Claims
- 1. A clear, uncolored, and water white silicate solution containing dissolved and reacted silica from ash of burned biogenic material, said solution containing at most an amount of 0.05% by weight (500 ppm by weight) of metal contaminants and free of undissolved and unreacted silica, suspended particles of organic material and carbonaceous material.
- 2. The silicate solution of claim 1 where, the biogenic ash comprises rice hull ash.
CROSS-REFERENCE TO RELATED APPLICATION
This application is a continued prosecution application of application Ser. No. 09/139,236 filed Aug. 25, 1998, which is a division of application Ser. No. 07/842,915 filed Feb. 27, 1992 (now U.S. Pat. No. 5,833,940 granted Nov. 10, 1998), which is a continuation-in-part application of application Ser. No. 07/483,440, filed Feb. 7, 1990 now abandoned, which is a continuation application of application Ser. No. 07/225,107, filed Jul. 27, 1988 now abandoned, which claimed priority of UK 8717861 filed Jul. 28, 1987.
US Referenced Citations (5)
Continuations (1)
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Number |
Date |
Country |
Parent |
07/225107 |
Jul 1988 |
US |
Child |
07/483440 |
|
US |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
07/483440 |
Feb 1990 |
US |
Child |
07/842915 |
|
US |