The hottest titanium chemical industry conspires t

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The titanium chemical industry conspired to accelerate the upgrading of titanium slag

from July 15 to 16, the titanium dioxide industry branch of China Coating Industry Association and the titanium zirconium hafnium branch of China Nonferrous Metals Association jointly held the first China Titanium chlorination technology and raw material application seminar in Beijing. It was learned from the meeting that at present, there is a shortage of high-quality titanium rich materials in China, and the existing titanium slag is not useful because of its low quality. Accelerating the upgrading of titanium slag has become the key to solve the bottleneck of the development of domestic titanium chemical industry

according to the introduction, the production process of titanium tetrachloride is a common front process for the production of titanium metallurgical products such as sponge titanium and titanium materials and titanium chemical products such as titanium dioxide by chlorination method. It is also a process with high environmental risks in the whole production process. At present, titanium tetrachloride required for the production of sponge titanium and titanium dioxide by chlorination in the world is basically prepared by two types of chlorination methods, namely boiling chlorination and molten salt chlorination. In recent years, China's titanium industry chain has developed rapidly. From 2008 to 2012, the output of sponge titanium increased by nearly 14% annually, and the output of titanium dioxide also increased by 16% annually. In 2012, the output of domestic sponge titanium and chlorinated titanium dioxide reached 81500 tons and 27000 tons respectively, and the annual use of high-quality titanium rich materials (including rutile and high titanium slag, titanium dioxide content> 90%) is about 280000 tons. In the next five years, the annual output of titanium sponge in China will reach 100000 tons, the annual production capacity of titanium dioxide by chlorination will increase by 500000 tons, and the demand for high-quality titanium rich materials will reach 800000 tons per year

Meng Jun, chief engineer of Guiyang Aluminum Magnesium Design Institute, said that the current shortage of high-quality titanium rich materials in China has directly affected the development of sponge titanium and chlorinated titanium dioxide industry. In particular, China is highly dependent on the imported chlorinated titanium dioxide technology, and the requirements for raw materials are very strict. At this stage, the vast majority of high titanium slag produced from domestic titanium resources continue to promote high-quality development and innovative development, which cannot meet its requirements. According to him, more than 80% of China's titanium resources are rocks and minerals. The content of calcium oxide and magnesium oxide in minerals is high, and the content of titanium dioxide in titanium slag is only 76% - 78%. Therefore, increasing the research and development of titanium slag upgrading technology and providing qualified titanium rich materials for domestic titanium dioxide by chlorination has become the primary task of China's titanium slag industry

according to the introduction, at present, there are more than 60 titanium slag production enterprises in China, mainly concentrated in Sichuan, Yunnan, Hebei, Liaoning, Inner Mongolia and other provinces, with an annual production capacity of 1.5 million tons. Although there are many titanium slag production enterprises in China, there are few large-scale enterprises. There is only one enterprise with an annual production capacity of more than 100000 tons, which lags far behind foreign countries. In recent years, due to the shortage of domestic power resources and titanium concentrate, some titanium slag enterprises have stopped production or reduced production. The annual output of titanium slag in China is about 650000 tons, including about 200000 tons of chlorinated slag, which is far from meeting the demand of the existing titanium industry for high-quality titanium slag raw materials, and must be supplemented by imported rutile and high titanium slag

according to Meng Jun, what is worth learning from the upgrading of titanium slag in the world is that QIT company expects to maintain a rapid growth in the second half of the year. The company will definitely use closed electricity to smelt the appropriate number of samples in n furnaces. After separating metal iron, the titanium dioxide content of titanium slag is 78% - 80%, and then use chemical treatment process to remove calcium oxide, magnesium oxide and iron impurities in titanium slag, which can increase the titanium dioxide content of titanium slag to 95%, It can completely meet the requirements of raw materials for titanium dioxide production by chlorination. Meng Jun believes that this production process should become the key technology of titanium slag upgrading and the main direction of scientific and technological research in the future

it was learned from the meeting that after years of tackling key problems in the industry, a number of backbone enterprises such as Pangang titanium industry, Yunnan Metallurgical Group Xinli titanium industry, Jinzhou titanium industry, Beijing thick Zheng technology have made new breakthroughs in the development of molten salt chlorination technology and short-term test data process technology on the plastic manufacturer's data sheet without hesitation, It provides a continuous impetus for the development and utilization of titanium resources and the upgrading of titanium chemical industry in China

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