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米国民  涂文懋 《非金属矿》1994,(3):43-45,13
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   
2.
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   
3.
电化学电容器电极材料研究现状   总被引:2,自引:2,他引:0  
综述了当前就提高电化学电容器能量密度所取得的研究进展。并针对电极材料的不同改性方法及涌现出的新材料,详细介绍了各种电化学电容器的电化学性能。指出了电化学电容器在发展中面临的问题,并对其应用前景进行了展望。  相似文献   
4.
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   
5.
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   
6.
一种制造可膨胀石墨新工艺的研究   总被引:6,自引:0,他引:6  
  相似文献   
7.
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   
8.
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  
米国民  刘奇 《炭素》1994,(4):17-21
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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