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silica sand extraction from ash

silica sand extraction from ash

extraction of silica from rice husk - ijerd extraction of silica from rice husk 72 d. proposed process this is new process, silica is manufactured by using rice husk ash as a source of silicate or silica and this ash is then reacted with sodium hydroxide which yields the sodium silicate, which on further reacting with sulphuric acid gives silica along with by-product sodium sulphate

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