Ukusetyenziswa: ekuveliseni i-aluminium hydroxide. Umphunga ocoliweyo we-aluminium hydroxide osandul’ ukwenziwa kwi-120 ukuya kwi-250°C, umxube we-profilebuy uyaqina uze ujiye ukuze ufumane i-water suspension enomxholo we-solids we-50 ukuya kwi-300 g/l kunye ne-sodium oxide kwisigaba solwelo se-0.05 – 5 g/l I-Aqueous suspension ifakwe kwisisombululo se-aluminate esi-supersaturated, ifake i-extract efunyenweyo phantsi kokuxutywa, yahlula i-aluminium hydroxide eyahlukileyo kwi-mother liquor ize ihlanjwe. 1 Cp f-crystals, 1 Il., itheyibhile 1.

Le ngcinga inxulumene nokuveliswa kwe-aluminium hydroxide, kwaye ngokukodwa ukuveliswa kwe-aluminium hydroxide entle evela kwizisombululo zamanzi ze-sodium aluminate.

Indlela yokufumana i-aluminium hydroxide entle [1] apho inkqubo iqhutywa ngamanqanaba amabini. Kwinqanaba lokuqala isisombululo se-aluminate siyasuswa nge-hydrochloric acid, kwaye i-aluminium hydroxide ephumayo isetyenziswa njengokubola kwembewu yesisombululo se-aluminate esingaphezulu kwesaturated kwinqanaba lesibini. Ngenxa yoko, i-aluminium hydroxide enesakhiwo se-hydrargillite, esetyenziselwa iinjongo ezahlukeneyo, umzekelo kwi-prigotovit sisiphumo sokungasuswa kwesisombululo se-alkali aluminate esibangelwa yi-caustic. I-aluminium hydroxide ephumayo ibonakaliswa kukusasazwa okuphezulu kunye nesakhiwo esingaguqukiyo samaqhekeza, nto leyo ebonisa umsebenzi wayo ophezulu wembewu ekuqhekekeni kwezisombululo ze-aluminate.

Nangona kunjalo, le ndlela yokulungiselela imbewu inokwenzeka kuphela xa kusetyenziswa izisombululo ze-aluminate ezilungiselelwe ngokukodwa, ezingaqulathanga ukungcola. Ngaphandle koko, i-aluminium hydroxide ephumayo ifunxa ukungcola kwisisombululo kwaye umsebenzi wembewu uyehla. Ukongeza, ngokusetyenziswa kwale ndlela ngenxa yesantya esiphantsi sokuhla kunye nokucoca, i-aluminium hydroxide yembewu inikwa kwinqanaba lesibini ngendlela yokumiswa. Kule meko, zonke ezenziwe kwinqanaba lokuqala letyuwa ziwela kwinqanaba lesibini, zingcolise imveliso ephambili kwaye zijikeleze kwicandelo lezisombululo zemveliso.

Eyona ndlela isondeleyo kwimveliso yobugcisa kunye nesiphumo esifunyenweyo yindlela yokufumana i-aluminium hydroxide entle njengoko imbewu isebenzisa i-aluminium hydroxide, egayiweyo kwindawo ethile, engaphezulu okanye elingana ne-1 m.²/g, ngelixa imbewu ifakwa kwisisombululo se-aluminate ngobuninzi kangangokuba umphezulu uphela unyibilike ngekhemikhali yayo kwaye ngenxa yoko, umsebenzi wembewu uphantsi, nto leyo ebangela ukuba kusetyenziswe inani elikhulu lembewu kunye neendleko eziphezulu zamandla ekulungiseleleni kwayo.

Isiseko sale mveliso kukuphuhlisa indlela yokulungiselela imbewu ye-aluminium hydroxide, eqinisekisa ukusebenza kwayo okuphezulu kwembewu kunye nokucoceka kwayo kweekhemikhali, nto leyo ekugqibeleni ekhokelela ekuncipheni kokusetyenziswa kwezinto kunye nezixhobo zamandla.

Ngenxa yesi sizathu, indlela yokuvelisa i-aluminium hydroxide, equka ukugaywa kwembewu ye-aluminium hydroxide, ukuxuba imbewu etyumkileyo nesisombululo esingaphezulu kwe-supersaturated kunye nokukhupha i-suspension ephumayo ngokuxuba, imbewu ye-aluminium hydroxide icwiliswe umphunga kwi-120-250.^malungaC. iprofayili yokudibanisa i-condense thenga umxube kunye ne-receiver suspension equlethe i-50-300 kg/m³i-aluminium hydroxide engumgubo, esetyenziswa njengembewu.

Umxholo ofanelekileyo we-sodium oxide kwisigaba solwelo sokumiswa ukugcina ngaphakathi kwe-0.05 ukuya kwi-5 g/L.

Ukugaya umphunga we-aluminium hydroxide kwi-120-250^malungaIbonelela ngokufumana i-aluminium hydroxide ecocekileyo ngokweekhemikhali, umsebenzi ophezulu wembewu. Phanda ngenani leemifantu, iitships kunye nee-ledges, ezinesakhiwo esingaguqukiyo.

Ulwakhiwo lomphezulu oluchaziweyo luchaza umsebenzi wayo ophezulu wembewu xa kusetyenziswa i-aluminium hydroxide njengembewu.

Isiphumo esiphezulu sifezekiswa xa ubushushu bomphunga kwigumbi lokusila bufikelela kwi-120-250^malungaC.

Xa ubushushu buhla ngaphantsi kwe-120^malungaXa umsebenzi weekhemikhali womphezulu we-aluminium hydroxide etyumkileyo ufana nezinye iindlela zokusila.

Ubushushu buyanda ngaphezu kwama-250^malungaNangona kunjalo, ayinyusi umsebenzi weekhemikhali womphezulu, iindleko zamandla obushushu ziyanda ekulungiseleleni imbewu.

Xa umxholo oqinileyo kwi-aqueous suspension efunyenwe emva komxube we-condensation paraphilias, ukumiswa komsebenzi wembewu ye-50-300 g/l kuphezulu.

Ukuncipha komxholo we-solid kwi-suspension kungaphantsi kwe-50 g/l akukho mpembelelo kumsebenzi wayo ongenanto, kodwa kule nkqubo kungenisa amanzi amaninzi, nto leyo efuna iindleko ezongezelelweyo ekuphumeni kwawo.

Ukwanda koxinzelelo lwezinto eziqinileyo emanzini axhonyiweyo ngaphezu kwe-300 g/l yomsebenzi wakhe ongenanto kuyehla. Oku kubangelwa kukwehla kwe-x yi-acid-base type.

Umxholo we-sodium oxide kwisigaba solwelo sokumiswa kwamanzi kuluhlu lwe-0.05-5 g/l unika umsebenzi wayo ophezulu wembewu.

Umda ophantsi woxinzelelo unqunyelwe ngumxholo we-intracrystalline alkali-washed aluminium hydroxide, ofika ekugayweni.

Xa uxinzelelo lwe-sodium oxide lungaphezulu kwe-5 g/l, ukumiswa komsebenzi wembewu kuyancipha ngenxa yokunyibilika kwezakhiwo ezingaguqukiyo zomphezulu wembewu.

Indlela ecetywayo yokuvelisa i-aluminium hydroxide yenziwa kusetyenziswa izixhobo ezenziweyo nezisetyenziswa kwizityalo zasekhaya: uhlobo lwe-jet mill ES-06; SP-1, njl.

Kwi-jet mill, ukugaya kwenzeka ngaphandle kokusebenzisa i-grinding media kusetyenziswa umgaqo wezinto ezinokutsha xa kungqubana amasuntswana. Ukusebenzisa i-jet mills kuyimfuneko ukuqinisekisa iiparameters ezicetywayo zenkqubo kunye nokufumana iziphumo zobugcisa ezifunekayo.

Kwi-boron equlathe i-boron, abantu baphola. Ukuphola kwamanzi aveliswayo. Xa lo mphunga uqina kwaye wenze ukumiswa kwe-aluminium hydroxide emanzini, athi emva kokuqina asetyenziswe kwiKea.

I-aluminium hydroxide evela kwi-hopper 1 ngesikrufu 2 ifakwa kwi-tube jet mill ekhawulezayo 3. Iityhubhu ezikhawulezisayo i-aluminium hydroxide ikhawulezisa uxinzelelo lomphunga. Iiplati ezidibanayo zemiqadi ziyangqubana, zityumke kwaye zikhutshwe umphunga kwi-centrifugal separator 4. Iiplati ezinkulu zibuyiselwa kwi-mill kwi-Dorisol, kwaye zityumzwe kubungakanani obufunekayo beparticle ziya kugcinwa kwinkqubo yokuqokelela uthuli 5. Umlambo we-Paraphilias uyaphola, uxinene, uxutywe ngamanzi 6 uxinene kwi-thickener 7, uxutywe nesisombululo se-aluminate esingaphezulu kwe-8 kwaye ungene kwi-reactor 9, egcinwa phantsi kokuxutywa. Emva kokumanzisa i-aluminium hydroxide iyahlulwa kwi-mother liquor kwisihluzo 10, ihlanjwe kwaye ithunyelwe kumthengi.

Ukuthelekisa idatha evela kwiimvavanyo ezininzi kubonisa ukuba ukugaywa kwe-aluminium hydroxide kwi-jet mill kuba ngumphunga kwi-120-250^malungaNgokusetyenziswa nangokulandela umxube wamanzi wezinto ezicoliweyo eziqulethe i-50-300 g/l eqinileyo njengembewu, kuphucula ukusebenza kakuhle kwenkqubo kunye nomgangatho wemveliso egqityiweyo ngenxa yokuveliswa kwembewu ecocekileyo ngokweekhemikhali, kunye nomsebenzi ophezulu wembewu.

I-Industrial Prime p 1 kg ye-aluminium hydroxide enomlinganiselo wekristale ophakathi we-40 μm umphunga ocoliweyo kwi-laboratory jet mill. Ubushushu bomphunga emnyango we-jet mill bebuyi-160^malungaXa uxinzelelo lwe-7 MPa. Ubushushu kwigumbi lokusila 140^malungaC. Ubungakanani obuqhelekileyo beekristale emva kokusila ukuya kwi-2.0 μm.

I-aluminium hydroxide egutyiweyo, eyenziwe ngohlobo lomxube we-paraphilias, ibanjwa ngohlobo lwefilimu equlathe i-boron. Ukuxinana komphunga oveliswa ngamanzi abandayo kwi-boron equlathe i-boron. Emva kokuxinana kwabantu bafumana i-10 l ye-suspension equlethe i-100 g/l ye-aluminium hydroxide egutyiweyo kunye ne-0.4 g/l ye-sodium oxide kwisigaba solwelo.

I-0,04 l yokumiswa kwamanzi ixutywe nelitha e-1 yesisombululo se-aluminate equlethe, g/l: Na₂O_ku130,9; Al₂O₃137,2; Na₂CO₃20,3; NaCl 12,2; Na₂SO₄5,4; ikhabhoni yendalo (iCorg.) 12,4. Ukumiswa okuphumayo kufakwa kwi-reactor kwaye kugcinwe phantsi kokuxutywa kwi-55^malungaC iiyure ezingama-24

Ubungakanani bokubola kwesisombululo se-aluminate yayiyi-50.2% yenani lemveliso ye-aluminium hydroxide 109,4, ubungakanani obuphakathi beekristale kwi-sediment yi-3.6 μm, umxholo wokungcola kwi-aluminium hydroxide, i-Na₂O 0,42; Fe₂O₃0,021; SiO₂0,018.

Iziphumo zovavanyo ngaphakathi kweenkqubo ezicetywayo, ezilungileyo nangaphezulu kwe-C, ukusebenza kakuhle kokubola kufezekiswa kubushushu kwigumbi lokusila eliyi-120-250^malungaXa, umxholo we-aluminium hydroxide etyumkileyo ekumisweni kwamanzi yi-50-300 g/l kunye nomxholo we-sodium oxide kwisigaba solwelo sokumiswa kwamanzi yi-0.05-5 g/L.

1. INDLELA yokuvelisa i-Aluminium HYDROXIDE, equka ukugaywa kwembewu ye-aluminium hydroxide, ukuxuba imbewu ye-aluminium hydroxide etyumkileyo kwisisombululo se-aluminium esingaphezulu kwe-supersaturated, ukuguga kokumiswa okubangelwayo ngokuxubha, iSebe likhuphe i-aluminium hydroxide kwi-mother liquor kunye nokuhlamba, okuchazwe ngokuba ukugaywa kwe-aluminium hydroxide kwenziwa ngomphunga kwi-120 250^oXa iprofayili ifunyenwe, thenga i-suspension ibe nkulu kwaye ibe nkulu ukuze ufumane i-suspension yamanzi enomxholo we-solid we-50 ukuya kwi-300 g/l kwaye ifakwe kwisisombululo esigcweleyo.

2. Le ndlela ngokwephepha 1, ichazwa ngokuba umxholo we-sodium oxide kwisigaba solwelo sokumiswa kwamanzi ugcinwa ngaphakathi koluhlu lwe-0.05 ukuya kwi-5.0 g/L.