魔芋葡甘聚糖磷酸酯对高岭土悬浊液的絮凝研究（Ⅰ）

魔芋葡甘聚糖磷酸酯对高岭土悬浊液的絮凝研究（Ⅰ）奉平陈旭东（西南师范大学环境化学研究所重庆，６３０７１５）（华南理工大学高分子系广州，５１０６４１）杨大成，付英姿（西南师范大学化学系重庆，６３０７１５）关键词：魔芋葡甘聚糖磷酸酯（ＫＧＭＰ），高岭土，...

THE FLOCCULATION OF GAOLIN SUSPENSION BY KONJAC GLUCOMANNAN PHOSPHATE

The flocculation mechanism of Konjac Glucomannan Phosphate(KGMP)was investigated,the KGMP is a kind of anionic agglomerative agent.Showing no flocculating action toward Gaolinsuspension without polybasic cations,nevertheless it possesses good flocculating action by addingpolybasic cations.It is found that the prime condition to achieve flocculation is that the polymershauld be able to be absorbed on the Gaolin surface,however,both KGMP and Gaolin particlesare negatively charged,thus it is impossible for them to approach each other,so that the flocculation condition is not.atisfied. When the polybasic cation is added, KGMP shall agglomerate toscreen the negative charges of KGMP and allow the flocculation agent to approach the Gaolin particle. The flocculation action increses with the increase of screen capecity of polybasic cation.