巴拉贡矿区低品位坡缕石粘土的成胶性能探讨  

A tentative discussion on the gelatination of low-grade palygorskite clays in the Balagong mine

作　　者：周清[1] 尹琳[1] 李真[1] 何坤[1] 

机构地区：[1]南京大学地球科学系,江苏南京210093

出　　处：《岩石矿物学杂志》2008年第3期227-231,共5页Acta Petrologica et Mineralogica

基　　金：南京大学测试基金资助项目

摘　　要：以改良库布齐沙漠为目的，结合坡缕石粘土特有的成胶性、吸附性和保水性能，用巴拉贡矿区的低品位坡缕石粘土进行了粘土成胶性能的研究。结果表明，在加入聚合物PAAS含量相同的条件下（与水的体积比为0．05mL／100mL），球磨成胶和胶磨成胶的效果较好，两者的最佳土水比值相近，约20～21g／100mL，略高于棒磨成胶的18g／100mL，远高于均质成胶的6g／100mL。本研究为改良沙漠化土壤提供了新思路，同时为坡缕石矿物找到了新的应用领域，拓宽了低品位坡缕石粘土的市场。In order to improve the soil in Hobq desert, this paper has dealt with such characteristics of palygorskite clays as gelatination, water absorbency and water conservation. Using local palygorskite-bearing clays from the Balagong mine, the authors conducted experiments on the formation of colloids, and the results show that the better ways seems to be ball-milling and colloid-milling under the constant condition that the ratio of poly-acrylic acid sodium （PAAS） to water is 0.05 mL/100 mL. In this way, the ratio of soil to water reaches 20-21 g/100 mL, which is higher than that of rod-milling （18 g/100 mL） or churning up （6 g/100 mL）. This study has provided a practicable method for desert control and opened up a new vista for the application of barren palygorskite clays.

关 键 词：巴拉贡矿区 低品位 坡缕石粘土 成胶 

分 类 号：P579[天文地球—矿物学] P578.94[天文地球—地质学]