While the process for making aluminum is a bit more complicated than some of the other metals its actually an extremely common metal tungsten has the highest melting point and the highest tensile strength of any of the pure metals this makes it ext
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While the process for making aluminum is a bit more complicated than some of the other metals its actually an extremely common metal tungsten has the highest melting point and the highest tensile strength of any of the pure metals this makes it ext...
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Carnallite precipitates with other potassium and magnesium evaporate minerals such as sylvite kainite picromerite polyhalite and kieserite massive beds of carnallite are found but crystals are rare the crystals will unfortunately absorb water from hu...
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2019-1-4class x chapter 3 metals and non-metals science question 1 define the following terms imineral ii ore iii gangue answer imineral most of the elements occur in nature as in combined state as minerals...
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2015-7-26the process the concentrated ore is heated strongly with silicon dioxide silica calcium carbonate and air or oxygen in a furnace or series of furnaces most of the sulphur in the chalcopyrite turns into sulphur dioxide gas this is used to...
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An alloy is a metal created by combining two or more metallic elements different types of alloys are made for greater strength of the material or for resistance to corrosion alloys are created by melting the main metallic ingredient and then the other...
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Digging for rare earths the mines where iphones are born lead to a silo where the ore gets pounded into pieces about three-eighths of inch wide turns into a slurry that moves to a so...
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2020-4-3they heated the silver ore and blew air over it a process called cupellation the silver does not react to the air but the base metals such as lead and copper oxidize and separate from the...
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2020-1-28in real life a metal is an element of the periodic table which belongs to one of certain groupscolumns and has a specific type crystal lattice with free electronsin fiction especially fantasy a metal is shiny stuff with wonderful properties l...
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Nature entices man into the adventure of metallurgy by an initial gift of an almost magic charm gold the most attractive and precious of metals in every society is also the easiest for primitive man to acquire gold is bright incorruptible malleable...
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2007-10-31iron ore is converted into various types of iron through several processes the most common process is the use of a blast furnace to produce pig iron which is about 92-94 iron and 3-5 carbon with smaller amounts of other elements...
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2020-4-10extruded profiles building systems rolled products precision tubes welded tubes poles casthouse products low-carbon aluminium bauxite alumina services...
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Dr f b miller of the sidney mint created a process to purify gold using chlorine which forms chlorides with silver and other ore impurities but leaves gold unaffected the refiner places the ore in clay pots heats the vessels in a furnace and pumps c...
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Iron ore price falls below 60 a tonne as china fights pollution as a major new mine called roy hill has ramped up output and highly polluting process that turns iron ore fines into a...
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2 how does iron ore form nearly all of earths major iron ore deposits are in rocks that formed over 18 billion years ago at that time earths oceans contained abundant dissolved iron and almost no dissolved oxygen the iron ore deposits began forming whe...
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An alloy is a material made by melting one or more metals together with other elements this is an alphabetical list of alloys grouped according to base metal some alloys are listed under more than one element since the composition of the alloy may vary...
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Minerals precious metals and gems minerals minerals are solid substances that have formed naturally in the earth it is essential in the steel making process and petroglyphs were carved into it in the southwest it is useful in regulating blood...
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2018-9-1minings war on waste turns scraps into batteries and fertiliser if a useful way of dealing with that residue or utilising it in another process can be found thats beneficial for everybody...
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2014-6-26interested in the processes of smelting or roasting your ore to recover its gold and silver and is highly corrosive liquid converting that molten sulfide matte to metal is called smelting small scale smelting can be done in a crucible in fa...
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Manufacturing brass is almost impossible because copper and zinc have different melting points zinc melts at 787f and boils at about 1665f which is much lower than whats needed to melt copper and combine with zinc the zinc vapor needed is created befor...
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In primary forming the steel that is cast is then formed into various shapes often by hot rolling a process that eliminates cast defects and achieves the required shape and surface quality hot rolled products are divided into flat products long produ...
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Galvanization is a process in which zinc is heated to a high temperature and then regular scrap metals such as iron or steel are dipped into the hot zinc this is why the guardrails on the sides of the highway look like they are aluminum this process is...
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2020-4-7for instance a rock called pegmatite is formed by the crystallization of magma enriched with water in the veins of other rocks and may contain beryl tourmaline and topaz igneous rocks are divided into two types-- volcanic rock extrusive and pl...
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What sets certain metals apart is the duration of time it takes for them to begin rusting or corroding here are a few of the most common metals and how they stand up against rust and corrosion does copper rust copper does not rust however it does cor...
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The method used to extract metals from the ore in which they are found depends on their reactivity for example reactive metals such as aluminium are extracted by electrolysis while a less-reactive metal such as iron may be extracted by reduction with c...
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