
粉狀活(huo)(huo)(huo)性(xing)(xing)(xing)(xing)炭(tan)(tan)(tan)(tan)具體內容是(shi)定量得(de)活(huo)(huo)(huo)性(xing)(xing)(xing)(xing)炭(tan)(tan)(tan)(tan)在標(biao)(biao)準碘(dian)(dian)液中吸(xi)(xi)附碘(dian)(dian)得(de)多(duo)少,一(yi)般用來表(biao)示(shi)活(huo)(huo)(huo)性(xing)(xing)(xing)(xing)炭(tan)(tan)(tan)(tan)對小(xiao)分子(zi)雜質的(de)(de)吸(xi)(xi)附能力,實際(ji)對活(huo)(huo)(huo)性(xing)(xing)(xing)(xing)炭(tan)(tan)(tan)(tan)得(de)性(xing)(xing)(xing)(xing)能沒(mei)有什么意(yi)義,也就是(shi)說,碘(dian)(dian)值高得(de)活(huo)(huo)(huo)性(xing)(xing)(xing)(xing)炭(tan)(tan)(tan)(tan)不見得(de)就是(shi)好(hao),粉狀活(huo)(huo)(huo)性(xing)(xing)(xing)(xing)炭(tan)(tan)(tan)(tan)碘(dian)(dian)值表(biao)征活(huo)(huo)(huo)性(xing)(xing)(xing)(xing)炭(tan)(tan)(tan)(tan)略大于(yu)1.0nm微孔得(de)發達程度。由(you)于(yu)碘(dian)(dian)分子(zi)大小(xiao)為0.6nm左(zuo)右。碘(dian)(dian)值就表(biao)征活(huo)(huo)(huo)性(xing)(xing)(xing)(xing)炭(tan)(tan)(tan)(tan)大于(yu)0.6nm的(de)(de)有機物的(de)(de)吸(xi)(xi)附量,同(tong)時也表(biao)征了大于(yu)該1nm活(huo)(huo)(huo)性(xing)(xing)(xing)(xing)炭(tan)(tan)(tan)(tan)孔隙的(de)(de)多(duo)少。粉狀活(huo)(huo)(huo)性(xing)(xing)(xing)(xing)炭(tan)(tan)(tan)(tan)碘(dian)(dian)值的(de)(de)檢測(ce)方(fang)法粉狀活(huo)(huo)(huo)性(xing)(xing)(xing)(xing)炭(tan)(tan)(tan)(tan)作為一(yi)種優良(liang)的(de)(de)物理、化(hua)學吸(xi)(xi)附劑(ji),越(yue)(yue)(yue)(yue)來越(yue)(yue)(yue)(yue)受到人們的(de)(de)重視。隨著活(huo)(huo)(huo)性(xing)(xing)(xing)(xing)炭(tan)(tan)(tan)(tan)用途(tu)的(de)(de)增加(jia),粉狀活(huo)(huo)(huo)性(xing)(xing)(xing)(xing)炭(tan)(tan)(tan)(tan)的(de)(de)檢測(ce)方(fang)法也越(yue)(yue)(yue)(yue)來越(yue)(yue)(yue)(yue)多(duo)。但(dan)不同(tong)的(de)(de)檢測(ce)方(fang)法有可能會發生不同(tong)的(de)(de)性(xing)(xing)(xing)(xing)能指標(biao)(biao)。
碘值(zhi)(zhi)一直是評估活性(xing)(xing)炭吸附能(neng)力的標(biao)(biao)準。碘值(zhi)(zhi)越高直徑(jing)在(zai)2.0-8.0mm之間,大小(xiao)誤差(cha)在(zai)5%之間,顆粒越細越小(xiao)果殼(ke)活性(xing)(xing)炭質量越好。六個(ge)指(zhi)標(biao)(biao)教你區分(fen)果殼(ke)活性(xing)(xing)炭的好壞催化載體(ti)活性(xing)(xing)炭。
杏殼活性炭比表面(mian)積:
比表(biao)面(mian)積(ji)是(shi)將一克果殼(ke)活(huo)性炭內(nei)部空間產開(kai)呈現(xian)一個面(mian),這個平面(mian)的面(mian)積(ji)就(jiu)(jiu)是(shi)果殼(ke)活(huo)性炭的比表(biao)面(mian)積(ji),比表(biao)面(mian)積(ji)大的果殼(ke)活(huo)性炭質量就(jiu)(jiu)越(yue)好(hao)。
機械強(qiang)(qiang)(qiang)度(du):機械強(qiang)(qiang)(qiang)度(du)決定了果殼活性炭的使用壽命(ming),機械強(qiang)(qiang)(qiang)度(du)越高,果殼活性炭強(qiang)(qiang)(qiang)度(du)就(jiu)越高,質量就(jiu)越好(hao)。
灰分:灰分主要是過客活性(xing)炭燒制后殘(can)留物,灰分越(yue)低說明果(guo)殼活性(xing)炭的燒制過程越(yue)規范,殘(can)留物也就越(yue)少(shao)。
決(jue)定果殼活性(xing)炭(tan)質(zhi)量的因(yin)素又(you)很多,只有通過各方面的綜合對比(bi),才能確保(bao)果殼活性(xing)炭(tan)的質(zhi)量。
粉(fen)狀活性炭的(de)(de)(de)(de)(de)微(wei)(wei)(wei)孔(kong)可(ke)以(yi)吸附(fu)低(di)分(fen)子(zi)量的(de)(de)(de)(de)(de)氣(qi)體和(he)溶(rong)液中的(de)(de)(de)(de)(de)小分(fen)子(zi),但分(fen)子(zi)量較(jiao)高的(de)(de)(de)(de)(de)分(fen)子(zi)不能(neng)進入微(wei)(wei)(wei)孔(kong)內,中孔(kong)提(ti)供進入微(wei)(wei)(wei)孔(kong)的(de)(de)(de)(de)(de)通道,本身又能(neng)吸附(fu)分(fen)子(zi)量較(jiao)高的(de)(de)(de)(de)(de)物(wu)質,大孔(kong)則兼有提(ti)供通道和(he)吸附(fu)的(de)(de)(de)(de)(de)作用。如(ru)果(guo)用活性炭吸附(fu)小分(fen)子(zi)物(wu)質,例如(ru)某些氣(qi)體(毒氣(qi))和(he)低(di)分(fen)子(zi)量的(de)(de)(de)(de)(de)有機物(wu),可(ke)以(yi)使用微(wei)(wei)(wei)孔(kong)較(jiao)多的(de)(de)(de)(de)(de)產品(pin);但如(ru)果(guo)要吸附(fu)較(jiao)大的(de)(de)(de)(de)(de)分(fen)子(zi),則要選用有較(jiao)多中孔(kong)的(de)(de)(de)(de)(de)產品(pin)。
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