Sinadarin alumina ya bambanta, bisa ga ma'aunin masana'antar ƙarfe mara ƙarfe YS/ ton 619-2007 "nau'in alumina na sinadarai da sunan alama", bisa ga sinadaran sinadaran alumina an raba shi zuwa rukuni 5: jerin aluminum hydroxide, jerin aluminum oxide na musamman, jerin quasi thin alumina, jerin zeolite da jerin siminti na calcium aluminate.
Yanzu, polyaluminium chloride, sodium silicate, fluoride gishiri da sauran gishirin aluminum, sodium aluminate, gallium da gallium mahadi, wani ɓangare na yumburan alumina da kuma masu hana corundum suma an haɗa su cikin rukunin alumina mai sinadarai.
A shekarar 1910, Alcoa ta samar kuma ta sayar da rukunin farko na alumina mai sinadarin calcined a duniya, wanda shine kayan da ake amfani da su wajen samar da farin corundum abrasives.
Sinadarin alumina yana da halaye iri-iri na samfura, ƙarin ƙima mai yawa, babban abun ciki na fasaha, faɗaɗa da faɗaɗa filayen aikace-aikace, farashi mai ɗorewa, mai kyau ga muhalli, saboda haka, ya zama muhimmin reshe na masana'antar aluminum.
Kasashe da dama a duniya sun zuba jari mai yawa wajen bunkasa masana'antar sinadarai ta alumina. Alcoa ta kasance babbar masana'antar sinadarai ta alumina a duniya, tana da kamfanonin samar da kayayyaki guda 24, wadanda suka mamaye dukkan manyan kasashe da yankuna a duniya, suna samar da nau'ikan sama da 220 da kuma tan sama da 1000,000/a. Sannan a shekarar 2007 aka mayar da farantin sinadarai na alumina zuwa kamfanin anmai na kasar Netherlands.
Japan ita ce ƙasa mafi ƙarfin samar da sinadarin alumina a duniya, amfani, fitar da kusan tan 1000, tan 2012, kuma ta ci gaba da ƙaruwa a hankali, nau'in ya fi yawa a duniya, Japan ba ta samar da alumina mai daraja ta ƙarfe ba, amma ta fahimci girman samar da sinadarai na alumina, seriation, kimiyya da fasaha mai zurfi, kare muhalli da kuma rage farashi, samfura sai dai don biyan buƙatun cikin gida, fitar da kayayyaki ya kai 25%. Fiye da kashi 85% na samar da sinadarai na alumina a Japan ana samar da su ne ta masana'antar sinadarai ta sumitomo, showa denko da ƙarfe masu haske na Japan.
A kusan shekarar 1940, Amurka, Japan da Turai kan binciken sinadarai na alumina a babban mataki, har zuwa shekarun 1970, a wasu ƙasashe masu ci gaba a masana'antu a ƙasashen waje, babban ci gaba ne.
A bisa kididdigar ƙungiyar masana'antar aluminum ta duniya, a shekarar 1975, jimillar fitowar alumina a ƙasashen yamma ta kai kimanin tan 20344,000, samar da sinadarin alumina na tan 1699,000, wanda ya kai kashi 8.3% na jimillar fitowar; A shekarar 2000, jimillar fitowar alumina a duniya ta kai kimanin tan 51,200,000, yayin da fitar da sinadarin alumina na tan 4800,000, wanda ya kai kashi 9.4% na jimillar fitowar. A shekarar 2008, fitar da alumina na matakin ƙarfe a duniya ta kai tan 60,496,000, kuma alumina na sinadarai ta kai tan 4638,000, wanda ya kai kashi 7.12% na jimillar fitowar. A shekarar 2012, jimillar fitowar alumina a duniya ta kai tan 95,705,000, kuma fitar da alumina na sinadarai ta kai tan 85,80,000, wanda ya kai kashi 9% na jimillar fitowar. Daga 2008 zuwa 2012, matsakaicin shekara-shekara Yawan ci gaban sinadarin alumina na duniya ya kai kashi 16.6%, kimanin maki 11 cikin ɗari ya fi matsakaicin ci gaban aluminum na farko a kowace shekara.
Masana'antar sinadarai ta alumina ta China ta fara aiki a ƙarshen shekarar 1961. A kusan shekarar 1961, domin magance ƙarancin kayan aiki a masana'antar lantarki, masana'antar aluminum ta shandong (wanda yanzu aka sani da kamfanin masana'antar aluminum ta shandong, LTD) ta fara ƙirƙiro alumina mai ƙarancin sodium kuma ta fara bincike, haɓakawa da samar da alumina mai sinadarai a China.
A shekarun 1970, domin biyan buƙatun man fetur, sinadarai, kayan da ba su da kyau, tukwane, magunguna, kariyar muhalli, makamai, jiragen sama da sauran masana'antu, buƙatar sinadarai na alumina, masana'antar aluminum ta shandong, cibiyar bincike ta ƙarfe mai haske ta zhengzhou kuma tana da ci gaba da samar da alumina da aka kunna, alumina arsenic fluoride wakili na cire sinadarin fluoride, ƙarancin ƙarfe na aluminum hydroxide, alumina mai tsarki, tukwane tare da alpha Al2O3, fesawa da alumina da sauran sabbin kayayyaki guda 24.
A shekarun 1980, samar da sinadarin alumina na kasar Sin ya shiga wani lokaci mai sauri, kuma sabbin kayayyaki sun ci gaba da bunƙasa. Cibiyar bincike ta zhengzhou mai haske ta ƙarfe, kamfanin Shandong aluminum industry co., ltd. da kamfanin China Great Wall aluminum industry co., ltd. sun samar da layukan samar da alumina na musamman guda 60. A cikin manyan kamfanonin alumina da dama a yankunan da ke kewaye, sun gina tarin kayayyakin alumina na sinadarai na kamfanoni masu zaman kansu, suna amfani da kayan da ake shigowa da su daga waje ko kuma na cikin gida don samar da nau'ikan alumina na sinadarai.
Kasar Sin babbar kasa ce da ke samar da alumina, tana amfani da fasahar samarwa fiye da kowace kasa, yana da sauki a cimma reshen samar da alumina ta hanyar dasa shi a cikin tsarin fasaha, musamman aluminum hydroxide da ake samarwa ta hanyar sintering process, wanda ke da farin halitta mai yawa.
Bayan sama da shekaru 50 na ci gaba, masana'antar sinadarai ta alumina ta kasar Sin tana da tasiri sosai a kasuwannin cikin gida da na waje, kuma an san sinadarin aluminum hydroxide da sauran kayayyaki sosai a kasuwannin duniya.
Duk da haka, idan aka kwatanta da Amurka, Jamus, Japan, sinadarin alumina na kasar Sin ba tare da la'akari da ingancin samfura ba, nau'ikansa, girman samarwa yana da babban gibi, babban dalilin shine koma baya a fasahar samarwa da kayan aiki, samarwa da amfani da binciken ka'idoji na asali bai isa ba, raunin karfin kirkire-kirkire, ci gaban kasuwa bai isa ba.
Lokacin Saƙo: Maris-02-2020