|
| Study on Interaction among Pyrite Catalyst Particles Used in Direct Coal Liquefaction |
|
|
| View Full Text View/Add Comment Download reader |
| DOI：doi：10.3969/j.issn.1007-7545.年份.期号.顺序号 |
| KeyWord:Interface interaction ; DLVO theory ; Disperse |
| YIN Zhou-lan,DING Zhi-ying,CHEN Qi-yuan |
|
| Hits: 2297 |
| Download times: 25 |
| Abstract: |
| The pyrite catalyst used in direct coal liquefaction was prepared by mechanochemical reaction. The dispersing and interface action of pyrite in non-polar organic medium of heptane with or without disperants were studied. The behaviors of agglomeration and dispersion in non-polar organic medium were illuminated with DLVO theory. The results show that stearic acid and 1-octadecanol were effective to improve the dispersity of pyrite. For hydrophobic pyrite, there was no polar interaction energy in pyrite-heptane with polar dispersants. The interaction was dominated by Lifshitz-van der Waals interaction energy. |
| Close |