工(gong)業副(fu)產石膏簡介

工(gong)業(ye)副(fu)(fu)產石(shi)(shi)(shi)膏是指在化工(gong)生產過(guo)程(cheng)中(zhong)所(suo)得的(de)(de)以CaSO4·2H2O或CaSO4·H2O為主要成分的(de)(de)副(fu)(fu)產品,稱(cheng)為工(gong)業(ye)副(fu)(fu)產石(shi)(shi)(shi)膏。目前排(pai)放量較大(da)的(de)(de)有脫硫(liu)石(shi)(shi)(shi)膏、磷(lin)石(shi)(shi)(shi)膏、氟石(shi)(shi)(shi)膏、鹽石(shi)(shi)(shi)膏等。工(gong)業(ye)副(fu)(fu)產石(shi)(shi)(shi)膏含有超過(guo)10%的(de)(de)游離水。我公(gong)司(si)結(jie)合國內外(wai)化學石(shi)(shi)(shi)膏制備(bei)建(jian)筑石(shi)(shi)(shi)膏粉的(de)(de)成功經驗，采(cai)用二步法生產工(gong)藝(yi)制備(bei)建(jian)筑石(shi)(shi)(shi)膏粉。