
今天南陽鈣粉廠家跟我們講(jiang)講(jiang)活(huo)(huo)性(xing)(xing)碳(tan)(tan)(tan)酸鈣(gai)(gai)(gai)的(de)生(sheng)產(chan)(chan)工(gong)(gong)藝(yi),讓我們可(ke)以更好的(de)了解我們的(de)產(chan)(chan)品。活(huo)(huo)性(xing)(xing)碳(tan)(tan)(tan)酸鈣(gai)(gai)(gai)的(de)生(sheng)產(chan)(chan)工(gong)(gong)藝(yi)與(yu)生(sheng)產(chan)(chan)輕質碳(tan)(tan)(tan)酸鈣(gai)(gai)(gai)大(da)致相同,但(dan)在碳(tan)(tan)(tan)化(hua)(hua)(hua)這一工(gong)(gong)序中應(ying)嚴格操(cao)控條件(jian),使生(sheng)成(cheng)微細的(de)碳(tan)(tan)(tan)酸鈣(gai)(gai)(gai)顆粒(li),再用(yong)(yong)活(huo)(huo)化(hua)(hua)(hua)劑(ji)進(jin)(jin)(jin)行(xing)表面(mian)處(chu)理(li)(li)。行(xing)將石灰(hui)石與(yu)煤混合,其(qi)配比約(yue)7.5左(zuo)右(you),于900-1000℃ 溫度(du)下在石灰(hui)窯中緞(duan)燒(shao),二氧化(hua)(hua)(hua)碳(tan)(tan)(tan)經洗氣除(chu)塵后送碳(tan)(tan)(tan)化(hua)(hua)(hua)塔,生(sheng)石灰(hui)進(jin)(jin)(jin)消化(hua)(hua)(hua)槽,用(yong)(yong)80-90℃ 的(de)熱水(shui)充(chong)分消化(hua)(hua)(hua),制成(cheng)濃度(du)約(yue)9%的(de)乳液(ye),進(jin)(jin)(jin)入(ru)(ru)碳(tan)(tan)(tan)化(hua)(hua)(hua)塔,通二氧化(hua)(hua)(hua)碳(tan)(tan)(tan)進(jin)(jin)(jin)行(xing)碳(tan)(tan)(tan)化(hua)(hua)(hua),當碳(tan)(tan)(tan)化(hua)(hua)(hua)時(shi)懸浮液(ye)的(de)PH值等于7時(shi)為反響終點,此時(shi)可(ke)引入(ru)(ru)活(huo)(huo)化(hua)(hua)(hua)劑(ji),對生(sheng)成(cheng)的(de)碳(tan)(tan)(tan)酸鈣(gai)(gai)(gai)進(jin)(jin)(jin)行(xing)表面(mian)處(chu)理(li)(li)。有干(gan)法表面(mian)處(chu)理(li)(li)和濕法表面(mian)處(chu)理(li)(li), 一般選(xuan)用(yong)(yong)濕法表面(mian)處(chu)理(li)(li)工(gong)(gong)藝(yi),因該法可(ke)制得(de)(de)活(huo)(huo)化(hua)(hua)(hua)度(du)高,松散(san)功用(yong)(yong)好,透(tou)明性(xing)(xing)高的(de)活(huo)(huo)性(xing)(xing)碳(tan)(tan)(tan)酸鈣(gai)(gai)(gai)。目前(qian)增加活(huo)(huo)化(hua)(hua)(hua)劑(ji)一般有酞酸酯偶(ou)聯(lian)劑(ji)、硬脂酸、木質素(su)等,用(yong)(yong)量約(yue)1%-5%。完(wan)成(cheng)了前(qian)面(mian)的(de)化(hua)(hua)(hua)學處(chu)理(li)(li)后,對料液(ye)脫水(shui)分別、單調(diao)制得(de)(de)白度(du)高的(de)制品。