Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Passage: Maido da ƙarfe ta hanyar sake amfani da shi ya zama muhimmin aiki na masana'antar aluminum. Maimaitawa ya kasance wani aiki ne mai zurfi har zuwa ƙarshen shekarun 1960, lokacin da karuwar amfani da gwangwani na abin sha na aluminum ya kawo shi ga fahimtar jama'a. Maimaitawa ya haɗa da narkar da ɓarnar, wani tsari wanda ke buƙatar kashi 5% kawai na makamashin da aka yi amfani da shi don samar da aluminum daga ma'adinai, kodayake an rasa wani ɓangare mai mahimmanci (har zuwa 15% na kayan shigarwa) a matsayin ƙura (oxide mai kama da toka). Mai narkar da dutsen aluminum yana samar da ƙarancin ƙura, tare da ƙimar da aka ruwaito a ƙasa da 1%. Farin farin daga samar da aluminum na farko da kuma daga ayyukan sake amfani da na biyu har yanzu yana ƙunshe da adadin aluminum mai amfani wanda za'a iya cire shi ta hanyar masana'antu. Tsarin yana samar da billets na aluminum, tare da wani abu mai mahimmanci. Wannan sharar tana da wuyar sarrafawa. Yana amsawa tare da ruwa, yana sakin cakuda iskar gas (gami da, a tsakanin wasu, hydrogen, acetylene, da ammonia), wanda ke ƙonewa kai tsaye lokacin da ya haɗu da iska; haɗuwa da iska mai laushi yana haifar da sakin adadi mai yawa na gas na ammonia. Duk da waɗannan matsalolin, ana amfani da datti a matsayin mai cikawa a cikin kwalta da kankare.  Tambaya: Wane masana'antu ne sake amfani da shi yana da muhimmanci sosai?
masana'antar aluminum