Selective recovery of rhenium from molybdenite flue-dust leach …

The wet-scrubbing/leaching with water/dil. acid followed by resin ion exchange adsorption and solvent extraction are the most employed techniques. But the long duration of adsorption operation following the scrubbing/leaching with lower sorption capacity and less selectivity increases the process cost [7].

WhatsApp: +86 18221755073

Air Pollution Control Technology Review: Adsorption

Adsorption is a mass transfer process in which a porous solid comes in contact with a liquid or gaseous stream to selectively remove pollutants or contaminates …

WhatsApp: +86 18221755073

Leaching and adsorption circuits – for better metal extraction

The Leach-CIP circuit is a system comprised of separate leaching and adsorption tanks. In leaching, ore which has been ground to pulp is placed in agitated tanks with sodium cyanide solution and gold and silver is dissolved into the slurry solution. The leach may require 24 to 72 hours to complete, and after the leach is completed, the leached ...

WhatsApp: +86 18221755073

Biomass-MOF composites in wastewater treatment, air …

The biomass/MOF composite showed a good adsorption effect to remove Cu 2+ and Pb 2+ from water. The optimal adsorption conditions, isotherms, kinetics, thermodynamics, and cycle stability of their adsorption were investigated. It was fond that hydration radius of heavy metal ions affected the adsorption rate as observed in other …

WhatsApp: +86 18221755073

Leaching and cementation of heavy metals from electric arc furnace dust

Electric arc furnace dust (EAFD) has attracted more and more attention as a kind of metallurgical solid waste with huge production. How to reduce its harm to the environment and efficiently recover valuable metals such as zinc, lead and iron from its complex components to realize the comprehensive utilization of EAFD is the aim of …

WhatsApp: +86 18221755073

Factors influencing the rate of gold cyanide leaching and adsorption …

Therefore, the solids density in the two sections of the plant where mass transfer rates are critical (leaching and adsorption) is generally set by the performance of equipment (such as the thickener or other physical barriers such as the inter-stage screens) that has no bearing on reaction kinetics, and the impact of solids density on the gold ...

WhatsApp: +86 18221755073

Recovery and purification of molybdenum from Ni–Mo ore by direct air

A direct hydrometallurgical process for molybdenum extraction and recovery from a Ni–Mo ore is reported. The novel technology includes leaching molybdenum by air oxidation in alkaline solution,purifying the leach solution with freshly precipitated "nascent" Fe(OH) 3 and "buffer agent" NaHCO 3, enriching molybdenum by ion exchange and …

WhatsApp: +86 18221755073

Preparation of adsorptive TiO2/SiO2 core-shell nanospheres …

Preparation of adsorptive TiO 2 /SiO 2 core-shell nanospheres by ultrasonic-coupled alkali leaching process: Synergy of adsorption and photocatalysis towards 2,4-dinitrophenol ... spent SCR catalysts were sieved to pass through mesh size of 200 after air sweeping to remove the dust on the surface. Then the ultrasonic-coupled alkali …

WhatsApp: +86 18221755073

A comprehensive review on dust removal using …

The dust removal efficiency when the EDS was activated before dust loading was 97.6% as compared to 91.5% when the EDS was activated after the dust has been deposited on the surface. The power consumption was between 0.17 and 0.48 W/m 2 and increased with an increase in frequency reaching up to 10 W/m 2 [67]. Atten et al. …

WhatsApp: +86 18221755073

Dual Purpose Industrial Air Scrubber For Dust Chemical Odor

The Air Rhino is capable of creating a negative air environment, and it is equipped with an indusus deep-bed carbon filter and extended filter depth, which leads to a longer …

WhatsApp: +86 18221755073

XCF air inflation flotation cell

XCF air inflation floatation cell structure as shown in the diagram, is composed of tank, large isolation plate impeller with top and bottom blades, seat stator radial blade, split disc cover, split center tube, connecting …

WhatsApp: +86 18221755073

Air-water interfacial collapse and rate-limited solid …

DOI: 10.1016/j.jconhyd.2024.104382 Corpus ID: 270301949; Air-water interfacial collapse and rate-limited solid desorption control Perfluoroalkyl acid leaching from the vadose zone.

WhatsApp: +86 18221755073

Recovery of Rhenium and Molybdenum from Molybdenite Roasting Dust

Ion exchange separation of rhenium using Purolite A-170 and Purolite A-172 was carried out from the dust leach solution of molybdenite concentrate.

WhatsApp: +86 18221755073

Home Dust Removers (320)

Warkul Dust Cleaner Electrostatic Adsorption Effective Dust Removal with Hanging Hole Easy to Clean Dust Duster Home Supplies $ 4 23. current price $4.23. ... ZUBKTE Dust Remover Air Purifier Window Vacuum Cleaner With Large Suction for Small Suction Gaps. Car Mounted Wireless Handheld Window Sill Cleaning Device

WhatsApp: +86 18221755073

ARV Dust Remover

5825 Turnberry Drive Hanover Park, IL 60133 847-290-9680 Fax: 630-980-2269 [email protected]

WhatsApp: +86 18221755073

8 Best Air Purifiers of 2024, Tested & Reviewed

This air purifier from Honeywell, another established brand in the home comfort space, uses a pre-filter and true HEPA filter to capture contaminants down to .3 …

WhatsApp: +86 18221755073

A simple and efficient method for selective recovery of …

These approaches minimize the overlap between the leaching stage of Cu and those of other metals. For example, Somasundaram (Somasundaram et al., 2014) adopted a segmented leaching approach, with the leaching of Sn occurring in the first stage, followed by the leaching of Cu, Ni, and Pb in the second stage. Following the deposition of Pb via ...

WhatsApp: +86 18221755073

Study on the mechanism of ultrasonic inhibition of germanium adsorption …

In this paper, the germanium loss caused by Fe(OH)3 colloid adsorption in the process of zinc oxide dust neutralization leaching was studied by using simulated solution. By comparing the conventional method and ultrasonic method, it was found that ultrasonic method could reduce the germanium loss by 69.24%. Characterization …

WhatsApp: +86 18221755073

Silica extraction from rice husk: Comprehensive review and …

Silica is a naturally occurring mineral that is present in many materials, including rice husk. Silica has a wide range of industrial and technological applications, including use as a reinforcing agent in rubber and plastic, a filler in paint and coatings, and a filter in the production of food and beverages.

WhatsApp: +86 18221755073

Indoor air dust removal system based on high-voltage …

Meanwhile, in order to verify the feasibility of the dust removal system for particulate matter adsorption, an enclosed air chamber of 8000 cm 3 was fabricated to measure the effect of the DG, the PM 2.5 concentration decreases from 954 μg/m 3 to 50 μg/m 3 within 199 s after going through a palm-sized dust-removing glass. In addition, …

WhatsApp: +86 18221755073

HCl removal from cement bypass flue gas at medium-high …

This study investigated the HCl removal performance of cement bypass dust (CBPD) at medium-high temperatures (500–700℃). ... The results show that HCl adsorption capacity increased first and then decreased with increasing temperature, reaching a maximum of 676 mg/g at 600°C. ... Reduction of the chloride content by air …

WhatsApp: +86 18221755073

Adsorbent air cleaning: a new way to think about …

Adsorption is a process which removes toxic gases by passing air through a porous substance such as activated carbon (which is called the adsorbent medium). The …

WhatsApp: +86 18221755073

Mechanism of removal of toxic arsenic (As) from zinc sulfate …

The zinc content of the zinc sulfate solution obtained by leaching zinc oxide dust is 120 g/L, and the pH value is 1.5–2. ... removal by using CSA, whereas adsorption and net sweeping contributed to As(V) coagulation by using CSAF and CSF with higher iron proportion at neutral pH. 3 µm MPs were removed by net sweeping of amorphous Al/Fe ...

WhatsApp: +86 18221755073

Long-term leaching from MSWI air-pollution-control residues: leaching …

Long-term leaching of Ca, Fe, Mg, K, Na, S, Al, As, Ba, Cd, Co, Cr, Cu, Hg, Mn, Ni, Pb, Zn, Mo, Sb, Si, Sn, Sr, Ti, V, P, Cl, and dissolved organic carbon from two different municipal solid waste incineration (MSWI) air-pollution-control residues was monitored during 24 months of column percolation experiments; liquid-to-solid (L/S) …

WhatsApp: +86 18221755073

Enhanced removal of organic matter from oxygen-pressure leaching …

At present, the removal of organic matter from zinc hydrometallurgy system mainly relies on activated carbon adsorption method (Park et al., 2019). Lin et al. (2018) and Wang et al. (2019) studied the removal of tannins from zinc leaching solution by activated carbon adsorption successively, and its removal efficiency for tannins …

WhatsApp: +86 18221755073

Efficiency and mechanism of adsorption for imidacloprid removal …

The effect of solution pH on the adsorption removal of imidacloprid from water by Fe/Mg–WHBC ... Average air humidness = 68%) and the adsorption experiment was carried out for 291 days to explore the effect of aging on the adsorption performance of Fe/Mg–WHBC. ... The Fe leaching concentration (0.0525–0.298 mg/L) was below the ...

WhatsApp: +86 18221755073

Separation of Re and Mo from roasting-dust leach-liquor …

Section snippets Materials and reagents. The outgoing dust of the roasting furnace was obtained from the Karmania Co. (Kerman, Iran). X-ray diffraction (XRD) patterns showed that the main constituents of the dust are molybdenum oxide (MoO 3), hematite (Fe 2 O 3) and perrhenate (Re 2 O 7).Chemical analyses of three dust …

WhatsApp: +86 18221755073

Insight into the dispersion mechanism of Cl efficient removal …

In this study, the Cl removal efficiency of three leaching agents for blast furnace dust was evaluated. Notably, citric acid emerged as the most efficient agent for Cl removal. Thus far, investigations into Cl leaching from dust have predominantly concentrated on process parameter optimization, with limited attention to Cl leaching mechanisms ...

WhatsApp: +86 18221755073

Leaching of chemicals from microplastics: A review of …

The leaching potential of plasticizer is closely related to its solubility, and the leaching risk of immiscible plasticizer is higher. Some researchers have found that the leaching rates of phthalates (e.g. DEHP) in water decreases with the increase of their molecular weights (Jamarani et al., 2018; Lindström and Hakkarainen, 2007).

WhatsApp: +86 18221755073

Mitigation of indoor air pollution: A review of recent …

The VOC gas component with the least amount of adsorption is methanol, which is only 10.6 mg/g. The adsorption capacity is mainly affected by the surface area …

WhatsApp: +86 18221755073

Leaching Agitation Tank

Air is fed in tank from the lower end of shaft, and blended with ore pulps to form uniform suspending mixed liquid. In the gold cyaniding process, leaching agitation tank is applied to leach and carbon-absorb ore pulps whose fineness is -200 meshes and whose density is less than 45%. Under similar circumstance, it is also applied to agitation ...

WhatsApp: +86 18221755073

Recovery of Rhenium and Molybdenum from …

Recovery of Rhenium and Molybdenum from Molybdenite Roasting Dust Leaching Solution by Ion Exchange Resins Sung-Ho Joo 1,2, Young-Uk Kim1, Jin-Gu Kang2, J. Rajesh Kumar, Ho-Sung Yoon 2, P. K. Parhi and Shun Myung Shin1,2,+ 1Department of Resource Recycling, University of Science & Technology (UST), Daejeon 305-350, …

WhatsApp: +86 18221755073

Synthesis of a Ce–La Adsorbent with Large Adsorption …

The presence of fluoride in the leaching solution of spent lithium-ion batteries (LIBs) can harm product purity and the environment and potentially lead to the corrosion of recycling equipment. However, the development of fluoride adsorbents face challenges due to their limited adsorption capacity. Herein, flaky porous Ce–La oxides adsorbent with …

WhatsApp: +86 18221755073

Removal of lead from leaching solution of EAF …

Download scientific diagram | Removal of lead from leaching solution of EAF dust by addition of sodium sulphide. Leaching solution composition: 50 g L-1 of zinc, 2 g L-1 of lead, 1 g L-1 of Al and ...

WhatsApp: +86 18221755073

Recent progress and challenges on adsorptive membranes for the removal

Moreover, the large surface area and redundancy of adsorption sites are important factors for the efficiency of adsorption and removal of pollutants from wastewater. It is, therefore, the objective of this paper to outline and present the classifications, synthesis, and various types of adsorptive membranes.

WhatsApp: +86 18221755073

Products

Useful link

Contact Us

0086-21-58386256
0086-21-58386258
[email protected]

Hot Products

Copyright © 2024.FIXIN All rights reserved.sitemap