Engelhard Corporation

The Texas A&m University System

Dennis R Taylor

Charles B Ungermann

Timothy D Phillips

Keith A Delaney

A correlation is established between aflatoxin B1 binding on raw montmorillonite clays and the ratio of their surface acidities divided by their porosities for surface acid sites whose pKa values fall in the range 5.0-6.8 (i.e. weakly acidic) and porosities for pores whose diameters fall in the region 50-600 A. This information provides a method for preselecting clay additives for animal feeds which have enhanced toxin binding capacity.

Animal feed containing selected montmorillonite clay as additive and

A dry solid animal feed composition in which biodegradable feed is contaminated with a mycotoxin and is admixed with a mycotoxin inactivating agent comprising particles of a phyllosilicate mineral capable of inactivating mycotoxins, said particles being coated with a sequestering agent in an amount sufficient to enhance the mycotoxin inactivating capacity of said phyllosilicate.

Animal feed additive and method for inactivating mycotoxins present in

A process for making acid-activated bleaching earth from certain naturally occurring mixtures of calcium bentonite and attapulgite clay. The process involves treating such clay with low levels of activating acid which are mixed with the dried and ground clay, or spray dried from slurries containing the clay-acid mixture. Advantages include: lower acid costs/unit mass of clay treated, lower production costs (no washing, filtering, or waste treatment steps) and environmental soundness (no harmful environmental waste products are produced).

Process for making acid activated bleaching earth using high

A process for making acid-activated bleaching earth from a crude attapulgite clay. A crude is selected which is mildly acidic and contains at least about 90% attapulgite. The process involves treating such clay with low levels of activating acid which are mixed with the dried and ground clay, or spray dried from slurries containing the clay-acid mixture. Advantages include: lower acid costs/unit mass of clay treated, lower production costs (no washing, filtering, or waste treatment steps) and environmental soundness (no harmful environmental waste products are produced).

Growing community of inventors

Houston, TX, United States of America

Dennis R Taylor