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Traditional acid binders are divided into inorganic and organic categories, mainly including various basic substances such as soda ash, organic amines, tertiary amines, and pyridine. It is mainly used in certain chemical reactions to combine with the small molecular acidic substances formed as a result of the reaction, thereby shifting the chemical equilibrium in a direction that facilitates the progress of the reaction ； In some chemical reactions, after the reaction is complete, it is used to neutralize any excess organic acid present in the reactants ； Sometimes, they act as catalysts in chemical reactions. Traditional acid scavengers can only be used to neutralize and consume acids in such reactions; they are unable to enable the recovery and reuse of excess acid. These traditional acid scavengers participate in the reactions and become part of the main reaction process, which inevitably leads to the formation of large amounts of by-products. This increases the need for post-processing steps, reduces the yield and production efficiency of the products, and has a significant negative impact on cost control. Additionally, the by-product salts result in an increase in solid waste, posing a risk to environmental pollution. New acid-binding materials can overcome the shortcomings of traditional acid binders, improve production efficiency, enhance product quality, shorten the manufacturing process, reduce production costs, and decrease environmental emissions. By forming a polymeric structural framework, supramolecular systems containing strong anionic groups and hydrophobic groups are created. When the solid-phase acid binder encounters acids in the system, its strong negative charge binds to the strongly positive charges of those acids through weak bonds, thereby controlling the activity of the acidic groups and causing them to become part of the solid-phase system; this results in a heterogeneous system that does not interfere with the reaction process. Once the reaction is complete, it is sufficient to simply carry out centrifugal filtration for recovery, followed by elution using alkali or alcohol, allowing the binder to be reused. 1. Add an acid-binding agent and relevant reactants before the reaction begins. 2. The reaction starts. 3. The pH value is measured. 4. At the end of the reaction, centrifugation is used to separate the product from the acid-binding agent. 5. The acid-binding agent is regenerated. 6. It is ready for use again. In traditional processes, washing is carried out followed by phase separation to recover the ester; after dehydration, a qualified final product is obtained. The acid-containing wastewater needs to be treated in an environmentally friendly manner, and at the same time, large amounts of organic acids are wasted, causing environmental pollution. A. Excess organic acids react with the corresponding alcohols to form esters. B. A solid acid scavenger is added to absorb the excess organic acid; after filtration, the ester is separated from the acid scavenger and the acid, resulting in a qualified finished product. C. The solid-phase acid-binding agent is completely eluted with the corresponding alcohol and reused after regeneration. D. The eluent is an alkyd solution; after determining the acid-to-alkol ratio, the appropriate amount of acid is added. E. The completed acid-alcohol solution is returned to the reaction vessel to proceed to the next step of ester synthesis. F. Complete the recovery and reuse of organic acids. Solid-phase acid binders can be used in an open system, recovered by centrifugation or filtration, regenerated separately, or used in columns or towers for online regeneration and continuous use. Materials + columns = continuous production