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Paints, Adhesives Now Have Key Ingredient Made the Eco-friendly Way

by Thilaka Ravi on February 12, 2011 at 11:30 AM
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 Paints, Adhesives Now Have Key Ingredient Made the Eco-friendly Way

A key industrial material used in products ranging from paints to diapers can now be made in an eco-friendly way, from a renewable raw material without touching the traditional pricey and increasingly scarce petroleum-based starting material, claim scientists.

Their report on a new catalyst for making acrylic acid appears in ACS Catalysis, the newest in the American Chemical Society's suite of 39 peer-reviewed scientific journals.

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Weijie Ji, Chak-Tong Au, and colleagues note that acrylic acid is essential for making paints, adhesives, textiles, leather treatments, and hundreds of other products.

Global demand for the colorless liquid totals about 4 million tons annually. Acrylic acid is typically made from propylene obtained from petroleum.
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With prices rising, manufacturers have been seeking alternative ways of making acrylic acid without buying propylene. One possibility involves making it from lactic acid.

But current processes for using lactic acid are inefficient, less selective, and require higher temperatures and the accompanying high inputs of energy.

The scientists' potential solution is a new catalyst that can convert lactic acid into acrylic acid more efficiently.

Lactic acid is a classic renewable starting material, produced by bacteria growing in vats of biomass such as glucose and starch from plants.

In laboratory studies, the scientists showed that the new catalyst can convert lactic acid to acrylic acid more selectively at lower temperatures.

This could mean better use of lactic acid, lower fuel consumption, and less impact on the environment, the scientists suggest.

Source: ANI
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