|
|
Creator | Title | Description | Subject | Date |
1 |
 | Miller, Jan D. | Selective flotation of iron oxide | The response of pure goethite and two natural iron ores to flotation with potassium octyl hydroxamate is presented. The ores contained 12.5% and 39.7% iron; concentrates containing 69.5% and 61.5% iron, respectively, were obtained with additions of 0.4 lb/ton hydroxamate. | Goethite; iron; flotation; iron oxide | 1967 |
2 |
 | 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 |
3 |
 | 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 |
4 |
 | Miller, Jan D. | Importance of bitumen viscosity in the hot-water processing of domestic tar sands | The 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 processing | 1983 |
5 |
 | Miller, Jan D. | Pilot-plant evaluation of a water insoluble hydroxamic acid collector for single stage flotation of Florida phosphate rock | Recent laboratory results have demonstrated that selective flotation of phosphate rock can be achieved in a single stage with improved separation efficiency when compared to the standard double float process. The new reagent chemistry is based on the use of a water insoluble alcoholic solution of ... | Phosphate rock; flotation; double float; separation | 2006 |
6 |
 | Miller, Jan D. | Fluoride activation in oleate flotation of collophanite | Fluoride activation has been evaluated by Hallimond tube flotation of collophanite in terms of fluoride concentration, conditioning time, pH, and temperature. The results reveal that efficient oleate flotation of collophanite can be achieved by fluoride activation. Experimental results of fluoride... | fluoride; oleate; collophanite; flotation; calcium; chemisorption | 1987 |
7 |
 | Miller, Jan D. | Bench scale flotation of sedimentary phosphate rock with hydroxamic acid collectors | It has been discovered that water insoluble alcoholic solutions of alkyl hydroxamic acids serve as selective collectors for the flotation of phosphate mineral resources. The effectiveness of the new collector chemistry has been demonstrated by the results from single stage bench scale flotation exp... | flotation; insoluble collectors; hydroxamic acid; alcohol; phosphate rock; high solids conditioning; particle size | 2002 |
8 |
 | Miller, Jan D. | Infrared spectroscopy for in-situ characterization of surface reactions | Infrared spectroscopy has been one of the most useful experimental techniques for the analysis of surface reactions in flotation systems, including surface alteration and surfactant adsorption reactions. With the advent of Fourier transform infrared (FTIR) spectrometers, many low-energy throughpu... | Reflection; flotation; measurements | 1989 |
9 |
 | Miller, Jan D. | Gold flotation from Colorado River sand with the air-sparged hydrocyclone | Pilot-scale tests indicate that effective concentration of fine gold from Colorado River sands can be achieved by flotation with the air-sparged hydrocyclone. The fine sands (55% -kOQ mesh and 0 01 opt *) from gravity concentration were processed with a 5-cm air-sparged hydrocyclone (capacity -1.0 t... | gold; hydrocyclones; sand; flotation | 1986 |
10 |
 | Miller, Jan D. | Flow phenomena and its impact on air-sparged hydrocyclone flotation of quartz | Fluid flow phenomena and therefore the flotation efficiency of air-sparged hydrocyclone (ASH) flotation are strongly dependent on operating and design variables such as air and slurry flow rates, underflow and overflow opening areas, percent solids of the feed, reagent levels, particle size and ASH... | quartz; flotation; hydrocyclones | 1995 |
11 |
 | Miller, Jan D. | Hydrophobic character of semisoluble salt minerals with oleate as collector | The effects of temperature, oxygen partial pressure, and solution chemistry can have a significant effect on the hydrophobic character of semisoluble salt minerals with adsorbed oleate. Measurements of bubble-attachment time and contact angle reveal the sensitivity of these hydrophobic surfaces to c... | flotation; solution; oleate | 1984 |
12 |
 | Miller, Jan D.; Nalaskowski, Jakub | Flotation chemistry and technology of nonsulfide minerals | The dimensions of nonsulfide flotation technology extend in many directions, as might be expected from the diversity of the mineral classes, which include soluble salt minerals (potash, borax, and trona), semisoluble salt minerals (phosphate minerals, fluorite, calcite, and barite), and insoluble ox... | flotation; insoluble collectors; Salt minerals; nonsulfide minerals | 2007 |