
今天南陽鈣粉廠家跟(gen)我們(men)講講活(huo)性(xing)(xing)碳(tan)酸鈣(gai)的(de)(de)(de)生(sheng)產(chan)工藝(yi)(yi),讓我們(men)可(ke)以更好的(de)(de)(de)了解我們(men)的(de)(de)(de)產(chan)品。活(huo)性(xing)(xing)碳(tan)酸鈣(gai)的(de)(de)(de)生(sheng)產(chan)工藝(yi)(yi)與(yu)生(sheng)產(chan)輕質(zhi)碳(tan)酸鈣(gai)大致(zhi)相同(tong),但在(zai)碳(tan)化(hua)(hua)(hua)(hua)這一工序中應嚴格操(cao)控條件,使(shi)生(sheng)成(cheng)微細的(de)(de)(de)碳(tan)酸鈣(gai)顆粒,再用(yong)活(huo)化(hua)(hua)(hua)(hua)劑(ji)進行(xing)表(biao)(biao)面(mian)處(chu)理(li)。行(xing)將石(shi)(shi)灰石(shi)(shi)與(yu)煤混合,其配比約7.5左右,于(yu)900-1000℃ 溫度(du)下在(zai)石(shi)(shi)灰窯(yao)中緞(duan)燒,二(er)氧化(hua)(hua)(hua)(hua)碳(tan)經洗(xi)氣除塵后送碳(tan)化(hua)(hua)(hua)(hua)塔,生(sheng)石(shi)(shi)灰進消(xiao)化(hua)(hua)(hua)(hua)槽,用(yong)80-90℃ 的(de)(de)(de)熱水(shui)充分消(xiao)化(hua)(hua)(hua)(hua),制(zhi)(zhi)成(cheng)濃度(du)約9%的(de)(de)(de)乳液(ye),進入碳(tan)化(hua)(hua)(hua)(hua)塔,通二(er)氧化(hua)(hua)(hua)(hua)碳(tan)進行(xing)碳(tan)化(hua)(hua)(hua)(hua),當(dang)碳(tan)化(hua)(hua)(hua)(hua)時(shi)(shi)懸浮液(ye)的(de)(de)(de)PH值等于(yu)7時(shi)(shi)為反響終點,此時(shi)(shi)可(ke)引入活(huo)化(hua)(hua)(hua)(hua)劑(ji),對生(sheng)成(cheng)的(de)(de)(de)碳(tan)酸鈣(gai)進行(xing)表(biao)(biao)面(mian)處(chu)理(li)。有(you)干(gan)法表(biao)(biao)面(mian)處(chu)理(li)和濕(shi)(shi)法表(biao)(biao)面(mian)處(chu)理(li), 一般選用(yong)濕(shi)(shi)法表(biao)(biao)面(mian)處(chu)理(li)工藝(yi)(yi),因(yin)該法可(ke)制(zhi)(zhi)得(de)活(huo)化(hua)(hua)(hua)(hua)度(du)高(gao),松(song)散功用(yong)好,透(tou)明性(xing)(xing)高(gao)的(de)(de)(de)活(huo)性(xing)(xing)碳(tan)酸鈣(gai)。目前增加(jia)活(huo)化(hua)(hua)(hua)(hua)劑(ji)一般有(you)酞酸酯偶聯劑(ji)、硬(ying)脂(zhi)酸、木質(zhi)素(su)等,用(yong)量(liang)約1%-5%。完成(cheng)了前面(mian)的(de)(de)(de)化(hua)(hua)(hua)(hua)學處(chu)理(li)后,對料液(ye)脫(tuo)水(shui)分別、單調制(zhi)(zhi)得(de)白度(du)高(gao)的(de)(de)(de)制(zhi)(zhi)品。