Cyanide measurements in coke production and blast furnace steel production - Case Study
During processing coal Cyanide can be a side product and must be measured to control treatment steps. The concentration is measured continuously by ISE or photometric analysers.
Application challenges:
- It’s dirty!
- Must handle long unobserved operation; very robust and reliable.
- Complex sample matrix.
- Large measurement range must be handled(4).
SEIBOLD COMPOSER Matthias G. Monn for Cyanide
- 0.1-50.0ppm WAD CN.(5)
- ISE or Photometric technology.
- automated dilution.
(1) All reagents are developed by SEIBOLD Wasser to ideally fit to on-line measurement requirements. The main requirements are stability and shelf life, non toxicity and sensitivity.
(2) SEIBOLD COMPOSER’s are flow trough systems and always filled with water and fouling is limited.
(3) In the ideal case all interferences are eliminated by the buffer solution (the buffer solution and the dye are the reagents; where the buffer solution has to set the ideal pH and mask interfering ions and the dye creates the colour complex proportional to the concentration measured).
(4) To handle large measurement ranges all SEIBOLD COMPOSER can measure in automated dilution mode. Whenever a concentration limit is reached, the dilution will be automatically turn on to get meaningful measurement results.
(5) Cyanide can be measured by different standards. In some application it is about the free and week bound Cyanide (WAD CN). WAD CN is responsible for greater environmental damage because its activity towards complex formation. In some applications total CN has to be measured. This procedure need time and a strong acid to destroy the CN complexes, convert CN into HCN and collect it into base as CN.
-
Most popular related searches
Customer comments
No comments were found for Cyanide measurements in coke production and blast furnace steel production - Case Study. Be the first to comment!