2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17
Batch extraction , txoj kev yooj yim tshaj plaws thiab feem ntau siv, muaj rho tawm lub solute los ntawm ib txheej ntawm ib qho immiscible mus rau lwm yam los ntawm kev co ob txheej kom txog thaum sib npaug, tom qab uas cov txheej raug tso cai rau kev sib tw ua ntej sampling.
Dhau li ntawd, dab tsi yog qhov nruam extraction?
Txhais ntawm nruam extraction . Kev rho tawm (leaching) ntawm cov khib nyiab los ntawm cov kua uas cyclescontinuously countercurrent rau cov khoom nws yog depleting ntawm tus nqi nrhiav (piv txwv li, kub nyob rau hauv cyanide txheej txheem), lub cev xeeb tub liquidat ib tug tej theem yog stripped ntawm tus nqi thiab xa rov qab raws li barrensolution. Ref: Ploog, 1.
ob hom kua kua extraction yog dab tsi? Peb feem ntau hom ntawm rho tawm yog: ua kua / ua kua , ua kua / khoom, andacid / puag (tseem hu ua chemically active rho tawm ) Kas fes thiab tshuaj yej piv txwv yog ob qho tib si ua kua / khoom yam nyob rau hauv uas ib tug compound (caffeine) cais tawm ntawm cov khoom sib tov los ntawm kev siv a kua extraction kuab tshuaj (dej).
Hauv qhov no, hom kev rho tawm yog dab tsi?
Muaj ob peb hom kev rho tawm , suav nrog: kua-kua rho tawm , solid-phase rho tawm , thiab acid-base rho tawm . Hauv kua-kua rho tawm cov tebchaw sib cais raws li lawv cov txheeb ze solubility nyob rau hauv ob qhov sib txawv immiscible kua theem.
Lub hauv paus ntsiab lus ntawm cov kuab tshuaj extraction yog dab tsi?
Cov lub hauv paus ntsiab lus koom nrog hauv txoj kev isthat ib solute faib nws tus kheej nyob rau hauv ib tug taag ratio ntawm twoimmisicible cov kuab tshuaj , cue ntawm uas feem ntau yog dej thiab lwm yam organic hnyav . Cov hlau rho tawm systems tau muab faib ua ob hom nyob rau hauv lub hauv paus ntawm thenature ntawm lub rho tawm - muaj peev xwm.
Pom zoo:
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