Amfani: wajen samar da sinadarin aluminum hydroxide. Mahimmanci: ana niƙa sinadarin aluminum hydroxide iri, a haɗa shi da ruwan aluminate. Ana saka sinadarin da ya haifar da shi a cikin ruwan sannan a shafa shi da carbon dioxide. Ana raba sinadarin aluminum hydroxide daga ruwan da ke cikinsa. Ana wanke sinadarin aluminum hydroxide.
Wannan ƙirƙira ta shafi samar da aluminum hydroxide.
Hanya ce ta samun ingantaccen sinadarin aluminum hydroxide [1] wanda ake gudanar da aikin a matakai biyu. A mataki na farko, ana haɗa sinadarin aluminate da sinadarin hydrochloric acid, kuma ana amfani da sinadarin aluminum hydroxide da aka watsa a hankali a matsayin ruɓewar iri na maganin aluminate mai cike da sinadarai a mataki na biyu.
Rashin kyawun wannan hanyar shine babban farashi da ke faruwa sakamakon rashin sinadarin caustic alkali ta hanyar acid, tarin datti a cikin mafita, da sauransu.
Mafi kusa da wannan ƙirƙira ita ce wata hanya [2] wadda ake amfani da foda aluminum hydroxide don samar da ingantaccen aluminum hydroxide a matsayin iri.
Rashin kyawun wannan hanyar shine babban maganin wintopo.
Manufar wannan ƙirƙira ita ce rage farashin makamashi ta hanyar ƙara yawan fitar da sinadarin aluminum hydroxide mai kyau.
Ana amfani da sinadarin carbonization sosai wajen sarrafa sinadarin aluminate ta hanyar amfani da sinadarin carbon dioxide, kuma ana amfani da shi sosai a masana'antun alumina da ke aiki ta hanyar sintering. Amfani da sinadarin carbonization na iya samar da sinadarin hydroxide mai yawa.
Girman hatsi na aluminum hydroxide da aka samu a cikin tsarin carbonization ya dogara ne akan zafin carbonization da abun da ke cikin mafita na aluminate (tattara alkali da alumina).
Hanyar da aka sani (Ƙarafa masu haske. 1937, Lamba ta 10, S. 8-15) samar da ingantaccen hydroxide na aluminum ta hanyar amfani da carbonization, gami da sarrafa mafita na carbon dioxide ultracracker aluminate (mafita 200 g/l) a ƙananan yanayin zafi (30)game daC).
Duk da cewa wannan hanyar tana ba da ingantaccen sinadarin aluminum hydroxide mai ƙarfi, amfani da shi ba zai yiwu ba saboda matsalolin fasaha da ke tasowa a matakan ƙarshe na aikin: Sashen ruwan sama da wankewa.
Duk da haka, lokacin amfani da hanyar nizkokontsentrirovannye ta carbonization ta gaza.
Girman hatsi na aluminum hydroxide da aka samu a ƙarƙashin waɗannan yanayi, wanda aka siffanta shi da abun da ba shi da tsari da kuma yawan ƙwayoyin cuta masu kauri.
Ƙirƙirar ta ƙunshi hanyar samar da ingantaccen hydroxide na aluminum, wanda ya ƙunshi niƙa iri na aluminum hydroxide, haɗa shi da maganin aluminate, tsotse dakatarwar da aka samu tare da juyawa, raba aluminum hydroxide daga uwar giya da wankewa, kafin a raba aluminum hydroxide daga uwar giya, ana yi wa carbon dioxide magani.
Bincike ya nuna cewa lokacin da ake sarrafa magangunan carbon dioxide aluminate waɗanda ke ɗauke da adadi mai yawa na daskararru, girman barbashi kusan iri ɗaya ne.
Lokacin yin irin da aka niƙa a cikin ruwan aluminate mai cike da sinadarai, kuma tsufa da dakatarwar da aka samu ta hanyar juyawa yana samar da adadi mai yawa na aluminum hydroxide mai warwatse sosai. Duk da haka, yawan aluminum hydroxide mai kyau ba tare da ƙarin sarrafa dakatarwar ba yana da ƙasa kuma ya dogara da yawan caustic alkali a cikin maganin: mafi girman yawan alkali, mafi ƙarancin fitarwa.
Lokacin da ake sarrafa carbon dioxide, dakatarwar farko da aka samar ta hanyar fitar da aluminum hydroxide iri ɗaya ne da na sarrafa dakatarwar bayan fallasa ta farko, duk da haka, yana ƙara girman barbashi na aluminum hydroxide sosai.
Ana iya aiwatar da wannan hanyar ta amfani da kayan aikin da ake da su a yanzu.
Hanyar da ta fi dacewa ita ce tsire-tsire masu tsire-tsire na alumina bisa fasahar spechitelnoj.
Kwatanta bayanai daga gwaje-gwaje da yawa ya nuna cewa sarrafa sinadarin hydrate slurry da aka samu bayan fallasa cakuda maganin aluminate da iri da aka yanka, carbon dioxide yana ba da damar samun ingantaccen aluminum hydroxide da kuma tabbatar da yawan amfanin ƙasa.
PRI me R 1. An haɗa kilogiram 0.02 na aluminum hydroxide tare da matsakaicin girman 2.8 μm da lita 1 na maganin aluminate wanda ke ɗauke da, g/l: Na2CMOS 100,8; Al2O3107,4.
An zartar da hukuncin dakatarwar da aka samu a lokacin da aka cika shekaru 60game daTare da sama da awanni 10, sinadarin aluminum hydroxide mai kyau ya kai 40,4, matsakaicin girman barbashi a cikin laka na 3.6 μm. Haɗin ruwan da aka yi amfani da shi wajen dakatar da shi, cakuda Noi, ya ƙunshi kusan 12. CO2.2Lokacin sarrafawa na awanni 6 zuwa ga ragowar sinadarin sodium oxide a cikin ruwan magani bayan an yi masa magani na 5.6 g/L.
Matsakaicin girman barbashi a cikin laka bayan an yi masa magani shine 4.8 μm. Fitowar aluminum hydroxide 102,5.
PRI mme R 2. An haɗa kilogiram 0.02 na aluminum hydroxide tare da matsakaicin girman 2.8 μm da lita 1 na maganin aluminate kuma nan da nan (ba tare da fallasa ba) an yi masa magani da carbon dioxide. Tsawon lokacin magani da yawan CO22a cikin cakuda iskar gas mai kama da misali na 1.
Fitowar aluminum hydroxide shine 103,1, matsakaicin girman barbashi a cikin laka shine 30.4 μm.
Saboda haka, aiwatar da jerin ayyukan da ke sama: cakuda maganin aluminate tare da cirewar iri da aka niƙa, dakatarwar da aka samu, slurry na carbonation kafin rabuwa da aluminum hydroxide na iya samar da ingantaccen hydroxide na aluminum.
HANYAR SAMAR DA FINE ALUMINUM HYDROXIDE, wadda ta ƙunshi niƙa iri na aluminum hydroxide, haɗa shi da maganin aluminate, tsotse dakatarwar da aka samu tare da juyawa, raba aluminum hydroxide daga uwar giya da wankewa,
Lokacin Saƙo: Yuli-09-2020