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class="container clearfix tcPro"><section class="home-main container clearfix"><div id="3sj9smt" class="twoCol"><div id="h7oykjv" class="page-proshow clearfix"><p class="current"> 當前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_huagong/">化工</a>?<a href="http://www.cdcfah.com/cp/second-_sysqm/">實驗室器皿</a>?<a href="http://www.cdcfah.com/cp/third-sysqm_qtsysyp/">其他實驗室用品</a>?舟山2-甲基四氫呋喃制造廠家上海蔚云化工供應(yīng)</p><div id="azrq8bc" class="leftbox clearfix"><h1>舟山2-甲基四氫呋喃制造廠家上海蔚云化工供應(yīng)</h1><div id="2jl9eyk" class="proBig"><div id="smoikwy" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shweiyun/637389623961490638/1355180.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="qfhw8y3" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shweiyun/637389623961490638/1355180.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="u777wdp" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</span>面議</p><p><span>所在地：</span>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>舟山2-甲基四氫呋喃制造廠家,2-甲基四氫呋喃</p><p><span>***更新：</span>2020-12-29 06:17:37</p><p><span id="click" >瀏覽次數(shù)：3次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="dnkz8rl" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海蔚云化工有限公司</a></p><p><span>聯(lián)系人：</span>盛志華</p><p><span>郵箱: </span>3273929241@qq.com</p><p><span>電話: </span>18721726651</p><p><span>傳真: </span>021_</p><p><span>網(wǎng)址: </span>http://www.weiyunhuagong.com</p><p><span>手機: </span>021-52909928</p><p><span>地址: </span>靜安區(qū)靈石路709號55幢A2113室</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="furjgnp" class="page-proshow02"><p class="title">詳細說明</p><div id="r3easjl" class="box"><p><p style="text-indent:25px">THF自身可縮聚（經(jīng)陽離子引發(fā)開環(huán)再聚合）成聚四亞甲基醚二醇（PTMEG），也稱四氫呋喃均聚醚。PTMEG與甲苯二異氰酸酯（TDI）制成耐磨、耐油、低溫性能好、強度高的特種橡膠；與對苯二甲酸二甲酯和1,4-丁二醇制成嵌段聚醚聚酯彈性Chemicalbook材料。相對分子質(zhì)量為2000的PTMEG與對亞甲基雙（4-苯基）二異氰酸酯（MDI）制成聚氨酯彈性纖維（氨綸，即SPANDEX纖維）、特種橡膠和一些特殊用途涂料的原料。在有機合成方面，用于生產(chǎn)四氫噻吩、1.4-二氯乙烷、2.3-二氯四氫呋喃、戊內(nèi)酯、丁內(nèi)酯和吡咯烷酮等。在醫(yī)藥工業(yè)方面，舟山2-甲基四氫呋喃制造廠家，THF用于合成咳必清、利復(fù)霉素、黃體酮和一些藥。THF經(jīng)硫化氫處理生成四氫硫酚，可作燃料氣中的臭味劑（識別添加劑），舟山2-甲基四氫呋喃制造廠家。THF還可用做合成革的表面處理劑，舟山2-甲基四氫呋喃制造廠家。聚四亞甲基醚二醇，又稱聚四氫呋喃。舟山2-甲基四氫呋喃制造廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="舟山2-甲基四氫呋喃制造廠家,2-甲基四氫呋喃" src="https://tyunfile.71360.com/UploadFile/shweiyun/637389623961490638/1355180.png"></div><p style="text-indent:25px">利用微生物還原汞的功能,可使金屬汞沉淀回收,揮發(fā)的汞可用活性炭吸附。微生物除汞方法主要有選育高效抗汞微生物處理含汞廢水：如應(yīng)用選育的高效抗汞菌，假單胞桿菌 K62可處理含甲基汞、乙基汞、**、乙酸汞、硫酸汞、氧化汞和**等廢水，金屬汞回收率達80%以上，菌體能重復(fù)用三次。采用除汞：依靠活性污泥中的抗汞菌將汞還原為金屬汞，活性污泥系統(tǒng)本身還可吸附汞。采用濾池法除汞：用馴化活性污泥掛膜處理生化需氧量 (BOD)低的含汞廢水。使用硫化氫沉淀汞：借助于其他微生物產(chǎn)生的硫化氫與水溶性汞結(jié)合成硫化汞，硫化汞溶度積很小，可以在沉淀后除去。上海2-甲基四氫呋喃廠家定做甲烷分子中去掉一個氫原子后剩下的電中性的一價基團。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="舟山2-甲基四氫呋喃制造廠家,2-甲基四氫呋喃" src="https://tyunfile.71360.com/UploadFile/shweiyun/637389624164107853/4550822.png"></div><p style="text-indent:25px">工業(yè)生產(chǎn)較早以糖醛為原料，將糖醛與蒸氣的混合物通入填充鋅-鉻-錳金屬氧化物（或鈀）催化劑的反應(yīng)器，于400-420℃脫去羰基而成呋喃；然后以骨架鎳為催化劑，于80-120℃呋喃加氫制得四氫呋喃。該法生產(chǎn)1噸四氫呋喃，約需消耗3噸多糖醛。后來發(fā)展的生產(chǎn)方法有許多種，工業(yè)化的方法有1,4-丁二醇催化脫水環(huán)合法，因為丁二醇是由乙炔和甲醛制得的，此法稱雷由法（Reppe法）；利用氯丁橡膠單體氯丁二烯的副產(chǎn)物1,4-二氯丁烯生產(chǎn)四氫呋喃，稱為二氯丁烯法；發(fā)展了以順酐為原料的催化加氫法?？啡┓ǎ河煽啡┟擊驶蛇秽偌託涠??！∵@是工業(yè)上較早生產(chǎn)四氫呋喃的方法之一?？啡┲饕捎衩仔镜绒r(nóng)副產(chǎn)品水解制造。該法污染嚴重，不利于大規(guī)模生產(chǎn)，已逐步被淘汰。</p><p style="text-indent:25px">四氫呋喃的沸點比較低，將其調(diào)入汽油后使汽油的餾程溫度降低。這一性質(zhì)讓生產(chǎn)超高辛烷值汽油的煉油廠獲得了很大的經(jīng)濟效益。采用四氫呋喃作為反應(yīng)溶劑，使反應(yīng)產(chǎn)物和催化劑容易分離，使3-HPA的濃度提高到35%以上。采用水萃取3-HPA，使鈷催化劑的循環(huán)使用率達99.6%，通過控制羰基化反應(yīng)中的水含量和3-HPA的濃度，使高沸點副產(chǎn)物很少，生成3-HPA選擇性大于90%，使該技術(shù)的工業(yè)化成為可能。產(chǎn)品運輸：運輸車輛應(yīng)配備相應(yīng)消防器材及泄漏應(yīng)急處理設(shè)備。嚴禁與氧化劑、食用化學(xué)品等混裝混運。禁止使用易產(chǎn)生火花的機械設(shè)備和工具裝卸。夏季較好早晚運輸。運輸途中應(yīng)防暴曬、雨淋，防高溫。中途停留時應(yīng)遠離火種、熱源、高溫區(qū)。鐵路運輸時要禁止溜放。嚴禁用木船、水泥船散裝運輸。運輸工具上應(yīng)根據(jù)相關(guān)運輸要求張貼危險標志、公告。甲基呋喃也可用于合成戊二烯、戊二醇、乙酰丙醇及酮類和2-甲基四氫呋喃。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="舟山2-甲基四氫呋喃制造廠家,2-甲基四氫呋喃" src="https://tyunfile.71360.com/UploadFile/shweiyun/637389624027184007/8887733.png"></div><p style="text-indent:25px">四氫呋喃主要用途是作高分子聚合物的前體四氫呋喃是一個雜環(huán)有機化合物，分子式為C4H8O。屬于醚類，是芳香族化合物呋喃的完全氫化產(chǎn)物，是一種無色、可與水混溶、在常溫常壓下有較小粘稠度的有機液體。這種環(huán)狀醚的化學(xué)式可寫作(CH2)4O。由于它的液態(tài)范圍很長，所以是一種常用的中等極性非質(zhì)子性溶劑。它的主要用途是作高分子聚合物的前體。盡管THF的氣味和化學(xué)性質(zhì)與**很相似，但是麻醉效果卻很差。用作溶劑、有機合成的原料。用作色譜分析試劑、有機溶劑及尼龍66中間體。四氫呋喃又名一氧五環(huán)、氧雜環(huán)戊烷、四亞甲基氧，是合成農(nóng)藥苯丁錫的中間體，另外，可直接用于制合成纖維、合成樹脂、合成橡膠，也是許多聚合材料、精密磁帶和電鍍工業(yè)的溶劑，還用于制己二腈、己二酸、己二胺、丁二酸、丁二醇、γ-丁內(nèi)酯等，在醫(yī)藥工業(yè)上，可用于生產(chǎn)咳必清、黃體酮、利復(fù)霉素和用作制藥溶劑等。四氫呋喃中的過氧化物可用酸化的碘化鉀溶液來檢驗。上海2-甲基四氫呋喃廠家定做</p><p style="text-indent:25px">甲基常出現(xiàn)在各種有機化合物中。舟山2-甲基四氫呋喃制造廠家</p><p style="text-indent:25px">呋喃和其衍生物為例如醫(yī)藥、除草劑和聚合物領(lǐng)域中的工業(yè)化學(xué)品的適用前體。呋喃可以轉(zhuǎn)化成四氫呋喃(THF)和1,4-丁二醇(1,4-BDO)。THF和1,4-BDO為在工業(yè)上用作溶劑并且用于彈性纖維(如氨綸/彈性纖維)、聚丁酸對苯二甲酸酯和γ丁內(nèi)酯的衍生物的制造中的有價值的化學(xué)物質(zhì)。這些化學(xué)品通常通過多種途徑由從化石燃料獲得的石油化學(xué)原料以工業(yè)方式制得。用于生產(chǎn)1,4-BDO的一種工業(yè)途徑需要使乙炔與兩當量的甲醛反應(yīng)，隨后氫化所得的1,4-丁炔二醇以形成1,4-丁二醇。在替代方法中，將環(huán)氧丙烷轉(zhuǎn)化為烯丙醇。然后使烯丙醇氫甲酰化以形成4-羥基丁醛，其可以經(jīng)氫化以形成1,4-丁二醇。其它傳統(tǒng)的途徑使用丁二烯、乙酸烯丙酯或丁二酸作為起始物質(zhì)。1,4-丁二醇也可以產(chǎn)生為通過將粗正丁烷氧化為順丁烯二酸酐，接著催化氫化而制造四氫呋喃(THF)的方法中的副產(chǎn)物。近年來，更多工作聚焦于從可再生原料，如基于糖的材料產(chǎn)生化學(xué)品，包括1,4-BDO和THF。舟山2-甲基四氫呋喃制造廠家</p><p style="text-indent:25px">上海蔚云化工有限公司致力于化工，是一家貿(mào)易型公司。上海蔚云化工致力于為客戶提供良好的環(huán)戊酮，甲基異丙基酮，丙二胺，二甘醇胺，一切以用戶需求為中心，深受廣大客戶的歡迎。公司從事化工多年，有著創(chuàng)新的設(shè)計、強大的技術(shù)，還有一批**的專業(yè)化的隊伍，確保為客戶提供良好的產(chǎn)品及服務(wù)。在社會各界的鼎力支持下，持續(xù)創(chuàng)新，不斷鑄造***服務(wù)體驗，為客戶成功提供堅實有力的支持。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2612055.html</p></div></div></div></div></div><div id="877rm2n" class="page-right 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