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WANG Tiangui; LI Zuohu
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王天贵; 李佐虎
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Abstract: The purpose of this work is to find a new way for utilizing the rich sodium sulfate resource to produce soda ash. A novel process is proposed which usesaqueous dichromate solution as working medium through decomposition of calcium carbonate in aqueous sodium dichromate, complex decomposition of aqueoussodium sulfate and calcium chromate, regeneration of sodium dichromate and production of sodium bicarbonate from carbonation of aqueous sodium chromatesolution, processing and utilization of byproduct calcium sulfate, and production of sodium carbonate from sodium bicarbonate. The process has the features of less corrosion and pollution and low energy consumption.
Key words: sodium sulfate, calcium carbonate, sodium carbonate, soda ash, sodium dichromate, calcium sulfate
摘要: The purpose of this work is to find a new way for utilizing the rich sodium sulfate resource to produce soda ash. A novel process is proposed which usesaqueous dichromate solution as working medium through decomposition of calcium carbonate in aqueous sodium dichromate, complex decomposition of aqueoussodium sulfate and calcium chromate, regeneration of sodium dichromate and production of sodium bicarbonate from carbonation of aqueous sodium chromatesolution, processing and utilization of byproduct calcium sulfate, and production of sodium carbonate from sodium bicarbonate. The process has the features of less corrosion and pollution and low energy consumption.
关键词: 硫酸钠;碳酸钙;碳酸钠;苏打;重铬酸钠;硫酸钙;碳酸盐
WANG Tiangui, LI Zuohu. Preliminary Study on a Novel Process for Manufacturing Soda Ash from Sodium Sulfate[J]. .
王天贵,李佐虎. 一种新的芒硝制碱法实验室研究[J]. CIESC Journal.
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https://hgxb.cip.com.cn/EN/Y2004/V12/I3/433