Results 11 to 20 of about 512,458 (303)
Journal of Basic and Applied Zoology, 2021 Background The ovotestis gland (the hermaphrodite gland) is a reproductive system organ that affects fertility of land snails. Thus, the present study was conducted to evaluate the effect of three inorganic salts (sodium carbonate, sodium benzoate, and ...
Soha A. Mobarak
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Fourier-transform infrared spectroscopy analysis of mechanochemical transformation kinetics of sodium carbonate to bicarbonate [PDF]
Science of Sintering, 2022 During mechanical activation, qualitative changes that can produce various phenomena occur in the material. In this study, anhydrous sodium carbonate was mechanically activated for 2, 7, 14, and 28 minutes in a vibro mill at a frequency of 3000 ...
Đorđević Nataša +5 more
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Technological studies of the use of modifiers in the flotation of calcium-containing minerals [PDF]
E3S Web of Conferences, 2020 Using samples of skarn scheelite-sulfide ore from the Vostok-2 deposit, studies were carried out to model combinations of increased dose of inorganic modifiers (sodium carbonate, water glass, sodium sulfide) based on publications by foreign researchers ...
Shepeta Elena +2 more
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Metals, 2022 The influences of heating pattern and sodium carbonate addition on the carbothermic reduction of ilmenite concentrate have been experimentally studied. The experiments were carried out using isothermal–gradient temperature technique between 1000 °C and ...
Zulfiadi Zulhan +4 more
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Optimization of uranium alkaline leaching from the solid waste sample containing high fluoride and nitrate by response surface methodology experimental design [PDF]
مجله علوم و فنون هستهای, 2023 Carbonate solution is used for the alkaline leaching of uranium from solid waste. Time, temperature, stirring speed (independent parameters) and total carbonate concentration, carbonate to bicarbonate ratio, and the ratio of liquid eluent volume to solid
M. Haji Hosseini +7 more
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Case Studies in Thermal Engineering, 2022 A new type of composite fire-extinguishing powder was prepared with expandable graphite (EG) and sodium carbonate as the main materials. The morphology, structure, and thermal stability of the extinguishing powder were characterized. A fire-extinguishing
Mei-Lin Zhang +7 more
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Journal of the Mechanical Behavior of Materials, 2020 The use of sodium carbonate as an alkali activator for slag to produce alkali-activated slag is promising due to its sustainable, economic and user-friendly properties.
Adesina Adeyemi
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Applied Sciences, 2019 In this study, three different hardening accelerating admixtures (sodium carbonate, lithium carbonate and a blend of sodium and lithium carbonates) were employed to prepare calcium sulphoaluminate cement-based mortars.
Luigi Coppola +5 more
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Alkali-activated slag cements produced with a blended sodium carbonate/sodium silicate activator [PDF]
, 2016 An alkali-activated slag cement produced with a blend of sodium carbonate/sodium silicate activator was characterised. This binder hardened within 12 h and achieved a compressive strength of 20 MPa after 24 h of curing under ambient conditions, which is ...
Engelhardt G +10 more
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SBA-15 synthesis from sodium silicate prepared with sand and sodium hydroxide
Materials Research Express, 2020 In the industry, sodium carbonate is used to prepare sodium silicate; however, this process generates great volumes of CO _2 . In this work, sodium hydroxide has been proposed to prepare sodium silicate using natural sand. Two experimental variables were
A L Lázaro +3 more
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