alexa Pure Silica Extraction from Perlite: Its Characterization and Affecting factors
ISSN ONLINE(2319-8753)PRINT(2347-6710)

International Journal of Innovative Research in Science, Engineering and Technology
Open Access

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Research Article

Pure Silica Extraction from Perlite: Its Characterization and Affecting factors

Khushboo Srivastava1, Niharika Shringi2, Vijay Devra3, Ashu Rani4*
  1. Research Scholar, Department of Pure and Applied Chemistry, University of Kota, Kota, Rajasthan, India
  2. Research Scholar, Department of Pure and Applied Chemistry, University of Kota, Kota, Rajasthan, India
  3. Lecturer, Department of Chemistry, Govt. J.D.B. Girls P.G. College, Kota, Rajasthan, India
  4. Head, Department of Pure and Applied Chemistry, University of Kota, Kota, Rajasthan, India
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Abstract

A simple method based on alkaline extraction followed by acid precipitation and acid dissolution has been developed to produce pure amorphous silica from perlite. The reaction parameters such as molar ratio of NaOH/SiO2, reaction time and reaction temperature are varied for obtaining maximum silica conversion. About 70.6 % pure precipitated silica from perlite has been achieved in closed system at 120 ºC within 60 min. XRF, BET surface area, XRD, FTIR and SEM techniques are used to characterize the physico-chemical attributes of materials. The present research includes a cost benefit process under optimized conditions for produce wealth out of waste

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