Detoxification of chromium slag and contaminated soil

Chromium slag and contaminated soil are significant risks to human health. Their detoxification is a difficult problem. In this study, we tried to detoxify the chromium slag and contaminated soil by a solid reduction method. The final product is ceramist. The mechanism and process of detoxification of chromium slag and contaminated soil were …

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Recovery of chromium from chromium-bearing slags …

The methods for recovering chromium from EAF slag and AOD slag are similarly attributed to their similar chemical and phase compositions. Those methods …

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(PDF) Recovery of metal from slag/mixed metal generated in ferroalloy

The mixed metal generated during the production of ferrochrome contains about 37% chromium (average). Furthermore, the slag from the smelting furnace often tends to be viscous and retains particles of the metal of the order of 1–2%. ... the better would be the performance of any gravity separation equipment. After crushing the samples A and B ...

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Equipment required for sorting domestic waste incineration slag

Domestic waste incineration slag crushing, sorting and reuse process: (1) Transport the incineration slag from the storage area to the third-level conveyor belt through a loader; (2) The iron remover installed on the conveyor belt is primarily used to remove iron blocks or small and medium-sized iron-containing impurities in the slag ...

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Study on preparation of glass-ceramics from municipal solid …

DOI: 10.1016/j.jobe.2023.106080 Corpus ID: 256748824; Study on preparation of glass-ceramics from municipal solid waste incineration (MSWI) fly ash and chromium slag @article{Li2023StudyOP, title={Study on preparation of glass-ceramics from municipal solid waste incineration (MSWI) fly ash and chromium slag}, author={Chuanwei Li and …

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Detoxification and comprehensive recovery of stainless

Long et al. (2015) used reduction roasting and magnetic separation technology to treat chromium slag. In the process of reduction roasting, additives Al 2 O 3 and CaF 2 were used to destroy the structure of magnesium ferrite and improve the grade and recovery of Fe. The final product chromium-iron powder contains 72.54% Fe and …

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Enrichment Characteristics of Cr in Chromium …

Chromium slag is the waste residue generated by the industrial process of extracting chromium (Cr) from chromite ore. Due to different needs for chromite quality in the target product, the extraction …

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CN102321805A

The invention has a simple process, has good recovery quality, the recovered materials are cleaned, the grain size is moderate and uniform and the hardness is high through four processes, i.e. crushing, shaping, separation, sorting and the like; and in addition, the invention protects the environment, saves resources, realizes the sustainable ...

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Effect of Calcium Oxide on the Crushing Strength, …

The effect of calcium oxide on the crushing strength, reduction, and smelting performance of high-chromium vanadium–titanium magnetite pellets (HCVTMP) was studied in this work.

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Slag Crushing | THE STANDARD Slag Recycling

THE STANDARD Jaw crusher was specially designed for the slag recycling industry. It has the unique patented H ydraulic R elease M echanism ( ) to guarantee continuous crushing. No blockage when uncrushable materials like metal hit the crusher. When an uncrushable object like tramp iron gets into the crusher chamber the predetermined …

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Ruijie Renewable Resource Sorting Machine Manufacturer

Gravity Sorting Equipment. Jig Machine. +86-. 86+ . Ruijie Renewable Resource Sorting Machine.Specializing in the production of Magnetic …

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Fault monitoring method of domestic waste incineration slag sorting …

The main monitoring points of traditional sorting equipment fault monitoring methods are usually limited to the inlet and outlet, making it difficult to monitor the internal equipment, which may affect the accuracy of fault monitoring. Therefore, a new fault monitoring method based on back propagation neural network has been studied and …

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Metals extraction processes from electronic waste: …

The skyrocketing demand and progressive technology have increased our dependency on electrical and electronic devices. However, the life span of these devices has been shortened because of rapid scientific expansions. Hence, massive volumes of electronic waste (e-waste) is generating day by day. Nevertheless, the ongoing …

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(PDF) Effect of TiO2 on the Crushing Strength and

The effect of TiO2 on the crushing strength for high-Cr V-Ti magnetite pellets was studied in this paper. On one hand, the crushing strength obviously decreased with the increasing TiO2 contents.

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Recovery of chromium from chromium-bearing slags …

The results showed that a chromium concentrate with a chromium oxide content of 57.1% and a yield of 1.5% was obtained from ferrochromium slag …

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Comprehensive Slag Equipment Solution, crusher

RUIJIEZHUANGBEI offers customized solutions for slag equipment. With our one-stop service approach, we provide magnetic separator, crusher, jig machine.

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Solidification/stabilization of chromium slag in red mud …

The influence of chromium slag on the compressive strength of the red mud-based geopolymer was tested. At 3 d age in Fig. 4 a, as the chromium slag content increased from 0 wt% of R7G3-C0 sample to 10 wt% of R7G3-C1 sample, the compressive strength increased from 12.27 MPa to 15.73 MPa. The reason for the promotion effect …

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ferrochrome slag processing using dry magnetic separator

Valuable waste - Mineral Processing Summary: Ferrochrome industry waste, Ferrochrome Slag Processing Using Dry Magnetic Separator such as flue dust, contains chromite minerals that are considered to process for recovery of the chromium values, studies were conducted, with closer mineral separator and magnetic separation. Slag .

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Steel Scrap Crushing Automatic Sorting Solution

Steel Scrap Crushing Automatic Sorting Solution.These equipment are specially designed and manufactured by our company for a large amount of garbage tailings generated when processing light and thin scrap steel in the scrap steel industry.

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Highly efficient leaching of aluminum and chromium from …

1. Introduction. Aluminum-chromium slag (ACS), a by-product produced during the reduction of chromium from chromium ore by metal aluminum smelting, is a typical chromium-containing solid waste, with an output of about 50–60 million tons per year in China (Luo et al., 2020, Zhao et al., 2018a, Zhao et al., 2018c).ACS is mainly …

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Enrichment Characteristics of Cr in Chromium Slag after Pre …

Chromium slag is the waste residue generated by the industrial process of extracting chromium (Cr) from chromite ore. ... but also for the subsequent batching. Crushing and grinding of the raw materials were performed in a grinder, as shown in Figure 3 A. The grinder was suitable for the preparation of powdered samples of coal, ore, slag, …

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Slag Crushing and Metal Sorting #eddycurrentseparator

Slag Crushing and Metal Sorting #eddycurrentseparator #magneticseparator Hainan Project Trial Production Site.A pile of slag, in the eyes of our...

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Metals | Free Full-Text | Recovery of Chromium from Slags

Slags produced in the steelmaking industry could be a source of chromium. Slags contain, depending on different types of slags, between 2 to 5 wt.% of Cr. Roasting of slag with NaOH, followed by subsequent leaching can produce leachates which can be efficiently processed using electrocoagulation (EC). This paper provides results from the …

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Recovery of metal from slag/mixed metal generated in …

Virtually all charge chrome plants now use the crushing/jigging process to recover chrome alloy from both stockpiled and currently produced slag. Studies were carried out at R&D, Tata Steel to develop a flow sheet for the recovery of metal from metal–slag mix generated in its charge chrome (ferrochrome with 50–60% chromium) …

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FAQ of Slag Sorting Equipment Manufacturer

Find answers to frequently asked questions about slag sorting equipment, magnetic separator, crusher, jig machine. FAQ section provides product information &....

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A Comprehensive Guide To Crushing And Screening Equipment …

Crushing and screening equipment is a type of machinery used to process raw materials such as rocks, ores, and other aggregates for use in construction projects. The equipment typically consists of a primary crusher, secondary crusher, and screening equipment, all of which work together to process the raw materials and produce the …

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Aluminum Zorba Sorting Plant – Slag Crusher Plant

Aluminum Zorba Sorting Plant. Rotary Sieve; Magnetic Separator ... Bhupindra Machines Pvt. Ltd. has now established herself as an eminent manufacturer and exporter of Slag Crusher Plant, Stone Crusher, Coal Crusher, Magnetic Separators, Belt Conveyor System, Vibrating Screens, Vibrating Feeder and other material handling Equipment. …

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New technology and equipment for recycling slag …

special equipment is needed to recycle the highly abrasive metal-bearing slag; it is difficult to localize emissions of dust, vapor, and gas; and. the schemes are …

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Valuable Recovery Technology and Resource …

As a type of metallurgical solid waste with a significant output, chromium-containing metallurgical dust and slag are gaining increasing attention. They mainly …

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Slag Metal Sorting : TOMRA

Benefits of sensor-based slag metal sorting at a glance: Free metal recovery: Separating non-magnetic metallic particles effectively means earning revenue at low cost. Disseminated metal concentration: Concentrating metal containing slag particles before it undergoes separation, through crushing and jigging, protects crushers at little expense.

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Chromium iron slag washing equipment_Jinqiang Equipment

4. Drying: Dry the washed metal to make it more dry and convenient for storage and transportation. 2、 Advantages of chrome iron slag washing equipment 1 Efficient: The chrome iron slag washing equipment adopts advanced sorting technology, which can efficiently separate metals and non-metals, improving production efficiency. 2.

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X-ray Intelligent Coal Refuse Separator

0.55-0.8. Ambient temperature (°C) -15-+40. Staff MemberAnnual absorbed dose (mSv/year) ≤1. Boundary dose rate (uSv/h) ≤1, @10cm on the surface of the equipment shell. MS-K series coal gangue intelligent separator is a fully automatic intelligent mineral sorting equipment independently developed and manufactured by Tsinghua Tongfang …

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Recovery of metal from slag/mixed metal generated …

The studies showed that in the case of the charge chrome plant, crushing of mixed metal and slag to below 10 mm followed by jigging of the −10+1 mm material and …

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