The results show that the dispersity order of phosphates from strong to weak is as follows: sodium hexametaphosphate, sodium pyrophosphate, trisodium phosphate.

• 结果表明：磷酸盐对这4种矿物分散效果由强至弱的顺序为：六偏磷酸钠, 焦磷酸钠, 磷酸三钠；