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2 427 416

(13)

(51)

IPC

B01F1/00(2006-01-01)

C01D3/06(2006-01-01)

C01F5/30(2006-01-01)

G05D11/00(2006-01-01)

(21) (22)

Application

2009115349/05, 2009-04-22

(24)

Start date

2009-04-22

(22)

Actual filing date

2009-04-22

(45)

Published

2011-08-27

(72)

Inventor

Safrygin Jurij StepanovichOsipova Galina VladimirovnaBuksha Jurij VladimirovichTimofeev Vladimir Ivanovich

(73)

Holder

Zakrytoe Aktsionernoe Obshchestvo Vnii Galurgii Vnii Galurgii)

METHOD OF CONTROLLING SALT SOLUTION DISSOLUTION Russian patent published in 2011 - IPC B01F1/00 C01D3/06 C01F5/30 G05D11/00

Abstract RU 2427416 C2

FIELD: process engineering.

SUBSTANCE: invention relates to production of synthetic carnallite. Proposed method comprises stabilising dissolution temperature, stabilising useful component concentration in varying stock consumption and determining useful component in flows entering the process. In varying said consumption relative to preset magnitude, useful component consumption is adjusted. Useful component comprises, apart from potassium chloride, magnesium chloride. Its concentration on feed stock flow is stabilised by evaporation of magnesium chloride initial solution. Additionally, content of magnesium chloride in evaporated solution is measured to calculate flow rate of evaporated solution by the following expression: where is flow rate of evaporated magnesium chloride solution, t; G_KCl is potassium chloride flow rate per 100% of the product, t; is specified content of MgCl₂ in evaporated solution, 35±0.5 %. Calculated magnitude is loaded in solution consumption control system as a setting point.

EFFECT: higher accuracy of control.

2 ex

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RU 2 427 416 C2

Authors

Safrygin Jurij Stepanovich

Osipova Galina Vladimirovna

Buksha Jurij Vladimirovich

Timofeev Vladimir Ivanovich

Dates

2011-08-27—Published

2009-04-22—Filed