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Creator | Title | Description | Subject | Date |
1 |
 | Miller, Jan D. | Agglomeration and magnetic deinking for office paper | Magnet deinking of office paper (OP) is a promising technology for the production of high quality secondary fiber. The technique is possible because a significant portion of the toner in OP furnish has a magnetic character. Toner magnetic susceptibility can vary from weakly paramagnetic to ferroma... | Wastepaper; Magnetic deinking; Toner; Magnetic susceptibility | 2000 |
2 |
 | Pershing, David W. | Biomass combustion: relationship between pollutant formation and fuel composition | A 65-kW refractory-walled reactor was used to study biomass combustion under conditions typical of the suspension-burning phase in a spreader-stoker-fired boiler. Isothermal combustion data and nitric oxide (NO) emission rates were obtained as a function of temperature, local oxygen concentration, ... | Combustion; Emissions; Energy; Environmental control; Fuels; Pyrolysis; Biomass fuel; Particulates | 1989 |
3 |
 | Pershing, David W. | Control of NOx and particulate emissions from spreader-stokers fired with hogged wood | The formation and emission of nitrogen oxides and particulate carry-over were studied from spreader-stoker combustion of hogged Douglas-fir, with a focus on optimizing the combustion conditions in each of the two distinct combustion zones, the bed phase and the suspension phase local oxygen availabi... | Chemical analysis; Combustion; Emission; Engineering; Environmental control; Fuels; Nitrogen compounds; Particulates; NOx; Hogged wood | 1987 |
4 |
 | Miller, Jan D. | Effect of ink types and printing processes on flotation deinking | Examination of ink types reveals that newsprint oil-based offset-cold and offset-heat inks contain substantial oil (45 to 60%) and resin (5 to 35%), water-based ink contains water (40%) and resin (polystyrene, 30%). These inks are liquids with densities around 1 g/cm3, having various viscosities... | Toners; inks; photocopying; laser printing; flotation; deinking; recycling; office waste; hyrdophobicity | 1997 |
5 |
 | Miller, Jan D. | Effect of pH on pulping and flotation of mixed office wastepaper | The effect of pulping reagents on the deinking flotation of laser-printed wastepaper was investigated with regard to the removal efficiency of toner and mineral filler particles at different pH values. These results show that caustic pulping causes the toner to be released from the fibres as larger... | Wastepaper; deinking; pH values; pulp production processes | 1999 |
6 |
 | Miller, Jan D. | Further considerations of magnetic deinking for wastepaper recycling mills | Magnetic de-inking has been shown to be an efficient process for the removal of certain toner particles from mixed office waste (MOW) furnishes. It is possible to achieve a dirt removal of 96% with the WHIMS (wet high intensity magnetic separator) if all toner particles present in the furnish are at... | Magnetic deinking; Paper pulp; Wastepaper; Mixed office waste; (MOW) | 1998 |
7 |
 | Miller, Jan D. | Hydrophobicity and elemental composition of laser-printed toner films | Laser-printed toner films on a polymer support were treated with alkaline (NaOH) aqueous solutions at elevated temperature (80-85° C). These toner films were examined with a sessile-drop contact-angle measurement technique in order to establish the hydrophobicity of the toner surface. Also, X-ray p... | contact angle; deinking flotation; hydrophobicity; ink; recovered fibers; toners; waste papers; wettabiIity | 1996 |
8 |
 | Miller, Jan D. | Interaction forces between toner surfaces | The 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; PMMA | 2000 |
9 |
 | Miller, Jan D. | Magnetic separation for wastepaper recycle mills | An alternative approach to the conventional washing and flotation techniques for de-inking of mixed office waste (MOW) is magnetic separation. The use of magnetic de-inking has great potential to improve the efficiency of ink removal due to the magnetic content of toners. It is shown experimen... | Deinking; Paper pulp; Wastepaper; Magnetic separation | 1997 |
10 |
 | Miller, Jan D. | Multiphase flow characteristics of gas sparged hydrocyclone flotation deinking | A new high-efficiency technology has been developed for flotation deinking of various wastepaper grades. The GSC gas sparged hydrocyclone is a centrifugal device that operates at consistencies of 1 to 3 percent and uses conventional flotation chemistry. Research and development efforts have continue... | Wastepaper; Deinking; Gas sparged hydrocyclone flotation deinking | 1993 |
11 |
 | Miller, Jan D.; Lin, Chen-Luh; Yu, Qiang | PC image-based analysis system for particle characterization of deinked pulps | A low cost PC image-based particle analysis system is being developed for particle characterization of deinked pulps at the University of Utah. Initial R&D efforts of such an image analysis system were made for on-line particle characterization in the mineral processing field but now it has been fo... | Deinking; paper pulp; wastepaper; image-based particle analysis | 1993 |
12 |
 | Miller, Jan D. | Thermogravimetric/Mass spectrometric (TG/MS) characterization of toner particles from photocopied wastepaper and the impact of these features on flotation deinking | Flotation deinking of photocopies from office waste is known to be much more difficult than the flotation deinking of newsprint. In this regard, research has been undertaken to better understand the phenomena which account for the poor efficiency in the flotation deinking of such office waste. Durin... | Photocopied paper; recycling; deinking; flotation; thermal decomposition; thermogravimetry; Mass spectrometry; differential scanning calorimeter; toner particles | 1995 |
13 |
 | Miller, Jan D. | Toner ink particle morphology in air-sparged hydrocyclone flotation deinking | A series of pulping and flotation deinking tests were performed using a pilot-scale air-sparged hydrocyclone (ASH) flotation cell and a toner ink printed furnish. Microscopy studies indicate ink particles in both the flotation accepts and rejects are relatively flat. Many of the ink particles ap... | Elongation; clone; particles | 1996 |