Umsebenzi kunye nokuLungiswa kweAluminiyam Sulfate ekwenzeni iPhepha

I-aluminium sulfate(ekwaziwa njenge-alum okanye i-bauxite) iqhele ukusetyenziswa njenge-precipitant yokulinganisa.Ukwakhiwa kweekhemikhali zayo eziphambili yi-aluminium sulfate kunye ne-14 ~ 18 yamanzi e-crystal, kunye nomxholo we-Al2O3 ngu-14 ~ 15%.I-aluminium sulfate kulula ukuyinyibilika, kwaye isisombululo sayo si-acidic kwaye siyabola.Ukungcola okuqulethwe kwi-bauxite akufanele kube kuninzi, ngokukodwa ityuwa yentsimbi akufanele ibe phezulu, ngaphandle koko iya kusabela ngeekhemikhali nge-rosin gum kunye nedayi, echaphazela umbala wephepha.

Umgangatho womgangatho wokulinganisa i-bauxite kukuba: umxholo we-alumina ungaphezulu kwe-15.7%, umxholo we-iron oxide ungaphantsi kwe-0.7%, umxholo wezinto ezinganyibilikiyo zamanzi ungaphantsi kwe-0.3%, kwaye awuqukethe i-asidi ye-sulfuric yamahhala.

I-Bauxite idlala indima enkulu ekwenzeni iphepha, okokuqala kuko konke imfuno yokulinganisa, kwaye ihlangabezana nezinye iimfuno zokwenza iphepha.Isisombululo se-bauxite si-acidic, kwaye ukongeza ngaphezulu okanye ngaphantsi kwe-bauxite kuya kuchaphazela ngokuthe ngqo ixabiso le-pH le-slurry kwi-net.Nangona ukwenza iphepha ngoku kutshintsha ngokungathathi hlangothi okanye i-alkaline, indima ye-alumina ekwenzeni iphepha ayinakungahoywa.

Uphononongo lubonise ukuba ukulawula iδ amandla ngokulungelelanisa ixabiso le-pH ye-intanethi inokuphucula ngokufanelekileyo ukukhutshwa kwamanzi kunye nokugcinwa kwe-slurry ye-intanethi, kwaye inokusebenzisa ngokufanelekileyo i-talcum powder ukulawula izithintelo ze-resin.Ukwandisa ngokufanelekileyo inani le-bauxite ekunciphiseni ixabiso le-pH le-slurry kunokunciphisa ngokufanelekileyo ukubambelela kwi-pulp kunye nokunciphisa ukuphela kokuphela okubangelwa yi-press paper hair enamathela kwi-roller.Ngokuqhelekileyo kubonisa ukuba xa kukho uboya obuninzi bephepha kumatshini wokushicilela, inani le-alumina linganyuswa ngokufanelekileyo.Nangona kunjalo, umthamo we-bauxite kufuneka ulawulwe ngokufanelekileyo.Ukuba inani likhulu kakhulu, aliyi kubangela inkunkuma kuphela, kodwa kwakhona lenze iphepha libe lukhuni.Kwaye kukhokelela ekudlekeni kwamalungu omatshini wephepha kunye nokulahleka kocingo kunye nokuziva.Ngoko ke, inani le-alumina lilawulwa ngokubanzi ngokulawula ixabiso le-pH phakathi kwe-4.7 kunye ne-5.5.

Iindlela zokuchithwa kwe-alumina ziquka indlela yokutshatyalaliswa eshushu kunye nendlela yokucima okubandayo.Eyangaphambili kukukhawulezisa ukuchithwa kwe-alumina ngokufudumeza;Le yokugqibela kukukhawulezisa ukusasazwa kunye nokuchithwa kwe-alumina kwisisombululo esinamanzi ngokujikeleza.Xa kuthelekiswa nendlela yokunyibilika okutshisayo, indlela yokutshatyalaliswa ineenzuzo zokulondoloza umphunga kunye nokuphucula indawo ebonakalayo, kwaye yindlela engcono yokuchithwa.