研究了 pH 值、尿素、无机盐对木质素磺酸钠(SL)在碳酸钙表面的吸附特性的影响，发现静电作用和氢键作用不是 SL 在碳酸钙表面吸附的主要驱动力，而具有较强络合能力的盐类能显著降低 SL 的吸附量，采用氯化锂封闭 SL 的部分羧基也能使其吸附量有所降低，说明 SL 的羧基与碳酸钙之间的络合作用是控制其吸附的主要驱动力． 文中还制备了高羧基含量(2． 59mmol/g)的木质素羧酸钠(CAL)，发现 CAL 用作三次采油牺牲剂时，在较低含量下即具有显著的牺牲效果，最大牺牲值可达95． 15%;同时 CAL 和 SL 都与十二烷基苯磺酸钠具有较好的协同效果．

By investigating the influences of pH value，urea and inorganic salts on the adsorption property of sodium
lignosulfonate (SL) on calcium carbonate (CaCO₃)，it is found that the electrostatic interaction and the hydro-gen bondingare not the main adsorption driving forces of SL adsorption on CaCO₃ surface，and that the salts with strong complexation ability as well as the blocking of some carboxyl groups of SL with lithium chloride may decrease the adsorption capacity of SL，which means that the complexation between the carboxyl of SL and CaCO₃ is the main adsorption driving force． Moreover，by using carboxymethylated lignin (CAL) with high carboxyl content (2. 59mmol/g) as a sacrificial agent in tertiary oil recovery，it is found that CAL is of outstanding sacrificial effect even at low mass concentration，with a maximum sacrificial effect value being up to 95. 15%; and that both CAL and SL possess good compounding effect with sodium dodecyl benzene sulfonate．