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用磷酸活化褐煤制备活性炭 被引量:4

Activated carbon prepared with phosphoric acid activated lignite
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摘要 用磷酸浸渍一步炭活化法对云南先锋褐煤制活性炭进行了研究,结果表明,磷酸加热浸渍对褐煤有较强的活化能力,在浸渍磷酸水溶液中添加硫酸能使产品活性炭的碘吸附值增加45%,但也会使碳损失增加5%~8%。用浓度为40%~60%的磷酸和9%褐煤质量的硫酸添加剂溶液,在80℃浸渍14h,400~430℃炭活化2min即可使褐煤完全活化,得到的活性炭碘吸附值大于800mg/g,产率高于45%。
出处 《煤炭科学技术》 CAS 北大核心 2004年第11期55-58,共4页 Coal Science and Technology
基金 云南省教委重点基金资助项目(0033029)
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