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什么是碳酸化轉(zhuǎn)化浮選法渣漿泵提金技術(shù)?
將含金鋼鉛精礦放入碳酸鈉(或碳酸銨)的溶液中，恒溫?cái)嚢璺峭?/span>入密氣，使鋼形成銅銨絡(luò)離子被浸出，而方鉛礦中的鉛則轉(zhuǎn)化為碳酸鉛，然后過濾除銅，銅液用褐煤吸附，煉成金屬銅，也可用硫化銨沉淀得純硫化銅。過濾的渣先用浮選法回收黃鐵礦，得到硫精礦，尾礦即碳酸鉛，用硅氟酸溶解，其中的碳酸鉛也被溶解了，然后過濾除渣。溶液即是硅氟酸鉛，再加入硫酸，生成硫酸鉛，可繼續(xù)加工成化工產(chǎn)品，也可以外銷。最后的過濾渣經(jīng)焙燒，氰化浸出提金。
什么是混汞浮選法?
游高金的混汞浮選過程如圖4. 1所示。
低品位金礦石磨礦分級(jí)后，礦漿與用電化學(xué)方法分散的汞一起攪拌。在攪拌過程中游離的金粒子與分散在礦漿中的汞粒子混汞，攪拌以后分漿浮選，沒有混汞的金進(jìn)入一個(gè)回路，已混汞的金進(jìn)入另一回路，捕收劑用戊基黃藥和乙基黃藥(1 : 1)，兩個(gè)回路的精礦合并在一起為最終精礦。這是回收低品位金的一種方法，從300t/d規(guī)模的工業(yè)試驗(yàn)情況來看，此法在經(jīng)濟(jì)上是合算的。汞的用量不高，一般為2.5~4g/t; 金的回收率與原礦品位有關(guān)，原礦品位從1.29g/t 上升到L.8g/t時(shí)，回收率由80.07%增加到87.81%。
17含金黃鐵礦浮選過程中礦漿電位有何重要作用?
含金硫化礦的浮選實(shí)質(zhì)上是浮選載金礦物例如黃鐵礦、黃銅礦、毒砂、方鉛礦等以及部分呈游離狀態(tài)的自然金。在此過程中，研究發(fā)現(xiàn)礦漿電位Eh起著非常重要的作用。捕收劑諸如黃藥、黑藥或者這兩種藥劑的混合物在陽極形成硫化礦物的疏水膜，該陽極過程與陰極過程例如氧的還原相互陪伴，使得浮選回收率與礦漿電位緊密地聯(lián)系在一起。渣漿泵
除了可以通過礦 漿中的氧氣控制電位外。還可以采用化學(xué)藥劑控制電位。所用的藥劑一般有硫化鈉、連二亞硫酸鈉、二氧化硫和
What is the technology of gold extraction by slurry pump of carbonation conversion flotation?
The lead concentrate containing steel is put into the solution of sodium carbonate (or ammonium carbonate), stirred at constant temperature without passing through dense gas, so that the copper ammonium complex ion formed in steel is leached, while the lead in galena is transformed into lead carbonate, and then the copper is filtered and removed, and the copper solution is absorbed by lignite, and refined into copper metal, or precipitated with ammonium sulfide to obtain pure copper sulfide. The pyrite is recovered from the filtered slag by flotation to obtain sulfur concentrate. The tailings, namely lead carbonate, are dissolved by silicofluoric acid, and the lead carbonate is also dissolved, and then the slag is removed by filtration. The solution is lead silicofluoroate, and then sulfuric acid is added to produce lead sulfate, which can be processed into chemical products or exported. The final filter residue is roasted and cyanide leached to extract gold.
What is mixed mercury flotation?
The flotation process of mixed mercury with high gold is shown in Fig. 4.1.
After grinding and grading of low-grade gold ores, the pulp is stirred with mercury dispersed by electrochemical method. During the mixing process, the free gold particles are mixed with the mercury particles dispersed in the slurry. After the mixing, the slurry is separated for flotation. The gold without mercury mixture enters one circuit, and the gold mixed with Mercury enters another circuit. The collector uses amyl xanthate and ethyl xanthate (1:1). The refined ores of the two circuits are combined to form the final concentrate. This is a method of recovering low-grade gold. From the industrial test of 300t / D scale, this method is economical. The amount of mercury is not high, generally 2.5 ~ 4G / T; the recovery rate of gold is related to the grade of raw ore. when the grade of raw ore rises from 1.29g/t to l.8g/t, the recovery rate increases from 80.07% to 87.81%.
What is the important role of pulp potential in the flotation of 17 gold bearing pyrite?
In essence, the flotation of gold bearing sulfide ore is the flotation of gold bearing minerals such as pyrite, chalcopyrite, arsenopyrite, galena and some free natural gold. In this process, it is found that pulp potential eh plays a very important role. The collector such as xanthate, black agent or the mixture of the two agents forms a hydrophobic membrane of sulfide minerals at the anode. The anode process and the cathode process such as oxygen reduction are accompanied each other, so that the flotation recovery is closely related to the pulp potential. Slurry pump
In addition to controlling the potential through oxygen in the pulp. Chemical agents can also be used to control the potential. Generally, the reagents used are sodium sulfide, sodium hydrosulfite, sulfur dioxide and
