In recent years, Chinese manganese metal industry, especially the development of the industry of electrolytic manganese metal exceptionally rapid, but the attendant environmental pollution problems also began to highlight as a manganese producing countries, how can we do better to protect manganese environmental services and economic development?
Manganese and manganese alloy is one of the important raw materials for iron and steel industry, aluminum industry, magnetic materials industry, chemical industry, indispensable. Well, what is the manganese industry development prospects? According to the survey data we know that, during the Second World War, the military and industrial needs, electrolytic manganese metal become an emerging industry. Electrolytic manganese metal by electrolysis to produce high purity manganese metal is very important in manganese industry. There were only a few countries of the former Soviet Union, the United States, Japan and several other have this technology. The electrolytic manganese metal production technology in china is introduced in the 1960s. in the end of the 1960s just a few thousand tons a year, the production capacity and output. Chinese steel production for the first time exceeded 100 million tons mark in 1996, since then has consistently ranked in the world steel production in the first position, the current annual production capacity of China's iron and steel industrial enterprises reached 700 million tons.
With the rapid development of high-tech industry, in particular, special steel, stainless steel and other new materials have appeared increasingly large proportion of manganese metal production in the metallurgical industry, market demand soared, even in short supply. electrolytic manganese metal characteristics due to its high purity, low impurity, is widely used in the field of non-ferrous metals, electronics, food hygiene, welding industry, aerospace industry, is very promising. Adding a certain amount of manganese in the steel can be made of stainless steel. Information from metal powder supplier, add 120-150 kg per ton of manganese in stainless steel will greatly reduce the cost of stainless steel, widely used in stainless steel kitchen utensils, hygiene kits, construction and decoration materials, which greatly broadens the purposes of manganese.
In order to improve the added value of the metal manganese production must be deep processing, the production of high value-added manganese products. Currently, some places are developed lithium manganese battery to replace the lithium cobalt oxide batteries. Widely used lithium batteries containing cobalt powder and manganese , and cobalt powder price is higher than the manganese, cobalt powder market price per tonne of about 40 million, about 20,000 yuan per tonne of manganese powder, both the price difference far. Manganese instead of cobalt powder, the cost of production of lithium batteries will be a significant decline, the manganese industry will also be a place in the development of new energy.
With the manganese project listed and disorderly competition, the environment causing potential harm, and in some places there was even a heavy metal pollution incidents. According to the investigation, manganese wastewater is harmful to human health, hexavalent chromium and other harmful metal ions. Hexavalent chromium ions, for example, it is swallowed poison or inhalation toxicology, skin contact may cause allergies are more likely to cause hereditary genetic defects may cause cancer by inhalation, lasting environmental risk, hexavalent chromium is easily absorbed by the body, it is through the digestive tract, respiratory tract, skin and mucous membranes invades the human body. electrolytic manganese metal production process, waste water, waste gas, waste, three bottleneck restricting the development of the electrolytic manganese metal industry to solve this problem, companies must increase investment, willing to spend money. Prohibit discharges to water bodies, dumping of industrial waste, urban garbage and other waste; prohibited containing mercury, cadmium, arsenic, chromium, lead, cyanide, phosphorus and other deadly toxic soluble slag discharges to water bodies, dumped or buried directly.
Source:http://www.mhcmp.com
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