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矿物表面金属离子组分与糊精的相互作用(Ⅰ)──糊精在矿物表面的吸附
Adsorption of dextrin on mineral surfaces
【摘要】 通过矿物表面糊精吸附量的测定、电动电位测定及在不同pH值下矿物表面羟基浓度的测定,系统探索了糊精在赤铁矿、金红石、方解石、萤石、重晶石、磷灰石及硅灰石等氧化矿和盐类矿物表面附吸的规律,发现糊精的吸附主要是由于与矿物表面金属羟基化合物发生了程度不同的化学作用。
【Abstract】 A study has been carried out to investigate the adsorption behaviour of dextrin on the surfaces of oxide the salt-type minerals such as hematite,rutile,calcite, fluorite, barite, apatite and wollastanite by means of adsorption isotherm and electrokinetic mobility memasurements,as well as mineral surface hydroxyl group concentration determinations. It is found that the adsorption of dextrin on the tested minerals is achieved through interaction with surface metal hydroxy complexes of the minerals.
【关键词】 糊精;
矿物;
吸附;
金属羟基化合物;
作用机理;
【Key words】 Dextrin; Minerals; Adsorption; Metal hydroxyl group; Interaction mechanism;
【Key words】 Dextrin; Minerals; Adsorption; Metal hydroxyl group; Interaction mechanism;
- 【文献出处】 化工矿山技术 , 编辑部邮箱 ,1994年02期
- 【分类号】P57
- 【被引频次】6
- 【下载频次】161