A batch reactor is a type of vessel used in chemical processes where reactants are added, mixed, and allowed to react for a specific period. Unlike continuous reactors, batch reactors operate in discrete steps, meaning that all materials are loaded at once, and the reaction occurs without any additional input until the process is complete. This setup is ideal for producing small quantities of chemicals or for reactions that require precise control over conditions. In a batch reactor, the reaction conditions such as temperature, pressure, and time can be easily adjusted, making it suitable for experiments and production of specialty chemicals. Common applications include the production of pharmaceuticals, food products, and polymers. The design of a batch reactor can vary, but it typically includes features like stirring mechanisms and temperature control systems to ensure uniform mixing and optimal reaction conditions.