Determination of Synthesis Conditions of Medium, High, and Overbased Alkali Calcium Sulfonate

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• 作者：Bilsen Be//pubs.acs.org/images/entities/scedil.gif" border="0">ergil ; Alp Akin ; Seç ; il Ç ; elik
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2007
• 出版时间：March 28, 2007
• 年：2007
• 卷：46
• 期：7
• 页码：1867 - 1873
• 全文大小：239K
• 年卷期：v.46,no.7(March 28, 2007)
• ISSN：1520-5045

文摘

This review covers a method for preparing an overbased detergent-dispersion additive called overbasedcalcium sulfonate solution (OBCSS) containing 38.9% (w/w) CaCO₃, with a total base number (TBN) valueof 436 mg KOH, starting from neutral calcium sulfonate solution (NCSS).^1,2 After the column conditionswere optimized, the reaction parameters (P_CO2 and the amounts of Ca(OH)₂, water, and monoethanolamine(MEA)) were examined throughout the tests. The first product medium alkali calcium sulfonate solution(MACSS) with 8.5% (w/w) CaCO₃ (TBN = 95 mg KOH/g) is obtained, but higher base values could not bereached. In the second stage, monoethanolamine is added to the feed as a promoter and high alkali calciumsulfonate solution (HACSS) containing 30.4% (w/w) CaCO₃ with the value of TBN = 274 mg KOH/g isobtained. In the third stage of the study, targeted product OBCSS is obtained by using HACSS as a feedstockcomponent instead of NCSS.