Waa maxay faa'iidada sabbaynta?

Sabaynta, oo sidoo kale loo yaqaan sabbeynta maraqa, waa farsamada farsamaynta macdanta oo kala saarta macdanta qiimaha leh iyo macdanta gangue ee gaaska-dareere-adag ee interface-ka iyada oo ka faa'iideysanaysa kala duwanaanshaha sifooyinka dusha sare ee macdanta kala duwan. Waxa kale oo loo tixraacaa sida "kala-soocidda wejiga." Hannaan kasta oo si toos ah ama si dadban u isticmaala weji-is-dhexgalka si loo kala saaro qaybaha macdanta ee ku salaysan kala duwanaanshaha sifooyinka wejigooda waxaa loo yaqaan sabbeynta.

Guryaha macdanta dusha sare waxay tixraacaan sifooyinka jidhka iyo kiimikaad ee qaybaha macdanta, sida qoynta dusha sare, guryaha korantada oogada, noocyada curaarta kiimikada ee atamka dusha sare, saturation, iyo falcelinta. Qaybaha kala duwan ee macdanta ayaa soo bandhigaya sifooyin dusha sare ah oo kala duwan, iyo iyada oo la adeegsanayo kala duwanaanshahan iyada oo la kaashanayo isdhexgalka wajiga, kala-soocidda macdanta iyo kobcinta ayaa la gaari karaa. Sidaa darteed, habka sabbeynta waxay ku lug leedahay isdhexgalka gaasta, dareeraha, iyo wejiyada adag ee isdhexgalka.

Waxyaabaha dusha sare ee macdanta ah waxa lagu beddeli karaa faragelin macmal ah si loo kordhiyo faraqa u dhexeeya macdanta qiimaha leh iyo macdanta gangue, taas oo fududaynaysa kala soocitaankooda. Sabbaynta, sabbaynta sabbaynta ayaa caadi ahaan loo isticmaalaa in si macmal ah wax looga beddelo guryaha macdanta, kor loogu qaado faraqa u dhexeeya macdanta, iyo in la kordhiyo ama la yareeyo hydrophobicity ee dusha macdanta. Tani waxay u oggolaaneysaa hagaajinta iyo xakamaynta dabeecadda sabbeynta macdanta si loo gaaro natiijooyin kala duwan oo wanaagsan. Sidaa awgeed, adeegsiga iyo horumarinta tignoolajiyada sabbaynta waxay si dhow ugu xidhan yihiin isticmaalka reagen-yaasha sabbaynta.

Si ka duwan sida cabbirrada jireed sida cufnaanta iyo u nugulnaanta magnetic, kuwaas oo ay adag tahay in la beddelo, sifooyinka dusha sare ee walxaha macdanta ayaa si sahlan loo maamuli karaa iyada oo loo marayo faragelinta aadanaha si loo abuuro kala duwanaansho buuxiya shuruudaha kala-soocidda. Natiijo ahaan, sabeynta ayaa si ballaaran loogu dabaqaa kala-soocidda macdanta waxaana badanaa loo yaqaan "habka farsamaynta macdanta caalamiga ah." Waxay si gaar ah waxtar u leedahay oo si ballaaran loo isticmaalaa kala-soocidda walxaha ganaaxa iyo ultra-fine, taas oo ka dhigaysa mid ka mid ah farsamooyinka ugu waxtarka badan uguna waxtarka badan ee farsamaynta macdanta.