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Abstract: The oxidizability-resistance of graphite products havebeen studied with the addition of H_3PO_4 and H_3BO_3. A available way hasbeen found to increase the oxidizability-resistance of graphite products.The oxidizability-resistance of graphite products rises remarkably aftertreating with 1% H_3PO_4 and 3% H_3BO_3. Meanwhile, the relative princi-ple has been proposed also. 相似文献
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本文用H3PO4和H3BO3对石墨制品的抗氧化性能进行了实验研究。发现了提高石墨制品抗氧化性有有效途径。并探讨了其抗氧化处理。 相似文献
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This paper deals with the flotation separation of wollas-tonite from quartz by using Na-oleate as a collector and metallic ion as anactivator. The reasons why wollastonite is difficult to separate from quartzusing Na-oleate as a collector have been studied. It is found that quartzdoes not float well in a mixture of wollastonite and quartz because of thesolution chemistry effect in a wollastonite suspension. The compositions ofthe wollastonite suspensions have been studied, and the (?)-potential of thetwo minerals have been determined to explain the solution chemistry effectson the flotation of the respective minerals. 相似文献
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鳞片石墨选矿工艺的进展 总被引:1,自引:0,他引:1
本文评述了传统石墨选矿中存在的不足,着重研究了石墨鳞片的破损行为,提出了新了石墨选矿原则工艺流程,并推荐了与之相适应的新设备。 相似文献
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Abstract: The paper deals with a new method to synthesize expand-able graphite with H_2O_2 as oxidizer. This method causes less environ -mental pollution than the tradi—tional,method using HNO_3 Some opti-mum techmcal conditions have been given here. It is shown that traditionalmethod .for manufacturing expandable graphite with HNO_3 as oxidizer canbe replaced completely with H_2O_2 as an oxidizer. Expandable graphitemade in this way has the same characteristics as that made in traditionalway, but the pollution of NO_2 to air decreases greatly. 相似文献
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H2SO4石墨层间化合物稳定性分析研究 总被引:3,自引:0,他引:3
本文用日本理学转靶X射线分析仪D/MAX/B首次制定了H2SO4-石墨层间化合物在各种条件下的X射线衍射图谱,根据各X射线衍射图,对H2SO4-GIC的阶结构进行了详尽的分析,探讨了环境对H2SO4-GIC隐定性的影响。在测试过程中采用特殊的样品制备方法,保证了H2SO4-GIC衍射图谱的客观性. 相似文献
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