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id="mjssoriesdx" class="mianbao">您現(xiàn)在的位置：<a href="/">首頁(yè)</a> >> <a href="/article.html">技術(shù)文章</a> >> D113陽(yáng)離子交換樹脂</div> <div id="mjssoriesdx" class="about_con"> <div id="mjssoriesdx" class="newstit">D113陽(yáng)離子交換樹脂</div> <div id="mjssoriesdx" class="newstime"> <span id="mjssoriesdx" class="skim"><em>瀏覽次數(shù)：</em>2159</span><span id="mjssoriesdx" class="skimtim"><em>發(fā)布日期：</em>2020-05-29 </span> </div> <p>D113陽(yáng)離子交換樹脂<br />D113陽(yáng)離子交換樹脂?！纠确换ぁ课夜緭碛幸恢в蓪＜?、教授組成的專業(yè)科研隊(duì)伍，以大專院?？萍汲晒麨榧夹g(shù)依托，憑借雄厚的實(shí)力、的生產(chǎn)設(shè)備、的檢測(cè)手段、科學(xué)嚴(yán)謹(jǐn)?shù)墓芾?，產(chǎn)品達(dá)到國(guó)家標(biāo)準(zhǔn)、電力標(biāo)準(zhǔn)、石化標(biāo)準(zhǔn)。廣泛應(yīng)用于冶金、電力、化工、石油、造紙、醫(yī)藥、船舶和汽車制造等行業(yè)。<br />我公司以節(jié)能、綠色環(huán)保、可持續(xù)發(fā)展為奮斗目標(biāo)；以質(zhì)量過(guò)硬、和諧共贏、真誠(chéng)服務(wù)為工作導(dǎo)向；以創(chuàng)求發(fā)展；以誠(chéng)信贏客戶；一貫秉承以客戶利益至上為宗旨。<br />根據(jù)再生周期試驗(yàn)結(jié)果，取60mL鮮樹脂進(jìn)行連續(xù)1000BV通水倍數(shù)的多批次吸附處理，然后將樹脂分為3等分分別進(jìn)行靜態(tài)攪拌再生、動(dòng)態(tài)順流再生和動(dòng)態(tài)逆流再生。其中再生液均為10NaCl溶液，再生液體積為200mL，順流再生與逆流再生的再生液流量為10mL/min。經(jīng)3種再生方式處理后的樹脂重進(jìn)行通水倍數(shù)試驗(yàn)，以考察不同再生方式對(duì)再生樹脂去除有機(jī)物性能的影響，<br />我國(guó)工業(yè)化程度的提高，自然水體中的有機(jī)物含量日益增加，嚴(yán)重影響工業(yè)給水的正常運(yùn)行然而水中有機(jī)物的控制問題至今未得到有效解決，因此開發(fā)型水處理工藝，使其能經(jīng)濟(jì)、地去除水中有機(jī)物具有重大意義。該樹脂是以聚丙烯為母體的季銨型離子交換樹脂，通過(guò)可交換離子(Cl-)與水中帶負(fù)電的天然有機(jī)物(NOM)進(jìn)行離子交換從而達(dá)到凈水目的。<br />與傳統(tǒng)離子交換樹脂相比，樹脂對(duì)有機(jī)物去除效率高、交換容量大，且樹脂顆粒內(nèi)部含磁核，可使樹脂相互聚集成團(tuán)實(shí)現(xiàn)快速沉淀因此，與其他離子交換樹脂不同，可在攪拌式反應(yīng)器中進(jìn)行吸附，改變了吸附柱式的吸附模式具有廣泛應(yīng)用前景。<br />現(xiàn)代則廣泛應(yīng)用合成樹脂，例如：醇酸樹脂、丙烯酸樹脂、氯化橡膠樹脂、環(huán)氧樹脂等。<br />值得說(shuō)明的是，由于工業(yè)鹽酸含鐵量較高（可能以FeCl4-形態(tài)存在），當(dāng)酸洗被鐵污染的陰樹脂時(shí)，不僅不能清洗出樹脂中的鐵，相反還會(huì)交換到該樹脂上去。因此，酸洗被鐵污染的陰樹脂宜用化學(xué)純的鹽酸。<br />如果陰樹脂既被有機(jī)物污染,又被鐵離子及其氧化物污染,則應(yīng)首先除去鐵離子及其氧化物,而后再除去有機(jī)物。利用超聲波清洗被污染的陰、陽(yáng)離子交換脂是近年來(lái)應(yīng)用的一項(xiàng)技術(shù)。它是利用高頻率的超聲振動(dòng)所起的空化作用，使樹脂的各種污染受到松動(dòng)、破壞，進(jìn)而轉(zhuǎn)入到水中被反洗水沖走。<br />三離子交換的基本原理<br />離子交換的選擇性定義為離子交換劑對(duì)于某些離子顯示優(yōu)先活性的性質(zhì)。<br />離子交換樹脂吸附各種離子的能力不一，有些離子易被交換樹脂吸附，<br />但吸著后要把它置換下來(lái)就比較困難；而另一些離子很難被吸著，但被置換下來(lái)卻比較容易，<br />這種性能稱為離子交換的選擇性。<br />離子交換樹脂對(duì)水中不同離子的選擇性與樹脂的交聯(lián)度、交換基團(tuán)、可交換離子的性質(zhì)、水中離子的濃度和水的溫度等因素有關(guān)。<br />離子交換作用即溶液中的可交換離子與交換基團(tuán)上的可交換離子發(fā)生交換。<br />一般來(lái)說(shuō)，離子交換樹脂對(duì)價(jià)數(shù)較高的離子的選擇性較大。<br />大孔樹脂吸附條件<br />吸附條件和解吸附條件的選擇直接影響著大孔吸附樹脂吸附工藝的好壞,因而在整個(gè)工藝過(guò)程中應(yīng)綜合考慮各種因素,確定佳吸附解吸條件。影響樹脂吸附的因素很多,主要有被分離成分性質(zhì)(極性和分子大小等)、上樣溶劑的性質(zhì)(溶劑對(duì)成分的溶解性、鹽濃度和PH值)、上樣液濃度及吸附水流速等。通常,極性較大分子適用中極性樹脂上分離,極性小的分子適用非極性樹脂上分離。體積較大化合物選擇較大孔徑樹脂。上樣液中加入適量無(wú)機(jī)鹽可以增大樹脂吸附量。酸性化合物在酸性液中易于吸附,堿性化合物在堿性液中易于吸附,中性化合物在中性液中吸附。一般上樣液濃度越低越利于吸附。對(duì)于滴速的選擇,則應(yīng)保證樹脂可以與上樣液充分接觸吸附為佳。影響解吸條件的因素有洗脫劑的種類、濃度、pH值、流速等。洗脫劑可用甲醇、乙醇、丙酮、乙酸乙酯等,應(yīng)根據(jù)不同物制裁在樹脂上吸附力的強(qiáng)弱,選擇不同的洗脫劑和不同的洗脫劑濃度進(jìn)行洗脫。通過(guò)改變洗脫劑的pH值可使吸附物改變分子形態(tài),易于洗脫下來(lái)。洗脫流速一般控制在0.5～5mL/min。<br />常見的聚苯乙烯苯磺酸樹脂，以苯乙烯和二乙烯苯交聯(lián)共聚體為骨架，以磺酸基為功能團(tuán)，當(dāng)樹脂浸泡在水溶液中，水滲入樹脂相，功能團(tuán)電離產(chǎn)生可供交換的游離離子，如上式，聯(lián)結(jié)在樹脂骨架上不能自由運(yùn)動(dòng)，使樹脂帶上固定的電荷，被稱為固定離子，與固定離子電荷相反的離子（如）稱反離子，在樹脂相內(nèi)形成一種類似高分子電解質(zhì)的“溶液”，外來(lái)離子擴(kuò)散入樹脂相，便能置換這些反離子，而發(fā)生。<br />離子交換樹脂是一類帶有功能基的網(wǎng)狀結(jié)構(gòu)的高分子化合物，它由不溶性的三維空間網(wǎng)狀骨架、連接在骨架上的功能基團(tuán)和功能基團(tuán)上帶有相反電荷的可交換離子三部分構(gòu)成。<br />離子交換樹脂可分為陽(yáng)離子交換樹脂、陰離子交換樹脂和兩性離子交換樹脂。<br />離子交換樹脂不溶于水和一般溶劑。<br />大多數(shù)制成顆粒狀，也有一些制成纖維狀或粉狀。樹脂顆粒的尺寸一般在0.3～1.2mm范圍內(nèi)，大部分在0.4～0.6mm之間。<br /><br />D113陽(yáng)離子交換樹脂<br />可以進(jìn)行二次處理，供使用。9)業(yè)和食品工業(yè)，請(qǐng)根據(jù)特殊要求對(duì)樹脂進(jìn)行處理。10)用戶可以根據(jù)不同的應(yīng)用過(guò)程將樹脂轉(zhuǎn)換成所需的離子類型。長(zhǎng)期使用容易受到懸浮物、膠體物質(zhì)、有機(jī)物、、藻類、鐵、錳的污染，導(dǎo)致離子交換能力下降甚至喪失。離子交換樹脂由分類名稱、骨架（或基因）名稱、基本名稱組成?？紫督Y(jié)構(gòu)分凝膠型和大孔型兩種，凡具有物理孔結(jié)構(gòu)的稱大孔型樹脂，在全名稱前加“大孔”。分類屬酸性的應(yīng)在名稱前加“陽(yáng)”，分類屬堿性的，在名稱前加“陰”。如：大孔強(qiáng)酸性苯乙烯系陽(yáng)離子交換樹脂。因此，需要根據(jù)情況不規(guī)則地活化樹脂。活化方法可根據(jù)污染狀況和條件確定。普通陽(yáng)離子樹脂在軟化過(guò)程中易受Fe3+污染，浸泡后可被稀釋。</p> <div class="mjssoriesdx" id="news_sx"><li id="mjssoriesdx" class="sx_left">上一篇：<a href="/Article-2237729.html">201×7陰離子交換樹脂</a> <br />下一篇：<a href="/Article-2237727.html">D001FC陽(yáng)離子交換樹脂</a></li></div> </div> </div> </div> </div> <div id="mjssoriesdx" class="clear"></div> <div class="mjssoriesdx" id="footer"> <div id="mjssoriesdx" class="footernr"> <div id="mjssoriesdx" class="footersub1"> <p>工作時(shí)間</p> 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