Preparation of collective lead-zinc concentrates for selection cycle

2021 ◽  
pp. 12-17
Author(s):  
N. K. Algebraistova ◽  
E. S. Komarova ◽  
I. V. Prokopiev
Keyword(s):  
Diesel Fuel ◽  
Sodium Sulfide ◽  
Energy Costs ◽  
Flow Sheet ◽  
Ochrobactrum Anthropi ◽  
Butyl Xanthate ◽  
Ore Minerals ◽  
Lead Zinc ◽  
Bacterial Treatment ◽  
Sulfide Lead

The object of the study is a collective concentrate, which was obtained by flotation of sulfide lead-zinc ore from an East Siberian deposit using a combination of diesel fuel and butyl xanthate. In the collective concentrate the main ore minerals are galena and sphalerite. Non-metallic minerals are quartz, dolomite, calcite and chlorite. In the work were studied various methods of preparing a collective concentrate for a flotation selective cycle: without pulp preparation, washing with sodium sulfide, temperature, ultrasound, and bacterial treatment of a collective concentrate. The results of studies of the flotation selective cycle showed that it is impossible without preparation. Satisfactory technological indicators were not obtained when applying twice washing with sodium sulfide and using ultrasound. Introduction to the flow sheet of the operation of steaming in a medium of sodium sulfide and dosing of activated carbon into the process made it possible to obtain a foam product (lead concentrate) with a lead content of 45%, but the recovery was ~ 43%. In addition, the process is environmentally unfavorable, characterized by high material and energy costs. The prospects of using the bacterial method for preparing collective concentrates using diesel fuel for the flotation selective cycle are shown. The bacterial method consists in treating the collective concentrate with the bacteria Ochrobactrum anthropi and Pseudomonas aeruginosa JCM 5962.

Separation of sulfide lead-zinc-silver ore under low alkalinity condition

2012 ◽  
Vol 19 (8) ◽  
pp. 2307-2315 ◽  
Author(s):  
Wei Sun ◽  
Jian-fang Su ◽  
Gang Zhang ◽  
Yue-hua Hu
Keyword(s):  
Lead Zinc ◽  
Sulfide Lead

scholarly journals Features of lead-zinc mineralization in the Phia Dam - Khuoi Man region

2020 ◽  
Vol 61 (5) ◽  
pp. 120-134
Author(s):  
Phuong Nguyen ◽  
Dong Phuong Nguyen ◽  
Huong Thi Nguyen ◽  
Huong Thi Le ◽  
Dinh Van Do ◽  
...  
Keyword(s):  
Controlling Factors ◽  
Material Composition ◽  
Fault System ◽  
Research Results ◽  
Epithermal Deposits ◽  
Ore Bodies ◽  
Ore Minerals ◽  
Lead Zinc ◽  
Bedding Surface ◽  
New Research

The paper introduces a number of new research results on the characteristics of lead - zinc ores in Phia Dam - Khuoi Man areas based on the application of traditional geological methods, combining the method of researching material composition and method statistical maths. In the study area, there are two forms of ore bodies with characteristics described as below: the first form consists of ore bodies developed along the stratabound bedding surface, are mainly distributed in either anticlinal structures (i.e. Phia Dam region) or cuesta (i.e. Khuoi Man region) and the second form consists of ore bodies in lodes, filled in cracks or zones of fracture along the northwest – southeast faults. Primary ore minerals are mainly galena, sphalerite, pyrite, chalcopyrite, etc. and gangue minerals are calcite, dolomite, and quartz. Ore structures are nests, veins, disseminated veins, banded, speckled, or sometimes breccia - like ones. The relevant and controlling factors of lead-zinc mineralization in Phia Dam - Khuoi Man region are the northwest - southeast fault system and the lithostratigraphy. Ores are of either mesothermal or epithermal deposits (temperatures varies from 162 to 308 degrees Celcius), with a specific symbiotic combination of quartz - sphalerite - galena - chancopyrite.

Material Composition of Technogenic Ores in Tails of Zhezkazgan Enrichment Factory (Central Kazakhstan)

2016 ◽  
Vol 858 ◽  
pp. 366-370
Author(s):  
Adilkhan Baibatsha ◽  
Kulyash Dyussembayeva ◽  
Alma Bekbotayeva
Keyword(s):  
Grain Size ◽  
Raw Materials ◽  
Precious Metals ◽  
Microscopic Description ◽  
Reliable Source ◽  
Ore Minerals ◽  
Lead Zinc ◽  
And Storage ◽  
Extraction Of Metals ◽  
Copper Lead

Total reserves in tails in enrichment factories account for about 1.0 billion tons, and they contain copper, lead, zinc and precious metals. Therefore such tailings can be considered a major technological company and a reliable source of raw materials to build of processing company. We have studied the conditions of distribution and storage of tailings from enrichment plants. Microscopic description of the tailings material gave the following data. Chalcopyrite prevalent among the copper minerals covellite is most common in the second place, rare chalcocite, bornite, sphalerite, pyrite, arsenopyrite. The grain size of the sulfides is generally 0.01-0.03 mm. The sulfides are mainly quartz or fused to it. Rarely observed aggregates are covellite-bornite, chalcopyrite-covellite and chalcopyrite-bornite. However, not all sulphides ore sufficiently disclosed, most of them are located within grains the surrounding rocks. If disclosed ore minerals associated with grains of rocks less than 100 microns, they can be readily available for leaching. To increase the fullness of extraction of metals from sulfide located inside rock grains larger than 150-200 microns, additional measures for their opening.

Research on Flotation Tests of Sulfide Copper Ore from Yunan

2013 ◽  
Vol 634-638 ◽  
pp. 3466-3471 ◽  
Author(s):  
Yi Jie Wang ◽  
Shu Ming Wen ◽  
Jian Liu ◽  
Qi Cheng Feng ◽  
Meng Yang Lv
Keyword(s):  
Mineral Processing ◽  
Copper Recovery ◽  
Closed Circuit ◽  
Iron Deposit ◽  
Flow Sheet ◽  
Optimum Conditions ◽  
Butyl Xanthate ◽  
Copper Ore ◽  
One Stage ◽  
Concentrate Grade

The mineral processing flow sheet and reagent system of flotation copper minerals from a large copper-iron deposit in Yunnan were fully investigated. The results indicate that the optimum conditions for flotation of copper minerals from the material were identified as grinding fineness of 85%, dosage of CaO at 2000g/t , dosage of Na2S at 200 g/t, dosage of butyl xanthate 40g/t. Under such a condition, a copper recovery of 88.17% with a concentrate grade of 26.86% was achieved from the material using a closed circuit flow sheet of "one-stage roughing flotation, one-stage cleaning flotation and one-stage scavenging flotation.

Study on the Integrative Utilization of Cyanide Tailings of Polymetallic Sulfide Ore of Gold and Silver

2011 ◽  
Vol 343-344 ◽  
pp. 43-55 ◽  
Author(s):  
Xiao Qi Liu ◽  
Yong Fang ◽  
Hao Jiang ◽  
Yun Xiao ◽  
Le Gui Li
Keyword(s):  
Inhibitory Effect ◽  
Butyl Xanthate ◽  
Good Index ◽  
Sulfide Ore ◽  
Lead Zinc ◽  
Ph Range ◽  
Selection Of

In this paper, based on the experiment on pure minerals, namely, galena, sphalerite and pyrite, it is concluded that the appropriate pH range for galena flotation is 8.5-10.5, that for sphalerite flotation is 7-10.5 and for pyrite is 2.5-6.5. For galena, sphalerite and pyrite, butyl xanthate has a better collecting performance than ammonium dibutyl dithiophosphate. Both Na2SO3 and ZnSO4 have a relatively weak inhibitory effect on galena. As for sphalerite, the mixing of Na2SO3 and ZnSO4 has a better inhibitory effect than when they are used alone, with the best inhibitory effect obtained when the proportion of Na2SO3 and ZnSO4 is 1:2 and their dosages are respectively 100mg/L and 200mg/L. In zinc flotation, CuSO4 demonstrates an apparent activating effect on the inhibited sphalerite with its appropriate dosage at 2*10 -4 mol/L. In actual separation and selection of ore, when the grades of lead, zinc and silver in cyanide tailings are respectively 2.41%, 3.77% and 272g/t, a fairly good index is obtained where the Pb concentrate is of a grade of 33.41% with its silver grade of 4051.57g/t and the grade of Zn concentrate is 59.67% with its silver grade of 798.08g/t.

A Copper Oxide Ore Treatment by Flotation

2013 ◽  
Vol 813 ◽  
pp. 230-233
Author(s):  
Bao Liang Ge ◽  
Yan Xiong Fu ◽  
Qing Li
Keyword(s):  
Copper Oxide ◽  
Flow Sheet ◽  
Butyl Xanthate ◽  
Copper Oxidation ◽  
Two Stage ◽  
Main Metal ◽  
Pine Oil ◽  
One Stage ◽  
Ore Treatment ◽  
Oxidation Ratio

The ore containing 0.77%copper, the main metal minerals in the ore are hemesite, pyrite bornite, covellite, malachite, the main gangue minerals in the ore are quartzite, dolomite, plagioclase, Chlorite, calcite. And the copper oxidation ratio of the ore is 45.5%, According several flotation tests, finally found that the optimum reagents dosage are: butyl xanthate 90g/t as collector, pine oil 35g/t as foaming, sodium sulphide1000g/t, lime3000g/t, and the flow-sheet is one stage of roughing, three stage of cleaning and two stage of scavenging operationg in the close circuit under the grinding fineness is 85% -0.074mm.Satisfactory results had been obtained as the grade of is 18.06% with recovery 80.01%.

Study on the New Technique for High-Sulfur Lead-Zinc Ore of Laos

2012 ◽  
Vol 550-553 ◽  
pp. 2858-2861
Author(s):  
Sheng Jian ◽  
Yue Hua Hu
Keyword(s):  
Mineral Processing ◽  
New Technique ◽  
Sulfide Ores ◽  
Butyl Xanthate ◽  
Sulfur Lead ◽  
Lead Zinc

This study presents sulfide ores with lead 0.71%, Zinc5.07% from Laos, using a grinding (grinding fineness -0.075mm, 80%). Then, the lead ores is recovered by flotation first. Second, the middling ores is returned in preferential floatation. The mixed collector is used in all flotation such as ethyl xanthogenate , butyl xanthate and SN-9.After flotation, the grade of lead concentrate is 63.63%, and a recovery is 83.26% .In addition, the grade of zinc is 56.33%,a recovery is 86.63%. It can result in obvious increase in yields of mineral processing and economic better effect in production, compared to the old technology.

scholarly journals Beneficiation Studies on Low-Grade Complex Polymetallic Lead-Zinc Ore of Duddar (Lasbela) Balochistan, Pakistan

2016 ◽  
Vol 59 (3) ◽  
pp. 130-143
Author(s):  
Muhammad Arif Bhatti ◽  
Kamran Raza Kazmi ◽  
Abdul Ahad ◽  
Anila Tabassum ◽  
Rashid Mehmood ◽  
...  
Keyword(s):  
Recovery Rate ◽  
Froth Flotation ◽  
Low Grade ◽  
Flow Sheet ◽  
Flotation Process ◽  
Bench Scale ◽  
Lead And Zinc ◽  
Lead Zinc ◽  
Process Flow Sheet ◽  
Impeller Type

A bench-scale beneficiation study was performed on low-grade complex lead-zinc ore of Duddar area, District Lasbela, Balochistan Province, Pakistan. The polymetallic ore under investigation contains galena and sphalerite as valuable minerals of lead and zinc. The low-grade ore was upgraded by selective sequential froth flotation technology to recover both minerals. An effort was made to investigate the effect of important variables on grade and recovery of concentrates and to design the process flow sheet. Different parameters of flotation process such as particle size of the feed, pH and % solids of the pulp, speed of impeller, type of reagents (collectors, frothers, regulators and modifiers) and their quantities, conditioning time and flotation time were optimized to attain maximum grade and recovery of respective concentrates. The rougher concentrates obtained were subjected to one regrinding and two cleaning operations to achieve higher-grade concentrates of both metals. Bench-scale flotation tests show that it is possible to obtain a lead concentrate assaying 65.24% Pb with recovery rate of 81.32% and a zinc concentrate containing 55.63% Zn content with recovery rate of 80.28%. Both the concentrates meet the specifications required for metallurgical and chemical grades.

Hell and Black Smokers

Pyrite ◽  
2015 ◽  
Author(s):  
David Rickard
Keyword(s):  
Ore Deposits ◽  
Mineral Formation ◽  
Ore Genesis ◽  
The Earth ◽  
Unknown Reason ◽  
Ore Minerals ◽  
Lead Zinc ◽  
Ancient Times ◽  
Arsenic Copper ◽  
Solid Liquid

Most of the important metal ores in medieval and ancient times were pyrite-rich sulfides. These pyrite-rich ores were a major source of a suite of valuable commodities such as sulfur, arsenic, copper, lead, zinc, and nickel, as well as some gold and silver. This is why in 1725 Henckel could devote a 1,000-page volume to pyrites, sensu lato. Because of its relative abundance, its potential economic importance, and its exotic composition compared with the rock-forming minerals, pyrite has played a key role through the ages in developing ideas of how minerals and ore deposits form. During the last century, pyrite became an even more important mineral in discussions of ore genesis because it is also a key component of sediments. This led to conflicting theories of ore genesis, in which the ore minerals were formed in the sediments or introduced later, often by processes related to volcanism. The conflict between adherents of these theories continues to this day. Pyrite constituted a key, but sometimes uncomfortable, mineral in ancient theories of mineral formation. It was relatively common and often economically important. However, it contained sulfur as a key constituent and this contrasted it to many other common minerals and rocks in that this meant that pyrite could be changed by heating. Heating released sulfur from pyrite, leaving a residue of stony slag. The ancients also recognized sulfur as a special material since it occurred in solid, liquid, and gaseous form, rather like water. Any theory of mineral formation needed to explain how this protean element got into pyrite. This problem was compounded by the fact, discussed in Chapter 3, that for some unknown reason the ancients did not know that pyrite contained iron. Ancient theories of mineral formation divide into three categories: (a) the Genesis theory: that all minerals were formed by God during the creation of the Earth; (b) the Aristotelian theory: that all minerals were formed at depth in the Earth through the interactions of the four basic elements; and (c) the Alchemical theory: that minerals were formed from combinations of mercury and sulfur.

Flow sheet and reactant treatment for lead-zinc ore bulk flotation

2017 ◽  
pp. 50-54
Author(s):  
N. K. Algebraistova ◽  
◽  
I. V. Prokopiev ◽  
A. S. Markova ◽  
D. M. Kolotushkin ◽  
...  
Keyword(s):  
Flow Sheet ◽  
Lead Zinc
Sign in / Sign up

Export Citation Format

Share Document