Advantages of the Corex Direct use of Non-coking coal As the coal is chared inside the melter gasifier, even non-coking coal can be used, making a coking plant unnecessary. These have advantages and disadvantages compared to the usual extraction methods. To provide a metal smelting furnace capable of individually separating at least one kind of a mat and a metal which are generated in a smelting reaction (3), and each slag with excellent separability without temporarily interrupting -> Enables simple and optimum operator control. Disadvantages Mining causes damage to the environment. Advantages Blast furnace - Very quick and produces high quality iron Electrolysis - produces pure metal,prevents corrosion or rusting and its a quick method Ores - useful products can be made and provides jobs Disadvantages Some advantages of bioleaching include: Bioleaching can stabilise sulphate toxins from the mine without causing harm to the environment. Chapter 4 The Smelting of Copper The first written account of the processes of smelting and refining of copper is to be found in the 12th century.1 On smelting: Copper is engendered in the earth. Blast Furnace Ironmaking Advantages: 1. ( Log Out /  As a resolution, cleaner technologies should be used to substitute the smelting process so that less toxic waste and sulfur dioxide would be produced. The main developments of this technology in recent years are as follows: Fully-automatic VAR re … It is good to use converter to dispose lead-acid battery plate for secondary lead.Converter has higher thermal efficiency,higher operation rate than reverberatory furnace,it also has some advantages as below:high degree of mechanization,good working conditions,good environment protection effect. These chemicals seep out in the form of slag and can have a negative effect on the environment. Smelting Furnaces By Dr. Bharati Rehani Metallurgical and Materials Engg. The high dome temperature exceeds 1,000 C, resulting in This raises a moral dilemma as although health is a top priority, the industry produces too much jobs and wealth to simply start placing restrictions. In my personal opinion, I do think that the base smelting industry should find a way to reduce the emissions of toxic waste and sulfuric acid and fast. Low power requirements; Sulfur dioxide contributes to air pollution but when in the atmosphere, it reacts with the atmosphere and falls down as sulfuric acid rain, raising the acidity levels of oceans, lakes and the soil, harming the wildlife that resides in them. Change ), You are commenting using your Facebook account. When open-type blast furnace smelting, flue gas’s SO2 concentration only about 0.5%, when airtight blast furnace smelting, flue gas’s SO2 concentration could reach 3% ~ 5%, and even more...Imperial smelting furnace not only can make acid, but also can reduce the environmental pollution. Nickel itself has even been observed to cause some forms of cancer and bronchitis. Many useful metals are produced such as Zinc, Lead, Copper, and Nickel. Create a free website or blog at WordPress.com. In order to overcome the above shortcomings, in the mid - 1950 - s, the airtight blast furnace for copper concentrates smelting came out. An example of a reaction taking place is NiSO4(l) + H2(g)—-> Ni(s) + H2SO4(l). Advantages : 1. So in history, it is one of the most important copper smelting methods. Bioleaching is basically when bacteria eats away on the copper ore. We get 20% of copper from this process. We have a delicate planet with limited resources. Smelting is a process of applying heat to ore in order to extract a base metal.It is a form of extractive metallurgy.It is used to extract many metals from their ores, … The aim of smelting is to segregate the desired components in a high-grade converter matte and the undesired components in a slag. The Smelting industries are trying to reduce emissions by using cleaner and new technology however many argue that it is simply not enough and that no human should have to be exposed to cancerous chemicals. This however, does not come without a price. Mining metals gives miners work to do, so money is brought into the economy- leading to better quality of life. 2. Fill in your details below or click an icon to log in: You are commenting using your WordPress.com account. It involves heating the rock to very high temperatures. It can improve the hearth efficiency and melt temperature; reduce copper rate in slag and improve the recovery rate; reduce coke rate; SO2 concentration in furnace gas increases and reduce the environmental pollution. Poisonous sulfur dioxide emissions harm the environment and can cause health problems for miners, and bioleaching avoids this process entirely. Machine with a full range of alarm function, when the machine fails to automatically stop … The Canadian environmental act works to reduce toxic substances in the environment. The blast furnace is one of the most important metallurgical equipment,it has the following characteristics:high thermal efficiency,high specific productivity(specific capacity),high metal recovery rate,low cost,less covering area and so on. 1. Phytomining describes the production of a metal crop by using high-biomass plants, which are plants that produce energy or a usable resource when burnt. This … Or, we could simply recycle metal based products to reduce the need to smelt. Change ), You are commenting using your Google account. Compared with the traditional open furnace, imperial smelting furnace has the following advantages: 1. , zinc has a low boiling point function, when the smelting other! 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