? title_temp 对硝基苯乙酮,对基苯乙酮Є制?生产之步 - ֜宁ա安勤化学有限公?/title> <meta name="Keywords" content="瀵圭鍩鸿嫰涔欓叜"> <meta http-equiv="X-UA-Compatible" content="IE=EmulateIE7"> <link href="/template/NEST01021/lib/cms.css?4.1.0_0" rel="stylesheet" type="text/css" /> <link href="/template/NEST01021/lib/style.css" rel="stylesheet" type="text/css" /> <meta http-equiv="Cache-Control" content="no-transform" /> <script>var V_PATH="/";window.onerror=function(){ return true; };</script> </head> <body><h1><a href="http://btwhere.com/">һa׼һb׼պƬffff</a></h1> <div class="top_t"> <div class="top_in"> <div class="lc"> ֜宁ա安勤化学有限公司为免费提?a href="/">间硝基苯乙酮</a>?a href="/supply/"></a>?a href="/news/"></a>等相关信息发布和资讯,敬请关注! </div> <div class="topnav1"> <a href="/weibo/" rel="nofollow" target="_blank">企业微博</a> <a href="/sitemap.html" rel="nofollow" title="网站地图">网站地图</a> <a href="/sitemap.xml" rel="nofollow" >XML</a> <a><span style="cursor:hand" onclick="window.external.addfavorite('http://btwhere.com','对硝基苯乙酮,对基苯乙酮Є制?生产之步 - ֜宁ա安勤化学有限公?)">收藏站</span></a> </div> </div> </div> <div id="wrapper"> <div id="header"> <table width="100%" border="0" cellspacing="0" cellpadding="0" class="top"> <tr> <td class="logo"> <img src="/uploads/logo/20140412020230.png" alt="֜宁ա安勤化学有限公? /> </td> <td class="topnav"> <SCRIPT language=javascript> function Seach() { var obj; 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overflow:hidden;"><p><p> <span style="font-size:16px;">对<b><a href="http://btwhere.com/" target="_blank" style="font-weight:bold">基苯乙酮</a></b>Є制?生产之步    </span><br /> <span style="font-size:16px;">1、对胺基苯乙酮的制备。早先,我们是依Klingel氏所?͊的要领,由2份的苯?份醋酸酐?份氯化锌共煮??小时,水解后撤消剩余苯Կ。勇该报告写明得量可达؀用苯胺量的50?0%(相˺34?1%خV;但是,Ϊ̨不易뇺10%,且混合着大量Є树脂状物,净化很贫苦。如日菅泽氏等制备对胺基苯乙酮之法,仅Ķ略ǿ述是用乙酰苯胺、乙酰氯与氯化,依Fridel-craft应声并经水解Կ成,并报͊细的步骤?/span> </p> <p> <span style="font-size:16px;">按氯化与乙酰氯Є售价远较氯化锌及醋酸酐?/span><br /> <span style="font-size:16px;">Ӏ下是经我们改进的制法?nbsp;    ?5克新Є氯化锌?00Ɇċ酸共混、加热使溶ֽ油槽温度135-140℃V。稍冷后,加?0克醋酸酐。别Є,?3克乙酰苯胺溶解在50Ɇċ酸中ֽ必须用水槽温热之),勇后一次倾入上述氯化ӌ、醋酸酐等的匀称液之中。回?小时半ֽ油槽温度135-140℃V。减ա蒸除醋酸ǿ过剩Є醋酸酐。加?00毫升Є»盐酸并煮?小时,水解即趋于完全。待冷却室温左右,᫔冰浴冷剂在容器外冷却,随后ɠ进稍微过量?0%氢氧化钠溶液(约250克Vա中和盐酸。待充实冷后,减压过滤此血色晶°用少量的冰水洗涤。旋以水蒸气蒸馏法撤许未Є苯胺。滭留物经沸水提取数次,并加进活炭撤消ݑӶ物,滤液冷却后析出晶体。母液经浓缩后,벏得到一小部门晶体。粗产品Є量为23.7-27.0克ֽ32-37%خV。粗晶体经水中再结晶两次,并用活炭撤消᫺物,即可得到白色Ԉ状晶体,熔?07℃,得量18-19克ֽ25-26%خV?nbsp; 欲使对基苯乙酮Є疏散׹续Ķ化,可用苯来代替水为溶剂,自粗产品中提取对基苯乙酮,可使晶쒌杂质Ǟ常效Є离开?2?a href="http://btwhere.com/dxjbyd/" target="_blank">对硝基苯乙酮</a>一级a标准和一级b标准日韩片ffffЄ制备。将16.5ɯ胺基苯乙酮与54毫升氟硼酸的水溶液ֽ约含46%HBF4)殽杂,冷却?0℃后,缓缓滴进亚硝酸Ԡ水溶液(由9.4ɷ⺚硝酸Ԡ水溶液),随加随搅。加完后͆板搅半小߶。减ա滤此重氮硼酸盐,以乙Ě洗涤〱品为白色或微血色的ƺ体,将其悬浮于96毫升水中。别Є配制亚硝酸Ԡ水溶液(由100克NaNO2?00毫升水配成V,加进奇淀Є铜粉ֽ?6克CuSO4.5H2O制成)作触媒。而后将上述氮盐Є悬浊液缓缓ɠ进,同߶用电动搅器ֽ好接Witt氏型Є搅拌器)急剧地搅拌。本应声在室温下即可匀称举行,故无需ɠ热或冷却的᫽。待放氮Є作用制止后,减ա滤产物与Є殽杂物,用水洗涤߿滤液澄清为止,再?%Є氢氧化Ԡ的水溶液洗涤两次,用水洗涤。滤板上Є固°用洯?0毫升Є沸热乙ć提取共需3?次。加足量Є水与此乙醇提取液中,乙ć的캦变成45%左右,再ɠ进活性炭,回流殽杂物1小时以上,趁热减ա滤,滤液冷却后即析出黄色晶体,?1-12克ֽ55-60%خV,融?6-78℃?/span> </p> <p>   </p></p> <p><div>¦?<a href="62.html">硝基苯乙?对硝基苯乙酮-物性数?质与稳定?合成方法</a></div> <div>下一?<a href="59.html">间硝基苯乙酮,̻硝基苯乙酮合成工ѹ</a></div> </p></div> </div> <div class="tag">相关݇签?a href='/key.aspx?k=%e5%af%b9%e7%a1%9d%e5%9f%ba%e8%8b%af%e4%b9%99%e9%85%ae'>对硝基苯乙酮</a>,</div> <div class="title2"><h2>相关信息</h2></div> <div class="comment_list"> <ul> <li><a href="/news/108.html">对硝基苯乙酮基本信息</a></li> <li><a href="/news/62.html">硝基苯乙?对硝基苯乙酮-物性数?质与稳定?合成方法</a></li> <li><a href="/news/61.html">对硝基苯乙酮,对基苯乙酮Є制?生产之步 </a></li> <li><a href="/news/58.html">对硝基苯乙酮Є工艺-安勤</a></li> </ul> </div> <div class="title2"><h2>相关产品</h2></div> <div class="prob_list"> <div class="cn2"><h2><a href="/supply/9.html" target=""><img alt="对硝基苯乙酮ա家" src="/uploads/cp/20140714103056.jpg" width="118" height="118" border="0" onload="imgZoomer(this,118,118)" /></a></h2><span><a href="/supply/9.html" target="">对硝基苯乙酮ա家</a></span></div> <div class="cn2"><h2><a href="/supply/2.html" target=""><img alt="对硝基苯乙酮" src="/uploads/cp/20140417084702.jpg" width="118" height="118" border="0" onload="imgZoomer(this,118,118)" /></a></h2><span><a href="/supply/2.html" target="">对硝基苯乙酮</a></span></div> </div> </div> </div> <div id="right"> <div class="title1"><h2>新闻类别</h2></div> <div class="con_b"> <div class="con_t"> <div class="submenu"> <dl> </dl> </div> </div> </div> <div class="title1"><h2>产品目录</h2></div> <div class="con_b"> <div class="con_t"> <div class="submenu"> <dl> <dt><a href="/csn/">ċ酸?/a></dt> <dt><a href="/jxjbyd/">间硝基苯乙酮</a></dt> <dt><a href="/lxjbyd/">̻硝基苯乙酮</a></dt> <dt><a href="/dxjbyd/">对硝基苯乙酮</a></dt> <dt><a href="/dxjyb/">对硝基乙?/a></dt> <dt><a href="/jxjyb/">间硝基乙?/a></dt> <dt><a href="/lxjyb/">̻硝基乙?/a></dt> </dl> </div> </div> </div> <div class="title1"><h2>쳻我们</h2></div> <div class="con_b"> <div class="con_t"> <div class="contact"> <p> <p>쳻人ϸ徐杰?/p> <p>؋机?3338933050</p> <p>一级a标准和一级b标准日韩片ffff电话?515-87423968</p> <p>传真?515-87423968</p> <p>̮箱?a href="mailto:xjw200368@163.com" rel="nofollow">xjw200368@163.com</a></p> <p>网址Yww.btwhere.com</p> <p>地址:江苏盐城阜宁澳ɷ벛鼎?0?/p> </p></div> </div> </div> </div> <h6 class="clear"></h6> </div> <div id="footer"> <div class="footnav"> <a href="/" rel="nofollow">首页</a> | <a href="/about/" rel="nofollow" >企业介绍</a> | <a href="/news/" rel="nofollow" >二丙基三胺新闻资?/a> | <a href="/supply/" rel="nofollow" >间硝基乙苯产品介?/a> | <a href="/contact/" rel="nofollow" >ա家쳻方</a> | <a href="/3g/" rel="nofollow"target="_blank">؋机网站</a> <div class="cnzz"></div> Powered by </div> <div class="copyright"><div> Copyright btwhere.com(<a title="复制о接" href="javascript:copyURL();" target="_parent">复制о接</a>) ֜宁ա安勤化学有限公? 基苯乙酮哪家好?供应订做벰Ա?么ݷ?⿡公司˸以批发价ݼ大量现货提供间硝基〲等品质优̳Є产品ǿ报价,欢迎来电生产定制! <div class="cityspread">    <strong>热门城徺推广: </strong>       </div> <div style="width:300px;margin:0 auto; 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