ANTHRACITE

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In the last 15 years Minermet Group has opened up a new Division for Anthracite, Coal and Coke which is expanding very much, for markets in Europe, Russia, Middle East, Pakistan, India, Vietnam,  Australia and Indonesia.


Coal (from the Old English term col, which has meant "mineral of fossilized carbon" since the 13th century)is a combustible black or brownish-black sedimentary rock usually occurring in rock strata in layers or veins called coal beds or coal seams. The harder forms, such as anthracite coal, can be regarded as metamorphic rock because of later exposure to elevated temperature and pressure. Coal is composed primarily of carbon along with variable quantities of other elements, chiefly hydrogen, sulfur, oxygen, and nitrogen.

Throughout history, coal has been used as an energy resource, primarily burned for the production of electricity and/or heat, and is also used for industrial purposes, such as refining metals. A fossil fuel, coal forms when dead plant matter is converted into peat, which in turn is converted into lignite, then sub-bituminous coal, after that bituminous coal, and lastly anthracite. This involves biological and geological processes that take place over a long period. The Energy Information Administration estimates coal reserves at 948×109 short tons (860 Gt).One estimate for resources is 18 000 Gt.

Coal is the largest source of energy for the generation of electricity worldwide, as well as one of the largest worldwide anthropogenic sources of carbon dioxide releases. In 1999, world gross carbon dioxide emissions from coal usage were 8,666 million tonnes of carbon dioxide.In 2011, world gross emissions from coal usage were 14,416 million tonnes.Coal-fired electric power generation emits around 2,000 pounds of carbon dioxide for every megawatt-hour generated, which is almost double the approximately 1100 pounds of carbon dioxide released by a natural gas-fired electric plant per megawatt-hour generated. Because of this higher carbon efficiency of natural gas generation, as the market in the United States has changed to reduce coal and increase natural gas generation, carbon dioxide emissions have fallen. Those measured in the first quarter of 2012 were the lowest of any recorded for the first quarter of any year since 1992.In 2013, the head of the UN climate agency advised that most of the world's coal reserves should be left in the ground to avoid catastrophic global warming.

Coal is extracted from the ground by coal mining, either underground by shaft mining, or at ground level by open pit mining extraction. Since 1983 the world top coal producer has been China.In 2011 China produced 3,520 million tonnes of coal – 49.5% of 7,695 million tonnes world coal production. In 2011 other large producers were United States (993 million tonnes), India (589), European Union (576) and Australia (416).[9] In 2010 the largest exporters were Australia with 328 million tonnes (27.1% of world coal export) and Indonesia with 316 million tonnes (26.1%),while the largest importers were Japan with 207 million tonnes (17.5% of world coal import), China with 195 million tonnes (16.6%) and South Korea with 126 million tonnes (10.7%).

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Q:Do you use charcoal for fish farming?
Activated carbon has a strong physical adsorption and chemical adsorption ", can be certain organic compounds adsorption removal effect by using this principle, we can quickly and effectively remove harmful substances, the aquarium water odor and pigment and so on, so the water quality directly and rapidly improve.
Q:What is the effect of bamboo charcoal package
In addition, we should pay attention to the choice of bamboo charcoal, and not just to determine the price of bamboo charcoal. First of all to find out where you want to use, if you want to remove the taste, then the best bamboo charcoal. Because the main is to use high quality bamboo as raw material processing, charcoal fine porous surface area, if the ambient humidity, can absorb moisture, high quality charcoal bag in addition to eliminate moisture and formaldehyde, rich in minerals and far infrared release. Can relieve fatigue. And the quality of hard and thin bamboo charcoal, strong adsorption. Placed in the taste of the place, can be quickly removed in addition to taste at the same time from the bamboo charcoal anion generated by the penetration, can relax the nerves, eliminate fatigue. In the room, the negative ions generated from the bamboo charcoal and the particles in the air collided to make it charged, these charged particles easily attached to the wall, mirror, floor, to achieve the purpose of air purification. It is worth noting that: Although the bamboo charcoal package has the adsorption of formaldehyde, but after being used for a long time because of the moisture in the air is too much, it will release formaldehyde adsorption. Therefore, in the process of using the note every three months drying time, the harmful molecules in bamboo charcoal formaldehyde killed for long-term use.
Q:How to solve the problem of coal spontaneous combustion
Coal in the process of piling up spontaneous combustion occurs frequently, this is because the coal at room temperature will also be slow oxidation of oxygen in the air. Oxidation at the same time have a certain amount of heat, if the heat can not be dissipated, the heat in the coal heap together, temperature will rise, temperature and accelerate the oxidation of coal, when the temperature is higher than 60 DEG C when the coal temperature rises rapidly, if not timely treatment, it will cause a fire, this is the pile of coal only by self oxidation without external fire caused by the "spontaneous combustion" phenomenon. Prone to oxidation of lignite and long flame coal is more prone to spontaneous combustion".
Q:Trouble who told me the coal index of English code
Air dried base volatile (Vad), dry base volatile matter (Vd), dry ash free volatile matter (Vdaf) and base volatile (Var).Air dried base ash (Aad), dry base ash (Ad), received base ash (Aar).Air dried base all sulfur (St, AD), dry base full sulfur (St.d) and received base sulfur (St, AR).
Q:Coal can be eaten?
A female scientist Aniya Rush LAN Wroclaw, recently invented a new method of lignite as a feed additive to the pigs, pigs grow faster, good quality, but also improve the environmental pollution of pig farms and mines
Q:Add sugar to charcoal charcoal is to do hair.. what!?
3, when heated to about 60 degrees into the lemon juice, continue to stir, after a little hard to get rid of soy milk.4, put the pot on the table, then add alcohol disinfection.In 5, clean utensils made of towel, and then came two napkins, Soybean Milk dew will pour out.6, residue on the napkin can be directly discarded.7, soy milk in addition to hair finish
Q:How to test coal
Copy the following into a DOC file, print, slowly lookIndustrial analysis of coal 1The industrial analysis of coal, also called the technical analysis and practical analysis of coal, is the basic basis for evaluating the quality of coal. In the national standard, the industrial analysis of coal includes the determination of moisture, ash, volatile matter and fixed carbon. Determination of moisture, ash, volatile matter and fixed carbon in coal. Generally, the moisture, ash and volatile matter of coal are measured directly, while the fixed carbon is calculated by subtraction. Broadly speaking, coal industry analysis including coal - Determination of total sulfur content and calorific value of the whole industry, also called coal analysis.
Q:The necessity of power coal washing
A coal is an important part of the coal industry x0d produced from coal mine or open-pit coal gangue, always contain a certain amount of. Because in the mining process, with the top and bottom rock gangue and crushed coal seam are often mixed with coal; and different thickness of coal seam with the thickness of the layer (clip in), floors, roof and floor rock properties and operation methods are different, the amplitude fluctuation of the gangue, and randomly mixed with coal, lead mine or open-pit coal ash has great fluctuation; especially with the modernization of the coal industry, coal mining, coal unit is difficult to implement rock well, can not be on the working surface of picking, will inevitably lead to decline in the quality of raw coal; in order to make full use of energy, low quality coal mining has gradually expanded. Therefore, wellhead coal is only a semi-finished products. For example, Liaoning Province Pure coal ash several opencast coal mine are low, 10.17.47%, when using a shovel mining, the average rate of coal gangue reached 24.44%, into the factory wellhead raw coal ash up to 27.10~41.9% (see table 6-1-1). In the actual production of open-pit mine, there is a part of the coal (particularly low rate generally less than 20%) of coal gangue, the gangue turned to the dump line, use a number of artificial out part of the coal. If all or most of the Department to the coal washing plant washing, is mine before the election, raw coal ash and gangue rate will far exceed the table 6-1-1 number. So I think. Used excavator bucket of open-pit coal out of coal and gangue is different than by a mixture of product sales do not have certain requirements on the quality of the coal units. So open-pit mine production of raw coal, so how well? The word rather produced from the mine coal containing There are 15~40% of the gangue, although its pure coal ash is 7~25%, but because of a large number of external ash, the original coal ash is about 13~50%.x0d
Q:Does Medicinal Charcoal Tablets have any effect on gout
So gout patients should eat alkaline foods, such as vegetables, potatoes, sweet potatoes, milk, melon and watermelon is not only alkaline food, there is a good diuretic effect, is conducive to the excretion of uric acid.And Medicinal Charcoal Tablets is alkaline food can eat.
Q:Why is coal spontaneous combustion?
The spontaneous combustion of coal, especially those of low-grade bituminous coal, occurs when the heat absorbed from the environment is greater than the amount of heat released into the environment

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