Dehydration process

Details Dehydration process Dehydration process

1978-02-24

1979-12-18

Vertiz, O. R.

Chemistry of inorganic compounds

Boron or compound thereof

Oxygen containing

423421, 423553, 423554, 423659, 159 1S, 23295S, 23302T, 23304, B01D 100, C01B 1512, C01D 1506, C01D 1700

Patent

active

041794931

ABSTRACT:
Disclosed is a process for the production of partially dehydrated or anhydrous salts from higher hydrates of the same salt, utilizing solar energy. Hydrated salts which have an increasing solubility with an increase of temperature, possessing a transition temperature from the existing high hydrated form to the desired one in the range of between about 30.degree. C. to about 100.degree. C. are partially or completely dehydrated in a solar pond having a non-convecting characteristic. Examples of salts produced according to the present invention are: anhydrous sodium sulfate from sodium sulfate decahydrate, magnesium sulfate monohydrate from magnesium sulfate heptahydrate, sodium carbonate monohydrate from sodium carbonate decahydrate and sodium borate pentahydrate from sodium borate decahydrate.

REFERENCES:
patent: 2592139 (1952-04-01), Hegan
Weinberger, H. "The Physics of the Solar Pond" Solar Energy vol. VIII, #2 1964 pp. 45-56.

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