聚丙烯酰胺產(chan)(chan)品(pin)廣泛(fan)用于城鎮供水(shui)(shui)(shui)、排(pai)水(shui)(shui)(shui)、以(yi)及(ji)化工(gong)(gong)(gong)、冶金、電力、油(you)田(tian)、造紙、工(gong)(gong)(gong)業污(wu)水(shui)(shui)(shui)處理、城市供水(shui)(shui)(shui)，電力，石油(you)，化工(gong)(gong)(gong)，鋼鐵，環保(bao)，造紙，洗煤選礦，制香，土壤保(bao)水(shui)(shui)(shui)等行(xing)業。各(ge)個(ge)廠家的(de)聚丙烯(xi)酰胺(an)在藝(yi)(yi)(yi)配方上有(you)細(xi)微的(de)差(cha)別(bie)。聚丙烯(xi)酰胺(an)在工(gong)(gong)(gong)藝(yi)(yi)(yi)配方上有(you)較明顯的(de)差(cha)別(bie)，比(bi)如(ru)目前(qian)(qian)生產(chan)(chan)超高相對(dui)分(fen)(fen)子(zi)(zi)質量(liang)(liang)聚丙烯(xi)酰胺(an)的(de)生產(chan)(chan)工(gong)(gong)(gong)藝(yi)(yi)(yi)，同樣是低溫引發(fa)，就有(you)前(qian)(qian)加堿共(gong)水(shui)(shui)(shui)解工(gong)(gong)(gong)藝(yi)(yi)(yi)和后加堿后水(shui)(shui)(shui)解工(gong)(gong)(gong)藝(yi)(yi)(yi)之分(fen)(fen)，兩(liang)種方法各(ge)有(you)利弊，前(qian)(qian)加堿共(gong)水(shui)(shui)(shui)解工(gong)(gong)(gong)藝(yi)(yi)(yi)過(guo)程簡單，但存在水(shui)(shui)(shui)解傳熱易產(chan)(chan)生交聯(lian)和相對(dui)分(fen)(fen)子(zi)(zi)質量(liang)(liang)損失大的(de)問題，后加堿后水(shui)(shui)(shui)解雖然(ran)工(gong)(gong)(gong)藝(yi)(yi)(yi)過(guo)程增加了，但水(shui)(shui)(shui)解均勻不易產(chan)(chan)生交聯(lian)，對(dui)產(chan)(chan)品(pin)相對(dui)分(fen)(fen)子(zi)(zi)質量(liang)(liang)損失也不大。

目前國內外的(de)(de)聚(ju)丙(bing)烯酰胺生產技(ji)術基本上(shang)(shang)(shang)(shang)與上(shang)(shang)(shang)(shang)述的(de)(de)第三階(jie)段相似(si)，只是在設(she)備(bei)上(shang)(shang)(shang)(shang)有(you)(you)些(xie)不同(tong)：聚(ju)合釜大小及類型(有(you)(you)固定(ding)錐形釜，也(ye)有(you)(you)可旋轉的(de)(de)錐形釜，聚(ju)合反(fan)應完成后(hou)，聚(ju)合釜倒(dao)(dao)轉將聚(ju)丙(bing)烯酰胺膠塊(kuai)倒(dao)(dao)出)、造粒(li)方式(shi)(shi)(有(you)(you)機械造粒(li)、切(qie)割造粒(li)，也(ye)有(you)(you)濕式(shi)(shi)造粒(li)即分散(san)液中造粒(li))、干(gan)燥方式(shi)(shi)(有(you)(you)采用(yong)穿流(liu)回轉干(gan)燥，也(ye)有(you)(you)用(yong)振動(dong)流(liu)化(hua)床(chuang)干(gan)燥)及粉碎方式(shi)(shi)。這些(xie)不同(tong)中有(you)(you)些(xie)是設(she)備(bei)質量(liang)上(shang)(shang)(shang)(shang)有(you)(you)差(cha)異(yi)(yi)，有(you)(you)些(xie)是采用(yong)的(de)(de)具體方式(shi)(shi)上(shang)(shang)(shang)(shang)的(de)(de)油差(cha)異(yi)(yi)，但總的(de)(de)來看，聚(ju)合技(ji)術趨(qu)向(xiang)于固定(ding)錐形釜聚(ju)合，振動(dong)流(liu)化(hua)床(chuang)干(gan)燥技(ji)術。

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