膨胀石墨的尺寸效应及其对油吸附的影响

用不同粒度的石墨在相同条件下酸化、高温膨胀，可获得膨胀倍数不同的膨胀石墨。通过扫描电镜及X射线衍射等观察膨胀石墨结构，证实在生产条件如酸氧化工艺、膨胀温度等相同时，鳞片石墨的粒度越大则膨胀倍数越高，对油的吸附性能越好。     

双膦酸捕收铌铁金红石机理研究

本文以纯铌铁金红石矿物为研究对象，介绍并比较几种捕收剂对其捕收效果的影响。试验结果表明，在矿浆ｐＨ为２～４之间时，双膦酸是铌铁金红石良好的捕收剂，使铌铁金红石的回收率达到９０．８７％～９１．７０％，而且其捕收性能优于试验所用的其他几种捕收剂。同时着重探讨了双膦酸与铌铁金红石的作用机理，并认为双膦酸在铌铁金红石的表面被吸附，而且其吸附形式主要为化学吸附。     

染料—浮选剂络合物形成法测定捕收剂在煤表面吸附量的研究

利用捕收剂与有机染料在一定的溶剂中形成有色络合物 ,此络合物的消光值与捕收剂的浓度成比例关系 ,因而可用分光光度法测定捕收剂在煤表面的等温吸附量     

蛭石对稀土离子的吸附性能研究

研究了蛭石对稀土离子的吸附作用 ,结果表明 :蛭石具有较强的吸附性能 ,吸附速度较快 ,影响吸附的主要因素是 pH值 ,其吸附机理符合阳离子交换吸附形式 ;通对稀土原地浸矿尾液的处理 ,达到回收稀土的目的 ,可用于实际生产中低浓度稀土的回收     

凹凸棒石粘土干燥剂的制备与性能研究

本文就利用凹凸棒石粘土制作干燥剂的实验研究作一介绍，通过加入一种或多种改性剂，有效的改善了凹凸棒石粘土的吸湿性能，并且在加入粘结剂制成球形颗粒后仍然能保持较高的吸湿率，吸湿后不变形，具有较高的强度，成本低，无污染，能反复再生使用。     

Selective adsorption of p-chloronitrobenzene from aqueous mixture of p-chloronitrobenzene and o-chloronitrobenzene using HZSM-5 zeolite

The selective adsorption of p-chloronitrobenzene (p-CNB) using zeolite as the adsorbent from an aqueous mixture containing p-CNB and o-chloronitrobenzene (o-CNB) was investigated. The maximum adsorption amounts of p-CNB in HZSM-5 zeolite were found to be approximately 4 molecules per unit cell (mol/uc) at all adsorption temperatures investigated. The maximum adsorption amounts of o-CNB in HZSM-5 zeolite were, however, markedly lower than those of p-CNB at different adsorption temperatures. Diffusion results revealed that the diffusivity of p-CNB at 300K was about 100 times higher than that of o-CNB in HZSM-5 zeolite. The remarkable difference in the adsorption amounts and diffusivities between p-CNB and o-CNB resulted in separation factors of 463.6, 96.8 and 21.9 for p-CNB at 278, 300 and 323 K, respectively, indicating a selective adsorption of p-CNB in HZSM-5 zeolite from the aqueous mixture of p- and o-CNB.     

Activated charcoal and microflora in water treatment

Significant sanitation was achieved by using 0.5% activated charcoal in influent and effluent of a wastewater treatment plant. The drastic reduction in the microorganisms was confirmed for twelve tester strains, including gram-positives, gram-negatives, Candida albicans, Vahlkampfia avara, Leptospira biflexa and Trichomonas foetus. The removal of microflora correlates positively with the quality of the activated charcoal used. Once adsorbed, the bacteria could not be eluted by salt, alkalinization or citric acid. Diatomaceous earth also eliminated some of the microflora, but white clay (Bolus alba) and zinc dust are inefficient. The activated carbon may be reused several times after regeneration by heat (2 h at 160°C), but eventually a slight decrease in adsorbing capacity occurs.     

荧光指示剂吸附法测量柴油馏分芳烃含量

应用液体石油产品(汽、煤油)中的芳烃标准分析试验方法——荧光指示剂吸附法测量柴油馏分烃类族组成,考察了硅胶,洗脱剂以及空气压力对实验结果的影响,对分析条件进行优化,确保分析的重复性和准确性。