coke injection in to slag cleaning

coke injection in to slag cleaning

Coal rate injection control in a slag cleaning furnace ...

01/08/2000  The initial study to control the coal rate injected into a slag-cleaning furnace (SCF), based on a soft sensor, was developed at Caletones Smelter, Ch

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Slag Treatment in the EAF / SAF with Coke Injection

zA slag cleaning treatment with metal recovery is necessary for ecological and economical reasons ... zAt the IME the intensification of slag cleaning of lead/zinc and copper slags in the EAF by coke injection is investigated, including injection trials in a water model and test runs in the pilot-scale EAF zAim of the investigation is the decrease of the treatment duration and thereby an ...

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Intelligent sensor for coal powder rate injection in a ...

01/07/2000  Intelligent sensor for coal powder rate injection in slag cleaning furnace 779 During the vessel discharge, the operator tries to maintain the coke flowrate by manipulating the set point of the pressure controller on the nitrogen line. Sometimes the blow valve is used to reverse the coke compactness in the lower part of the cone. To optimise this technology and consolidate this process,

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Carbon Injection into Electric Arc Furnace Slags

Recent experiment in our laboratory demonstrates that an increase in slag foaming with carbon injection rate is limited by slag volume. The current work has identified a relationship between foam height, carbon injection rate and slag volumes, which predicts the critical injection rate above which foaming become inefficient. The prediction of critical injection rate employs an extension of ...

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Dalmia - Slag Cleaning

Slag Cleaning Furnace. In this furnace, copper rich oxide slags are melted in electric arc furnaces and coke copper pyrite are added to reduce copper content in the slag. In order to increase reaction rate, slag is over-heated to produce low viscosity aggressive slag. Dalmia-OCL’s Co-clinker series Magnesia Chrome bricks have excellent resistance to fayalatic slag. These are the solutions ...

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Slag cleaning in crossed electric and magnetic fields ...

01/01/2007  Slags from smelting of copper concentrate contains from 2% to 20% of copper and are directed to slag cleaning operation carry out in electric furnaces or other slag cleaning reactors with injection of carboneous reductant. Ionic structure of liquid slags points out the possibilities of utilization of slag electrolysis in reduction of magnetite and precipitation of dissolved copper as well as ...

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The Melting Properties of Tuyere Slags with and without ...

b) Bosh slag–consisting of the primary slag, all the addi-tives and fluxes dissolved in it and some ash from coke consumed for direct reduction and carburisation; c) Tuyere slag–formed by the ash content of coke and coal burnt in front of the tuyeres and, if injection of fluxes are used, the injected flux;

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(PDF) Slag cleaning reactor for metal recovery in copper ...

A new intensive slag cleaning reactor can be used for recovery of ferro-alloys, recycling of steel mill waste, and the reconditioning of waste deposits. The development of the new reactor is a ...

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Slag cleaning in crossed electric and magnetic fields ...

01/01/2007  Slags from smelting of copper concentrate contains from 2% to 20% of copper and are directed to slag cleaning operation carry out in electric furnaces or other slag cleaning reactors with injection of carboneous reductant. Ionic structure of liquid slags points out the possibilities of utilization of slag electrolysis in reduction of magnetite and precipitation of dissolved copper as well as ...

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(PDF) Slag-Coke Interactions in the Lead Blast Furnace

The interaction between metallurgical coke and slag is an important aspect of furnace operation in both lead production and ironmaking. This interaction occurs in the dripping zone of the blast ...

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Recovery of cobalt, nickel, and copper from slags, using ...

In the slag-cleaning process considered here, the furnace would be operated with a layer of electrically conductive coke or coal covering the slag. As the electrodes of the AC furnace penetrate this layer, there exists the possibility of the current flowing between the electrodes on the surface of the slag. This inter-electrode conduction not only reduces the energy dissipated in the slag ...

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Calcined Petroleum Coke, Injection Coke / Injection

INJECTION COKE / INJECTION CARBON. Injection Coke is product derived from Metallurgical Coke. The technique of Foaming Slag using Carbon in the EAF is used to increase productivity, lower operating costs and increase the quality of steel produced. It is also used as deoxidizing agent. The above product is manufactured at our Gujarat ...

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The Melting Properties of Tuyere Slags with and without ...

b) Bosh slag–consisting of the primary slag, all the addi-tives and fluxes dissolved in it and some ash from coke consumed for direct reduction and carburisation; c) Tuyere slag–formed by the ash content of coke and coal burnt in front of the tuyeres and, if injection of fluxes are used, the injected flux;

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High Alumina Slag and Blast Furnace Operation –

27/05/2013  The slag fluidity is affected by the temperature and composition of the slag, with the latter influenced by ore gangue minerals and ash materials of coke and pulverized coal. CaO/SiO2 ratio in the slag compositions is normally adjusted to a range of 1.2 to 1.3 by an auxiliary material for improving the fluidity and desulphurization ability of the slag. The Al2O3 concentration in the slag is ...

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What is carbon engine cleaning and is it worth it? Auto ...

27/03/2020  Does engine carbon cleaning work? Opinions and reviews on the results of all the different types of carbon cleaning are mixed. The invasive method is the most effective but is also the most ...

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Process and Arrangement for Extracting a Metal from Slag

1) in an AC electric arc furnace by reduction with coke and electrodes, slag preheating and sedimentation, 2) in horizontal cylindrical rotary furnaces by injecting a reducing agent, e.g., in a Teniente slag cleaning furnace, 3) in vertical converters with injection of a reducing agent, e.g., TBRC or Isasmelt. Slag cleaning requires the ...

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Method for cleaning slag in an electric furnace ...

What is claimed is: 1. In a method for cleaning slag created in a metallurgical process of a non-ferrous metal, in which the slag, fed into an electric furnace, forms by means of a reductant, a reduced slag layer and a matte layer beneath the slag layer, said electric furnace being equipped with a slag feed inlet at maximum melt level, a slag tapping hole at the bottom part of the slag layer ...

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How to clean up your cocaine - Rap Basement Message

03/03/2021  But there is an easy, no chemistry background method to cleaning your coke from leftover impurities. Is your coke any of these things: Hard-hitting, edgy, ampy, non-sociable, uncomfortable, paranoid, heart racey, tweaky, introverted? Well it's not supposed to. Clean cocaine is actually the exact opposite. In fact, it should be the most euphoric, sexual, talkative, clarifying, impowering ...

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(PDF) Slag-Coke Interactions in the Lead Blast Furnace

The interaction between metallurgical coke and slag is an important aspect of furnace operation in both lead production and ironmaking. This interaction occurs in the dripping zone of the blast ...

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Recovery of cobalt, nickel, and copper from slags, using ...

In the slag-cleaning process considered here, the furnace would be operated with a layer of electrically conductive coke or coal covering the slag. As the electrodes of the AC furnace penetrate this layer, there exists the possibility of the current flowing between the electrodes on the surface of the slag. This inter-electrode conduction not only reduces the energy dissipated in the slag ...

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Coke in the iron and steel industry - ScienceDirect

01/01/2019  They play an important role in coke reaction with gas, slag, and metal; their catalytic effect may affect coke properties significantly ... For implementation of the technology with coke oven gas injection, its preparation has to be done including fine cleaning to remove naphthalene, benzene hydrocarbons, and hydrogen sulfide and also compression. In gas-based DR processes, natural gas is ...

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Calcined Petroleum Coke, Injection Coke / Injection

INJECTION COKE / INJECTION CARBON. Injection Coke is product derived from Metallurgical Coke. The technique of Foaming Slag using Carbon in the EAF is used to increase productivity, lower operating costs and increase the quality of steel produced. It is also used as deoxidizing agent. The above product is manufactured at our Gujarat ...

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High Alumina Slag and Blast Furnace Operation –

27/05/2013  The slag fluidity is affected by the temperature and composition of the slag, with the latter influenced by ore gangue minerals and ash materials of coke and pulverized coal. CaO/SiO2 ratio in the slag compositions is normally adjusted to a range of 1.2 to 1.3 by an auxiliary material for improving the fluidity and desulphurization ability of the slag. The Al2O3 concentration in the slag is ...

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Method For Reducing And/Or Refining A Metal-Containing

Due to the Boudouard reaction in the coke bed floating on the surface of the slag, ... or gaseous reducing agents through injection nozzles; (b) slag sedimentation. Calcium carbide reacts with magnetite, which is dissolved in fayalite slag: 4(Fe 3 O 4) slag +[CaC 2] solid +(Fe 2 SiO 4) slag 14(FeO) slag +(CaSiO 3) slag +{CO} gas +{CO 2} gas . The reaction is exothermic at 1,250° C. ΔH 1250 ...

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What is carbon engine cleaning and is it worth it? Auto ...

27/03/2020  Does engine carbon cleaning work? Opinions and reviews on the results of all the different types of carbon cleaning are mixed. The invasive method is the most effective but is also the most ...

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Influence of slag composition on reduction control and ...

alloy by injection of FSF feed mixture to the bath1. The two-stage process of slag cleaning employed at KCM, where copper oxide is first partially reduced in one electric furnace and more comprehensively in a second furnace, results in very high recovery of both copper and cobalt2. 186 SLAG-CLEANING OPERATIONS AT NCHANGA SMELTER Slag is tapped every 4 hours from the FSF to the SCF via

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Method for cleaning slag in an electric furnace ...

What is claimed is: 1. In a method for cleaning slag created in a metallurgical process of a non-ferrous metal, in which the slag, fed into an electric furnace, forms by means of a reductant, a reduced slag layer and a matte layer beneath the slag layer, said electric furnace being equipped with a slag feed inlet at maximum melt level, a slag tapping hole at the bottom part of the slag layer ...

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Cocaine Purification - Drugs Health Issues - Mycotopia

I no longer do coke, but this was well written and may come in handy for those who do. If you're gonna use it, u might as well clean it first. I have personally spent many hours and many dollars in search of what I consider to be the "holy grail" of cocaine. In search of finding the quality of cocaine I grew up with in the 1980's. I have dabbled in many different purification techniques ...

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