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Titanium Dioxide Titanium Dioxide Cogeneration Clean Production New Process Opens Up Industrial Innovation Road

February 23, 2022

The new clean production process of titanium ammonium titanium co-production titanium dioxide produced by Shandong Dongjia Group Co., Ltd. in Beijing passed the scientific and technological achievements appraisal hosted by the China Petroleum and Chemical Industry Federation and the Chinese Society of Pigment And Dye Environmental Sciences. This achievement with the international advanced level in the industry has opened up a new road for the traditional sulfuric acid titanium dioxide industry in China to solve the environmental predicament and realize industrial upgrading. It is understood that before the appraisal meeting was held, the Sinopec Federation and the China Environmental Society had organized experts to go to Shandong Dongjia Group Co., Ltd. in early June to carry out the industrialized production of the clean production process of titanium dioxide and titanium dioxide cogeneration method. An on-site assessment was conducted and an assessment data report was submitted for the appraisal meeting.



An appraisal team of experts from the Chinese Academy of Engineering Zhang Jian and Academician Duan Ning judged that the new technology for the clean production of titanium white titanium co-production process titanium dioxide is mature, with obvious effects of energy saving, consumption reduction, and emission reduction, Titanium Dioxide Powder and the quality of titanium dioxide products. Mineral consumption, comprehensive energy consumption, and water consumption all reached the international advanced level in the industry. The high-quality rutile titanium dioxide produced by this process has some quality indicators that are superior to those produced by the chlorination process. It has unique advantages in terms of comprehensive utilization of resources, energy conservation, and emission reduction, and it has the potential to promote industrial upgrading and structural adjustment of titanium dioxide in China. Important demonstration role and promotion value.



According to reports, the results achieved four major breakthroughs: First, the use of ultrafiltration, nanofiltration, reverse osmosis technology on the titanium dioxide acidic wastewater advanced treatment, contaminated the impurities of the membrane blockage problems, to reach the new unit of titanium dioxide water consumption Less than 50 tons, the world's leading level of sewage per unit displacement of 20 tons or less; Second, the use of imported acid high titanium slag and ilmenite mixed raw materials difficult to use, reduced 60% of waste residue emissions; Third, to achieve a continuous acid hydrolysis With the industrialization of technology, the acidolysis rate of titanium ore is increased to over 96%, the utilization rate of titanium resources is increased from about 79% of the conventional process to over 87%, and the fourth is that 20% of waste sulfuric acid is not concentrated, Titanium Dioxide Anatase instead of 98% of Boric Acid Flakes commercial sulfuric acid production. Ammonium sulphate products use waste-to-energy methods to turn waste into resources Melamine Powder and achieve product chain coupling in a circular economy.



Experts at the meeting pointed out that due to technical constraints, domestic titanium resources, quality restrictions, market demand and many other factors, the current domestic sulfuric acid method titanium dioxide can not be completely eliminated. The use of the existing sulfuric acid process titanium dioxide industry foundation, to carry out clean production technology innovation, is the primary task of the Chinese titanium dioxide industry. Therefore, the successful development of this technology is of great significance in solving the environmental and development problems faced by the sulfuric acid titanium dioxide industry in China.





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