ʻano hoʻoheheʻe ʻia
ʻO ke ʻano o ka hoʻohana ʻana i nā mea hoʻoheheʻe organik e unuhi a hoʻokaʻawale i ka mea i unuhi ʻia mai kahi ʻano wai wai immiscible i kapa ʻia ʻo organic solvent liquid-liquid extraction method, abbreviated as solvent extraction method. He kaʻina hoʻoili nui ia e hoʻololi ai i nā mea mai kekahi pae wai i kekahi.
Ua hoʻohana mua ʻia ka hoʻoheheʻe solvent i ka ʻoihana petrochemical, kemika kūlohelohe, kemika lāʻau lapaʻau a me ke kemika analytical. Eia nō naʻe, i nā makahiki he 40 i hala iho nei, ma muli o ka hoʻomohala ʻana o ka ʻepekema atomic ikehu a me ka ʻenehana, ka pono o nā mea ultrapure a me ka trace element production, solvent extraction ua hoʻomohala nui ʻia i ka ʻoihana wahie nuklea, metallurgy rare a me nā ʻoihana ʻē aʻe.
Ke hoʻohālikelike ʻia me nā ʻano hoʻokaʻawale e like me ka graded precipitation, graded crystallization, a me ka hoʻololi ʻana i ka ion, ʻo ka solvent extraction he ʻano o nā pono e like me ka hopena hoʻokaʻawale maikaʻi, ka mana hana nui, ʻoluʻolu no ka hana wikiwiki a hoʻomau, a maʻalahi hoʻi e hoʻokō i ka mana aunoa. No laila, ua lilo ia i kumu nui no ka hoʻokaʻawale ʻana i nā ʻāina laha ʻole.
ʻO nā mea hoʻokaʻawale o ke ʻano hoʻoheheʻe solvent me ka hui ʻana i ka pahu hoʻomaʻamaʻa, centrifugal extractor, a me nā mea ʻē aʻe. hōʻike ʻia e nā esters phosphate neutral e like me TBP a me P350. He kiʻekiʻe ka viscosity a me ka nui o kēia mau extractants, e paʻakikī iā lākou e hoʻokaʻawale i ka wai. Hoʻohui pinepine ʻia a hoʻohana hou ʻia me nā mea hoʻoheheʻe e like me ke ʻaila.
Hiki ke hoʻokaʻawale ʻia ke kaʻina hana unuhi i ʻekolu mau ʻanuʻu nui: ka unuhi ʻana, ka holoi ʻana, a me ka hoʻihoʻi ʻana. ʻO nā mea waiwai minerala no ka unuhi ʻana i nā metala honua laha ʻole a me nā mea i hoʻopuehu ʻia.
Ka manawa hoʻouna: Apr-20-2023