Optimized Liquid-Phase Oxidation
a technology of aromatic compound and liquid phase, which is applied in the preparation of carboxylic compounds, organic chemistry, chemistry apparatus and processes, etc., can solve the problems of unfavorable cstrs, unfavorable cstrs, and high capital costs of cstrs
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[0283] In this Example, certain properties of the novel CTA particles (illustrated in FIGS. 32A and 32B) and the comparative CTA (shown in FIGS. 33A and 33B) were evaluated. In particular, the CTA particles were tested for particle size, BET surface area, and dissolution rate. Testing of the CTA particles was performed in accordance with the test descriptions provided above in the Detailed Description section of this document.
[0284] The novel CTA particles were produced by partial oxidation of commercial-purity para-xylene using recycled filtrate in a bubble column reactor operated according to many embodiments of the current invention, including solvent comprising acetic acid and water, catalyst components comprising cobalt, manganese and bromine, temperature near 160° C. at the mid-elevation of the reaction medium, preferred gradients of the gas phase composition, liquid phase composition, and temperature of the reaction medium, preferred overall STR, and preferred gradients in o...
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