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Digesting Organo-Silicon Compounds and Extracting Silicon to Enable Process Monitoring Without Introducing Contaminants

IP.com Disclosure Number: IPCOM000042249D
Publication Date: 2005-Feb-03
Document File: 3 page(s) / 32K

Publishing Venue

The IP.com Prior Art Database

Abstract

Disclosed is a method that digests any organo-silicon compounds (from trace amounts to bulk quantities) and extracts silicon to enable process monitoring that does not introduce additional ingredients/contaminants in the end product; after the reaction, the hydrogen peroxide (H2O2) becomes water (H2O) and oxygen (O2).

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Digesting Organo-Silicon Compounds and Extracting Silicon to Enable Process Monitoring Without Introducing Contaminants

Disclosed is a method that digests any organo-silicon compounds (from trace amounts to bulk quantities) and extracts silicon to enable process monitoring that does not introduce additional ingredients/contaminants in the end product; after the reaction, the hydrogen peroxide (H2O2) becomes water (H2O) and oxygen (O2).

Background

Currently, there is no method on the market to monitor concentrations of highly diluted (> 100:1) organo-silicon based compounds. Inaccurate in-house dilution of these compounds leads to issues with removing particles on the surface of low-potassium materials. In addition, there is no method to digest trace amounts of organo-silicon compounds and extract the silicon (< 50 ppm) to enable monitoring without introducing more ingredients or contaminants.

General Description

In the disclosed method, the digestion of organo-silicon compounds and the conversion of extracted silicon to a silicate is done simultaneously in a sonicated water bath. The bath temperature is approximately 50o C, with diluted (~1%) H2O2. The reaction time is about 20 minutes. After reaction/oxidation, the added and/or excess H2O2 becomes water and oxygen; no extra ingredients and contaminants are introduced in the final products.

The extracted silicon (in silicate form) is detected with either a UV/VIS, HPLC, or light scattering metrology after the complex formati...