Preparation of surfactants by sulfonating derivatives of depolymerized coal

摘要

Surfactants or surface active agents may be obtained by treating the product obtained from the boron trifluoride etherate catalyzed depolymerization of coal with a sulfonating agent such as sulfur trioxide and thereafter neutralizing the sulfonated product with a basic compound such as sodium hydroxide to obtain a sodium sulfonated derivative of the depolymerized coal product.