
今天南陽鈣粉廠家跟我們講(jiang)講(jiang)活(huo)(huo)(huo)性(xing)碳(tan)(tan)酸鈣(gai)(gai)的(de)生(sheng)(sheng)(sheng)產工(gong)藝,讓(rang)我們可以(yi)更好(hao)的(de)了(le)解我們的(de)產品(pin)。活(huo)(huo)(huo)性(xing)碳(tan)(tan)酸鈣(gai)(gai)的(de)生(sheng)(sheng)(sheng)產工(gong)藝與(yu)生(sheng)(sheng)(sheng)產輕質碳(tan)(tan)酸鈣(gai)(gai)大致相同,但(dan)在碳(tan)(tan)化(hua)(hua)(hua)這一(yi)工(gong)序中(zhong)(zhong)應嚴(yan)格(ge)操控條件,使(shi)生(sheng)(sheng)(sheng)成(cheng)(cheng)微細的(de)碳(tan)(tan)酸鈣(gai)(gai)顆(ke)粒,再用活(huo)(huo)(huo)化(hua)(hua)(hua)劑進行表(biao)(biao)面處(chu)理。行將(jiang)石(shi)灰石(shi)與(yu)煤(mei)混合,其配比(bi)約(yue)7.5左右(you),于900-1000℃ 溫(wen)度(du)下在石(shi)灰窯中(zhong)(zhong)緞燒,二(er)氧(yang)化(hua)(hua)(hua)碳(tan)(tan)經(jing)洗氣除塵后送碳(tan)(tan)化(hua)(hua)(hua)塔,生(sheng)(sheng)(sheng)石(shi)灰進消(xiao)化(hua)(hua)(hua)槽,用80-90℃ 的(de)熱水(shui)充(chong)分消(xiao)化(hua)(hua)(hua),制(zhi)成(cheng)(cheng)濃度(du)約(yue)9%的(de)乳液(ye),進入碳(tan)(tan)化(hua)(hua)(hua)塔,通二(er)氧(yang)化(hua)(hua)(hua)碳(tan)(tan)進行碳(tan)(tan)化(hua)(hua)(hua),當碳(tan)(tan)化(hua)(hua)(hua)時懸浮液(ye)的(de)PH值等于7時為反響終點,此時可引(yin)入活(huo)(huo)(huo)化(hua)(hua)(hua)劑,對(dui)(dui)生(sheng)(sheng)(sheng)成(cheng)(cheng)的(de)碳(tan)(tan)酸鈣(gai)(gai)進行表(biao)(biao)面處(chu)理。有(you)干法表(biao)(biao)面處(chu)理和濕(shi)法表(biao)(biao)面處(chu)理, 一(yi)般(ban)選(xuan)用濕(shi)法表(biao)(biao)面處(chu)理工(gong)藝,因該(gai)法可制(zhi)得活(huo)(huo)(huo)化(hua)(hua)(hua)度(du)高(gao),松(song)散功用好(hao),透明性(xing)高(gao)的(de)活(huo)(huo)(huo)性(xing)碳(tan)(tan)酸鈣(gai)(gai)。目(mu)前(qian)增加活(huo)(huo)(huo)化(hua)(hua)(hua)劑一(yi)般(ban)有(you)酞酸酯偶聯(lian)劑、硬(ying)脂(zhi)酸、木質素等,用量(liang)約(yue)1%-5%。完成(cheng)(cheng)了(le)前(qian)面的(de)化(hua)(hua)(hua)學處(chu)理后,對(dui)(dui)料液(ye)脫水(shui)分別(bie)、單調制(zhi)得白度(du)高(gao)的(de)制(zhi)品(pin)。