钙还原
- 【冶】calcium reduction
![钙还原](../cache/1407586.jpg)
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二元铁酸钙还原行为的研究
Research of reduction behavior of binary calcium ferrite
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首先采用钙热还原法制备稀土粗金属(Dy、Y)。
Firstly , crude rare-earth metals ( Dysprosium , Yttrium ) are prepared by reduction reaction with Calcium reducing agent .
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采用Fe-Ni复合催化剂,在温度650℃条件下即可将烟气脱硫石膏催化还原为硫化钙,还原率达95%以上。
The catalytic reduction of flue gas desulfurization ( FGD ) gypsum to calcium sulfide over Ni Fe composite catalyst was investigated . An optimum conversion rate of more than 95 % was obtained at 650 ℃ .
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真空钙热还原炉渣的综合利用研究
Study on Comprehensive Utilization of Slag from Vacuum Calcium Thermal Reduction
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研究了从真空钙热还原炉渣中回收稀土的工艺条件;
The technology of recovering RE from slag of vacuum calcium thermal reduction is studied .
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钒酸钙的还原及直接合金化
Direct alloying with calcium vanadate
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结果表明,以液态钙为还原剂的还原工艺是可行的。
The analytic results have shown that the new magnesium reduction process deoxidizing by liquid calcium is feasible .
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钙热还原及熔盐萃取联合法一次性制备低氧低氟金属镝
One Time to Produce Low Oxygen and Low Fluorine Dysprosium Metal by the Combining Method of Calcium Reducing Agent and Fused-Salt Extraction
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副产品氟化钙用作炼硅铁合金的助熔剂,使钙热还原炉渣得到综合利用。
The resultant by-product calcium fluoride can be used as additional agent in Si-Fe alloy metallurgy that makes slag recycled more completely .
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介绍了用氟化钪钙热还原得到的粗金属钪为原料,通过真空蒸馏净化制取纯金属钪的工艺过程及其技术参数。
The technics of purifying Sc metal in vacuum distilling with coarse Sc metal which is made by ScF3deoxidized by Ca at heated condition .
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碳含量降低,锰活度将增加,不利于氧化脱磷和保锰。碳含量高将抑制钙的还原脱磷作用。
The manganese activity increases with decreasing carbon content of the liquid , and has a defective action on the oxidative dephosphorization and the manganese conservation , but an effective action on the reductive dephosphorization by calcium .
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甲烷和固态硫酸钙的热化学还原反应模拟实验初步研究
Simulation experiments on thermochemical sulfate reduction of methane with solid calcium sulfate
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木钙中所含还原糖单糖组分主要是葡萄糖、甘露糖、木糖、阿拉伯糖和半乳糖。
The main monosaccharide components of reducing sugar in CL are glucose , mannose , xylose , arabinose and galactose .
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结果表明,甲烷和固态硫酸钙能够发生热化学还原反应,生成硫化氢、碳酸钙和水。
According to the results , hydrogen sulfide , calcium carbonate and water are the main products during the reaction .
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抗氧化研究结果表明,在一定的体积范围内,氨基酸螯合钙浓缩液的还原力随着其体积的增大而增大。
The antioxidant evaluation indicated that the condensed amino acid chelated calcium solution obtained had reducing power in a positive volume-dependent fashion in a proper range .