摘要
本文研究了六种金属离子在三种煤表面的吸附规律,研究结果表明:铜离子能够改善煤的制浆效果,即铜离子加入煤浆中,分散剂的用量降低50%,煤浆浓度提高;钙、镁、钻、锌离子对煤的成浆性不利的原因是它们不能有效地被吸附到煤表面,游离的金属离子和分散剂发生反应,使得吸附到煤表面的分散剂相对减少,煤的成浆性变差。
In this paper, the adsorption of six metal cations on the coal surface was stud-ied systematically. It was revealed that the slurriablity of coal is improved by adding Cu ̄(2+) tocoal water slurry (CWS), the economical efficiency of dispersant is more than 50W/%, anddecreased by the presence of Ca ̄(2+) , Mg ̄(2+), Zn(2+), Co ̄(2+) cations. This is caused by, probably,the different co- ordination properties of the cations in coal water slurry preparations.
出处
《燃料化学学报》
EI
CAS
CSCD
北大核心
1995年第4期435-440,共6页
Journal of Fuel Chemistry and Technology
关键词
金属离子
煤吸附
煤成浆性
metallic cations, adsorption of coal, slurriablity of coal