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1.
TECHNOLOGY OF QUARTZ GLASS PRODUCTION FROM NATURAL AND SYNTHETIC RAW MATERIALS
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(Not-set)
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When comparing the optical characteristics of the obtained glasses in the UV region of the spectrum, it was shown that the glasses welded from KFK have greater transparency and higher transmission in the ...
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2.
DEFECTS AND MICROIMPURITY IN GLASS FROM NATURAL MILK-WHITE QUARTZ FROM DEPOSITS OF THE SOUTH URALS
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(Not-set)
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The paper shows micro-impurities and defects occurring in glass welded by two-stage method from natural quartz mined in the Urals. It is established that the quality of glass depends on the presence and ...
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3.
Inner friction in quartz glass made from natural and artificial raw ma-terials
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(Science for glass production)
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A sequence of operations for the manufacture of quartz glass samples from natural highly enriched raw materials and synthetic silicon dioxide is described and implemented. The main attention is paid to ...
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4.
Structural and phase changes in natural quartz crystal upon fluoride treatment
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(Science for glass production)
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New information has been obtained on the structural changes occurring during the fluorination of natural crystalline quartz with ammonium hydrodifluoride. The morphological, structural and phase features ...
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5.
EXPERIMENTS ON ENRICHMENT AND SMELTING OF CERTIFICATION GLASS INGOTS FROM QUARTZ OF THE NAILYGOLD ORE DEPOSIT (SOUTH URAL)
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(Not-set)
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A new approach to the enrichment of natural milky-white quartz is proposed. The proposed methods of technological conversion with the smelting of certification glass ingots were tested using quartz from ...
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6.
PNEUMATIC CLASSIFICATION OF QUARTZ SANDS IN A CROSS-FLOW SEPARATOR
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(Not-set)
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It is shown that the extracted natural quartz sands, widely used in glass, refractory, ceramic, foundry and other industries, as a rule, do not meet the requirements for granulometric composition set by ...
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7.
Plasma Technology for the Production of Glass
Pellets Based on Waste from the Enrichment of Ferruginous Quartzite KMA
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(Not-set)
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A technology has been developed for producing glass microspheres in a plasma reactor based on the wastes of enrichment of ferruginous quartzites KMA. The regularities of the influence of the flow rate ...
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8.
Foam Glass Synthesis by a Hydrate Method Based on Various Natural Materials
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(Not-set)
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A number of charge compositions have been developed on the basis of quartz sand of the Chalgan deposit, gaize of the Botchinsky deposit, slag of the Artemovskaya TPP and diatomite of the Chernoyarsk deposit. ...
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9.
High Purity Quartz of the Uralian Type - Raw Material for High Purity Quartz Glass
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(Not-set)
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... achieved due to the natural features of quartz of metamorphogenic-metasomatic genesis and the enrichment schemes developed for it. Resources of this type are concentrated within the Kyshtym granular quartz ...
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10.
Fine-grain inhomogeneity in quartz glass
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(Science for glass production)
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A physicochemical analysis of technologies for creating quartz grains and smelting glasses from them has been carried out. Experimental smelting of glass from grits has been carried out. Melting conditions ...
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11.
Conditions of melting quartz glass with high purity and structural quality
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(Science for glass production)
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Based on the analysis of the conditions for the formation of quartz of various deposits, their structural, physicochemical properties, known technologies for the production of quartz grains, new operations ...
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12.
Technological concentration of mineral admixtures in the fine fraction of quartz powder upon grinding
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(Raw materials)
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With the use of a natural impurity - albite - a qualitative picture of the enrichment of the fine fraction of quartz sand in the grinding process has been experimentally established. It is shown that in ...
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13.
Magnetic after dressing of the quartz sand at the glass works
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(At the enterprises and institutes)
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The experience of industrial operation of a permanent magnet separator based on Nd - Fe - B EMC design for dry magnetic re-enrichment of quartz sands at a glass plant is considered. The proposed magnetic ...
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14.
CERAMICS BASED ON POWDERS SYNTHESIZED FROM CALCIUM NITRATE AND SILICIC ACID PREPARED VIA ION EXCHANGE METHOD
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(Not-set)
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Ceramics in the CaO–SiO2 and Na2O–CaO–SiO2 systems were obtained from powders synthesized from aqueous solutions of silicic acid and calcium nitrate at a molar ratio of Ca/Si = 0.5 by direct precipitation ...
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15.
DEVELOPMENT OF NANOMODIFIED CEMENT USING MICROSILICA, POLYCARBOXYLATE AND DUNE SAND: OPTIMIZATION OF COMPOSITION AND STRENGTH CHARACTERISTICS
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(Not-set)
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This study presents the development and experimental validation of nanomodified cement obtained by joint grinding of clinker, gypsum, microsilica, polycarboxylate superplasticizer, and dune sand. The optimal ...
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16.
OPERATIONAL-DIGITAL ANALYZER OF CONTENT OF MAGNETICALLY ACTIVE FERRO-IMPURITIES OF LOOSE MEDIA (USING FELDSPAR AND QUARZ SAND AS AN EXAMPLE)
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(Not-set)
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... analyzer of operational control was developed on the basis of an improved version of this method with higher accuracy. Its work was tested on natural raw materials, in particular, feldspar and quarz sand ...
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17.
PHYSICOCHEMICAL STUDIES OF DIABASE ROCKS OF THE UZUNBULAK DEPOSIT TO OBTAIN ACID-RESISTANT MATERIALS
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(Not-set)
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The chemical and mineralogical compositions, physical and chemical characteristics and phase transformations of diabase rocks of the Uzunbulak deposit were studied. It has been shown that as a result of ...
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18.
SYNTHESIS OF MULLITE-SILICA CERAMICS WITH ENHANCED ELECTROPHYSICAL PROPERTIES
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(Not-set)
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Presents the results of the synthesis of mullite-silica ceramics with improved electrophysical characteristics based on natural kaolinite raw materials extracted in the Orenburg region. The main attention ...
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19.
ANTI-FILTRATION AND SORPTION CHARACTERISTICS OF OVERBURDEN ROCKS FOR RAW MATERIAL EXTRACTION FOR THE CEMENT INDUSTRY
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(Not-set)
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The article presents the results of determining the anti-filtration and sorption capacity of palygorskite and other clays of the Borshchevsky and Voskresensky cement raw material deposits, which are overburden ...
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20.
FERROIMPURITIES OF GLASS AND CERAMIC RAW MATERIALS: NEW IN DIAGNOSTICS OF MAGNETIC PROPERTIES (FOR MAGNETIC SEPARATION TASKS)
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(Not-set)
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... using a new magnetic rheological method. Three options for its implementation are described. Results ferroimpurities’ magnetic susceptibility determination, consisting in natural sand and feldspar, are ...
