منابع مشابه
Free gold recovery by coal-oil agglomeration
Environmental protection has become the focus of world-wide research in the gold mining industry and favours the development of environmentaly sound processes, such as the Coal Gold Agglomeration (CGA) process, which is an alternative to existing gold processing methods, such as cyanidation and mercury amalgamation. The CGA process was developed and patented by the British Petroleum (BP) resear...
متن کاملMethods of Improving Oil Agglomeration
A simple thermodynamic analysis suggests that oil can spontaneously displace water from coal’s surface if the coal particle has a water contact angle greater than 90°. However, the clean coal products obtained from laboratory-scale dewatering-by-displacement (DbD) test work assayed moistures substantially higher than expected. These high moisture contents were attributed to the formation of wat...
متن کاملSpherical Oil Agglomeration (SOA)/ Colloidal Gas Aphrons (CGA) Flotation
The main aim of this experimental work was to develop a separation process using micro- bubbles less than 100 µm in diameter. Micro-agglomerates were produced using 10kg crude oil/tone feed coal treated compared to 250 kg/tone feed coal treated for conventional spherical oil agglomeration. These micro-agglomerates were separated from the unagglomerated minerals by micro-bubble flotation. Colloi...
متن کاملOil agglomeration of weakly hydrophobic coals and coal/pyrite mixtures
Fine particle suspensions of various materials in water were agglomerated with heptane in a modified blender to determine the agglomeration characteristics of the solids. The materials included Upper Freeport coal, oxidized Upper Freeport coal, two batches of Illinois No. 6 coal, graphite, and iron pyrite. The response of these materials to oil agglomeration varied over a wide range and seemed ...
متن کاملDevelopment of a Gas-promoted Oil Agglomeration Process
Further agglomeration tests were conducted in a series of tests designed todetermine the effects of various parameters on the size and structure of the agglomeratesformed, the rate of agglomeration, coal recovery, and ash rejection. For this series oftests, finely ground Pittsburgh No. 8 coal has been agglomerated with i-octane in a closedmixing system with a controlled amou...
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ژورنال
عنوان ژورنال: Shigen-to-Sozai
سال: 1991
ISSN: 0916-1740,1880-6244
DOI: 10.2473/shigentosozai.107.740