(The hydrophobic character of nonsulfide mineral surfaces as influenced by double-bond reaction of adsorbed unsaturated collector species)
The primary objective of this research is to improve the flotation efficiency of nonsulfide mineral systems by establishing the fundamental features of collector adsorption reactions and developing appropriate chemical control strategies. In-situ real-time spectroscopic measurements, microcalorimetry, and surface modification have been used to accomplish this goal. Using these techniques, measurements have been completed to establish important fundamental information on nonsulfide flotation systems. In this regard, an innovative in-situ FTIR spectroscopy procedure which can detect adsorption from very dilute collectors solutions (/approximately/5/times/10/sup /minus/7/ M) is being developed to simultaneously study collector adsorption kinetics, equilibrium collector adsorption density, and collector orientation in-situ. Few researchers have taken this approach, and none have applied this method to the analysis of flotation phenomena. 13 refs., 12 figs., 12 tabs.
- Research Organization:
- Utah Univ., Salt Lake City (USA). Dept. of Metallurgy
- DOE Contract Number:
- FG02-84ER13181
- OSTI ID:
- 6407087
- Report Number(s):
- DOE/ER/13181-3; ON: DE89009218
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
360600* -- Other Materials
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
ADSORPTION
ALKALINE EARTH METAL COMPOUNDS
CALCIUM COMPOUNDS
CALCIUM FLUORIDES
CALCIUM HALIDES
CARBOXYLIC ACIDS
CHEMICAL BONDS
CRYSTALS
DOCUMENT TYPES
ELECTRODES
FLOTATION
FLUORIDES
FLUORINE COMPOUNDS
FLUORITE
HALIDE MINERALS
HALIDES
HALOGEN COMPOUNDS
LANTHANUM COMPOUNDS
LANTHANUM FLUORIDES
MINERALS
MONOCARBOXYLIC ACIDS
OLEIC ACID
OPTICAL PROPERTIES
ORE PROCESSING
ORGANIC ACIDS
ORGANIC COMPOUNDS
PHYSICAL PROPERTIES
PROCESSING
PROGRESS REPORT
RARE EARTH COMPOUNDS
REFLECTIVITY
SEPARATION PROCESSES
SORPTION
SORPTIVE PROPERTIES
SPECTROSCOPY
SURFACE PROPERTIES