位置:成果数据库 > 期刊 > 期刊详情页
Sodium-modification of Ca-based bentonite via semidry process
  • ISSN号:1005-9784
  • 期刊名称:中南工业大学学报(英文版)
  • 时间:0
  • 页码:1201-1206
  • 语言:中文
  • 分类:TD[矿业工程]
  • 作者机构:[1]School of Resources Processing and Bioengineering, Central South University, Changsha 410083, China
  • 相关基金:Foundation item: Project(50725416) supported by the National Science Fund for Distinguished Young Scholars; Project(50804059) supported by the National Natural Science Foundation of China; Project(2008BAB32B06) supported by the Key Project in the National Science and Technology Pillar Program during the 11th Five-Year Plan Period; Project(200805331080) supported by the Specialized Research Fund for the Doctoral Program of Higher Education
  • 相关项目:以劣质煤为主要原料制备新型铁矿球团粘结剂的研究
中文摘要:

以便改进 Hunyuan 劣等的 Ca-based 火山灰成胶状黏土(Ca-Bent ) 的质量, semidry 过程被用来修改 Ca-Bent 进优异基于 Na 的火山灰成胶状黏土(Na-Bent ) 。影响钠修正的因素被调查。优化试验性的参数如下被获得:Na2CO3 剂量 4.0% ,变老的时间 25 d, briquetting 压力 25 MPa 和 briquetting 潮湿 20% 。在优化条件下面,修改 Na-Bent 有 73.6 的胶体价值 mL/(3g ) , 38 mL/g 的膨胀和在 465% 的 2 h (2HWA ) 的水吸收分别地。成球形的结果显示修改 Na-Bent 小团比 Ca-Bent 小团有更高的落下力量和压缩力量。

英文摘要:

In order to improve the quality of Hunyuan inferior Ca-based bentonite (Ca-Bent), semidry process was used to modify Ca-Bent into superior Na-based bentonite (Na-Bent). The factors affecting sodium-modification were investigated. The optimized experimental parameters are obtained as follows: Na2CO3 dosage 4.0%, ageing time 25 d, briquetting pressure 25 MPa and briquetting moisture 20%. Under the optimization conditions, the modified Na-Bent has a colloid value of 73.6 mL/(3g), dilation of 38 mL/g and water absorption in 2 h (2HWA) of 465%, respectively. The bailing results indicate that the modified Na-Bent pellets have higher drop strength and compression strength than the Ca-Bent pellets.

同期刊论文项目
期刊论文 12 会议论文 4 获奖 2 专利 1
期刊论文 50 会议论文 4 获奖 3 专利 18 著作 1
同项目期刊论文