Recovery of Petroleum Sulfonate from Wastewater by Extractive Crystallization

Zi Yan Feng; Qing Song Li; Yu He Song; Xiao Tong Sun; Lan Yi Sun

doi:10.4028/www.scientific.net/AMR.524-527.1852

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 524-527Recovery of Petroleum Sulfonate from Wastewater by...

Recovery of Petroleum Sulfonate from Wastewater by Extractive Crystallization

Abstract:

Extractive Crystallization was used to recover petroleum sulfonate from wastewater. The simple process significantly reduced power consumption. Ethanol, isopropanol and n-butanol were used as extractant to recover petroleum sulfonate and remove ammonium sulfate. This work systematically studied the effect of different extractants for the wastewater. The results showed that: the crystallization ratio of n-butanol was much lower than that of ethanol and isopropanol with a certain solvent ratio at room temperature, but the purity of the petroleum sulfonate extracted by n-butanol was much larger than that of ethanol and isopropanol. Petroleum sulfonate recovery was in the order of ethanol ＞isopropanol ＞n-butanol. Therefore, suitable extractant and solvent ratio were selected based on different product requirements, which achieved the dual purposes of removing ammonium sulfate and recovering petroleum sulfonate.

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Periodical:

Advanced Materials Research (Volumes 524-527)

Pages:

1852-1855

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.524-527.1852

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Online since:

May 2012

Authors:

Zi Yan Feng, Qing Song Li, Yu He Song, Xiao Tong Sun, Lan Yi Sun

Keywords:

Ethanol, Extractive Crystallization, Isopropanol, Petroleum Sulfonate, Wastewater

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