Microgas dispersion for fine-coal cleaning. Technical progress report, September 1, 1980-February 28, 1981
The purpose of this project is to develop a method of cleaning fine coal by flotation using very small microbubbles now known as Colloidal Gas Aphrons (CGA) and previously known as Microgas Dispersions (MGD). It was thought that MGD was not sufficiently descriptive of the nature of the small bubbles, and hence, the change was made. The objectives of the past six months of investigation were as follows: (1) a fundamental study of the properties of CGA, which involved (i) a study of the stability of the bubbles generated with several frothers that are currently used in the mineral industry, (ii) a study of the charge on the bubbles, and (iii) a microscopic inspection of the bubbles during flotation; (2) a preliminary investigation of the flotation characteristics of coal; and (3) construction of an automatic batch flotation machine, similar to the one described by Miller (1980).
- Research Organization:
- Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States)
- DOE Contract Number:
- FG22-80PC30234
- OSTI ID:
- 6559266
- Report Number(s):
- DOE/PC/30234-T1
- Country of Publication:
- United States
- Language:
- English
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