非骨架铝浸出法制备气化炉渣基地聚物分子筛的性能研究  

Study on the Properties of Gasification Furnace Slag Base Polymer Molecular Sieve Prepared by Non-framework Aluminum Leaching Method

作　　者：杨柳 张海贵 张丽敏 吴伟奇 陈华 杨潘[1] 唐洋洋 YANG Liu;ZHANG Hai-gui;ZHANG Li-min;WU Wei-qi;CHEN Hua;YANG Pan;TANG Yang-yang(Huaqing College,Xi'an University of Architecture and Technology,Xi'an Shaanxi 710043,China)

机构地区：[1]西安建筑科技大学华清学院,陕西西安710043

出　　处：《当代化工》2022年第11期2602-2605,共4页Contemporary Chemical Industry

基　　金：陕西省教育厅科研专项气化炉渣基地聚合物分子筛的制备及其性能研究(19JK0490)。

摘　　要：煤气化技术作为煤炭清洁利用的重要手段之一,是煤炭高效利用的核心技术。然而,该技术所产生的煤气化炉渣体量庞大,如果处理不当会造成严重的环境问题。目前,国内对气化炉渣应用比较单一,且利用率不高。结合煤气化炉渣自身具有的多孔结构,制备出了吸附剂,实验研究了其用于降解印染废水的性能。结果表明:随着晶化时间的增加,分子筛结构表面出现更为蓬松且呈交织状孔隙形态,多级孔结构排布也更为致密。晶化14 h,铝酸钙的衍射峰较为尖锐,说明铝酸钙的含量有所升高。在不同晶化时间制得的分子筛吸附重金属离子Cu2+试验中,得到的吸附效果显著,对重金属Cu2+的吸附率都在96.12%以上,最高可达98.91%。Coal gasification technology as one of the important means of coal clean utilization,is the core technology of coal efficient utilization.However,coal gasification slag produced by the technology is huge,if it is not handled properly,it can cause serious environmental problems.At present,the application of gasification slag is single,and the utilization rate is not high.In this paper,the adsorbent was prepared in combination with the porous structure of coal gasification slag,it was used as adsorbent to degrade printing and dyeing wastewater.The experimental results showed that with the increase of crystallization time,the surface of molecular sieve structure became more fluffy and showed interlacing pore shape,the arrangement of multistage pore structure became more compact.For molecular sieve crystallized for 14 h,the diffraction peak of calcium aluminate was relatively sharp,indicating that the content of calcium aluminate was increased.In the experiment of heavy metal ion Cu2+adsorption by molecular sieve with different crystallization time,the adsorption effect was remarkable,Cu2+ion adsorption rate was over 96.12%,the highe st value reached to 98.91%.

关 键 词：煤气化炉渣 吸附 重金属离子 微观形貌 

分 类 号：TQ424.25[化学工程]