Ammonia supply system and method for preparing sodium carbonate

Ammonia supply system and method for preparing sodium carbonate

The invention provides an ammonia supply system for preparing sodium carbonate. The ammonia supply system comprises a heat exchange unit, a distillation unit, an ammonium chloride preparation unit anda calcium hydroxide preparation unit; the ammonium chloride preparation unit comprises an ammonium c...

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Hauptverfasser: CAO ZHENGWEI, FENG WEIDONG, HUANG YUANBAO, HUANG QINGTAO, LIANG ERXI, LIANG MING
Format: Patent
Sprache:chi ; eng
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CHEMISTRY
COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM,RUBIDIUM, CAESIUM, OR FRANCIUM
INORGANIC CHEMISTRY
METALLURGY
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creator CAO ZHENGWEI
FENG WEIDONG
HUANG YUANBAO
HUANG QINGTAO
LIANG ERXI
LIANG MING
description The invention provides an ammonia supply system for preparing sodium carbonate. The ammonia supply system comprises a heat exchange unit, a distillation unit, an ammonium chloride preparation unit anda calcium hydroxide preparation unit; the ammonium chloride preparation unit comprises an ammonium chloride dissolving tank, a cyclone separator and a tail gas washing tower; the distillation unit comprises a distillation tower, a reaction barrel and a flash evaporator, the distillation tower is provided with an ammonia outlet, and a raw material inlet of the distillation tower is communicated with the ammonium chloride dissolving tank through a pipeline; the heat exchange unit comprises a heat exchanger, the heat exchanger is provided with a refrigerant inlet, a heating medium inlet, a refrigerant outlet and a heating medium outlet, the heating medium inlet of the heat exchanger is communicated with the flash evaporator through a pipeline, and the refrigerant outlet of the heat exchangeris communicated with the
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subjects CHEMISTRY
COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM,RUBIDIUM, CAESIUM, OR FRANCIUM
INORGANIC CHEMISTRY
METALLURGY
title Ammonia supply system and method for preparing sodium carbonate
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