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An integrated and environmentally safe technology for extracting nonferrous and precious metals from scrap and waste of electronic engineering
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Treatment of the production waste water of Konstantinovka Refractory Plant
The coagulating action of aluminum sulfate and of the combination of it with polyacrylamide on a suspension of chamotte and clay, leading to a significant increase in particle size of the dispersed phase, was ...
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Dehydration of the residues of the return water of zaporozhe refractory plant
The residue dehydration process depends upon the properties of the residues and the form of treatment of them. The optimum residue filtration conditions under vacuum are vacuum 0.067 MPa, length of filtration ...
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Physicochemical properties of the deposits from the circulating water at the Zaporozhe Refractory Plant
The deposits in the study are multicomponent polydispersed suspensions characterized by a solid-phase concentration of 3.79–17.7% density 1–1.09 g/cm3, and a pH of 8.2–11.9. When the deposits are left to stand fo...
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Laboratory investigations of the dewatering of residues formed after refining effluent at the Veliko-Anadolsk firebrick factory
The process of filtering the residues formed in purifying the effluent depends on the composition of the residues and the method of treatment.
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Electrical treatment of suspensions of refractory materials
The authors investigate the coagulating action of a uniform electric field on chamotteclay suspensions. There is found to be an optimum value of the electric field strength as the important technological param...
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Clarification of the effluent of refractories plants and dehydration of the sediment
Effluent containing clay and chamotte can be treated satisfactorily in a clarifier with a suspended layer of sediment. The content of suspended matter in the clarified effluent does not exceed 13 mg/liter. The...
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Effluent purification at refractories plants
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The effluent treatment system of the Zaporozhe Refractories plant
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Drying magnesia refractories with the flue gas of the tunnel kiln
Experiments at the Magnezit Plant confirmed the feasibility of drying magnesia refractories with the flue gas in the first positions of a tunnel kiln. Drying the refractories in the section where the flue gas ...
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The sediment of industrial efluent
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Reducing the loss of titanium in smelting stainless steel
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Reducing the moisture content of materials extracted from production effluent in refractory plants by the filter press method
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Vacuum filtration and centrifugal dewatering of materials extracted from drainage in refractory plants
With vacuum filtration the following apply:
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Dewatering deposits formed in purifying effluent from refractory factories by vacuum filtration
The residue formed from effluent contaminated with chamotte dust, with coagulation and without coagulation, is thoroughly dewatered on vacuum equipment with concentrations of more than 700 kg/m3 of suspended part...
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Experience with purifying drain waters in pressurized hydrocyclones
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Process-water residues in fireclay and magnesia refractory production
Particle size analyses of process water residues from fireclay and magnesia refractory production enable settlement rates to be established within water cleaning plant.
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Cleaning process waste water with pressure centrifuges
Pressure centrifuges of diameter 25–50 mm can be used to clean process waste water contaminated with fine fireclay, magnesite, chrome-magnesite, or fireclay-clay mixtures; the centrifuges may be combined into ...
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Circulating water in systems for the wet purification of air from dust
In Systems for the wet purification of air from calcined magnesite and chamotte dusts the clarified waste waters can be used repeatedly without coagulation. If the water is contaminated with clay coagulation w...
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Physicochemical studies and purifying of drainage in refractories plants
The main contaminating component of drain waters is the dust suspension of clay, grog, chromite and magnesite.