Method for preparing calcium carbonate from yellow phosphorus furnace slag to co-produce industrial salt and silicon gel
A technology for yellow phosphorus slag and calcium carbonate is applied in the field of preparing calcium carbonate to co-produce industrial salt and silica gel, and achieves the effects of large market demand, low production cost and elimination of chemical waste residues
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Embodiment 1
[0042]A method for preparing calcium carbonate co-production industrial salt and silica gel by using yellow phosphorus slag, including the purification and synthesis process of yellow phosphorus slag and the process of synthesizing silica gel;
[0043] The process of purifying and synthesizing the yellow phosphorus slag is as follows: 300 kg of pure calcium oxide in the converted yellow phosphorus slag and hydrochloric acid solution are placed in the purifier 1 to react according to the mass ratio of pure substances of 1:1.1, and then the reaction After the material obtains clarified 501.78kg calcium chloride solution and silica filter cake through the first suction filter 2 suction filtration;
[0044] Wherein, the clarified calcium chloride solution and sodium carbonate are put into the synthesizer 3 according to the mass ratio of pure substances of 1:0.76, and the chemical reaction is carried out under gentle stirring, and then the reacted substance is filtered through the s...
Embodiment 2
[0047] A method for preparing calcium carbonate co-production industrial salt and silica gel by using yellow phosphorus slag, including the purification and synthesis process of yellow phosphorus slag and the process of synthesizing silica gel;
[0048] The process of purifying and synthesizing the yellow phosphorus slag is as follows: 300 kg of pure calcium oxide in the converted yellow phosphorus slag and hydrochloric acid solution are placed in the purifier 1 to react according to the mass ratio of pure substances of 1:1.3, and then the reaction After the material obtains clarified 593.01kg calcium chloride solution and silica filter cake through first suction filter 2 suction filtration;
[0049] Wherein, the clarified calcium chloride solution and sodium carbonate are put into the synthesizer 3 according to the mass ratio of pure substances of 1:0.96, and the chemical reaction is carried out under gentle stirring, and then the reacted substance is filtered through the seco...
Embodiment 3
[0052] A method for preparing calcium carbonate co-production industrial salt and silica gel by using yellow phosphorus slag, including the purification and synthesis process of yellow phosphorus slag and the process of synthesizing silica gel;
[0053] The process of purifying and synthesizing the yellow phosphorus slag is as follows: 300 kg of pure calcium oxide in the converted yellow phosphorus slag and hydrochloric acid solution are placed in the purifier 1 to react according to the mass ratio of pure substances of 1:1.5, and then the reaction After the material obtains clarified 648.25kg calcium chloride solution and silica filter cake through first suction filter 2 suction filtration;
[0054] Wherein, the clarified calcium chloride solution and sodium carbonate are put into the synthesizer 3 according to the mass ratio of pure substance 1: 1.16, carry out the chemical reaction under gentle stirring, and then the reacted substance is filtered through the second suction f...
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