The issue of measurement error for available sulfur
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I would like to ask: What are the main sources of error in the determination of available sulfur?
A stepwise temperature increase method is employed: the sample is held at 500–650 degrees for 7 minutes, at 650–850 degrees for 3 minutes, and at 850 degrees for 5 minutes. This can be achieved using a PID-controlled temperature regulator (i.e., an intelligent control device), by pre-programming the temperature increase sequence. This post was last edited by qqliu20066 on 2009-4-16 11:55.]
The main error is that the test requires a maximum temperature of 850 degrees, whereas in actual sulfide ores, a large amount of sulfur burns and escapes at temperatures between 520 and 650 degrees; burning at 850 degrees alone does not yield good results.
Thank you to friend qqliu20066 from above.
In our case, the effective sulfur is generally produced through a reaction at 850 degrees Celsius; the temperature control equipment is also set around 850 degrees Celsius. However, there is a problem of significant errors