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R & D Silicate Products, Ltd. Patents |
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Assignee: R & D Silicate Products, Ltd.
Address: Beer Sheva, IL
No. of patents: 1
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 5302364 |
Process for the preparation of amorphous silica |
April 12, 1994 |
| The invention provides a process for the production of a high grade amorphous silica having a purity of at least 90% active silica of the formula SiO.sub.2.nH.sub.2 O, comprising the steps of:a. comminuting and wet classification of porcellanite rock to form granules having an average di |
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