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- W2275450057 abstract "During the first quarter of the project, from February 22, 1993 to March 31, 1993, the major work is to conduct project work plan and to organize the research term in order to successfully conduct this fossil resin refining project. Under a previous DOE-funded program, University of Utah and APT conducted a serious pilot-plant tests of selective flotation of fossil resin from Wasatch plateau coal (both UPL coal and CO-OP coal mines) of south central Utah. About 200 lbs high grade fossil resin flotation concentrate (approximate 75% resin content) was generated from those pilot-plant flotation tests. The resin flotation concentrate were naturally dried, sampled and storied into one kilo plastic bag for future use. The ash and moisture content of the resin concentrate is found to be 1.23% and 1.03 by weight respectively. As concluded from our previous research project, it was found that macroscopic fossil resin is friable and can be easily liberated from other coal macerals. Consequently the fossil resin particles tend to concentrate into the fine sizes during size reduction and coal preparation. Because of this property, the fine resinous coal streams in a coal preparation plant contain more than 6% hexane-soluble fossil resin, even when themore » run-of-mine coal contains only 3% fossil resin. Thus, the fossil resin flotation concentrate contains more fine resin particles ({minus}200 mesh). Under microscopic examination, it is also found that a notable amount of fine coal particle was still floated into the froth concentrate along with fossil resin particles.« less" @default.
- W2275450057 created "2016-06-24" @default.
- W2275450057 creator A5044821586 @default.
- W2275450057 date "1993-04-30" @default.
- W2275450057 modified "2023-09-24" @default.
- W2275450057 title "Refining of fossil resin flotation concentrate from western coal. First quarterly final report, February 23, 1993--March 31, 1993" @default.
- W2275450057 doi "https://doi.org/10.2172/10151465" @default.
- W2275450057 hasPublicationYear "1993" @default.
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