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tcPro"><section class="home-main container clearfix"><div id="vdr1ht5" class="twoCol"><div id="p5tltfl" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁(yè)?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/second-_wjgj/">五金、工具</a>?<a href="http://www.cdcfah.com/cp/third-wjgj_qtwjgj/">其他五金工具</a>?黑龍江氯化鈀回收行情誠(chéng)信經(jīng)營(yíng) 蘇州德誠(chéng)貴金屬回收利用供應(yīng)</p><div id="5pzfdfn" class="leftbox clearfix"><h1>黑龍江氯化鈀回收行情誠(chéng)信經(jīng)營(yíng) 蘇州德誠(chéng)貴金屬回收利用供應(yīng)</h1><div id="xv3jvrv" class="proBig"><div id="vvdrxdj" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/WaterMark/UploadFile/szdcgjs/637145993854667969/266187.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="r5hxv1z" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/WaterMark/UploadFile/szdcgjs/637145993854667969/266187.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="lb3v51v" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)格要求：</span>面議</p><p><span>所在地：</span>江蘇省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>黑龍江氯化鈀回收行情</p><p><span>***更新：</span>2020-05-29 03:18:57</p><p><span id="click" >瀏覽次數(shù)：4次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="3p3dxj3" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">蘇州德誠(chéng)貴金屬回收利用有限公司</a></p><p><span>聯(lián)系人：</span>劉女士</p><p><span>郵箱: </span>2915617376@qq.com</p><p><span>電話: </span>15050106096</p><p><span>傳真: </span>159_</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>159-6221</p><p><span>地址: </span>蘇州市勞動(dòng)路28號(hào)808室</p><p>[當(dāng)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="pdrhr5v" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="d5ltzp7" class="box"><p><p> 貴金屬回收的意義： </p> <p> 1、貴金屬資源稀缺，黑龍江氯化鈀回收行情，特別是金、銀工業(yè)儲(chǔ)量較少。 </p> <p> 2、為了更好的為社會(huì)發(fā)展 </p> <p> 金屬鈀屬于稀有貴金屬，在自然界中的儲(chǔ)藏量很少。鈀碳催化劑回收是非常重要的化工原料，我們國(guó)家對(duì)鈀的儲(chǔ)藏量及開采量有一定限度。 </p> <p> 目前，普遍采用的是用硝酸或王水浸出，氨絡(luò)合沉淀的工藝，黑龍江氯化鈀回收行情。由于鈀催化劑中除了活性鈀以外還有輔助催化劑如銅、鋁等元素，另外還有載體，如碳、硅等。對(duì)于特種催化劑，鈀的回收也有所不同，目的是把金屬鈀提煉出來，黑龍江氯化鈀回收行情，達(dá)到高純度和高回收率。文中所用的廢鈀催化劑是以二氧化硅為載體的鈀催化劑，其中還含有銅和鋁等成分。 </p> <p> <br /> </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="黑龍江氯化鈀回收行情" src="http://tyunfile.71360.com/WaterMark/UploadFile/szdcgjs/637145993854667969/266187.jpg"></div><p style="text-indent:25px">傳統(tǒng)的低鈀合金回收方法是先將廢料用硝酸溶解后經(jīng)趕硝趕酸后加氨水轉(zhuǎn)化鈀，再加鹽酸將鈀沉淀，反復(fù)3次后還原得純鈀粉。其工藝中氨水轉(zhuǎn)化體積很大，過濾困難，加鹽酸酸沉銀后溶液中鈀鹽溶解量較大，特別是對(duì)低鈀合金或含銅、鋅等廢料，鈀碳回收率很低，約為80%。而這種新的回收工藝方法較傳統(tǒng)工藝所沒有的優(yōu)點(diǎn)，新的工藝過程簡(jiǎn)單，消耗時(shí)間短，不需要浪費(fèi)大量溶液的趕硝過程，將鈀轉(zhuǎn)化為水合氧化鈀有效富集后，使得試劑消耗降低，省略了氯化銀洗滌過程，提高鈀直收率；避免了銅、鎳等賤金屬對(duì)氨水的消耗量，節(jié)約氨水80%，降低了成本；這種新工藝中將鈀鹽洗液調(diào)pH值后還原得粗鈀粉，與鈀銅粉共同進(jìn)行鈀二次回收，獲得較高的回收率。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="黑龍江氯化鈀回收行情" src="http://tyunfile.71360.com/WaterMark/UploadFile/szdcgjs/637145995747656250/9140206.jpg"></div><p> 1主要儀器和試劑 </p> <p> WFD-Y2型原子吸收分光光度計(jì)，儀器工作條件：波長(zhǎng)247.2納米，燈電流12毫安，燃燒器高度標(biāo)尺6毫米，狹縫0.1毫米，康氏電動(dòng)振蕩器；電磁攪拌器。 </p> <p> 聚酰胺樹脂：篩取市售層析純聚酰胺0.841-0.25毫米（20-60目）粉粒，進(jìn)行處理并烘干備用。 </p> <p> 鈀標(biāo)準(zhǔn)溶液(1克/升)：稱取光譜純氯化鈀0.1666克，用10毫升王水溶解后以水定容于100毫升容量瓶中。使用時(shí)用水逐級(jí)稀釋成含鈀10毫克/升、1毫克/升和0.1毫克/升的標(biāo)準(zhǔn)工作溶液。 </p> <p> 硫脲溶液(30克/升、50克/升)均按常法配制。實(shí)驗(yàn)用水為蒸餾水，試劑均為分析純。 </p> <p> 2、靜態(tài)吸附實(shí)驗(yàn) </p> <p> 分別稱取0.2克粉粒聚酰胺樹脂和纖維狀聚酰胺樹脂于150毫升碘量瓶中，用實(shí)驗(yàn)選用的鹽酸溶液預(yù)平衡30分鐘，加入一定量鈀標(biāo)準(zhǔn)工作液，用對(duì)應(yīng)濃度的鹽酸補(bǔ)足溶液體積為50毫升（要準(zhǔn)確），蓋緊瓶蓋，于振蕩器上振蕩吸附30分鐘，取下靜置分層后，傾出全部清液（必要時(shí)可干過濾），加入1毫升硝酸在電熱板上蒸至3毫升左右，定量轉(zhuǎn)入10毫升比色管中，測(cè)定其中鈀的含量，計(jì)算樹脂對(duì)鈀的吸附率。樹脂相先用20-30毫升水振蕩洗滌10分鐘，洗滌液棄去。再加入30克/升硫脲溶液20毫升，于振蕩器上振蕩解脫30分鐘，取下靜置分層后吸取部分解脫液于10毫升比色管中，計(jì)算解脫率。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="黑龍江氯化鈀回收行情" src="http://tyunfile.71360.com/WaterMark/UploadFile/szdcgjs/637145994669404297/1161357.jpg"></div></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/72465.html</p></div></div></div></div></div><div id="9tfd1jx" class="page-right twoColRt"><div id="r53d9pr" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="rjbrzfr" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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