High quality potassium phosphate production through step-by-step glycerol purification: A strategy to economize biodiesel production

被引：44

作者：

Javani, Azita ^{[1
,2
]}

Hasheminejad, Meisam ^{[1
,2
]}

Tahvildari, Kambiz ^{[2
]}

Tabatabaei, Meisam ^{[1
]}

机构：

[1] Agr Biotechnol Res Inst Iran, Microbial Biotechnol & Biosafety Dept, Biodiesel Res Team, Karaj 315351897, Iran

[2] Islamic Azad Univ, Fac Chem, Dept Appl Chem, Tehran N Branch, Tehran 1913674711, Iran

来源：

BIORESOURCE TECHNOLOGY | 2012年 / 104卷

关键词：

Potassium phosphate; Glycerol; Biodiesel; Economization; Purification;

D O I：

10.1016/j.biortech.2011.09.134

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

The cost of biodiesel production can be reduced by a number of strategies such as utilization of waste cooking oils and non-edible plant oils as well as implementation of improved separation technologies. In addition, processes dealing with the glycerol by-product can have economic benefits. In the present study, acidification of crude glycerol with phosphoric acid to pH 9.67 followed by acidification to 4.67 was implemented to produce high quality potassium phosphate during glycerol purification. KH2PO4, K2HPO4, glycerol and free fatty acids (FFAs) with a purity of 98%, 98.05%, 96.08% and 99.58% were obtained, respectively. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：788 / 790

页数：3

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