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It is understood that the old agricultural potassium sulphate product industry standards that were implemented in 1996 are based on the products produced by the mainstream Mannheim calcination method in foreign countries. It stipulates that the moisture content of excellent products must be strictly controlled at 0.5%. However, for the potassium sulphate enterprises that have rapidly developed domestically using the salt lake brine method and the Glauber's salt and salt water salt production system in recent years, the water content index is too harsh, which is not only not conducive to the improvement of product quality, but also causes great energy consumption. increase. In recent years, potassium sulphate companies have been calling for the use of agricultural potassium sulphate to produce compound fertilizers that need to be hydrated. Therefore, the moisture content index of agricultural potassium sulphate is relaxed to an appropriate level, and it has no effect on product quality and agricultural use. However, it is of great significance for energy conservation and consumption reduction and promotion of the national potassium sulfate industry. According to the requirements of many companies in the industry, after two years of efforts by the China Salt Society of Potash Branch, the National Standards Committee finally approved the introduction of new national standards for agricultural potassium sulfate. According to the new national standard, the water content of agricultural potassium sulfate in the water and salt system process method is relaxed from 0.5% to 2%. The product specifications of other non-water salt system process methods remain unchanged.
The president of the inorganic salt association of the China Salt Society, Wei Chengguang, told reporters that this is the first domestic chemical product standard to issue a wide moisture content from the concept of energy conservation. At present, the annual output of potassium sulfate in China is more than 600,000 tons. If the new national standard is implemented, the domestic potassium sulfate industry can save more than 60 million yuan in energy costs in a year. He also said that according to the current trend of potash fertilizer demand in China, by 2010, the annual demand for potash fertilizer in China is about 9 million tons. Therefore, the country regards the development of Xinjiang's potash industry as a "hope project" to reduce the import of potash fertilizer in China. The annual production of 1.2 million tons of salt lake brine potassium sulfate project in Lop Nur is under construction and is expected to be completed and put into production in 2009. The implementation of the new national standard not only paved the way for the smooth production of this project, but also has a huge energy-saving effect.
The reporter learned from the Potassium Salt Branch of the China Inorganic Salt Association yesterday that under the efforts of the association, China's first national standard for chemical products adjusted from the concept of energy conservation, the new standard for agricultural potassium sulfate, was recently approved by the National Standardization Committee. Implementation. The new national standard has relaxed the moisture content of products without affecting the use of agriculture. With only this change, the entire industry can save more than 60 million yuan in energy costs each year.
October 20, 2024