It is flexible in operation, easy to adapt to different operating conditions and product varieties, and is suitable for production of small batches, multiple varieties and long reaction times. The disadvantage of the batch kettle is that it requires auxiliary operations such as charging and unloading, and the product quality is not easy to stabilize. However, some reaction processes, such as some fermentation reactions and polymerization reactions, have difficulty in achieving continuous production, and batch kettles have hitherto been used.
The batch operation reaction kettle is to add the raw materials to the reaction kettle at a certain ratio once, and after the reaction reaches a certain requirement, the materials are discharged at one time. The reaction kettle was continuously operated while continuously feeding the raw materials, and the reaction product was continuously discharged. When the operation reaches a steady state, the state parameters such as composition and temperature of the material at any position in the reaction kettle do not change with time. A semi-continuous operation reaction kettle, also referred to as a semi-batch operation reaction kettle, is interposed between the two, typically by adding one reactant at a time and then continuously adding another reactant. After the reaction reaches a certain level, stop the operation and discharge the material.
The advantage of the batch reaction kettle is that the equipment is simple, and the same equipment can be used to produce a variety of products, especially suitable for small batch and multi-species production in industrial sectors such as medicine and dyes. In addition, there is no backmixing of materials in the batch reaction kettle, which is advantageous for most reactions. The disadvantage is that it requires auxiliary processes such as loading and unloading, cleaning, etc., and the product quality is not stable.https://www.syhgzben.com/
