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CreatorTitleDescriptionSubjectDate
1 Miller, Jan D.Importance of bitumen viscosity in the hot-water processing of domestic tar sandsThe separation efficiency of the hot water digestion-flotation technique used for bitumen recovery from various domestic tar sands was evaluated. Bitumen viscosity was found to be the most important tar sand property in determining the success of the bitumen separation. Bitumen viscosity of the tar ...Tar sand; Bitumen viscosity; Flotation; Hot-water processing1983
2 Miller, Jan D.Effect of feed source in the hot water processing of Utah tar sandThe processing strategy for the effective separation of bitumen from low grade (K.10 weight percent bitumen) Utah tar sands by a hot water process differs significantly from that used for the processing of high grade (> 10 weight percent bitumen) Utah tar sands. Excellent separations (coefficient o...Tar sand; Utah; Bitumen; Hot water separation; Froth flotation1980
3 Miller, Jan D.Study of particle-bubble interaction using atomic force microscopy: current possibilities and challengesStudy of interaction forces between mineral particles and air bubbles is a key to understanding flotation processes. Measurement of such interaction forces has only recently been made possible with the introduction of the atomic force microscope (AFM) and the colloidal probe technique. Using AFM, in...Particle-bubble interaction; Atomic Force Microscopy (AFM); Hydrophobic force; Contact angle; Hydrodynamic force2002
4 Miller, Jan D.Separation of bitumen from Utah tar sands by a hot water digestion-flotation techniqueTar sand deposits in the state of Utah contain more than 25 billion bbl of in-place bitumen. Although 30 times smaller than the well-known Athabasca tar sands, Utah tar sands do represent a significant domestic energy resource comparable to the national crude oil reserves (31.3 billion bbl). Based ...Tar sand; Utah; Bitumen; Hot water separation; Froth flotation1978
5 Rajamani, RajAdvances in discrete element method application to grinding millsDiscrete element method (DEM) has made significant impact in the design and operation of grinding mills. The internal charge motion of grinding balls and ore can be readily examined. As a result, this method enables one to design and examine mill internals via simulation. This manuscript details es...2014-01-01
6 Miller, Jan D.Atomic force microscopy investigation of interaction forces between polyethylene and asphaltene surfacesMany petroleum-derived asphalts used for road construction exhibit poor rheological properties. These properties of asphalt can be improved by addition of various polymer fillers to the asphalt blend. Recycled polyolefines, especially polyethylene and polypropylene have been used as the asphalt mo...Asphalt; Rheology; Polyolefins2006
7 Miller, Jan D.Interaction forces between ink particles, cellulose fibers and mineral fillers as determined by AFMRecycling of wastepaper is an important industrial activity for the conservation of our natural resources. Wastepaper is mostly generated from newspaper and office waste (from photocopiers and laser printers) [1]. One important step in wastepaper recycling is the separation of ink from cellulose...Solution; Wastepaper; Chemistry1996
8 Miller, Jan D.Influence of surfactants on interaction forces between polyethylene surfaces in a hydrocarbon solventThe polyolefins, mainly polyethylene and polypropylene particles, are used as an active filler material in polymer-polymer blends and are being used for the modification of asphalts to provide for high-load, low-maintenance road construction. The stability of prepared blends depends on the interact...Surfactants; Asphalt; Polymer; Polyolefins2003
9 Miller, Jan D.Significance of electrokinetic characterization for interpreting interfacial phenomena at planar, macroscopic interfacesStreaming potential measurements provide valuable information for the validation and interpretation of interfacial phenomena that occur at flat macroscopic surfaces. Planar substrates have been extensively used for the interpretation of events, which occur at particulate surfaces; however, these fla...Interfacial phenomena; Surface charge2005
10 Miller, Jan D.Anisotropic character of talc surfaces as revealed by streaming potential measurements, atomic force microscopy, and molecular dynamics simulationsA study of the interfacial properties of the basal plane and the edge surfaces of talc is described in this paper. The isoelectric-point measured at the two different crystallographic planes by the streaming potential method was found to be similar and exists at about pH 3.0. In the case of the edg...Streaming potential; Scanning electron microscope; Atomic force microscope2006
11 Miller, Jan D.Tar sand pretreatment with diluentImportant aspects of kerosene penetration into tar sand have been investigated. The natural tar sand porosity was measured and used to analyze the performance of the hot water process. Subsequently, pretreatment experiments, using 20-kg tar sand samples (Asphalt Ridge and Whiterocks, Utah) and ker...Tar sand; Kerosene; Porosity; Temperature1993
12 Miller, Jan D.Anisotropic character of talc surfaces as revealed by streaming potential measurements, atomic force microscopy, molecular dynamics simulations and contact angle measurementsA study of the interfacial properties of the basal plane and the edge surfaces of talc is described in this paper. The isoelectric points measured at two different crystallographic surfaces by the streaming potential method were found to be similar and exist at about pH 3.0. In the case of the edge...Talc; Interfacial properties; Hydration; Atomic force microscopy; Molecular dynamics simulations; Edge surface; Basal plane2007
13 Miller, Jan D.Characterization of spherical alumina particles obtained by melting in a hydrogen-oxygen flameSpherical oxide particles can be used as mineral fillers, paint pigments, polishing materials and catalysts. They can be prepared using various techniques involving precipitation and spray drying. Melting of particles in a high-temperature flame is a simple technique which produces particles with ...Alumina; Oxides; Hydrogen-oxygen flame2003
14 Miller, Jan D.; Nalaskowski, JakubInteraction forces between silica surfaces in aqueous solutions of poly(ethylene oxide)sAn understanding of forces responsible for the stability of dispersions of colloidal particles when interacting with each other in aqueous solutions is of great interest academically and industrially. When water-soluble polymers are adsorbed onto colloidal particles, various effects on the stabil...Water-soluble polymers; Colloidal particles; Interaction forces2003
15 Miller, Jan D.; Lin, Chen-LuhOn-line washability analysis for the control of coarse coal cleaning circuitsIn view of the success of recent laboratory studies using X-ray computed tomography (CT) to determine coal washability and with the availability of high-speed CT systems, it now seems possible to design an on-stream washability system for the control of coarse coal-cleaning circuits. Design features...On-stream washability; CT analyzer; Coal washability1995
16 Miller, Jan D.Interaction forces between toner surfacesThe interaction of toner particles in aqueous solution is of interest with regard to both fundamental and practical aspects of de-inking processes. It has been established for the toner studied that the toner polymeric resin, that is, the block copolymer styrene-methyl methacrylate, more specifical...Interaction forces; toner surfaces; PMMA2000
17 Miller, Jan D.Flotation behavior of digested Asphalt Ridge tar sandThe hot water process for Utah tar sands differs significantly from that used for Canadian tar sands due to inherent differences in respective bitumen viscosities and the nature of bitumen-sand association. These differences have led to the identification of certain design criteria necessary to ac...Tar sand; Utah; Bitumen; Hot water separation; Froth flotation1981
18 Rajamani, RajOnline SAG mill pulse measurement and optimization semi-annual technical progress reportThe grinding efficiency of semi autogenous milling or ball milling depends on the tumbling motion of the total charge within the mill. Utilization of this tumbling motion for efficient breakage of particles depends on the conditions inside the mill. However, any kind of monitoring device to measure...2006
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