The paper studied the influence of a catalyst, comparing it with its traditional counterparts, in the process of obtaining a polyethylene terephthalate (PET)-based alkyd resin from post-consumer beverage bottles and how it consumes raw materials and generates waste. The resin was obtained in two phases: (1) glycerol and soybean oil alcoholysis reaction, a renewable material, for polyalcohol production, and (2) polyalcohol and polyacid esterification reaction to obtain the alkyd resin (reaction via solvent). A lithium octoate catalyst (OctLi) was used, not traditional in the alcoholysis reaction, and a fraction of the polyacid replaced by post-consumer PET at a proportion of up to 24% by weight in the esterification reaction. The OctLi catalyst caused a reaction in 30 min, compared to zinc acetate (120 min) and lithium hydroxide (LiOH, 60 min). Using post-consumer PET in obtaining the alkyd resin also decreased the esterification reaction time by 22% (8% PET), 67% (16% PET) and 72% (24% PET), compared to esterification without PET. The reaction time, considering alcoholysis with OctLi and partial esterification with PET (with 24% PET), was 180 min. Adding alcoholysis time with the LiOH catalyst and esterification without PET raises the reaction time to 600 min. Process water formed during the esterification stage declined by 15% (8% PET), 50% (16% PET) and 77% (24% PET), compared to the reaction without PET. The shorter reaction time resulted in less equipment use and consequent lower energy consumption. Another result was that the alkyd resin obtained with 8% PET was adequate for paint formulations.

该论文研究了催化剂在从消费后饮料瓶中获取聚对苯二甲酸乙二醇酯 (PET) 基醇酸树脂的过程中的影响，并将其与传统催化剂进行了比较，以及它如何消耗原材料和产生废物。该树脂分两个阶段获得：(1) 用于生产多元醇的可再生材料甘油和大豆油醇解反应，以及(2) 多元醇和多元酸酯化反应得到醇酸树脂（通过溶剂反应）。使用辛酸锂催化剂 (OctLi)，这在醇解反应中不是传统的，并且在酯化反应中，一部分多元酸被消费后 PET 取代，比例高达 24%（重量）。与乙酸锌（120 分钟）和氢氧化锂（LiOH，60 分钟）相比，OctLi 催化剂在 30 分钟内引起反应。与不含 PET 的酯化反应相比，使用消费后 PET 获得醇酸树脂还可以将酯化反应时间减少 22%（8% PET）、67%（16% PET）和 72%（24% PET）。考虑到用 OctLi 进行醇解和用 PET（含 24% PET）进行部分酯化，反应时间为 180 分钟。增加使用 LiOH 催化剂的醇解时间和不使用 PET 的酯化反应将反应时​​间提高到 600 分钟。与没有 PET 的反应相比，酯化阶段形成的工艺用水减少了 15%（8% PET）、50%（16% PET）和 77%（24% PET）。更短的反应时间导致更少的设备使用和随之而来的更低的能源消耗。另一个结果是使用 8% PET 获得的醇酸树脂足以用于涂料配方。