Synthesis and investigation of sulfonated acetone-formaldehyde polycondensate as dispersant for coal-water slurry

DOI

10.2991/emeit.2012.129How to use a DOI?

Keywords

sulfonated acetone–formaldehyde(SAF), dispersant, coal-water slurry CWS, application

Abstract

According to the literature preparation process, sulfonated acetone - formaldehyde polycondensate (SAF) was prepared with different mole ratio of formaldehyde (F) and acetone (A). Its structure was characterized by IR and TGA. SAF was applied in the Shenhua coal-water slurry (CWS). And the slurryability and stability of the CWS were tested using the viscometer. Wetting performance of SAF dispersant on the surface of coal was studied via video contact angle. The SAF, synthesized with the mole ratio of formaldehyde and acetone at 2.2, performances best in Shenhua coal-water slurry. The SAF is a promising dispersants for Shenhua coal after it was optimized. Under 65 wt% of the coal concentration and 0.45 wt% of the dosage of dispersant, the viscosity of CWS is 476 m Pa • s at the shear rate of 100s-1, the 7 days separating water ratio is 4.63 v/v%, and wetting properties of SAF is better than water on the coal surface.

Copyright

© 2012, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Junfeng Zhu
AU  - Guanghua Zhang
AU  - Junguo Li
AU  - Fang Zhao
AU  - Qianqian Qu
PY  - 2012/09
DA  - 2012/09
TI  - Synthesis and investigation of sulfonated acetone-formaldehyde polycondensate as dispersant for coal-water slurry
BT  - Proceedings of the 2nd International Conference on Electronic & Mechanical Engineering and Information Technology (EMEIT 2012)
PB  - Atlantis Press
SP  - 610
EP  - 613
SN  - 1951-6851
UR  - https://doi.org/10.2991/emeit.2012.129
DO  - 10.2991/emeit.2012.129
ID  - Zhu2012/09
ER  -