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recoveries of minerals increase. However, the increment rate of kaolinite is significantly lower than that of diaspore. In the low surfactant concentration range, the cationic surfactants adsorb readily... with CTAC on diaspore than on kaolinite in the same solution concentration. The results also indicate that the chain length of cationic surfactants has a greater influence on the adsorption......
of scanning electron microscopy and X-ray diffractometry. The effects of salinity and the ratio of surfactants to cosurfactants on the phase behavior were discussed. The results indicate that the particles have narrow size distribution (20-50 nm). The optimum conditions are as follows: the mass ratio of surfactants to cosurfactants is 2∶1, the salinity is the mixture of 0.6 mol/L Fe3+ and 0.3 mol/L Co2......
; 文章编号:1672-7207(2007)01-0060-05 Influence of surfactants on leaching of phosphate ore with Acidithiobacillus thiooxidans GONG Wen-qi, ZHANG Xiao-zheng, LIU... the leaching of phosphate ore with sulfuric acid produced by the oxidation of reductive sulfur with Acidithiobacillus, different types of Tween surfactants were used to promote the interaction between......
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Study on Friction Reducing and Anti-wear of CaCO3 Nanoparticles as Additives in Lubricating Oils GU Cai-xiang1,WANG Ren-bin1,GU Zhou-ming1 (1.Shanghai Maritime University, Shanghai, China) 摘要:This paper has insepected the size and the structure of the calcium carbonate (CaCO3) particles by adopting X-ray diffraction and transmission electron microscope (TEM). The suitable surfactants have been......
for templating the pore structure of samples. A bimodal pore structure can be controlled using PEG6000 and PEG20000 surfactants simultaneously during the preparation. The rate constant of benzene......
synthesized by a facile solvothermal method at 160°C for 12 h in the absence of surfactants or templates via a crystal transformation route. Scanning electron microscopy (SEM) results demonstrate......
distribution of a carbon nanotubes(CNTs)-based modifying additive to construction materials in an aqueous medium. This problem was solved herein by using surfactants and ultrasound. The sonication......
as the starting materials and macromolecule surfactants served as the templates.The morphologies phase and optical properties of them are characterized by X-ray diffraction (XRD),scanning electron......
magnetite fractions on pentlandite surfaces. This was achieved through adjustment of slurry pH and addition of surfactants. The results showed that at pH 8.8 with the addition of 100 g/t sodium... that, in the presence of surfactants the total interaction energy between magnetite and pentlandite became stronger than that between magnetite and serpentine. This enabled the selective adhesion of magnetite......
