Mining or in situ disintegration of hard material – In situ conversion of solid to fluid – Input and output wells
Patent
1983-03-11
1985-02-12
Novosad, Stephen J.
Mining or in situ disintegration of hard material
In situ conversion of solid to fluid
Input and output wells
299 5, E21B 4328
Patent
active
044987056
ABSTRACT:
An oxygenated lixiviant is transported down an injection pipe into the leach zone at the bottom of an injection pipe, the lixiviant leaches the ore and the pregnant lixiviant containing metal compounds is recovered through a recovery pipe. The metal compounds are separated from the lixiviant and the lixiviant is regenerated, reoxygenated and recycled. The pressure of the lixiviant at the downstream end of the injection pipe is substantially equal to the pressure of the lixiviant at the upstream end thereby permitting maximum oxygenation without any degassing.
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patent: 4358158 (1982-11-01), Showalter
Perry's Chemical Engineer's Handbook, Perry, Chilton, Kirkpatrick, 4th Ed., 1963, pp. 5-19, 5-20.
Anderson et al., Gas Phase Controlled Mass Transfer in Two Phase Annular Horizontal Flow, A.I.Ch.E. Journal, Sep. 1964, pp. 640-645.
McCabe et al., Unit Operations of Chemical Engineering (3d Ed.) 1976, pp. 84-117.
DelSignore Mark J.
L'Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation de
Novosad Stephen J.
Robinson, Jr. Lee C.
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