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General
- Potash (or carbonate
of potash) is an impure form of potassium carbonate (K2CO3)
mixed with other potassium salts.
- Muriate of Potash
potassium chloride (KCl), a refined red or greyish red, cubic,
crystalline compound that closely resembles common salt (sodium
chloride).
- Potash ore can be considered a soft rock.
- Potash is an
essential plant nutrient.
Production &
Process
- Potash production
provided late-18th and early-19th century settlers in North America a
way to obtain badly needed cash and credit as they cleared their wooded
land for crops.
- Flotation and
crystallisation are two processes used for the purification of KCl from
potash ores.
- Potash is extracted from buried ancient
evaporites by underground or solution mining.
- Potash is mined using two-and four-rotor
continuous boring machines.
Application & Technology
Market
-
The major share of the potash
produced in Saskatchewan goes for export. The US is the major consumer
with 52% of the total, another 43% goes to overseas markets and only a
mere 5% is used in Canada.
-
Potash prices are usually
negotiated between suppliers and consumers based on delivery contracts.
More than 50 % of
India's import of Potash is from Jordan and Israel, where it is
recovered from Dead Sea brine.
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