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failures. This standard is intended for use by sulfuric acid manufacturers and end users that have stationary sulfuric acid storage tank systems. 1.2 This standard covers the storage of fresh and process sulfuric acids and oleum that may be handled in carbon steel equipment. Typical fresh acid concentrations are 93% and 98% sulfuric acid.
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This article presents a clean and efficient method for extracting Ti, Al, and Mg components from Ti-bearing blast furnace slag with sulfuric acid. TBFS was calcined with concentrated sulfuric acid and then leached with deionized water. Variables such as acid-slag ratio, calcination temperature, and calcination time were studied. It was …
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In this paper, we proposed a novel method to eliminate nocuous Cr(VI) from chromium slag with poplar lignin by electrochemical treatment in sulfuric acid solution. In this electrochemical process, self-made Ti/SnO2-Sb anode and graphite cathode were applied, and the oxidative degradation of lignin proceeded simultaneously with the …
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The purpose of vibrating frequency optimization is the smooth and energy efficient functioning of the screen. First, by using analytical methods, the optimal vibrating …
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The optimum conditions of sulfuric acid leaching process were particle size at < 0.045mm, sulfuric acid concentration at 90 wt.%, acid/slag mass ratio at 1.6:1, feeding temperature at 120 °C ...
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Steel slag has been proven to be an effective environment remediation media for acid neutralization, and a potential aid to mitigate acid mine drainage (AMD). Yet its acid neutralization capacity (ANC) is …
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Benefits of Vibrating Screens. Vibratory screens are one of the main types of industrial screening equipment. There are several mechanical screening solutions available …
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The dominating copper phases in the slag are Cu, Cu2O and CuFeO2 (XRD and SEM-EDS). Leaching copper from these phases using sulfuric acid has a fast dissolution kinetics. Smaller par-ticle size, higher temperature (up to 40 C) and increasing mixing power (up to 0.26 kW/m3) enhance the leaching kinetics.
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Technical specification General data Materials All kind of bulk material: aggregates, ores, recycling material, slag etc. Maximum feed size 80 mm Screen Type of screen Multiple vibrating screen Screening area 11 m² - 26.4 m² No. of screen decks Single deck & …
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In this part of the research, it was decided to analyze the efect of sulfuric acid concentration on the leaching efi-ciency of copper from flash smelting slag. The concentra-tion of the H2SO4 solution was varied from 50 through 100–200 g/l. The others leaching parameters were constant. (T = 50 °C, l/s = 10).
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The dark Fenton conditions were adopted for the oxidative degradation of the dyes to test the performance and stability of the heterogeneous sulfuric acid activated EAF slag catalyst in suppressing the accumulation of Fe 3+ and its complexation with carboxylate species from decomposing organic matter. Besides, the absence of photo …
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Further experiments were performed with a 5.0% dilute sulfuric acid solution used to leach a Ti-bearing blast furnace slag sample that had been calcined with concentrated sulfuric acid, at a liquid-solid ratio of 10, a reaction time of 60 min, and a reaction temperature of 338.15 K (65 °C).
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Vibrating screen specifications include size, screening area, sieve plate, drive system, vibration characteristics, structural materials, etc., which can vary …
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There were three specific objectives in this study: firstly, to investigate the effect of cyclic preloading on the sulfuric acid resistance of GPM; secondly, to examine the effect of GGBFS content on the sulfuric acid resistance of GPM; and thirdly, to compare the different sulfuric acid resistance between GPM and OPC mortar (OPM) after cyclic ...
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In this study, geopolymer is prepared from 'ground granulated blast furnace slag' (GGBS)–a powder from grinding the by-product of slag waste from blast furnace of steel plants. For comparison, conventional cement, Portland pozzolana cement (PPC) containing fly ash was considered. To achieve simultaneous acidic and sulphate attack, …
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Lee and Lee [10] investigated the sulphuric acid resistance of the sodium silicate activated fly ash geopolymers incorporated with 10–50% slag. Their results indicated the acid resistance of Al-substituted sodium calcium silicate hydrates N-C-(A)-S-H produced by AAFA incorporated 30% slag was worse than C-S-H generated by the …
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A solid to liquid ratio of 100 g/L was used by Lundstrom et al. [30] when they studied sulfuric acid leaching for capturing copper from copper rich convertor slag, a copper rich process solution ...
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SEMI C44 - Specification and Guide for Sulfuric Acid. Abstract. The first purpose of this Specification and Guide is to standardize requirements for Grades of sulfuric acid used in the semiconductor industry and to document testing procedures that may be used to support those requirements. Alternative methods may also be used as long as they ...
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Abstract. The extraction of vanadium from mechanically activated converter slag was studied in dilute sulfuric acid solution. The effects of roasting and leaching parameters were investigated. The results show that Ca/V mole ratio, roasting temperature, leaching temperature, S/L ratio and leaching time significantly affected the dissolution of ...
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1. Introduction. The converter slag generated during the pyrometal-lurgical copper production generally contains significant amounts of some valuable metals such as copper, cobalt, nickel and zinc ...
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This study aims to investigate the performance of alkali-activated slag concrete (AASC) and conventional concrete (CC) against sulphuric acid attack. From the preliminary investigations conducted ...
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Carbonation leaching and sulfuric acid leaching used for extracting vanadium from the calcification roasted slag were compared and evaluated in detail, …
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According to the equation of Nd transformation rate in the sulfuric acid leaching process under different sulfuric acid concentration conditions, the reaction series of sulfuric acid concentration K = 6.4, which is greater than 1, indicating that increasing sulfuric acid concentration can change the kinetic-control region and strengthen the ...
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The performance of alkaline activated ground slag/ultrafine palm oil fuel ash (AAGU) mortars upon their exposure to 6% of H2SO4aq (acid) for 60 days was investigated.
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The solid–fluid reaction can be represented by the following reaction: (8) A fluid + b B solid → Products where A, B, and b represent sulfuric acid, roasted vanadium slag undergoing leaching and stoichiometric coefficient, respectively. In SCM, leaching process of roasted vanadium slag in sulfuric acid consisted of five steps as follows: 1)
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Strong Acid Acid Storage Loading/Unloading Transportation Sulphur Systems Liquid SO 2 Boiler Feed Water Steam Systems Cooling Water Effluent Treatment Utilities Construction Maintenance Inspection Analytical Procedures Materials of Construction Corrosion Properties Vendor Data. DKL Engineering, Inc. Handbook of Sulphuric Acid …
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Circular Vibrating Screen CK 402 / CK 403 Options Dedusting hood Technical specification General data Materials Limestone, ore, quartzite, etc. Maximum feed size …
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This paper reported the calculation of the reaction heat in titanium-bearing blast furnace slag (abbreviated as TBFS)-H2SO4 system based on estimation of thermodynamic data of CaTiAl2O6 by mechanical mixture model. The thermodynamic analysis indicated that CaTiAl2O6 was more stable than the corresponding ternary …
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Form: Sulfuric Acid, FCC, Rev.1.0, 02/18, EF This product is for further commercial manufacturing, laboratory or research use, and may be used as an excipient or a process solvent for pharmaceutical purposes. It is not intended for use as an active ingredient in drug manufacturing nor as a medical device or disinfectant.
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The molecules of sulfuric acid must diffuse through the film formed by solid product tothe surface of ZSOD particles to react with zinc and indium-bearing slag. Hence the possibility of the reaction kinetics to be controlled by the internal diffusion through the solid product layer is high and towards which appropriate kinetic models were ...
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