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The Use of Ozone in Fragrance Oxidation/Medical Intermediates/Carbon Black Oxidation

2021-03-22

The Use of Ozone in Fragrance Oxidation/Medical Intermediates/Carbon Black Oxidation

Spice oxidation/pharmaceutical intermediates
Spice oxidation/pharmaceutical intermediates

The raw materials requiring oxidation are introduced into an oxidation tower/reactor, and then ozone is bubbled through them for oxidation—a typical gas-liquid reaction. Ozone concentration, mixing method, mass-transfer efficiency, solvent selection, and reaction temperature control are all critical factors influencing the ozone oxidation reaction and ensuring its safety. An appropriate solvent keeps the reaction mixture at a low viscosity, facilitating uniform gas distribution and efficient ozone absorption.

Carbon black oxidation
Carbon black oxidation

Ozone oxidation can alter the surface properties of carbon black, increasing its volatile content and flowability.
Oxidation methods are categorized into gas-phase and liquid-phase processes. The gas-phase method primarily employs oxidizing gases, while the liquid-phase method mainly uses solutions such as nitric acid and ozonated water. Ozone-based oxidation serves as a substitute for nitric acid oxidation, yielding superior product quality and reducing acid-induced environmental pollution.
 

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