METHOD TO CONTROL SILVINITE ORE DISSOLUTION Russian patent published in 2010 - IPC B01F1/00 C01D3/08 G05D27/00 

FIELD: process engineering.

SUBSTANCE: invention can be used in production of potassium chloride. Proposed method comprises control over ore feed subject to content of useful component in inlet flows, measurement of ready solution temperature, density, temperature and consumption of dissolving solution. Additionally, content of potassium chloride in ready solution is measured after its defecation, as well as its consumption. Obtained data and temperature are used to determine roe feed to correct its main flow in compliance with the following relation, and calculated magnitudes are entered in proportioner control system: where ±ΔG_ore is ore consumption that corrects its main flow, t, symbol ± indicates a necessity to increase or decrease primary consumption of silvinite ore consumption; G_{read sol} is consumption of clarified solution, t; C_{KCIread sol} is content of potassium chloride in clarified solution, %; C_KCIore is content of potassium chloride in silvinite ore, %; α_{KCIread sol} is saturation of clarified solution with respect to potassium chloride.

EFFECT: higher accuracy of control over silvinite ore dissolution.

1 tbl, 2 ex