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Publication No: IN202411025005 [India] Application No: IN202411025005
Title: A dry process method and apparatus for treating the wollastonite ore thereof
Publication Date: 31-10-2025 File Date: 27-03-2024
Inventor(s): Santosh Deb Barma; Prasanta Kumar Senapati; Danda Srinivas Rao; Rakesh Saini; Prasanta Kumar Baskey; Chinthapudi Eswaraiah
IPC Classification: C08K3/34, C21B13/00, C04B35/22, G06Q40/00, C01B33/24
Abstract:
The current innovation relates to the development of a dry process-based method and apparatus for the treatment of wollastonite feed having starting chemical  composition of CaSiO3 content below 79% and Fe2O3 content above 7% to produce the final wollastonite product having product composition of CaSiO3 content  above 95% and Fe2O3 content below 0.5%. The present process consists of two stages of processing which includes pre-processing the wollastonite ore to remove the  unwanted impurities (such as calcite, iron oxides, etc.) in the first stage, whereas treating the pre-processed wollastonite ore in a newly developed apparatus to separate  wollastonite (needle-shaped particles) from freely associated calcite and silica (granular-shaped particles) in the second stage.
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