文章來源：山(shan)東(dong)國(guo)資委 發布時間：2009-09-10
赤泥(ni)是氧化(hua)(hua)鋁(lv)(lv)生(sheng)(sheng)(sheng)產(chan)(chan)過(guo)程中(zhong)(zhong)所產(chan)(chan)生(sheng)(sheng)(sheng)的(de)廢(fei)棄物(wu)，每(mei)生(sheng)(sheng)(sheng)產(chan)(chan)1噸氧化(hua)(hua)鋁(lv)(lv)約產(chan)(chan)生(sheng)(sheng)(sheng)赤泥(ni)1.5噸以上(shang)，由于(yu)此前國內(nei)外尚無有效的(de)工業化(hua)(hua)處(chu)理方法，一般只能堆存，既占用(yong)(yong)(yong)了大量土(tu)地(di)，還(huan)對土(tu)壤、水源、大氣等(deng)造成(cheng)(cheng)(cheng)污染，成(cheng)(cheng)(cheng)為(wei)一道世界性(xing)的(de)環保難題。濟鋼(gang)主動(dong)與山東一家大型氧化(hua)(hua)鋁(lv)(lv)企業接洽，簽(qian)訂了《赤泥(ni)綜合利(li)用(yong)(yong)(yong)聯合研發(fa)項目(mu)協議(yi)書》。經過(guo)一年多(duo)的(de)技術攻(gong)關，先后攻(gong)克(ke)了選礦(kuang)(kuang)、冶煉工藝無害化(hua)(hua)等(deng)多(duo)項難關，形成(cheng)(cheng)(cheng)發(fa)明專利(li)3項。從(cong)鋁(lv)(lv)土(tu)礦(kuang)(kuang)中(zhong)(zhong)溶出三(san)氧化(hua)(hua)二鋁(lv)(lv)后，對排出的(de)赤泥(ni)再進行選礦(kuang)(kuang)處(chu)理，提(ti)選出其中(zhong)(zhong)的(de)鐵礦(kuang)(kuang)物(wu)，用(yong)(yong)(yong)于(yu)鋼(gang)鐵冶煉，并成(cheng)(cheng)(cheng)功地(di)通過(guo)中(zhong)(zhong)試(shi)試(shi)驗將選后赤泥(ni)制成(cheng)(cheng)(cheng)免燒磚，用(yong)(yong)(yong)做建筑材料，基(ji)本做到(dao)了“吃(chi)干榨盡”。目(mu)前，濟鋼(gang)利(li)用(yong)(yong)(yong)該項技術與合作，實施赤泥(ni)資源化(hua)(hua)開(kai)發(fa)，已形成(cheng)(cheng)(cheng)規模化(hua)(hua)工業生(sheng)(sheng)(sheng)產(chan)(chan)條(tiao)件。上(shang)半年利(li)用(yong)(yong)(yong)赤泥(ni)開(kai)發(fa)生(sheng)(sheng)(sheng)產(chan)(chan)煉鋼(gang)脫硅劑5000多(duo)噸，利(li)用(yong)(yong)(yong)赤泥(ni)生(sheng)(sheng)(sheng)產(chan)(chan)球團礦(kuang)(kuang)項目(mu)已建成(cheng)(cheng)(cheng)，具備年處(chu)理赤泥(ni)160萬(wan)噸能力，每(mei)年可減(jian)少占地(di)約160畝，為(wei)鋁(lv)(lv)廠(chang)減(jian)少赤泥(ni)堆存費4000萬(wan)元，同(tong)時為(wei)鋼(gang)廠(chang)增加效益4000多(duo)萬(wan)元，環境(jing)和社(she)會效益十分(fen)顯著。