共查询到20条相似文献,搜索用时 218 毫秒
1.
2.
3.
国内外大多数装置采用颗粒活性白土来脱除重整生成油中的烯烃。但是,白土频繁更换不仅不利于安全生产,而且废弃的白土污染环境,处理费用较高,导致白土综合使用费用居高不下。针对活性白土的缺点,开发出一种新型的单程寿命较长且可以反复再生的重整生成油非加氢精制催化剂TCDTO-1用于取代白土。设计了一套脱除重整生成油中微量烯烃的侧线试验装置。侧线试验结果表明,TCDTO-1精制催化剂具备优良的活性和稳定性,单程寿命达到白土的7倍以上,具备工业应用价值。 相似文献
4.
5.
针对废弃白土资源短缺和无法循环利用的问题,提出对志丹废弃白土进行改性,以提高废弃白土的重复利用。对此,以陕北志丹废弃白土为载体,采用离子交换法和等体积浸渍法对废弃脱色白土改性,然后通过LPG吸附脱硫试验对改性后的白土脱硫性能进行验证,并分别探讨了不同制备方法、负载不同金属离子和不同活性助剂浓度对改性白土脱硫性能的影响。结果表明,采用离子交换法负载金属对废弃白土进行改性得到的白土吸附剂的脱硫性能最佳;以浓度为0.1mol/L的Cu(NO3)2溶液作为活性助剂得到的改性白土脱硫效果明显。 相似文献
6.
7.
8.
环境问题已然是如今的热点,生态的失调,环境的恶化,一系列严峻的问题正在威胁着人们的正常生活,同时也严重影响和制约着经济的发展。通过在对周边环境状况的调查,寻找到一个人与环境和谐共生的良好出路! 相似文献
9.
10.
工业埋地管道在施工过程中因质量控制不好导致管道发生介质泄漏,将会污染环境,危及生态,对企业安全生产构成一定的威胁。本文对埋地管道的施工提出如何加强质量控制的一些方法。 相似文献
11.
泥巴是取之不尽、用之不竭的原料,中国人把它变成了陶瓷,创造了最早中国陶瓷的神话。如今,各式各样的陶瓷酒瓶已作为一种文化景观。客家妇女服饰文化以其独特的色彩、纹饰和造型向世人昭示着她的魅力与风采。如何使客家妇女服饰文化的魅力在现代陶瓷酒瓶中得以更好地体现而发散出感人的艺术魅力,是值得我们思考的。本文结合"红豆情"陶瓷酒瓶的设计而发表粗浅的认识,望能得到同行大家的关注。 相似文献
12.
Enrico Bernardo Leonardo Esposito Elisa Rambaldi Antonella Tucci Sandro Hreglich 《Journal of the American Ceramic Society》2008,91(7):2156-2162
The reuse of soda–lime–silica scrap or waste glasses as additives for traditional ceramics has been investigated extensively in the literature. Although interesting, this solution does not generally allow large quantities of glass to be recycled. This study reports a novel high glass recycle approach that replaces, in the formulation of porcelain stoneware, the feldspar flux with finely powdered glass derived from the melting of different waste products, e.g. lime from fume abatement systems, feldspar mining residues, and scrap soda–lime glass. At an optimized glass/clay ratio, the "glass–ceramic stoneware" samples sinter at 1000°C. The "glass–ceramic stoneware" has a bending strength approaching 90 MPa and a fracture toughness exceeding 2.0 MPa·m0.5 , similar to those of conventional porcelain stoneware, which requires sintering at higher temperatures. The high strength and fracture toughness are attributed to the interaction between the glass and clay residues upon sintering, which allows the development of several different crystalline phases. 相似文献
13.
14.
15.
在陶瓷装饰中,传统"半刀泥"刻画技艺,有其独立的艺术语言及审美,且有自己的适用范围。分析发现"半刀泥"具有变化的笔触,表现力强烈。适用透明或半透明的色釉料。 相似文献
16.
瓷业在景德镇历史发展中具有举足轻重的地位,景德镇瓷工在对瓷业的依赖中产生了瓷业神信仰,主要为瓷土神、师主、风火神,在景德镇瓷业祭祀礼俗中具有极尊崇的地位,富有深厚的文化内涵和浓郁的地方特色。对景德镇瓷业生产既具有积极意义亦具有消极意义。 相似文献
17.
Juliano Alves de Senna Carlos Roberto de Souza Filho Rmulo Simes Anglica 《Applied Clay Science》2008,41(1-2):85-98
The characterization of clays from the physical, chemical, and ceramic standpoint in pre-and-within mining stages is a necessary step. However, succinct mining planning, lack of industry-oriented standards and the usual bond to empirical discrimination of clays as regards their use, imply in mixing chemically and technologically different materials, with serious consequences to the mining and manufacturing process. Taking the alluvium-derived, ball-clay deposit of São Simão (SS) as a case study, this works aims to evaluate the potential of reflectance spectroscopy (RS) as a method to define types, purity and crystallinity of clays and to seek a possible relation between spectral characteristics of clays and their use in the ceramic industry. The SS deposit hosts three types of clays that were spectrally set apart based on RS. The technique indicated that the white clays comprise highly ordered kaolinite, mica, smectite and lepidocrosite (first finding in Brazilian alluviums). The brown clays are also rich in well-ordered kaolinite and contain abundant Fe-bearing minerals, as goethite, hematite and siderite (rarely found in alluviums). The gray clays are kaolinite-poor and are abundant in organic matter and smectites. Each of the clay classes typified in the SS deposit has a specific application in the fine ceramic industry, indicating the prominent potential of RS to characterize industrial materials. 相似文献
18.
根据《中华人民共和国循环经济促进法》的要求,结合鸡西矿区实际情况,探讨了鸡西矿区发展循环经济模式的框架构建,以便于对当地及煤炭产区开展循环经济建设起到借鉴作用。 相似文献
19.
豫西"三软"煤层矿区,煤层赋存不稳定,采空区残留有大量煤炭。针对这一情况,采用整体顶梁组合悬移支架配合采煤机机采放顶煤和局部地段炮采的工艺复采残煤,从技术和管理的角度控制复采面煤质,并加强瓦斯灾害与采空区积水水害的预防,保证开采安全,也为类似情况矿井提供残煤复采工艺参考。 相似文献
20.
Abdrakhimov V. Z. Abdrakhimova E. S. 《Theoretical Foundations of Chemical Engineering》2019,53(4):703-707
Theoretical Foundations of Chemical Engineering - A ceramic porous filler obtained from intershale clay and oil sludge, which are pollutants in the environment, is the object of this study. The... 相似文献