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Preparation and Characteristics of Anionic Surfactant Using Waste Fleshing Scrap  

Shin, Soo-Beom (Korea institute of Footwear & Leather Technology)
Min, Byung-Wook (Korea institute of Footwear & Leather Technology)
Yang, Seung-Hun (Korea institute of Footwear & Leather Technology)
Park, Min-Seok (Korea institute of Footwear & Leather Technology)
Won, Gi-Chun (SM Softland CO. Ltd)
Paek, Doo-Hyeon (Dept. of Textile Engineering, Chungnam National University)
Publication Information
Textile Coloration and Finishing / v.18, no.6, 2006 , pp. 31-36 More about this Journal
Abstract
Study has been made for producing anionic surfactant using waste fleshing scraps from the leather making process through refining, esterification, sulfonation and blending processes. As a most optimum lard oil refining method, refining was carried out for 4 hours under temperature of $120^{\circ}C$ and approximately 200 mbar vacuum, which gave a recovery of more than 80% lard oil. Refined lard oil obtained thus was undergone methlyl-esterification, then sulfonated to make a degreasing agent. By methyl-esterification using lard oil, more than 85% of fatty acid and $12{\sim}13%$ of glycerine were extracted from the oil. Sulfonation of the extracted fatty acid ester lard oil has shown most optimum at $15{\sim}20%$ chlorosulfonic acid content, and the content of bonding sulfate at this time was higher than 3.5%. Finally the followed anionic surfactant having degreasing force of 80% and higher could be made by blending process.
Keywords
Lard oil; Esterfication; Sulfonation; Surfactant; Fatty acid;
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