Topic: [Discussion] For neutralizing liquid sulfur, is soda ash better or lime?
Thread Content
Today, I suddenly noticed that this thread: “Is it better to use soda ash or lime for neutralizing liquid sulfur?” has been moved to the Soda Ash Discussion Forum. This seems inappropriate. Could the moderator please move it back to the Sulfuric Acid Forum?
I tried, but couldn’t transfer it. It seems that only the moderator or super moderator on the other side can do the transfer
It’s better to add lime instead; it’s cost-effective, and the resulting products can be filtered. :)
This post was last edited by WJM20100528 on July 13, 2012, at 08:57. Adding limestone powder is better; the sulfur residue after filtration is easier to remove compared to when lime is added. It also has better moisture absorption properties, making it easier to add uniformly； Of course, the particle size of the limestone is crucial.
We use soda ash; it works fine. Previously, we used too much lime residue, which was difficult to clean up
Some people have already noticed that there are problems with adding soda ash. How long have you been adding it? Haven’t any problems occurred yet? If the residue isn’t removed during filtration, it will cause problems in subsequent processes.
Our company uses soda ash; we’ve been using it for 2 years now, and no abnormalities have been observed. At one point, we reduced the amount of soda ash added, which led to corrosion of the filter screens in the filter unit.
Adding soda ash won’t cause any abnormalities in the short term; however, over time it will increase the resistance of the catalyst bed. Although adding lime makes the operation more labor-intensive, it enables the timely removal of precipitates in the molten sulfur section, thus preventing ash from entering subsequent processing stages. Generally speaking, it’s better to add lime.