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发明公开
CN101787326A 一种复合磺酸钙润滑脂及其制备方法 有权

一种复合磺酸钙润滑脂及其制备方法
摘要：
本发明公开了一种复合磺酸钙润滑脂及其制备方法，润滑脂由如下原料按配比构成：(A)占润滑脂总重的40-80％的基础油，该基础油在40℃的运动粘度为40-1600mm2/s；(B)占润滑脂总重的10-50％的高碱值合成磺酸钙，其总碱值在380KOH/g-420mgKOH/g之间；(C)复合稠化剂，由为占润滑脂总重的0.5-5％的C12-C22的羟基脂肪酸、0.5-3％的硼酸，0.5-3％的磷酸、0.5-2％的氢氧化钙混合组合而成；复合磺酸钙润滑脂制备方法：通过混合、搅拌、加热、加热升温、均化、脱气等步骤制成，本发明不用转化剂，仅加入水即可实现无定型碳酸钙完全转化为方解石晶型碳酸钙，同时在复合技术配方中采用磷酸与硼酸共同改进复合磺酸钙润滑脂的技术，因此本发明的特点是方法简单，易于控制，产品性能稳定。
摘要（英）：

The invention discloses a composite calcium sulfonate grease lubricant and a preparation method thereof. The grease lubricant has the following ingredients by proportion: A) base oil which accounts for 40-80% of the gross weight of the grease lubricant, with kinematic viscosity of 40-1600mm2/s at temperature of 40 DEG C; B) high base number synthesized calcium sulfonate which accounts for 10-50% of the gross weight of the grease lubricant, with total alkali value of 380-420mgKOH/g; and C) a composite densifier comprising C12-C22 hydroxy fatty acid, boric acid, phosphoric acid and calcium hydroxide, accounting for 0.5-5%, 0.5-3%, 0.5-3% and 0.5-2% of the gross weight of the grease lubricant respectively. The preparation method comprises the following steps: mixing, stirring, heating, heating up, homogenizing, degassing, etc. In the invention, no transforming agents are used, amorphous calcium carbonate can be thoroughly converted into calcite crystal form calcium carbonate merely by adding water, and phosphoric acid and boric acid are used in the composite technology formula to improve the technology of composite calcium sulfonate grease lubricant. The method has the advantages of simple method and easy control and the product has stable performances.

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