Oxide products formed from calcined carbonate powder for use as biocide, chemical detoxifier and catalyst support products
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United States of America Patent
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Mar 13, 2018
Grant Date -
Feb 9, 2017
app pub date -
Dec 10, 2014
filing date -
Jan 2, 2014
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Abstract
A process and apparatus for manufacture of oxide products for use as biocide, chemical detoxifying, and catalytic support products, from caustic calcined carbonate powder, preferably from magnesite, dolomite, or hydromagnesite, is described. These oxide particles are characterized by high surface area, high porosity and a high degree of calcination, and the method of manufacture utilizes an indirectly heated counterflow reactor. The oxides may be used as a powder, granules, or formulated into a slurry and used as a spray, emulsion, foam or fog, or the powder product may be directly applied. Also described is the formation of particles with microstructures defined by at least one nano-crystalline structure positioned on the outer surface of the particles.
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