
In processu lixiviationis materiarum, secundum differentias in directionibus fluxus materiarum lixiviatarum et reagentum lixiviationis, tres processus lixiviationis distingui possunt.
1. Co-current Leaching
In co-vena leaching, materias colatur et reagentia in eandem partem fluunt (Figura 1). Haec methodus leachate cedere potest cum relativo argumento scopo componentibus et supremis sumptionem leaching reagentia requirit. Sed leaching celeritas eius tarda est. Diutius leaching tempus opus est ad magnum leaching rate.
2. Crucis - current Leaching
In crucis - vena leaching, materia ditata separatim colatur cum pluribus partibus de reagentia recentium leaching. Leachates ab unaquaque operatione leaching consecuta uniformiter ad processum subsequentem arcessitur (Figura II). Cross - current leaching features a relative ieiunium leaching celeritate et brevi leaching tempus, consequens in alta leaching rate. Attamen leachaetae volumen magnum est, cum reagentia residua cum magna attentione. Et consequenter, consumptio reagentiarum substantiale est, et contentum scopum componentium in leachate est humilis relative.
3. Counter - current Leaching
In contra - vena leaching, materia colatur et reagentia in contrarias partes moventur. Hoc est, materias infrequentes post varias leaching operationes cum recenti leachate incurrere, dum primigeniae materiae colatae leachatae contactum (Figura 3). Contra - vena leaching potest leachaeam cum magna contenti partium scopo producere et plenam uti reagentia in leachate residua, ita reducere consumptionem agentium leaching. Tamen celeritas leaching eius minor est quam crucis - vena leaching. Plures gradus leaching requiruntur ad excelsum leaching rate.
Percolatio lacus leaching ascisci co - current, crucis - current, aut contra - processus leaching current. Congere leaching et in - situ leaching plerumque uti processus cyclici cyclici leaching. Continuus commotus leaching plerumque co - vena leaching processum adhibet. Si crux aut vena aut contra - vena peractio adhibenda est, solidae - liquidae operationes inter singulas scenas adici debent. Batch - operatum commotum leaching plerumque co - vena leaching, sed crux - vena vel contra - vena leaching quoque applicari potest. Attamen solida - liquida separatio requiritur post singulas operationes diffusas, faciens operationem complexam et minus communiter in productione adhibendam. Percolatio leaching directe limpidam leachatam obtinere potest, dum slurry ab commota leaching subire debet solidam - liquidam separationem ad manifestam leachae vel dilutam slurriam, quae parvam particulas chalcitidis pro subsequenti processui obtinet.
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