(PDF) Reducing agents in fire refining of copper
Purpose of purification of copper in anode refining furnaces is to eliminate or reduce many impurities, that primarily affect the mechanical and electrical properties of copper. Briefly, fire ...
Comparison of environmental performance of modern copper …
The process simulations covered the process from sulfidic copper ore to blister copper but excluded the impact of downstream processes such as fire refining, electrolytic refining, wet gas cleaning and sulfuric acid production since these are performed relatively similarly in all the technologies compared with minor influence on …
Pyrometallurgical Refining of Copper in An …
This article discusses pyrometallurgical refining of copper in an anode furnace. It focuses on improving the refining process to produce higher quality anodes for copper electrolytic refining by optimizing metal/slag …
(a) Main steps in pyrometallurgical primary production of copper
Download scientific diagram | (a) Main steps in pyrometallurgical primary production of copper (cathodes). (b) Main steps in hydrometallurgical primary production of copper (cathodes). from ...
Measuring environmental impacts from primary and secondary copper
As such, the critical steps of this copper smelting process include pyrometallurgical refining of copper concentrate and electrolysis so that refined copper can be obtained. Midpoint indicators show that the most significant environmental impacts are generated from the production of copper concentrate, contributing roughly 80% of …
Pyrometallurgical Processing of Copper Ores
Hydrometallurgical processes are often coupled to pyrometallurgical ones (e.g., the electrochemical refining of metals obtained by pyrometallurgical process, or roasting and high-temperature ...
Investigation of heavy metal flows in a copper pyrometallurgical
Fig. 2 is the flow chart of the copper pyrometallurgical process and flue gas treatment in this plant, and Fig. S1 shows this process in more detail. A–Q in Fig. 2 represent the 17 sampling points in this study and denote the different materials of the process as described in the caption of the figure.. Download: Download high-res image …
Copper smelting and converting: past and present Chilean …
This paper shows how pyrometallurgical processing of copper concentrates has been developed in Chile and how the Teniente reactor was conceived and implemented. Also, a comparison between nonferrous and ferrous technologies in terms of instrumentation and control, and some new processes being developed at laboratory …
Pyrometallurgical refining process for copper
US3258330A - Pyrometallurgical refining process for copper - Google Patents Pyrometallurgical refining process for copper Download PDF Info Publication number US3258330A ... C22B15/006 — Pyrometallurgy working …
Copper Production Processes
During the refining procedure of the copper these elements are removed by using different techniques like selective vaporization and oxidation as well as refining electrolysis. Nearly all copper which is 'won' using the pyrometallurgical method (about 85 %) passes through the copper refining electrolysis.
AU594913B2
AU594913B2 - Pyrometallurgical copper refining - Google Patents Pyrometallurgical copper refining Download PDF Info Publication number ... C22B15/006 — Pyrometallurgy working up of molten copper, e.g. refining. Description:lu -I 59 913 S F Ref: 54776 FORM COMMONWEALTH OF AUSTRALIA PATENTS ACT 1952 COMPLETE SPECIFICATION
(PDF) Pyrometallurgical Treatment of E-Waste
Oxidising converting of black copper and formation . of copper rich slag. Cooling scrap (alloyed), ... Pyrometallurgical Refining: 2. Step (reduction) Cathode copper (99,999% Cu)
US4830667A
copper molten copper gas sparging copper mass Prior art date 1987-03-23 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number US07/169,284 Other languages English (en ...
Quantitative characterization and magnetic separation of copper
Introduction. Copper slag flotation tailing (CSFT) is a by-product of Cu pyro-metallurgical production, which accounts for more than 80 % of all Cu products produced worldwide [1].During Cu extraction, molten Cu slag is generated, which consists of a matrix of iron silicates (Fe 2 SiO 4), metal oxides, and matte droplets [1].Copper is usually …
Hydrometallurgical Processing of Copper-Arsenic Concentrates
Sherritt has evaluated the hydrometallurgical recovery of copper from sulphide concentrates since the 1960s [1,2,3,4], including from arsenical copper concentrates [5, 6], as have other parties.Despite such efforts, pressure oxidative leaching of copper concentrates has so far not found a distinct area of application on a par with …
Simplified flow-sheet of pyrometallurgical process …
The membrane process achieved high water fluxes (15.5 ± 0.2 L⋅m − 2 ⋅h − 1 ), salt rejections (98 %) while precious metal recovery (91 %) was achieved through adsorption processes [15].
Pyrometallurgical processing of copper concentrates
Typical copper dross, the byproduct of lead bullion pyrometallurgical refining for copper removal, mainly contains Pb, Cu, S, As, Sb and Sn etc. In traditional treatment process, copper dross is ...
Arsenic Reduction Kinetics during Vacuum Carbothermal …
Copper pyrometallurgical dust obtained from refining furnace with complex composition have various volatile elements such as Cu, Pb, Zn, In, Bi, Sb, Sn, and As and compounds generated from these elements are important secondary waste resources [1, 2].Recycling of these materials and waste resources is crucial in order to prevent the …
Removal of arsenic from dusts produced during the pyrometallurgical
Removal of arsenic using the low-temperature vacuum carbothermal reduction method was investigated by taking dusts with high contents of arsenic and copper from furnaces for pyrometallurgical refining of Cu as raw materials. Based on TGA-DSC, differential thermal analysis was applied to the raw materials; by virtue of …
US1817935A
US1817935A - Pyrometallurgical copper refining - Google Patents Pyrometallurgical copper refining Download PDF Info Publication number US1817935A ... copper vessel molten product sulphur Prior art date 1928-08-15 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and …
Leaching and removal of arsenic with waste acids …
Dusts from furnaces for pyrometallurgical refining of copper (Cu) in which arsenic (As) was pre-removed through the use of vacuum carbothermal reduction methods could be used as raw …
Copper and arsenic substance flow analysis of pyrometallurgical …
The metabolism of copper and arsenic in a copper pyrometallurgy process was studied through substance flow analysis method. The mass balance accountsand substance flow charts of copper and arsenic were established, indicators including direct recovery, waste recycle ratio, and resource efficiency were used to evaluate the …
Elimination of nickel from copper scrap melt
Pyrometallurgical process using Cu 2O-based slag was proposed as a recycling process for copper scrap. However, it is difficult to remove nickel from copper by oxidative refining. Therefore, it is ...
Copper smelting and converting: past and present …
This paper shows how pyrometallurgical processing of copper concentrates has been developed in Chile and how the Teniente reactor was conceived and implemented. Also, a comparison between …
The history of pyrometallurgical copper smelting using PS …
Pyrometallurgical copper smelting with PS converter is one of the main methods of copper smelting. Pyrometallurgical copper smelting includes: matte smelting of copper concentrate, copper matte blowing into blister copper, pyrometallurgical refining of blister copper, and electrolytic refining of anode copper.
A Review of Recent Advances in Pyrometallurgical Process
Pyrometallurgy has existed in one form or another for several thousand years. From paintings on the walls of ancient Egyptians, we know that the idea of heating metals (such as gold) to shape them existed even in ancient times [].It is a massive …
Leaching and removal of arsenic with waste acids from …
ABSTRACT Dusts from furnaces for pyrometallurgical refining of copper (Cu) in which arsenic (As) was pre-removed through the use of vacuum carbothermal reduction methods could be used as raw materials. After treating the As pre-removed dusts through oxidative leaching using waste acids, the process of neutralizing and …
Pyrometallurgical Process
Pyrometallurgical process is a traditional approach of metal recovery where, ... pre-heated oxygen-enriched air is injected via tuyeres into the bottom of the furnace. Cu (copper), Co, Ni, and some Fe (iron) are collected in a mixed alloy phase. ... In the following refining step, ...
A Review of Recent Advances in Pyrometallurgical Process …
The pyrometallurgical industry plays a vital role in producing metals for our modern life. With growing demand of metals and declining grade of mineable ore, innovations become critical for many mining companies. It is necessary to conduct a review of recent improvements to the pyrometallurgical industry on analytical measurement …
Characterization of Two Sludges from a Pyrometallurgical Copper
Smelting copper concentrate in the FF is a continuous process in which O 2-erinched air is blown and dried concentrate, flux agent (SiO 2) and recycled materials come from different steps of the process at 1250 °C.The copper concentrate (raw material with about 30% in Cu) reacts with O 2 to form molten iron-silicate (slag) and Cu-enriched …