C - Chemistry – Metallurgy – 01 – B
Patent
C - Chemistry, Metallurgy
01
B
C01B 33/32 (2006.01)
Patent
CA 2629083
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.
La présente invention concerne un procédé de fabrication de silicate de sodium à partir d~une traînée de Kimberlite, un déchet solide obtenu lors de l'exploitation d~une mine de diamant. Le procédé consiste à faire réagir la traînée de Kimberlite avec un acide minéral afin d~éliminer les impuretés solubles dans l~acide, puis à digérer la traînée de Kimberlite traitée par l~acide avec une solution alcaline dans un système ouvert ou fermé, afin d~obtenir du silicate de sodium utile pour des applications commerciales.
Bajaj Hari Chand
Barochiya Dipti Jivanbhai
Chandra Suresh
Chunawala Jatin Rameshchandra
Dhar Maharaj Kishan
Council Of Scientific & Industrial Research
National Mineral Development Corporation Ltd.
Norton Rose Or S.e.n.c.r.l.,s.r.l./llp
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