METHOD OF REMOVING IRON FROM AQUEOUS SOLUTIONS

METHOD OF REMOVING IRON FROM AQUEOUS SOLUTIONS

FIELD: aqueous media treatment. ^ SUBSTANCE: invention relates to cleaning solution from sediment-forming compounds, chiefly iron compounds, and can be used to clean any aqueous solutions, preferably bischofite brine. Method comprises treatment of solution with oxygen-containing oxidants, e.g. air o...

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Hauptverfasser: GRITSISHIN ALEKSANDR MIKHAJLOVICH, SALEKH AKHMED IBRAGIM SHAKER
Format: Patent
Sprache:eng ; rus
Schlagworte:
CHEMISTRY
METALLURGY
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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creator GRITSISHIN ALEKSANDR MIKHAJLOVICH
SALEKH AKHMED IBRAGIM SHAKER
description FIELD: aqueous media treatment. ^ SUBSTANCE: invention relates to cleaning solution from sediment-forming compounds, chiefly iron compounds, and can be used to clean any aqueous solutions, preferably bischofite brine. Method comprises treatment of solution with oxygen-containing oxidants, e.g. air oxygen, while, as oxidants, additionally active oxygen and alkaline and/or alkali-earth metal chromates are used. Air, when used, is heated to temperature above +25°C and active oxygen is used cold. Temperature of solution ranges from freezing point to +25°C. Chromates are used simultaneously with one of oxidants in amount no larger than 0.005 wt % based on chromic anhydride ion CrO4 -2 at pH of solution below 7. ^ EFFECT: ensured high quality of cleaning at simplified technology and lower expenses. ^ 1 tbl
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subjects CHEMISTRY
METALLURGY
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
title METHOD OF REMOVING IRON FROM AQUEOUS SOLUTIONS
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