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id="3x7cbsr" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">贏洲科技（上海）有限公司</a></p><p><span>聯(lián)系人：</span>戴小姐</p><p><span>郵箱: </span>563950983@qq.com</p><p><span>電話: </span>18202125770</p><p><span>傳真: </span>021_54845086</p><p><span>網(wǎng)址: </span>http://www.winzoner.com</p><p><span>手機(jī): </span>021-34636566</p><p><span>地址: </span>上海市閔行區(qū)滬閔路4200號(hào) IF創(chuàng)意產(chǎn)業(yè)園E棟408 </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="voqnkme" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="txuwtvc" class="box"><p><p> 中國有色金屬資源豐富，品種比較齊全。鎢和稀土等金屬的儲(chǔ)量居世界***位，鉛、鎳、汞、鋁、鈮等金屬的儲(chǔ)量也相當(dāng)豐富。在礦產(chǎn)資源中，有色金屬是中國的一大優(yōu)勢。中國有色金屬工業(yè)發(fā)展很快，已經(jīng)形成了從常用有色金屬到稀有金屬，品種比較齊全，工藝比較完善的生產(chǎn)體系。中國各種有色金屬的采礦、選礦、冶煉、加工等都具有相當(dāng)規(guī)模，為國民經(jīng)濟(jì)的快速發(fā)展提供了重要的物質(zhì)保障。 </p> <p> 鐵是**常用的金屬，密度7.87，熔點(diǎn)為1536℃，沸點(diǎn)3070℃，有很強(qiáng)的鐵磁性和良好的可塑性和導(dǎo)熱性。鐵比較活潑，在金屬活動(dòng)順序表里排在氫的前面。鐵在干燥空氣中很難跟氧氣反應(yīng)，但在潮濕空氣中很容易腐蝕，若在酸性氣體或鹵素蒸氣氛圍中腐蝕更快，中國香港便攜式光譜儀分析儀測海底錳結(jié)核。鐵易溶于稀的無機(jī)酸和濃鹽酸，生成二價(jià)鐵鹽，中國香港便攜式光譜儀分析儀測海底錳結(jié)核，并放出氫氣，中國香港便攜式光譜儀分析儀測海底錳結(jié)核。在常溫下遇濃硫酸或濃硝酸時(shí)，表面生成一層氧化物保護(hù)膜，使鐵“鈍化”，故可用鐵制品盛裝濃硫酸或濃硝酸。 </p> <p> <br /> 中國香港便攜式光譜儀分析儀測海底錳結(jié)核</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="中國香港便攜式光譜儀分析儀測海底錳結(jié)核,光譜儀分析儀" src="https://tyunfile.71360.com/UploadFile/yingzhou/637337805463339843/7670155.png"></div><p style="text-indent:25px">粗鉛精煉分火法精煉和電解精煉。火法精煉包括：①熔析精煉和加硫除銅。熔析是利用銅在鉛中的溶解度隨溫度的降低而減小的特性，降溫除去部分銅，加硫是使銅生成Cu2S進(jìn)一步除去。經(jīng)過這兩段作業(yè)，鉛中含銅可降至0.001～0.002％。②堿性精煉除砷、錫、銻。除銅后的鉛液不斷流經(jīng)熔融的氫氧化鈉和氯化鈉，同時(shí)加入硝石 (NaNO3)作氧化劑，使砷、錫、銻分別氧化生成砷酸鈉(Na3AsO4)、錫酸鈉(Na2SnO3)和銻酸鈉(Na3SbO4)，溶于氫氧化鈉和氯化鈉的混合熔體中而與鉛分離。中國香港便攜式光譜儀分析儀測海底錳結(jié)核</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="中國香港便攜式光譜儀分析儀測海底錳結(jié)核,光譜儀分析儀" src="https://tyunfile.71360.com/UploadFile/yingzhou/637337805471894531/4866800.png"></div><p style="text-indent:25px">銅冶煉技術(shù)的發(fā)展經(jīng)歷了漫長的過程，但至今銅的冶煉仍以火法冶煉為主，其產(chǎn)量約占世界銅總產(chǎn)量的85%。銅的火法冶煉一般是先將含銅原礦石通過選礦得到銅精礦，在密閉鼓風(fēng)爐、反射爐、電爐或閃速爐進(jìn)行造锍熔煉，產(chǎn)出的熔锍(冰銅)送入轉(zhuǎn)爐進(jìn)行吹煉成粗銅，再在反射爐內(nèi)經(jīng)過氧化精煉脫雜，或鑄成陽極板進(jìn)行電解，獲得品位高達(dá)99.9％的電解銅。該流程簡短、適應(yīng)性強(qiáng)，銅的回收率可達(dá)95％。但因礦石中的硫在造锍和吹煉兩階段作為二氧化硫廢氣排出，不易回收，易造成污染。近年來出現(xiàn)如白銀法、諾蘭達(dá)法等熔池熔煉以及日本的三菱法等，火法冶煉逐漸向連續(xù)化、自動(dòng)化發(fā)展。</p><p> 鉛是灰白色金屬，密度11.34，熔點(diǎn)327.5℃，沸點(diǎn)1740℃，質(zhì)地柔軟，抗張強(qiáng)度小。鉛在空氣中受到氧、水和二氧化碳作用，其表面會(huì)很快氧化生成保護(hù)薄膜；在加熱下，鉛能很快與氧、硫、鹵素化合；鉛與冷鹽酸、冷硫酸幾乎不起作用，能與熱或濃鹽酸、硫酸反應(yīng)；鉛與稀硝酸反應(yīng)，但與濃硝酸不反應(yīng)；鉛能緩慢溶于強(qiáng)堿性溶液。鉛及其化合物對(duì)人體有較大毒性，并可在人體內(nèi)積累。 </p> <p> <br /> </p> <p> 鉛是人類**早使用的金屬之一，公元**000年，人類就從礦石中熔煉鉛。鉛鋅在自然界里特別在原生礦床***生極為密切。它們具有共同的成礦物質(zhì)來源和十分相似的地球化學(xué)行為，有類似的外層電子結(jié)構(gòu)，都具有強(qiáng)烈的親硫性，并形成相同的易溶絡(luò)合物。它們被鐵錳質(zhì)、粘土或有機(jī)質(zhì)吸附的情況也很相近。鉛在地殼中平均含量約為15×10-6，鋅在地殼中平均含量約為80×10-6。 </p> <p> <br /> </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="中國香港便攜式光譜儀分析儀測海底錳結(jié)核,光譜儀分析儀" src="https://tyunfile.71360.com/UploadFile/yingzhou/637337805479912109/9361027.png"></div><p style="text-indent:25px">通用的電解質(zhì)組成(重量)為：CaCl2 58％，NaCl 42％；操作溫度580～600℃，槽電壓6～7伏，陰極電流密度為9600安/米2左右，電流效率可達(dá)80％以上。原料氯化鈉無須經(jīng)過除鈣、鎂和硫等精制過程。制得的粗鈉夾雜有氯化物、氧化物和鈣，在液體石蠟保護(hù)下，加熱至110～130℃，加壓過濾，能除去大部分雜質(zhì)；所得金屬鈉送鑄鈉機(jī)鑄錠、包裝。工業(yè)金屬鈉的純度在99.6％以上，含鈣<0.04％，含氯化物0.005％。將工業(yè)鈉在0.1托、400℃下真空蒸餾，在氮或氬氣保護(hù)下，可制取99.95％的高純鈉產(chǎn)品。四川原伊諾斯光譜儀分析儀測汽車尾氣</p><p style="text-indent:25px">中國香港便攜式光譜儀分析儀測海底錳結(jié)核</p><p style="text-indent:25px">③加鋅除銀。加鋅于含銀的鉛液，生成浮于鉛液表面的“銀鋅殼”。銀鋅殼一般比粗鉛含銀高20倍，是提取銀的原料。鉛液中殘存的鋅(0.6～0.7%),可用堿性精煉法或氯化精煉法除去。④加鈣、鎂除鉍。在一定溫度下鉍與鈣可生成Bi2Ca3和Bi3Ca，鉍與鎂可生成Bi2Mg3，此法可使鉛中的鉍降至0.01～0.02％。電解精煉時(shí)，因粗鉛中的銅、錫等雜質(zhì)對(duì)電解有害，電解前先用火法初步精煉，以除去銅、錫。電解時(shí)陽極中須含有千分之幾的銻，以便使陽極泥致密而不脫落，故在鑄造陽極前須調(diào)整鉛液中的含銻量。中國香港便攜式光譜儀分析儀測海底錳結(jié)核</p><p style="text-indent:25px">贏洲科技（上海）有限公司成立于2018-08-20，專業(yè)從事儀器儀表科技領(lǐng)域內(nèi)的技術(shù)開發(fā)、技術(shù)咨詢、技術(shù)服務(wù)、技術(shù)轉(zhuǎn)讓、機(jī)電設(shè)備、機(jī)械設(shè)備安裝、維修、批發(fā)、零售、儀器儀表，實(shí)驗(yàn)室設(shè)備、環(huán)保設(shè)備、計(jì)算機(jī)、軟件及輔助設(shè)備、光電設(shè)備、五金交電，自動(dòng)化設(shè)備批發(fā)、零售，商務(wù)信息咨詢。從事貨物及技術(shù)進(jìn)出口業(yè)務(wù)。等多項(xiàng)業(yè)務(wù)，主營業(yè)務(wù)涵蓋文博考古分析儀，手持式合金光譜分析儀，海洋勘探分析儀，手持式固廢分析儀。公司目前擁有11~50人員工，為員工提供廣闊的發(fā)展平臺(tái)與成長空間，為客戶提供高質(zhì)高速的產(chǎn)品服務(wù)，深受員工與客戶好評(píng)。公司業(yè)務(wù)范圍主要包括：文博考古分析儀，手持式合金光譜分析儀，海洋勘探分析儀，手持式固廢分析儀等。公司奉行顧客至上、質(zhì)量為首、的經(jīng)營宗旨，深受客戶好評(píng)。公司力求給客戶提供全數(shù)優(yōu)質(zhì)服務(wù)，我們相信誠實(shí)正直、開拓進(jìn)取地為公司發(fā)展做正確的事情，將為公司和個(gè)人帶來共同的利益和進(jìn)步。經(jīng)過幾年的發(fā)展，已成為文博考古分析儀，手持式合金光譜分析儀，海洋勘探分析儀，手持式固廢分析儀行業(yè)出名企業(yè)。</p></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/1042712.html</p></div></div></div></div></div><div id="33eqnpw" class="page-right twoColRt"><div id="oyqnfro" class="box01 margin10 clearfix"><h3><a 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