【文章內(nèi)容簡(jiǎn)介】 3。 11 浸取劑性質(zhì)比較 11 第 5 章 翻譯文獻(xiàn) 12 做中國(guó)最大的管理資料庫(kù) — 企業(yè) () I 摘 要 隨著市場(chǎng)對(duì)硫化銻礦石的需求量越來(lái)越大，選礦之后和冶煉后產(chǎn)生的礦渣也越來(lái)越多，大多數(shù)礦渣隨處堆放未作處理和治理，另外礦渣中含有一定的硫磺和貴重金屬資源。傳統(tǒng)的土法提取硫工藝以焙燒為基礎(chǔ)，具有投資高、周期長(zhǎng)、危險(xiǎn)性高、操作不便等缺點(diǎn)。為了處理和解決硫化銻工業(yè)生產(chǎn)中日益增長(zhǎng)的礦渣治理問(wèn)題以及回收利用硫磺資源，不斷探索和研究新的技術(shù)方法已成為亟待開(kāi)展的研究課題。 本課題立足于國(guó)內(nèi)外提取回收硫磺研究的最新研究成果，改變傳統(tǒng)的研究思路，采用浸取結(jié)晶的工藝方法。在對(duì)浸取結(jié)晶機(jī)理進(jìn)行深入分析的同時(shí)， 也對(duì)實(shí)驗(yàn)影響因素進(jìn)行了綜合研究。實(shí)驗(yàn)中通過(guò)對(duì)液固比、冷卻溫度、加熱時(shí)間、加熱溫度等條件進(jìn)行調(diào)控，找出了硫磺回收率與各種影響因素的定性和定量關(guān)系，以及提取回收的最佳試驗(yàn)條件，并對(duì)硫磺進(jìn)一步純化和礦渣中貴重金屬回收也作了一定的初步研究。 實(shí)驗(yàn)結(jié)果表明：通過(guò)實(shí)驗(yàn)影響因素以及正交試驗(yàn)的數(shù)據(jù)分析，可知液固比是最主要的影響因素；最佳實(shí)驗(yàn)條件為：加熱浸取溫度 150℃、加熱時(shí)間 15min、冷卻溫度 0℃、液固比 10： 1（ mL/g），在此實(shí)驗(yàn)條件下，可以達(dá)到最佳的實(shí)驗(yàn)效果，此時(shí)浸取精細(xì)硫磺的回收率可達(dá) %，浸取劑 I*回 收率為 %；精細(xì)硫磺純度為 ％，平均粒徑大小為 。同時(shí)還對(duì)多級(jí)浸取進(jìn)行了試驗(yàn)研究，多級(jí)浸取對(duì)浸取劑回收效果基本上沒(méi)有影響，可以循環(huán)利用；同時(shí)經(jīng)過(guò)實(shí)驗(yàn)測(cè)定硫磺的純度和粒度也基本上沒(méi)有變化。實(shí)驗(yàn)中得到的精細(xì)硫磺成淺黃色，粉末狀，有潤(rùn)滑感。 除了對(duì)普通硫磺的深度純化進(jìn)行理論研究外，論文中還對(duì)精細(xì)硫磺產(chǎn)品的深度純化進(jìn)行了詳細(xì)研究，并提出了蒸餾的工藝方法。同時(shí)提取硫磺后濃縮的礦渣中含有一定量的鉛和銻，為了將金屬回收并資源化，本文中提出了采用浮選法，氯化浸出分離鉛和銻研究方法。最后，根據(jù)浸取回 收硫磺的實(shí)驗(yàn)研究結(jié)果，提出了生產(chǎn)精細(xì)硫磺的生產(chǎn)工藝；同時(shí)還介紹了生產(chǎn)高價(jià)值品位的不溶性硫磺的各種生產(chǎn)工藝以及對(duì)其優(yōu)缺點(diǎn)進(jìn)行比較，并對(duì)其工業(yè)化展望進(jìn)行了深入探討。 關(guān)鍵詞： 浸取結(jié)晶；精細(xì)硫磺；不溶性硫磺；工業(yè)化 II Abstract With the greater demand of sulfureted antimony slag for market, the slag was bee more and more after the process of selecting and smelting mine, whereas, the most slag freely placed wasn’t disposed and treated in some degree. Meanwhile, there were some sulphur and valuable metals in the slag. Based on the baking, traditional process for distilling sulphur had many disadvantages, such as high cost, long period, high danger, and dismodious operation. The research and exploration of new technology methods had bee the desiderate project, in order to deal with and settle the problem of progressive slag and sulphur recycling. On the basis of the newest research achievement for reclaiming sulphur at home and abroad, different from traditional research method, leaching ＆ rime method was used in the process. In the paper, leaching ＆ rime principle was analysed indepth, also, influencing factors were studied synthetically. In the experiment, qualitative and quantitative relationship between the recovery yield of sulphur and all kinds of influencing factors and the best experimental conditions for leaching ＆ rime were found by controlling the liquidsolid rate, cooling temperature, heating time and heating temperature, what’s more, primary research on farther purification of sulphur and recycling valuable metals in the slag was made in the paper. 做中國(guó)最大的管理資料庫(kù) — 企業(yè) () It indicated in the experiment: By analysis of influencing factors and data on orthogonal experiment, liquidsolid rate was dominating in the influencing factors. Under the best experimental conditions of liquidsolid rate 10： 1, heating time 15 minutes, heating temperature 140℃ and cooling temperature 0℃ , more satisfactory results, such as fine sulphur recovery yield %, extraction solvent I* recovery yield %, the sulphur’s granularity microns and the fine sulphur’s purity %, were achieved. At the same time, experimental research on multilevel leaching was made, and it showed that there was little influence on recycling and product character, such as granularity, purity. Fine sulphur got in the experiment was buff, powdered and lubricate. Besides the study on mon sulphur39。s further purification, distillation method was presented and made further study in order to deeply purify fine sulphur. Meanwhile, there were some lead and antimony pounds in the slag after leaching sulphur, in the interest of recycling and resourcetransfer, floatation method was 做中國(guó)最大的管理資料庫(kù) — 企業(yè) () III adopted to separate them by chlorination and soaking. Finally, according to the experimental result, the production process flow of fine sulphur was presented。 Meanwhile, all kinds of production processes of insoluble sulphur with high value were introduced, and their advantages and disadvantages were pared in detail, furthermore, the industrialized prospect was deeply discussed. Keywords： Leaching amp。 rime。 Fine sulphur。 Insoluble sulphur。 Industrialisation 從硫化銻礦渣中提取硫?qū)嶒?yàn)研究及工業(yè)化展望開(kāi)題報(bào)告 1 第 1 章 選題依據(jù) 我國(guó)工業(yè)固體廢物每年產(chǎn)生量約 億 t，排入量約 億 t，歷年累積堆放達(dá) 億 t 左右，工業(yè)固體廢物的綜合利用率只有 45%。因此，我們對(duì)固體廢物應(yīng)該進(jìn)行妥善處理及合理利用，這樣既可消除固體廢物的污染危害，又能為社會(huì)創(chuàng)造財(cái)富，在環(huán)境、社會(huì)、經(jīng)濟(jì)三方面效益兼而得之 [1,2]。 課題來(lái)源 硫化銻礦的分布狀況 中國(guó) 是世界上銻礦資源最豐富的國(guó)家之一?，F(xiàn)已探明有儲(chǔ)量的礦區(qū) 111 處，分布于 18 個(gè)省區(qū) [6]。 硫化銻礦的生產(chǎn)及利用現(xiàn)狀 硫化銻礦的生產(chǎn) 中國(guó) 硫化銻礦 的生產(chǎn)已有近百年的歷史， 目前已形成采選冶和加工等較完整的銻 硫化銻礦的利用方式 硫化銻礦的利用主要是通過(guò)冶煉制得 銻深加工產(chǎn)品。 硫化銻礦的冶煉方法雖有 接下來(lái)講述一 下輝銻礦氯化浸出反應(yīng)機(jī)理， 在鹽酸氯鹽介質(zhì)中，灰銻礦被電氯化浸出時(shí)主要發(fā)生三種類型的氧化反應(yīng) [11~14]： 1. Sb2S3粒子直接在石墨陽(yáng)極上放電 Sb2S3 6e =2Sb3+ +3S0 E0=