The 2021 price surge in n-butyl acetate was primarily feedstock-driven. Glacial acetic acid prices soared as downstream PTA capacity expanded by 16.5 million tons in 2021, tightening supply. Meanwhile, n-butanol prices jumped from around 7,000 yuan/ton in 2019-2020 to over 16,000 yuan/ton by mid-2021, a 2.2-fold increase, despite propylene feedstock rising only 20%. This gap suggests possible speculative activity. For formulators, blending alternatives offers cost relief: a 7:3 weight ratio of sec-butyl acetate to PMA cuts costs about 17%, while an 8:2 propyl acetate/PMA blend saves roughly 21%. These substitutions help manage volatility without major performance trade-offs.
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