Detergent from soap-out water

• Main Authors: Shih-Chi Chaung, 張世麒
• Other Authors: Chang-cing Guan
• Format: Others
• Language: zh-TW
• Published: 2006
• Online Access: http://ndltd.ncl.edu.tw/handle/56pne9

碩士 === 靜宜大學 === 應用化學研究所 === 94 === The salt out process of the soap manufacture produced much alkaline salt liquid. Hitherto retrieving glycerin is the only process done on the waste salt liquid. We utilize this alkaline salt solution becoming a detergent by neutralizing dodecylbenzene sulfonic acid and fatty acid to form anionic surfactant. Detergent should be biodegradable and hard water tolerable. From research and development and testing the prescription, the product will be environment-friendly detergent. We analyze soda, salt and soap content in the waste salt out liquid, calculating the amount of alkyl sulfonic (or fatty) acid and other components needed to blend with detergent. Biodegradation, lime soap dispersing ability and detergency are tested in order to concoct an environment-friendly detergent.