Titanium white industry calls for green process applications
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The chairman of the China Coatings Industry Association Titanium Dioxide Branch Council and Benliu said that in 2018, the total output of 39 full-scale titanium dioxide producers in China was 2,954,300 tons, an increase of 84,800 tons or 2.95%. There are three major problems in the current industry development: high-end products are insufficient, low-end products are surplus, and innovation ability is not strong; the process structure is not coordinated, and the sulfuric acid method is still the main method, and the chlorination method is small; the resource development is extensive, and the utilization level is not high. For example, the yield of titanium concentrate in Panxi is only 35%.
“At present, more than 60% of titanium dioxide enterprises in the world have adopted a greener chlorination process. The penetration rate of chlorination in developed countries in Europe and America is above 70%. However, about 95% of the production process in China is still sulfuric acid, chlorine. The production capacity of titanium dioxide only accounts for about 5% of the total titanium dioxide production capacity in the country,†said Zheng Fuqiang, Ph.D., Central South University.
“Foreign titanium dioxide enterprises have already developed a green development technology route, and domestic green development has just started.†Liu Changhe, senior consultant of the Coatings Association Titanium Dioxide Branch* Committee, said that during the rapid development of the domestic titanium dioxide industry, part of The lack of green development concept, coupled with the government’s lack of policy support for the chlorination process and the policy constraints on the sulfuric acid process, led to the rapid expansion of the production capacity of the sulfuric acid process, resulting in an imbalance in product structure, and the sulfuric acid titanium dioxide* was finally included in the country. Restricted class and "double high" product catalogs. Although the country has introduced a series of new management standards, it is difficult to fully implement it in a short period of time. The development of domestic chlorinated titanium dioxide has a long way to go.
"At present, chlorinated titanium dioxide will not bloom in China like the sulfuric acid method." Tan Ruiqing, vice chairman of Longyi Lilian Group, said that the market size of China's chlorinated titanium dioxide is currently more than 200,000 tons/year. Basically, multinational companies and the existing 2 to 3 Chinese chlorinated titanium dioxide enterprises are equally divided.
Tan Ruiqing said that in the long run, the proportion of chlorinated titanium dioxide has gradually increased in China. The chlorination process has the characteristics of capital and technology intensiveness, and has a higher threshold for new entrants. He suggested that the state should modify the “Industrial Structure Adjustment Guidance Catalogue (2019, Draft for Soliciting Opinions)†to encourage “single-line production capacity of 30,000 tons/year and above chlorinated titanium dioxide production†to “single-line production capacity of 60,000 tons/year and The above chlorination method produces titanium dioxide". Because there is no international scale of 60,000 tons/year or less, the national industrial policy should also keep pace with the times and avoid “misleading†enterprises.
Some business representatives have called for the state to introduce fiscal and taxation policies and supporting measures to encourage the development of chlorinated titanium dioxide. At this stage, it is hoped that the customs tariff number of “chlorinated titanium dioxide†will be listed separately, and the export tax rebate of chlorinated titanium dioxide will be given to support the development of chlorinated titanium dioxide with real gold and silver.