Five big stumbling block to titanium dioxide industry in China forward

National chemical industry productivity promotion center of titanium white sub-center experts chang-he liu thinks, at present five big problems with the titanium dioxide industry in China. These problems become the enterprise development Stronger, more affect the healthy growth of the industry as a whole, for titanium white production and price has had a huge impact.

Forward a stumbling block to titanium dioxide industry five big problem

First, the chlorination process reeling production technology. Chlorination process titanium pigment because of its production process and high product quality, environmental protection is internationally recognized, a new generation of advanced technology, represents the titanium pigment process The direction of development. In recent years, vigorously promote the titanium dioxide industry in China to upgrade, the relevant departments on the chlorination process titanium pigment production key support areas. But because the chlorination process titanium white production investment big, the process The complex technology, high risk, although domestic hing mau titanium industry, hundred union, yunnan new instant enterprise has successively built the chlorination process titanium pigment, but it can also a handful of the chlorination process titanium pigment production enterprises.

Second, enterprises production layout is fragmented. Titanium dioxide is a technology-intensive products, the production difficulty is big, high technical content, production is relatively concentrated. The United States dupont chlorination process production scale of 330000 tons / In Finland sulfuric acid method ChanChang scale is 120000 tons/year, and the titanium dioxide industry in China, has 150000 tons/year and the manufacturer of the production capacity of more than just in panzhihua titanium industry (including holding and joint-stock enterprise) , henan, shandong, east sichuan dragon pythons bayi, four, with 80000 ~ 100000 tons/capacity of shandong dawn titanium industry, ma on shan Venus titanium white, such as seven, compared with the international industry is very loose, was born Capable of achieving the benefits of scale production enterprise.

Third, the product homogeneity, low grade. Restricted by funding and technology, domestic titanium white production are mostly sulfuric acid method, with foreign production of titanium dioxide chlorination process on the quality gap. countries Outside the enterprise generally has more than 10 grade pigment varieties, to meet the needs of the development of different industries, and our country has continued for many years the same old varieties, product whiteness, elimination of chromaticity, particle size and particle size Cloth, abrasive powder dispersion important indexes such as there is a gap with foreign similar products. So, up to now the domestic some important industry demand performance, USES a wide range of rutile type products, more than 70% Rely on imports.

Fourth, the titanium white production environmental governance slow pace. Sulfuric acid method of titanium white production of "three wastes" problems. It is understood that in titanium concentrate as raw material, every one ton of titanium dioxide production, need More than four tons of sulfuric acid consumption of sulfuric acid eventually translate into copperas, waste acid and acid waste water, waste gas and incomplete reaction of slag discharge. In recent years, our country law for sulphuric acid process, environmental governance in general Use has made great progress, but the management of waste acid and acid waste water still did not meet the standards set by the state, some companies unable to bear large environmental protection investment was forced to shut down, facing out.

Fifth, high-end products for bricks without straw. Acid titanium pigment production abroad, mostly adopts the high grade of acid dissolved titanium slag. Restricted by the price and quantity, the domestic are using ilmenite, and Titanium iron ore mines in our country and changeful, poor quality, that is to say the quality of the domestic ilmenite limits the production of high-quality titanium dioxide.