Comprehensive soda ash producing process and product application thereof
A technology of process and process steps, which is applied in the field of comprehensive soda production process and its product application, can solve the problems of low carbon dioxide purity, high energy consumption of synthetic ammonia plant, large environmental pollution, etc. The effect of high utilization
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Embodiment 1
[0058] Such as figure 1 Shown, comprehensive soda making process of the present invention may further comprise the steps:
[0059] Step A, in the saturated sodium chloride (NaCl) solution, feed the purchased ammonia (NH 3 ) to produce ammonia brine;
[0060] Step B, calcined limestone (CaCO 3 ) to produce carbon dioxide (CO 2 ) and solid calcium oxide (CaO), will produce carbon dioxide (CO 2 ) into the above-mentioned ammonia brine to generate solid sodium bicarbonate (NaHCO 3 ), a mixture of sodium chloride (NaCl) solution and ammonium chloride (NH4Cl) solution;
[0061] Step C, the mixture in step B is filtered to obtain solid sodium bicarbonate (NaHCO 3 ), and ammonium chloride (NH 4 Cl) and sodium chloride (NaCl) mixed filtrate;
[0062] Step D, calcined solid sodium bicarbonate (NaHCO 3 ) to generate soda ash (Na 2 CO 3 ) products and carbon dioxide (CO 2 ), and then the generated carbon dioxide (CO 2 ) is recovered and introduced to ammonia brine for recycli...
Embodiment 2
[0079] Such as figure 2 Shown, comprehensive soda making process of the present invention may further comprise the steps:
[0080] Step A, in the saturated sodium chloride (NaCl) solution, feed the purchased ammonia (NH 3 ) to produce ammonia brine;
[0081] Step B, calcined limestone (CaCO 3 ) to produce carbon dioxide (CO 2 ) and solid calcium oxide (CaO), will produce carbon dioxide (CO 2 ) into the above-mentioned ammonia brine to generate solid sodium bicarbonate (NaHCO 3 ), a mixture of sodium chloride (NaCl) solution and ammonium chloride (NH4Cl) solution;
[0082] Step C, the mixture in step B is filtered to obtain solid sodium bicarbonate (NaHCO 3 ), and ammonium chloride (NH 4 Cl) and sodium chloride (NaCl) mixed filtrate;
[0083] Step D, calcined solid sodium bicarbonate (NaHCO 3 ) to generate soda ash (Na 2 CO 3 ) products and carbon dioxide (CO 2 ), and then the generated carbon dioxide (CO 2 ) is recovered and introduced to ammonia brine for recycl...
Embodiment 3
[0095] Such as figure 1 Shown, comprehensive soda making process of the present invention may further comprise the steps:
[0096] Step A, in the saturated sodium chloride (NaCl) solution, feed the purchased ammonia (NH 3 ) to produce ammonia brine;
[0097] Step B, calcined limestone (CaCO 3 ) to produce carbon dioxide (CO 2 ) and solid calcium oxide (CaO), will produce carbon dioxide (CO 2 ) into the above-mentioned ammonia brine to generate solid sodium bicarbonate (NaHCO 3 ), a mixture of sodium chloride (NaCl) solution and ammonium chloride (NH4Cl) solution;
[0098] Step C, the mixture in step B is filtered to obtain solid sodium bicarbonate (NaHCO 3 ), and ammonium chloride (NH 4 Cl) and sodium chloride (NaCl) mixed filtrate;
[0099] Step D, calcined solid sodium bicarbonate (NaHCO 3 ) to generate soda ash (Na 2 CO 3 ) products and carbon dioxide (CO 2 ), and then the generated carbon dioxide (CO 2 ) is recovered and introduced to ammonia brine for recycli...
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