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high specific area active carbon
相关语句
  高比表面积活性炭
     High sulphur occurring coal is chosen as the raw material for producing high specific area active carbon in a process of combination of oxidation with KNO 3 and activation with KOH.
     以高硫、低阶煤为原料 ,采用硝酸钾预氧化后加 KOH化学活化的工艺制备高比表面积活性炭 .
短句来源
     In as far as preparing high specific area active carbon,the fitting pretreatment condition listed as follows:to thermal polymerization pretreatment process,constant temperature 4 h-6 h under 450 ℃,volatile matter content is about 16.7%-26.4%;
     根据变化规律 ,可从中找出制备高比表面积活性炭适宜的工艺条件 :对热聚合方法预处理条件为 45 0℃恒温 4h~ 6h,挥发分 1 6.7%~ 2 6.4% .
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  相似匹配句对
     Specific as:
     具体为:
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     High signal and specific probes were selected.
     采取差异选择法 ,筛选强杂交信号和高特异性的分型探针。
短句来源
     Conclusions: There were high specific in the test of ciguatoxin.
     结论:雪卡毒素检测具高度特异性。
短句来源
     (3) high BET specific surface areas;
     (3) 比表面积大;
短句来源
     Preparation of High Specific Activity Barium Carbonate
     高比活度碳[~(14)C]酸钡的研制
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High sulphur occurring coal is chosen as the raw material for producing high specific area active carbon in a process of combination of oxidation with KNO 3 and activation with KOH. It has been shown that we can get the active carbon with capability of adsorption for phenol as high as 280.07 mg/g and specific area around 2 579.79 m 2/g as conditions for carbonized material preparation are as follow:ratio of KOH to carbon of 2.5 to 1 activated temperature at 850 ℃ and...

High sulphur occurring coal is chosen as the raw material for producing high specific area active carbon in a process of combination of oxidation with KNO 3 and activation with KOH. It has been shown that we can get the active carbon with capability of adsorption for phenol as high as 280.07 mg/g and specific area around 2 579.79 m 2/g as conditions for carbonized material preparation are as follow:ratio of KOH to carbon of 2.5 to 1 activated temperature at 850 ℃ and activation time of 1.5 h as well. Moreover, the activate carbon was characterized.

以高硫、低阶煤为原料 ,采用硝酸钾预氧化后加 KOH化学活化的工艺制备高比表面积活性炭 .结果表明 ,在碱炭比为 2 .5∶ 1 ,活化温度为 85 0℃ ,活化时间为 1 .5 h的工艺条件下可以制备出比表面积为 2 5 79.76m2 /g,苯酚吸附容量高达 2 80 .0 7mg/g的活性碳 ,最后对该活性炭产品进行了初步表征

Coal pitch is a kind of thermoplastic carbon material.It need be treated into thawless and infusible material before be prepared into active carbon because of low softening point.Thermal polymerization and air blowing were carried to pretreat coal pitch in this experiment,we can find that it has great influence of pretreatment on composition,structure and properties of precursor,even influence on specific surface area and pore structure of active carbon.In as far as preparing high specific area active carbon,the...

Coal pitch is a kind of thermoplastic carbon material.It need be treated into thawless and infusible material before be prepared into active carbon because of low softening point.Thermal polymerization and air blowing were carried to pretreat coal pitch in this experiment,we can find that it has great influence of pretreatment on composition,structure and properties of precursor,even influence on specific surface area and pore structure of active carbon.In as far as preparing high specific area active carbon,the fitting pretreatment condition listed as follows:to thermal polymerization pretreatment process,constant temperature 4 h-6 h under 450 ℃,volatile matter content is about 16.7%-26.4%;to air blowing pretreatment process,high heating rate is about 2 ℃/min-3 ℃/min before 420 ℃,volatile matter content is about 20.2%-22.7%.Then by carbonization and activation with KOH under the same condition,specific surface area of the former is about 1 100 m 2/g-1 300 m 2/g,while the latter is about 1 400 m 2/g-1 550 m 2/g.Thus,it can provide a gist for the further research of preparing active carbon from coal pitch.

煤沥青属热塑性高含碳材料 ,因其软化点低 ,制备活性炭前需要进行不溶不熔处理 .实验采用热聚合与空气氧化聚合两种工艺分别对沥青进行预处理 ,发现原料预处理工艺对所制备前驱体的组成、结构和性能影响很大 ,由此导致制备的活性炭比表面积与孔结构同样存在显著差异 .根据变化规律 ,可从中找出制备高比表面积活性炭适宜的工艺条件 :对热聚合方法预处理条件为 45 0℃恒温 4h~ 6h,挥发分 1 6.7%~ 2 6.4% .对氧化聚合方法预处理条件为 :42 0℃前升温速度为 2℃ /min~ 3℃ /min,挥发分 2 0 .2 %~ 2 2 .7% .在同样条件下分别采用 KOH炭化、活化 ,其比表面积前者为 :1 1 0 0 m2 /g~ 1 30 0 m2 /g,后者为 :1 40 0 m2 /g~ 1 5 5 0 m2 /g.以此为煤沥青制备高比表面积活性炭进一步研究提供了依据

 
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