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Electrochemical Recycling of Still Waste Liquid in Ammonia Soda Production
Abstract:
This scientific paper deals with the waste recycling process of soda ash production which comprised processing the still waste liquid with obtaining calcium hydroxide, sodium hydroxide and hydrochloric acid. Still waste liquid was treated with sodium hydroxide to transform calcium as fully as possible into insoluble form of calcium hydroxide. After detachment of precipitate, the filtrate consisting mainly of sodium chloride was treated by a three-compartment membrane cell. Authors have examined the main regularities of still waste liquid recycling on the basis of the specified method. It has been shown that the process can be organized without the use of chemicals.
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342-346
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Online since:
July 2017
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© 2017 Trans Tech Publications Ltd. All Rights Reserved
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