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介绍了尾砂制备建筑新型轻质材料的国家政策、项目背景,详细叙述了稀土泡沫陶瓷的生产工艺及样品的制备过程。利用赣南稀土尾砂制备泡沫陶瓷,变废为宝,既符合国家固体废物利用的政策,又为陶瓷行业提供了丰富的原料。 相似文献
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本文主要论述了废弃陶瓷在陈设艺术陶瓷生产中的应用和研究。将废弃陶瓷作为陈设艺术陶瓷的生产原料(加入量为35%~45%),通过对原料配方的改进、原料的特殊工艺加工、增强泥料的可塑性和产品成形的适应性,采用颜色釉料对产品进行装饰,制备出高档次的陈设艺术陶瓷制品。 相似文献
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刘长 《中国轮胎资源综合利用》2008,(10):9-9
日前,国家环境保护部等相关部门开始编制2009年进口固体废物管理目录。
2008年1月公布的进口固体废物管理目录,包括《禁止进口固体废物目录》,《限制进口类可用作原料的固体废物目录》和《自动许可进口类可用作原料的固体废物目录》。 相似文献
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文章以形成源头及处理现状两个视角入手,概述工业固体废物。进一步探讨其在生产建筑材料上的运用,包括墙体、陶瓷与水泥三类。并根据国内当期运用现状,探讨工业固体废物再利用的未来展望。 相似文献
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针对渭南地区的陶瓷粘土原料、白云石、金属尾矿等当地原料进行实地勘察取样。对所取样品进行分析和研究,试制出建筑陶瓷墙地砖样品,并对产品性能作了测试。 相似文献
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陶瓷真空管壳常见废品分析 总被引:2,自引:0,他引:2
本文对等静压成型法生产的陶瓷真空管壳经常出现的废品进行了分类:结合生产实践,从原料、配方、成型、烧成、上釉等方面分析了废品产生的原因,提出了一些相应的改进措施。 相似文献
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《Journal of the European Ceramic Society》2007,27(5):2341-2345
The recycling of solid waste produced by the processing of natural raw materials and urban centres is one of the priorities of the European Community. As a means of reducing such waste, government agencies are encouraging the manufacture of alternative ceramic products. In the present work the possibility of using serpentinite muds from a quarry of dunite rocks to make ceramic products is explored. It was found that the ceramic blocks obtained after processing these muds present a very high fracture resistance, very low porosity with an optimum colour after firing, and an excellent polished surface, qualities which make them highly suitable for producing porcelain stoneware. 相似文献
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Due to the large amount of ceramic tile polishing waste generated in China, the recycling of this waste residue becomes important. Herein a foam ceramic was successfully produced by using ceramic tile polishing waste as main raw material. In this research, SiC was added as the foam agent, and the foaming mechanism was also investigated. The results showed that the best dosage of SiC was 1%. Furthermore, in order to obtain a foam ceramic with better structure, the sodium phosphate was added in raw materials as foam stabilizer. The influence of this addition on the microstructure and properties of foam ceramic was investigated. It was found that the optimum additive amount of sodium phosphate is 2–3%. 相似文献
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Xu Zhao Zhixiao Zhang Weixing Li Yingjie Shi Xu Guo Xiaorong Zhang Dongfang Xu Weipeng Li Shenjun Qin 《International Journal of Applied Ceramic Technology》2023,20(5):2681-2699
Ceramic proppants are preferred in hydraulic fracturing because of their high strength, good sphericity, and excellent acid corrosion resistance. Bauxite is the main raw material of ceramic proppants, but with the increasing depletion of bauxite resources, substitutes for bauxite need to be sought. Coal gangue is a solid waste that is rich in SiO2 and Al2O3, making it a potential substitute for the preparation of ceramic proppants. The use of coal gangue to prepare ceramic proppants can reduce the cost of ceramic proppants and benefit environmental protection. Studies on using coal gangue to prepare ceramic proppants have been conducted and achieved progress, but further improvement can still be obtained. Here, the basic principle, progress, and prospects of coal gangue ceramic proppants are reviewed. First, coal gangue ceramic proppants are divided into two categories, namely, proppants prepared using coal gangue as an auxiliary material and proppants prepared using coal gangue as the main material. Second, the progress of research of coal gangue ceramic proppants is summarized from the perspective of additives, and the influence of different kinds of additives on the sintering temperature and performance of proppants is discussed. Lastly, the future prospects of coal gangue ceramic proppants are presented. 相似文献
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无机高分子复合型混凝剂具有优越的絮凝能力,但目前于基于固废资源化利用制备无机高分子复合混凝剂的相关研究缺乏系统性。本文介绍了三类固废基无机高分子复合混凝剂的制备工艺、性质特点,简述了其在水处理领域的应用、作用机理及存在的问题,并结合新型无机高分子复合混凝剂的研究进展,分析了固废基无机高分子复合混凝剂的发展方向。根据已有结果,文中指出需要从固废原料的化学组成,建立全面的固废资源,优化不同来源固废基无机高分子复合混凝剂的制备工艺;其次指出应进行混凝剂的物耗、能耗等技术经济分析,促进其规模化生产使用;并提出对污泥固废应进行循环资源化利用,关注制备过程中产生的无机盐,避免对水质的不良影响;最后表明,应加强混凝剂功能化研究,开发具有协同效应的固废基无机高分子复合混凝剂。 相似文献
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随着国民经济的快速发展,废旧橡胶轮胎、废旧塑料、废旧纤维素以及污泥等固体废弃物的量迅猛增加,固体废弃物的处理和资源化已迫在眉睫。在固体废弃物的处理及资源化过程中,微波技术具有加热速率快、加热均匀和固体废弃物有价值资源的选择性好等优点。采用微波技术处理废旧橡胶轮胎时,产物中的液体有机物选择性比较高,对炭黑和钢丝等物料的回收也比较简单,国外已有日均处理(6 000~7 000)条废旧轮胎的工业化生产线,可以实现废旧轮胎100%资源化再利用;在废旧塑料聚丙烯中添加石墨等微波吸收物质,然后进行微波技术处理,烯烃类组分的液体产物可以达到48.16%;废旧纤维素及其制品可以在较低温度下进行微波处理,废纸在200℃进行微波裂解可以获得15%的裂解气、42%的裂解油和43%的炭黑;含油污泥进行微波技术处理不但可获得液体有机物,还能够实现污泥的油水分离。因此,采用微波技术处理固体废弃物是一个废物的减量化、无害化和资源化过程,具有很好的应用前景。对近年来采用微波技术处理这些固体废弃物及其资源化的研究进展进行总结和评述,以期对我国固体废弃物处理和资源化的发展提供参考。 相似文献
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陶瓷抛光废料对多孔陶瓷砖气孔形成过程影响的研究 总被引:2,自引:1,他引:1
本文以陶瓷抛光废料为主要原料,研制了以石英和莫来石为主晶相的多孔陶瓷轻质砖,采用XRD、显微镜分析了陶瓷抛光砖废料对其气孔形成过程的影响,探讨了影响其气孔形成的主要因素。研究结果表明,陶瓷抛光砖废料由于含有机物和无机盐,可作为成孔剂,在400-700℃温度范围,有机物分解形成小气孔,随着温度的升高,以钙镁碳酸盐为主的无机盐在900℃左右分解,所形成的气孔由小变大;影响多孔陶瓷轻质砖气孔形成的主要因素是原料配方和烧成制度。 相似文献