Paper Title:
Study on Upgrading and Further Usage of Glycerol from Waste Water
  Abstract

Waste water from enzymatic biodiesel technology (contained glycerol 5%) is treated as following: Firstly, waste water is filtered with a gauze, add KOH to PH=7~8, and filter to remove salt soap. Secondly, the processed liquid distil at 50°C in Rotary Evaporator vacuum to remove most of water and methanol, then concentrated solution use plinthic flocculants (mass ratio of 100:1), stirring at 70°C to eliminate colloid. Finally, at 180°C, 0.8 kPa to vacuum distil to collect glycerol of purity up to 90.43%.The glycerol react with acetic acid to get glycerol triacetate with phosphotungstic acid catalyst, toluene as water-carrying agent. Thus comes out the yield of more than 90% glycerol triacetate in 6 hours.

  Info
Periodical
Advanced Materials Research (Volumes 383-390)
Chapter
Chapter 17: Manufacturing Process Planning and Scheduling
Edited by
Wu Fan
Pages
4511-4515
DOI
10.4028/www.scientific.net/AMR.383-390.4511
Citation
X. Y. Guo, B. B. Ci, S. G. Li, W. Hu, J. L. Yu, X. H. Tang, "Study on Upgrading and Further Usage of Glycerol from Waste Water", Advanced Materials Research, Vols. 383-390, pp. 4511-4515, 2012
Online since
November 2011
Export
Price
$32.00
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