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Patent No: US7335342 [USA] Application No: 11/375,687
Title: Process for the preparation of sodium silicate from kimberlite tailing
Issue Date: 26-02-2008 File Date: 14-03-2006
Inventor(s): Jasra, Raksh Vir; Bajaj, Hari Chand; Somani, Rajesh Shantilal; Mody, Haresh Mahipatlal; Chunawala, Jatin Rameshchandra; Ghelani, Devendra Lalijibhai; Ranpara, Hemal Narendrakumar; Barochiya, Dipti Jivanbhai; Chandra, Suresh; Dhar, Maharaj Kishan
IPC Classification: C01B33/22, C01B33/12, C01B33/142, C01B33/143
Abstract:
In the present invention a process for the preparation of sodium silicate from Kimberlite tailing generated as solid waste during diamond mining is disclosed. The process comprises, reacting Kimberlite tailing with mineral acid to remove acid soluble impurities followed by digesting acid treated Kimberlite tailing with alkali solution in a open or closed system to obtain sodium silicate useful for commercial applications.
Licensing Option: License is already granted. Technology has already been Commercialized. Further license is possible.
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Industrial Applications Bulk Chemicals [Chemistry, Chemical Processes] Chemistry, Chemical Processes Polymers [Chemistry, Chemical Processes] CleanTech [Chemistry, Chemical Processes] Sludge Treatment [Mining and Minerals] Waste management [Environmental (Clean Tech)]