia. Identifications of cobalt in Persian blue glass and glazes are relatively few, but it is generally assumed that a deep blue color, usually identified as "azure" by early European travelers, betrays its presence, whereas greenish or turquoise blue is usually owing to the presence of copper.

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  • Cobalt blue, ranging in colour from grayish blue to pure sapphire, was widely used in East Asia and Europe for blue-and-white porcelain wares. Cupric oxide gives a distinctive series of blues, cuprous oxide a series of greens, and, in the presence of an excess of…

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  • With few exceptions, cobalt ore is not usually mined for the cobalt content. Rather, it is often recovered as a by-product from the mining of ores of iron, nickel, copper, silver, manganese, zinc, and arsenic, which contain traces of cobalt.Complex processing is required to concentrate and extract cobalt …

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  • Description. A hard, ductile metallic element. Cobalt was first identified by Georg Brandt of Sweden in 1735. It has an abundance of 0.001-0.002% in the earth's crust and is found in the minerals smaltite, cobaltite, chloanthite, linnaetite, and erythrite.

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  • Jun 23, 2016· The Canadian Encyclopedia, s.v. "Cobalt", Last Edited June 23, 2016, https: ... Cobalt is a minor constituent of many of the large copper ore bodies of Zaire and Zambia, but its recovery as a byproduct has made these ores the leading world source for over 50 years. Small quantities of cobalt are also recovered from copper-nickel sulphide ores.

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  • Cobalt as a pollutant. ... In the process of concentration of the cobalt ore, workers are exposed to dust and fumes containing both cobalt and other metals and metalloids such as arsenic and nickel. Carbon monoxide is formed during melting, and hydrogen sulphide is used for the precipitation of copper. ... About the Encyclopedia.

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  • Sep 12, 2014· The word cobalt is derived from the German kobalt, from kobold meaning "goblin", a superstitious term used for the ore of cobalt by miners. The first attempts at smelting these ores to produce metals such as copper or nickel failed, yielding simply powder (cobalt(II) oxide) instead.

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  • The arsenic cobalt ore deposits of greatest industrial importance are the Khovu-Aksy deposit (Tuva ASSR) in the USSR and the Bou Azzer region in Morocco. Sulfurous cobalt ores belong to the group of complex nickel, copper, and iron ores.

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  • cobalt ore encyclopedia - mtsexam.in. cobalt processing britannica article free,… cobalt copper ore production. cobalt processing encyclopedia britannica. aug 23, 2013 cobalt processing, ... More Info cobalt ore processing plant - kartazagreba.org. cobalt ore …

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  • cobaltite (kō´bôltīt, kōbôl´tīt), opaque, silver-white, sometimes reddish or grayish mineral of the pyrite group, a compound of cobalt, arsenic, and sulfur, CoAsS. It occurs in crystals of the cubic system, also in compact to granular masses. It is an important ore of cobalt, found chiefly in …

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  • Roasting is a step of the processing of certain ores.More specifically, roasting is a metallurgical process involving gas–solid reactions at elevated temperatures with the goal of purifying the metal component(s). Often before roasting, the ore has already been partially purified, e.g. by froth floatation.The concentrate is mixed with other materials to facilitate the process.

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  • History of Cobalt Sources. Cobalt sources have changed over its history, from Norway, Sweden, Hungary and Germany (Saxony) to a dependence on the African Copper Belt from the 1970s. In more recent times, sources have diversified further with increasing amounts coming from nickel ores and recycling of scrap and cobalt-containing intermediates.

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  • cobalt ore encyclopedia - universalstayin, Encyclopedia Britannica cobalt processing, preparation of the metal for use in various, Cobalt | Article about Cobalt by The Free Dictionary . Cobalt Ore Processing - ccsindiain. Cobalt Ores Article about Cobalt Ores by The, publications and a free library Read more; cobalt processing Britannica ...

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  • Encyclopedia of Chemical Processing and Design: Volume 31 Natural Gas Liquids and Natural Gasoline to Offshore Process Piping: High Performance Alloys CRC Press Book. cobalt Definition & Facts Britannica Encyclopedia Britannica. Jan 24, 2018 With few exceptions, cobalt ore is not usually mined for the cobalt content.

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  • Nickel was found when a copper-coloured ore did not make copper metal. Later it was found out that the ore was actually a nickel containing ore. Nickel was isolated as a metal in 1751. At first, the copper colored nickel ore was the only source. Later, it was made as a byproduct of cobalt blue making.

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  • Cobalt is a naturally occurring element in the earth's crust. It is a very small part of our environment and very small amounts are needed for many animals and humans to stay healthy. Cobalt poisoning can occur when you are exposed to large amounts of cobalt. There are three basic ways that cobalt can cause poisoning.

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  • copper and cobalt ore processing - Stone Crusher Price ... Cobalt ore processing plant setup cost,copper ore … Cobalt Mining Process. ... Read more. Copper, nickel and cobalt processing equipment, process. Cobalt extraction techniques - Wikipedia, the free encyclopedia. Cobalt ore. Several methods exist for the separation of cobalt from ...

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  • With few exceptions, cobalt ore is not usually mined for the cobalt content. Rather, it is often recovered as a by-product from the mining of ores of iron, nickel, copper, silver, manganese, zinc, and arsenic, which contain traces of cobalt.

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  • Cobalt . The Canadian Encyclopedia. Feb 6, 2006 . Small quantities of cobalt are also recovered from copper nickel sulphide ores. The latter, which are the source of most of the world's nickel, are. Contact US Nickel . Encyclopedia . So they called the fake copper ore Old Nick's copper. Since then, nickel has become a very valuable metal.

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  • The name 'Cobalt' means 'Devil's Copper' in ancient Sadida. It's suited to the forging of light and stylish - but lethal - weapons. By continuing to browse this website or by clicking on the X, you consent to the use of cookies that enable us to collect site-visit statistics and offer you videos, share buttons, personalized ads, and a chat feature.

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  • Cobalt-based colors and pigments have been used since ancient times for jewelry and paints, and miners have long used the name kobold ore for some minerals. Cobalt occurs in various metallic-lustered ores, for example cobaltite (CoAsS), but is mainly produced as …

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  • The word cobalt is derived from the German kobalt, from kobold meaning "goblin", a term used for the ore of cobalt by miners, who thought it worthless and who found that it was poisonous and that it polluted and degraded other mined elements, ... ↑ Encyclopedia Britannica Online.

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  • Define cobaltine. cobaltine synonyms, cobaltine pronunciation, cobaltine translation, English dictionary definition of cobaltine. also co·balt·ine n. ... Encyclopedia; Wikipedia ... A rare silver-white to gray mineral, cobalt sulfarsenide, CoAsS, that is a cobalt ore and is used in ceramics. Want to thank TFD for its existence? Tell a friend ...

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  • Cobalt extraction refers to the techniques used to extract cobalt from its ores and other compound ores. 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

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  • Mar 11, 2019· The word cobalt is derived from the German kobalt, from kobold meaning "goblin", a superstitious term used for the ore of cobalt by miners. The first attempts to smelt those ores for copper or nickel failed, yielding simply powder (cobalt(II) oxide) instead.

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  • Oct 18, 2012· Cobalt, Ont, incorporated as a town in 1907, population 1133 (2011c), 1224 (2006c). The Town of Cobalt, located about 480 km north of Toronto near the Québec border and Lake Timiskaming, lies between the clay belt to the north around New Liskeard and the heavily forested area of …

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  • Cobalt minerals are rare and do not form any significant accumulations of ore. Nickel ores, which contain cobalt as an impurity, are the main source for the industrial extraction of cobalt. The processing of these ores is extremely complex, and the method used depends on the composition of the ore.

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  • This page is a list of all oxides.Oxides are chemical compounds containing oxygen in an oxidation state of -2.. Metal oxides. Aluminium oxide, very hard, used as abrasive; Antimony trioxide, white solid; Antimony tetroxide, white solid; Antimony pentoxide, yellow solid, oxidizing agent; Arsenic trioxide, white solid, highly toxic; Arsenic pentoxide, white solid, highly toxic, oxidizing agent

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  • Cobalt - Wikipedia, the free encyclopedia. Cobalt is a chemical element with symbol Co and atomic number 27. Like nickel, cobalt in the Earth's crust is found only …

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  • Cobalt is a transition metal.It is shiny and conducts electricity. It is magnetic.It is a hard metal. It is moderately reactive. Iron is more reactive and copper is less reactive. It dissolves slowly in acids.This reaction makes hydrogen and a salt of cobalt. Cobalt is normally in its +2 oxidation state as an ion.Some chemical compounds contain cobalt ions in its +4 oxidation state.

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