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a. In mineral leaching, reconstitution of barren leach solution after it
has completed its chemical attack on mineral and its values have been
removed. The regeneration of ion exchange resins and activated carbons by
the removal of elements or compounds from extraction sites on the resins
by special eluants. Pryor, 3
b. A reversing heat exchanger for preheating combustion air (and gaseous
fuels) from waste heat of the exhaust gases. Van Vlack
Source:
Dictionary of Mining, Mineral, and Related Terms
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