Inorganic Chemicals Industry ›› 2025, Vol. 57 ›› Issue (1): 36-41.doi: 10.19964/j.issn.1006-4990.2024-0116

• Reviews and Special Topics • Previous Articles     Next Articles

Research progress of quality improvement plans for industrial hydrogen peroxide

QI Guoqing(), LI Tong   

  1. Shandong Xinlong Technology Co.,Ltd.,Shouguang 262700,China
  • Received:2024-03-04 Online:2025-01-10 Published:2025-01-24

Abstract:

In the industrial grade hydrogen peroxide production process,the iron ion content was reduced through reasonable selection of pipeline equipment materials,high-quality passivation,and the use of precision filtration.The total organic carbon TOC content was reduce by selecting efficient solvents,appropriately reducing the temperature of regeneration and reaction,stripping or purification.The content of phosphate ions was reduced by improving the cleanliness of the system,reducing the amount of stable phosphoric acid used and using stabilizers with no or low phosphorus.By controlling temperature,pH,and impurities,product stability could be improved,and stabilizer types could be selected based on downstream products.The pH of hydrogen peroxide was controlled to not exceed 6,and it was recommended to maintain it at 2~3 to increase safety and improve quality.The sensitive elements of different downstream products such as caprolactam and tetrabromobisphenol A was controlled to meet production needs.Through the above control measures,industrial grade hydrogen peroxide could meet downstream chemical manufacturing quality standards,without the need for new purification and purification devices,reducing costs and increasing safety.

Key words: hydrogen peroxide, iron ions, TOC, pH, quality improvement

CLC Number: