On 23th February 2012, the project “Improvement and optimization of magnesium potassium sulfate fertilizer production with an annual output of 150,000 tons at Qinghai Yu-Lian Potash Fertilizer Limited Company of CITIC GUOAN” has been successfully passed its final acceptance by expert committees of QingHai Science and technology Department and Its technology reached the domestic advanced level.  Which project was cooperated by ISL and the Qinghai CITIC Guoan Yu Potash Co., Ltd.

The project based onthepatented technologyoftheQinghaiInstitute of Salt Lakes,potassiumsulfateorepreparation ofpotassium magnesium through the technology of the decomposition and transformation, flotationseparation at room temperature to transform the process heating conversionscreeningprocessto removethesodiumproduction ofpotassium sulfatemagnesium fertilizer. By technological innovation, the processgets a betteroptimized and achievesthe designproduction capacity ofpotassium magnesium.

After the assessment of the production operation, potassium magnesium fertilizer flotation agent adaptability, good selectivity, high yield, the reagent system is reasonable. The potassium yield from 30-35% of the original process improves to the present 66-68%. Energy consumption decreases by 40% and water consumption reduces 45-55%. The production of 1 tons of product cost reduces 300 yuan of above and the product quality meets the national standard GB/T20937-2007.