Acid washing and alkali removal from benzene solution mainly removes organic and inorganic alkalis in the solution and purifies benzene for reuse. The method used is solvent extraction, the equipment uses a centrifugal extractor, and the process is two-stage countercurrent acid washing and alkali removal, and two-stage countercurrent water washing and desalination.

When the centrifugal extractor is in operation, the process flow is mainly customized according to the specific liquid system and customer production needs. The scope of application is mainly alkaline organic systems that are immiscible with water (taking benzene solution as an example, the equipment material is 316L stainless steel).

Process flow of acid washing and alkali removal from benzene solution

  1. The process is not limited to four-stage centrifugal separation, and the number of countercurrent extraction stages can be increased according to actual conditions.
  2. The process is suitable for separating and recovering alkaline organic mixtures that are immiscible with water, such as benzene, xylene, etc.
  3. Taking the CWL250-M equipment as an example, the total volume of residual liquid in the chamber after the equipment stops running is 15L, and there is little residual liquid in the equipment.
  4. The process relies on centrifugal force for separation (several hundred to thousands of times the gravity under the same conditions), and the separation efficiency is high.
  5. The process equipment occupies a small area and has low power consumption, which can realize the continuous production of benzene alkali removal and recovery.
  6. Each equipment is equipped with an electrostatic lead-out device made of zirconium.

Equipment for acid washing and alkali removal from benzene solution

Adopted CWL-M centrifugal extractor. This equipment is a new type of liquid-liquid extraction and separation equipment developed and produced by Zhengzhou Tiei Extraction Company. It can be used for acid washing and alkali removal from benzene solution. The centrifugal extractor uses a motor to drive the drum to rotate at high speed. Two liquids with different densities and immiscible with each other complete mixed mass transfer under the shear force generated by the rotation of the drum or blades, and are quickly separated under the centrifugal force generated by the high-speed rotation of the drum.

Performance advantages of CWL-M centrifugal extractor

  1. The centrifugal extractor occupies a small area and has a large processing capacity.
  2. The centrifugal extractor is a closed circulation system with a good operating environment.
  3. Low power consumption, simple operation and maintenance.
  4. The centrifugal extractor has good mixing and separation effects, which can greatly reduce the amount of acid and washing water, and can easily realize the reuse of washing water.
  5. The centrifugal extractor can realize continuous production, with high precision and good reliability, ensuring the safety of operators and equipment.
  6. Reasonable supporting system to minimize investment, operation and management costs.

For more detailed product information and process flow, welcome contact us.
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