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Zhejiang Hualian Sanshin Petrochemical Co., Ltd.’s project with an annual production capacity of 450,000 tons of PTA utilizes patented technology from the American company Eastman. This production method is the most advanced technologically, the most economical, and the most mature in terms of process. Process characteristics: (1) Unique design of the oxidation reactor; (2) Simplified production process; (3) Mild oxidation conditions; (4) Efficient utilization of energy; (5) No use of precious metal catalysts. Production process and flow: In this process, PTA is produced using PX as raw material, acetic acid (HAC) as solvent, cobalt acetate and manganese acetate as catalysts, and hydrobromic acid as a promoter. Air is introduced into the reactor for liquid-phase oxidation to produce crude terephthalic acid (CTA). CTA is then processed in a post-oxidation unit to further oxidize 4-CBA into PTA. The crude TA product is refined through dissolution and crystallization, which improves the yield of the product. Finally, the product is obtained through crystallization, separation, and drying.
Nothing? No points will be deducted!
No new content was found after the score increase; it is suggested that the reviewer be penalized! ! !
Isn’t it good? It’s quite fine – thorough learning and a deep understanding
The most advanced, most cost-effective, and most mature in terms of technology.............Can we avoid using the word “most” so often? ?
For most people, we’re here to learn*; this is useless
Don’t use “the best”, :( Have you compared other advanced technical approaches and methods? Those of BP, the Japanese ones – are there any other process routes you know of? Do not use the word “most”. Please talk in more detail.
“Don’t misuse the word “most.” Leaving aside the fact that it’s still in the early stages, the fact that the technology is already mature is problematic – after all, this is only the third system of its kind in the world, and there are many areas that need improvement.
Delete the post, delete it! ! ! Banzhu deletes the post! ! ! They make such big claims, always saying they’re the best, and they even lie by giving fake points – moderator, please delete this post! !
Disdain, a technology exchange forum – if you don’t want to engage in exchanges, then don’t post.