Sulfur dioxide concentration of residual gases in the production of sulfuric acid

• 1. 硫酸生产中转化器出口二氧化硫浓度测定装置 [P] . 中国专利： CN203572812U . 2014.04.30
• 2. 用于控制在换气过程之后在内燃机的气缸中残留的残余气体质量和/或在换气过程期间冲入内燃机的排气歧管中的冲刷空气质量的方法和装置 [P] . 中国专利： CN109819665A . 2019-05-28
• 3. Method and apparatus for independent regulation of the minimum of the sum of the concentrations of hydrogen sulfide and sulfur dioxide is used in the residual gases of units for sulfur recovery [P] . 德国专利： DE1253684B . 1967-11-09

  机译： 在硫磺回收装置的残余气体中使用独立调节硫化氢和二氧化硫浓度之和的最小值的方法和设备

• 4. Method and device for the recovery of the sulfur dioxide is a very low concentrations in the residual gases. [P] . 法国专利： FR95415E . 1970-11-06

  机译： 回收二氧化硫的方法和装置是残留气体中的极低浓度。

• 5. Process for production of sulfur dioxide containing gases from waste products containing ammonium salts of sulfur acids [P] . 美国专利： US3359069A . 1967-12-19

  机译： 从含硫酸铵盐的废品中生产含二氧化硫气体的方法

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