Basalt stone castings with enhanced thermal-shock and acid resistance

Bykov, I. I.; Bogatyreva, Zh. D.; Lekarenko, L. F.; Bogno, V. A.

doi:10.1007/bf00679925

Cited by 1 publication

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“…So far, basalt is only used as a foundation stone for building houses. Along with the development of technology and science, basalt rock can be processed into basalt fibers [2,3], basalt castings [4], and ceramics [5,6]. The basis for the determination can be processed into basalt fiber, foundry basalt or basalt rock by calculating the acidity modulus (Ma) or acidity coefficient (Ka) and or metal silicate index (Nx) [7].…”

Section: Introductionmentioning

confidence: 99%

Leaching Basalt Rock using Averrhoa Bilimbi Extract

Sumardi

Hendronursito

Isnugroho

et al. 2021

JKPK

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This research was conducted to determine the effect of solid/liquid ratio (s/v), temperature, and stirring Speed on per cent extraction of iron using oxalic acid from Averrhoa bilimbi. The variation of the solid/liquid (s/v) is 10%, 15% and 20 (%), the temperature variations used are 30, 60 and 90 oC, while the variation of the stirring Speed uses 200, 400 and 600 rpm. Some basalt rock samples are put into the reactor and leached using an oxalic acid solution from Averrhoa bilimbi. Within a certain period of time, the filtrate was taken and analyzed for Fe content using Atomic Absorption Spectroscopy. The residue was analyzed using XRF and XRD. The results showed that the highest percentage of iron extraction for basalt rock leaching experiments using oxalic acid from Averrhoa bilimbi was achieved at a temperature of 90oC, 10% of solid/liquid ratio, 400 rpm stirring speed and 120 minutes of leaching time with a percent iron extraction of 65.90%. XRD analysis results showed that the compounds formed in the residual leaching were Anorthite, Ferrosilite, Cristobalite and quart low.

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