
今天南陽鈣粉廠家跟(gen)我們講(jiang)講(jiang)活(huo)性(xing)碳(tan)(tan)(tan)酸鈣(gai)(gai)的(de)(de)生(sheng)產工(gong)藝,讓我們可(ke)以更(geng)好(hao)的(de)(de)了解(jie)我們的(de)(de)產品(pin)。活(huo)性(xing)碳(tan)(tan)(tan)酸鈣(gai)(gai)的(de)(de)生(sheng)產工(gong)藝與生(sheng)產輕質碳(tan)(tan)(tan)酸鈣(gai)(gai)大致相同,但在(zai)碳(tan)(tan)(tan)化(hua)(hua)這(zhe)一工(gong)序中應嚴(yan)格(ge)操(cao)控條件,使生(sheng)成微(wei)細的(de)(de)碳(tan)(tan)(tan)酸鈣(gai)(gai)顆粒,再用(yong)(yong)(yong)活(huo)化(hua)(hua)劑(ji)(ji)進行(xing)表面(mian)處理(li)(li)(li)。行(xing)將(jiang)石(shi)(shi)灰(hui)石(shi)(shi)與煤(mei)混合,其(qi)配比約7.5左右,于900-1000℃ 溫度下在(zai)石(shi)(shi)灰(hui)窯中緞燒,二(er)(er)氧化(hua)(hua)碳(tan)(tan)(tan)經洗(xi)氣除塵后送碳(tan)(tan)(tan)化(hua)(hua)塔(ta),生(sheng)石(shi)(shi)灰(hui)進消化(hua)(hua)槽,用(yong)(yong)(yong)80-90℃ 的(de)(de)熱水(shui)充分(fen)消化(hua)(hua),制成濃度約9%的(de)(de)乳(ru)液(ye),進入(ru)碳(tan)(tan)(tan)化(hua)(hua)塔(ta),通二(er)(er)氧化(hua)(hua)碳(tan)(tan)(tan)進行(xing)碳(tan)(tan)(tan)化(hua)(hua),當碳(tan)(tan)(tan)化(hua)(hua)時(shi)懸浮液(ye)的(de)(de)PH值(zhi)等(deng)于7時(shi)為反(fan)響終(zhong)點,此時(shi)可(ke)引入(ru)活(huo)化(hua)(hua)劑(ji)(ji),對(dui)生(sheng)成的(de)(de)碳(tan)(tan)(tan)酸鈣(gai)(gai)進行(xing)表面(mian)處理(li)(li)(li)。有干法表面(mian)處理(li)(li)(li)和濕(shi)(shi)法表面(mian)處理(li)(li)(li), 一般選用(yong)(yong)(yong)濕(shi)(shi)法表面(mian)處理(li)(li)(li)工(gong)藝,因該法可(ke)制得活(huo)化(hua)(hua)度高,松(song)散(san)功用(yong)(yong)(yong)好(hao),透明性(xing)高的(de)(de)活(huo)性(xing)碳(tan)(tan)(tan)酸鈣(gai)(gai)。目前增加活(huo)化(hua)(hua)劑(ji)(ji)一般有酞酸酯偶聯劑(ji)(ji)、硬脂酸、木質素等(deng),用(yong)(yong)(yong)量約1%-5%。完成了前面(mian)的(de)(de)化(hua)(hua)學處理(li)(li)(li)后,對(dui)料液(ye)脫水(shui)分(fen)別、單(dan)調制得白度高的(de)(de)制品(pin)。