Evaluation of particle deposition in aqueous solutions by the quartz crystal microbalance method

Gotoh, Kunihito; Nakata, Yumiko; Tagawa, Mieko

doi:10.1016/j.colsurfa.2005.07.015

Cited by 14 publications

(13 citation statements)

References 21 publications

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“…[31][32][33][34][35][36][37][38] The basic principle of the technique relies on monitoring the resonance frequency and dissipation of a piezoelectric quartz crystal sensor. The application of QCM-D as an ultrasensitive mass balance originates from the work of Sauerbrey, 39 who established an empirical relationship between the added (deposited) mass to the sensor and the resonance frequency shift of the sensor given by Eq.…”

Section: Qcm-d Measurement Principlementioning

confidence: 99%

Role of Caustic Addition in Bitumen–Clay Interactions

et al. 2015

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Coating of bitumen by clays, known as slime coating is detrimental to bitumen recovery from oil sands using the warm slurry extraction process. Sodium hydroxide (caustic) is added to the extraction process to balance many competing processing challenges which include undesirable slime coating. The current research aims at understanding the role of caustic addition in controlling interactions of bitumen with various types of model clays. The interaction potential was studied by quartz crystal microbalance with dissipation monitoring (QCM-D). After confirming the slime coating potential of montmorillonite clays on bitumen in the presence of calcium ions, interaction of kaolinite and illite with bitumen was studied. To make our study more closely related to industrial applications, tailings water from bitumen extraction tests using Denver flotation cell at different caustic additions was used. At caustic dosage up to 0.5 wt.% of oil sands ore, a negligible coating of kaolinite on the bitumen was determined. However, at lower level of caustic addition illite was shown to attach to the bitumen, with the interaction potential decreasing with increasing caustic dosage. Increasing concentration of humic acids as a result of increasing caustic dosage was identified to limit the interaction potential of illite with bitumen.2 This fundamental study clearly shows that the critical role of caustics in modulating interactions of clays with bitumen depends on the type of clays, guiding the multi-billion dollar oil sands industry to identify clay type as a key operational variable.

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Section: Qcm-d Measurement Principlementioning

confidence: 99%

Role of Caustic Addition in Bitumen–Clay Interactions

et al. 2015

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“…Recent studies on the mechanism of solid soil removal are related to the detachment process analyzed by Monte Carlo simulations 33 and by the quartz crystal microbalance technique 34 .…”

Section: Introductionmentioning

confidence: 99%

Analysis of Cleaning Process for Several Kinds of Soil by Probability Density Functional Method

2017

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“…Polyethylene, nylon 6, and cellulose acetate substrates were prepared on QCM gold electrodes by spin-coating 14,15 , and arachidic acid was deposited onto the substrates as a model oily soil using the LangmuirBlodgett LB technique 16 . The QCM was subsequently cleaned using ultrasound in aqueous detergent solutions.…”

Section: Quartz Crystal Microbalance Techniquesmentioning

confidence: 99%

Evaluation of particle deposition in aqueous solutions by the quartz crystal microbalance method

Cited by 14 publications

References 21 publications

Role of Caustic Addition in Bitumen–Clay Interactions

Role of Caustic Addition in Bitumen–Clay Interactions

Analysis of Cleaning Process for Several Kinds of Soil by Probability Density Functional Method

Experimental Analysis of Detergency Phenomena and Investigation of a Next-generation Detergency System

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