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To increase the amount of a dissolved substance by evaporation.
(mining engineering)
To separate ore or metal from its containing rock or earth.
The clean product recovered in froth flotation or other methods of mineral separation.



(in mining), a product of mineral dressing that is more suitable for use or further processing than the initial raw material. In most cases, direct use of the extracted rock or its metallurgical or chemical processing is economically unfeasible and sometimes even technically impossible. A concentrate may have a high content of a valuable component (such as a metal), a small quantity of impurities (for example, iron and titanium in glass sand), or the required size (graded anthracite).

The quality of concentrates is regulated by government standards or by technical specifications that determine the size and the content of valuable components, undesirable impurities, and moisture. For example, concentrate must contain Pb > 70 percent, SiO2 < 2 percent, Cu < 1.5 percent, Zn < 2.5 percent, and Fe < 8 percent for lead hearth smelting and Pb > 30 percent, Cu < 4 percent, and Zn < 12 percent for shaft smelting.

A distinction is made among preconcentrate (coarse or crude concentrate), which is subjected to further dressing; bulk concentrate, which contains several valuable components; and final concentrate. In most cases, concentrate is a raw material for metallurgical, chemical, and other production processes.

References in periodicals archive ?
will introduce single-dose Evolve Bleach Crystal Pacs as a concentrated formula to achieve whiter laundry through the use of premeasured packs.
The intensive therapy herbal shampoo is the brand's most concentrated formula, with double the amount of the proprietary blend of ingredients called herbal complex Bioxsine, a combination of botanical extracts with minerals and essential fatty acids.
The concentrated formula helps women store more fat in their breast, tightens skin and provides moisture and hydration benefits.
The concentrated formula is available in a variety of gallon sizes for flexible diluting options.
The concentrated formula helps break down hyper pigmentation for a brighter, more luminous complexion, while added moisturisers help replenish and revitalise skin.
The toothpaste uses a concentrated formula that polishes teeth with an ingredient similar to what dentists use, said the CPG giant.
The new 3X concentrated version of our Fiber Cleansing Formula with Scotchgard provides consumers with the cleaning results and protection power they expect with the added convenience of a concentrated formula," says Jim Krzeminski, executive vice president of product development, sales and marketing.
99, (right) is a super concentrated formula that works to counteract the damage caused by styling and chemical treatments.
The highly concentrated formula works to battle "hair raising" problem areas while strengthening damaged strands.
True-Dose's product line on display at NACDS will consist of formulations for Joint Care (a highly concentrated formula of glucosamine, chondroitin and MSM); Wellness (key nutrients and essential antioxidants to eliminate free radicals); Skin & Coat (a unique blend of Omega 3 & 6, Biotin, and other essential nutrients to support healthy skin and coat); Calming (a blend of natural and botanical ingredients to help maintain normal disposition for stressful situations) and a dental cleaning kit.
With the recent launch of Downy Simple Pleasures,[TM] Downy delivered breakthrough innovation of naturally inspired scent experiences with enhanced customer profit in a concentrated formula.
Schumann and her team of researchers in Germany, The Solution is an ultra concentrated formula that helps treat and heal traumatized or infected areas of the skin, speeding recovery and reducing the possibility of scarring.

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