The oil absorption value test clarifies that the surface oleophilic character of MnCO3 received on the condition that butanol, CTAB bulk ratio of 1:4 have been well improved.

• 吸油值测定结果表明：经正丁醇与CTAB体积比为1:4体系得到的碳酸锰粉表面亲油性能得到明显改善。