The largest domestic natural alkali processing project started

On June 5th, China's largest trona comprehensive processing project - Henan Tongbai 1.5 million tons of soda ash, sodium bicarbonate (baking soda) project started construction. The project incorporates 14 patented technologies into one, and realizes zero discharge of sewage for the first time in the Chinese soda industry. After the project is put into production, the annual production capacity of alkali in Tongbai area will be nearly 3 million tons, and it will become one of the world's natural alkaloid alkalis.

According to briefings, at present, there are only a few countries such as the United States and France that discovered the world's natural mineral mines. American FMI Corporation is the world’s largest and most advanced natural alkaloid production company with annual production of 3.1 million tons. Tongbai County of Henan Province has the reputation of “the capital of China's natural alkali”. The proven reserves of the two major deposits in Anpeng and Wucheng have reached 150 million tons and the long-term reserves are 300 to 500 million tons, ranking first in Asia. Second in the world, the ore value exceeds 200 billion yuan. The chemical products produced from natural alkaloids can provide adequate basic raw materials and greater profitability for the development of related industries. The development of the natural alkaloid industry can directly stimulate the development of related industries, achieving an annual indirect efficiency increase of more than 3 billion yuan. Relying on the strong advantages of natural alkali resources in China, Tongbai County has been advancing the development of the natural alkaloid industry since 1997, and its annual production capacity has gradually approached 1.5 million tons. China has initially built a natural alkaloid recycling economic base and an ecological base.

At present, the annual output of soda ash in China is more than 15 million tons, of which more than 90% are synthetic alkali produced by ammonia-alkali method and alkali method. Tongbai County's trona comprehensive processing project adopts the world's leading sesquisane process liquid phase water chemistry, one-water method, carbonization and other production processes, as well as deep fracturing connectivity and solution mining and other 14 international patented technologies. At the same time, the corrosive causticizing process in the original process was eliminated, and no lime was used in the production process, and no caustic sludge was discharged. The closed loop recycling of wastewater has achieved zero emissions and achieved a historic breakthrough in the processing technology of China's soda industry. After the project is put into production, the annual production capacity of the soda alkali produced by Tongbai will reach 3 million tons, which is equivalent to that of the FMI company in the United States. The project also plans to achieve an annual production scale of 5 million tons in the future.

It is understood that the project produces heavy soda ash. At present, the heavy soda ash produced in developed countries is more than 80% of the total soda ash production, while China's heavy soda ash has only 33% of total production. At the end of the “Eleventh Five-Year Plan” period, the proportion of heavy soda ash in China should reach 60%. After the natural alkali processing project in Tongbai area is put into production, it will have a positive impact on the adjustment of the product structure of the soda ash industry.

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