Hubei Sanli Fengxiang Technology Blog

Urea-formaldehyde (UF) glue   is a thermosetting resin widely used in the woodworking and construction industries for bonding wood and other materials. The manufacturing process of UF glue involves several steps, from the synthesis of the resin to its formulation into a usable adhesive. Below is an in-depth explanation of the production of urea-formaldehyde glue, a process that combines chemistry, engineering, and precise control to achieve a high-quality adhesive product.   1. Raw Materials: The primary raw materials for  UF glue  are urea and formaldehyde. Urea, a nitrogen-containing compound, is derived from ammonia and carbon dioxide. Formaldehyde, a simple organic compound, is commonly produced by the oxidation of methanol. The purity of these raw materials is crucial to the quality of the final adhesive. Impurities in urea or formaldehyde can lead to variations in the glue's performance and stability.   2. Synthesis of Urea-formaldehyde Resin: The first st...

There are two prevailing processes for sec-butyl acetate (SBA) production , i.e. iso-butanol-acetic acid esterification process and n-butene -- acetic acid addition process. Due to its much lower production cost, new SBA plants usually use the Addition Process, which is the very technology SL TECH  provides. It consists of four units, feedstock purification unit, esterification unit, product separation unit and acetic acid recovery unit. Compared to the Esterification Process, the Addition Process for SBA production has advantages such as shorter process flow, less equipment and lower production cost (50-60% of Esterification Process); lower energy consumption (only 5% of Esterification Process); easy operation, lower maintenance cost and lower operation cost; harmless and poisonless solid acid catalyst, less pollution, less equipment corrosion. 1. Fixed Bed tubular Reactor To ensure the separation effect in the reactor, a disc distributor is arranged at the feedstock inlet; to str...