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尊重同事介紹,進(jìn)來(lái)看一下強(qiáng)酸性陽(yáng)離子交換樹(shù)脂技術(shù)介紹,詳細(xì)分享幾點(diǎn)要點(diǎn)。</div> <div id="jnvlddtjlh3" class="about_con"> <div id="jnvlddtjlh3" class="newstit">尊重同事介紹,進(jìn)來(lái)看一下強(qiáng)酸性陽(yáng)離子交換樹(shù)脂技術(shù)介紹,詳細(xì)分享幾點(diǎn)要點(diǎn)。</div> <div id="jnvlddtjlh3" class="newstime"> <span id="jnvlddtjlh3" class="skim"><em>瀏覽次數(shù)：</em>1220</span><span id="jnvlddtjlh3" class="skimtim"><em>發(fā)布日期：</em>2020-03-12 </span> </div> <div><span style="font-size: 16px;"><span style="font-family: 宋體;">　　1、定義<br /> </span></span></div><div><span style="font-size: 16px;"><span style="font-family: 宋體;">　　離子交換樹(shù)脂是一類(lèi)帶有功能基的網(wǎng)狀結(jié)構(gòu)的高分子化合物：<br /> </span></span></div><div><span style="font-size: 16px;"><span style="font-family: 宋體;">　　1.不溶性的三維空間網(wǎng)狀骨架<br /> </span></span></div><div><span style="font-size: 16px;"><span style="font-family: 宋體;">　　2.連接在骨架上的功能基團(tuán)<br /> </span></span></div><div><span style="font-size: 16px;"><span style="font-family: 宋體;">　　3.功能集團(tuán)上帶有相反電荷的可交換離子<br /> </span></span></div><div><span style="font-size: 16px;"><span style="font-family: 宋體;">　　2、分類(lèi)<br /> </span></span></div><div><span style="font-size: 16px;"><span style="font-family: 宋體;">　　1.按母體材質(zhì)分為：無(wú)機(jī)和有機(jī)<br /> </span></span></div><div><span style="font-size: 16px;"><span style="font-family: 宋體;">　　2.按結(jié)構(gòu)特征分為：大孔、等孔、凝膠型<br /> </span></span></div><div><span style="font-size: 16px;"><span style="font-family: 宋體;">　　3.按化學(xué)活性基團(tuán)性質(zhì)(交換基或官能團(tuán))：弱酸性、<span style="color: rgb(0, 0, 0);"><strong><a href="http:///SonList-1951190.html" target="_blank"><span style="color: rgb(0, 0, 0);">強(qiáng)酸性陽(yáng)離子交換樹(shù)脂</span></a></strong></span>。陰離子交換樹(shù)脂(弱堿性、強(qiáng)堿性)。<br /> </span></span></div><div><span style="font-size: 16px;"><span style="font-family: 宋體;">　　實(shí)際使用上，常將這些樹(shù)脂轉(zhuǎn)變?yōu)槠渌x子形式運(yùn)行，以適應(yīng)各種需要。例如常將<strong>強(qiáng)酸性陽(yáng)離子交換樹(shù)脂</strong>與氯化鈉作用，轉(zhuǎn)變成鈉型樹(shù)脂再使用。工作時(shí)，鈉型樹(shù)脂放出鈉離子，與溶液中的鈣離子、鎂離子等陽(yáng)離子交換吸附，除去這些離子。反應(yīng)式?jīng)]有放出氫離子，可避免容易PH下降和由此產(chǎn)生的副作用，如設(shè)備腐蝕。<br /> </span></span></div><div><span style="font-size: 16px;"><span style="font-family: 宋體;">　　4.按基體種類(lèi)分為：苯乙烯系樹(shù)脂和丙烯酸系樹(shù)脂。<br /> </span></span></div><div><span style="font-size: 16px;"><span style="font-family: 宋體;">　　3、理化性質(zhì)<br /> </span></span></div><div><span style="font-size: 16px;"><span style="font-family: 宋體;">　　離子交換樹(shù)脂不溶于水和一般溶劑。它們具有較高的機(jī)械強(qiáng)度，化學(xué)性質(zhì)穩(wěn)定，在正常情況下有較長(zhǎng)的使用壽命。大多數(shù)制成顆粒狀，也有一些制成纖維狀或粉狀。樹(shù)脂顆粒的尺寸一般在0.3~1.2mm以?xún)?nèi)，大部分在0.4~0.6mm之間。<br /> </span></span></div><div><span style="font-size: 16px;"><span style="font-family: 宋體;">　　4、化學(xué)性能<br /> </span></span></div><div><span style="font-size: 16px;"><span style="font-family: 宋體;">　　1.再生：離子交換反應(yīng)的可逆性交換的逆反應(yīng)。<br /> </span></span></div><div><span style="font-size: 16px;"><span style="font-family: 宋體;">　　2.酸堿性：樹(shù)脂在水中電離出H+和OH-，表現(xiàn)出酸堿性。樹(shù)脂的酸堿性受Ph值影響。<br /> </span></span></div><div><span style="font-size: 16px;"><span style="font-family: 宋體;">　　3.選擇性：樹(shù)脂對(duì)水中某種離子能優(yōu)先交換的性能稱(chēng)為選擇性，選擇性大小用選擇性系數(shù)來(lái)表征。交換順序：優(yōu)先高化合價(jià)的，其次原子序數(shù)大的<br /> </span></span></div><div><span style="font-size: 16px;"><span style="font-family: 宋體;">　<strong>　強(qiáng)酸性陽(yáng)離子交換樹(shù)脂</strong>：<br /> </span></span></div><div><span style="font-size: 16px;"><span style="font-family: 宋體;">　　Fe2+>Al3+>Ca2+>Mg2+>K+>Na+>H+<br /> </span></span></div><div><span style="font-size: 16px;"><span style="font-family: 宋體;">　　弱酸性陽(yáng)離子交換樹(shù)脂:<br /> </span></span></div><div><span style="font-size: 16px;"><span style="font-family: 宋體;">　　H+>Fe2+>Al3+>Ca2+>Mg2+>K+>Na+<br /> </span></span></div><div><span style="font-size: 16px;"><span style="font-family: 宋體;">　　強(qiáng)堿性陰離子交換樹(shù)脂：<br /> </span></span></div><div><span style="font-size: 16px;"><span style="font-family: 宋體;">　　SO42->NO3->Cl->OH->F->HCO3->HSIO3-<br /> </span></span></div><div><span style="font-size: 16px;"><span style="font-family: 宋體;">　　弱酸性陰離子交換樹(shù)脂：<br /> </span></span></div><div><span style="font-size: 16px;"><span style="font-family: 宋體;">　　OH->SO42->NO3->Cl->OH->F->HCO3->HSIO3-<br /> </span></span></div><div><span style="font-size: 16px;"><span style="font-family: 宋體;">　　交換容量：表示樹(shù)脂的交換能力。通常用EV(mmol/ml濕樹(shù)脂)表示，也可用EW(mmol/g干樹(shù)脂)表示。<br /> </span></span></div> <div class="jnvlddtjlh3" id="news_sx"><li id="jnvlddtjlh3" class="sx_left">上一篇：<a href="/News-1251030.html">拋光樹(shù)脂使用指南,從兩個(gè)方法幫你解決</a> <br />下一篇：<a href="/News-1242992.html">詳細(xì)解說(shuō)弱堿性陰離子交換樹(shù)脂在工業(yè)廢水處理中的研究，過(guò)程真仔細(xì)！</a></li></div> </div> </div> </div> </div> <div id="jnvlddtjlh3" class="clear"></div> <div class="jnvlddtjlh3" id="footer"> <div id="jnvlddtjlh3" 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