Products aftertreatment followed at a warm temperature was prepared. pH is the key factor for raising the yield of phenylacetic acid.

• 氢氧化钙作中和剂使用，要求羰化产物后处理的温度提高，以保证苯乙酸的产率；碱的用量和浓度是影响苯乙酸产率的重要因素。