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二段脱硅
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  two-stage desilication
     Alumina output produced by sintering process in Zhongzhou Branch of Chalco is 900,000 tons per year, in which 72.5% of pregnant liquor are obtained by two-stage desilication method. The first stage is called as high-pressure desilication (direct and indirect heating); the second stage is run by directly adding lime milk into sodium aluminate solutions after removed sodium-silicon residue.
     中州分公司烧结法系统年产氧化铝90万吨,其中72.5%的精液采用二段脱硅生产:第一段为加压脱硅(直接加热和间接加热),第二段为钠硅渣分离后的铝酸钠溶液直接加石灰乳脱硅。
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  “二段脱硅”译为未确定词的双语例句
     Synthesizing of HCAC and Deep Desilication in High Concentration of Aluminate Solution
     水合碳铝酸钙的合成及高浓度铝酸钠溶液二段脱硅的研究
短句来源
     HCAC was applied as seed for deep desilication in high concentration of aluminate solution.
     在高浓度氧化铝溶液二段脱硅中,使用HCAC(水合碳铝酸钙)作为晶种,研究反应时间、HCAC用量、氧化钙烧制温度、碳酸钠用量对脱硅效果的影响.
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  相似匹配句对
     二.
     .
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     Two.
     .
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     PROCESS PROCEDURE FOR THE BAKING OF SECONDARY REFORMER
     转化炉烘炉工艺过程
短句来源
     COMPREHENSIVE UTILIZATION OF TWO\|STAGE PURIFIED RESIDUE
     净化渣综合利用
短句来源
     KINETICS OF HOT METAL DESILICONIZATION
     铁水脱硅动力学研究
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This paper was start from energy saving and lower consumption, explaining crude liquor desiliconisation developing process for sinter process, from steam directed heating to steam indirected heating continuious desiliconisation. Based on several time testing, crude liquor desiliconisation developing method put forward. The first suction was desiliconisation in common pressure, after separated sodium and silica sludge, the second suction was applied addition agent HCAC, it can change high energy consumption,...

This paper was start from energy saving and lower consumption, explaining crude liquor desiliconisation developing process for sinter process, from steam directed heating to steam indirected heating continuious desiliconisation. Based on several time testing, crude liquor desiliconisation developing method put forward. The first suction was desiliconisation in common pressure, after separated sodium and silica sludge, the second suction was applied addition agent HCAC, it can change high energy consumption, decresing Al2O3 loss.

 本文以节能降耗为出发点,阐述了烧结法粗液脱硅工艺的发展过程,从蒸汽直接加热连续脱硅到蒸汽间接加热连续脱硅,通过多方面的试验探索及验证,提出了烧结法粗液脱硅的改进方法:一段脱硅运用常压脱硅技术、钠硅渣彻底分离后二段脱硅使用HCAC添加剂等,可以从根本上改变高能耗的脱硅现状,在提高精液A/S的前提下,尽可能降低Al2O3的损失。

HCAC was applied as seed for deep desilication in high concentration of aluminate solution. The time of reaction, quantity of HCAC, sintering temperature of CaO and amount of Na_2CO_3were studied on results of two-stage desilication. The best condition of HCAC preparation was obtained that HCAC was made by 1.5 g CaO sintered at 600 ℃ plus 2.5 g Na_2CO_3. The best conditions of desilication in 200 mL sodium SiO_2-containing aluminate solutions were that quantity of HCAC is 7.0 g, the time of desilication is 2...

HCAC was applied as seed for deep desilication in high concentration of aluminate solution. The time of reaction, quantity of HCAC, sintering temperature of CaO and amount of Na_2CO_3were studied on results of two-stage desilication. The best condition of HCAC preparation was obtained that HCAC was made by 1.5 g CaO sintered at 600 ℃ plus 2.5 g Na_2CO_3. The best conditions of desilication in 200 mL sodium SiO_2-containing aluminate solutions were that quantity of HCAC is 7.0 g, the time of desilication is 2 h. Results of desilication are better and basic requirement of experiment will be satisfied

 在高浓度氧化铝溶液二段脱硅中,使用HCAC(水合碳铝酸钙)作为晶种,研究反应时间、HCAC用量、氧化钙烧制温度、碳酸钠用量对脱硅效果的影响.高浓度铝硅酸钠溶液脱硅时,HCAC的最佳合成条件:用600℃烧制的1.5gCaO与2.5g碳酸钠反应制备HCAC;最佳脱硅条件:在200mL含硅铝钠溶液中HCAC加入量为7.0g,脱硅时间为2h,脱硅效果较好,硅量指数可达1000以上,基本上可以满足氧化铝生产实践要求.

 
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