For dry-acetylene production and the calcium carbide slag generated, how can calcium hydroxide be separated?
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For dry-acetylene production and the calcium carbide slag generated, how can calcium hydroxide be separated? I searched online and saw that many people are very familiar with dry-acetylene processes, and they each have their own unique insights into the problems and challenges associated with them; I really admire that. I have a question for all of you experts: the calcium carbide slag generated during the dry-process acetylene production is transported from sealed containers to cement plants or brick factories. Doing so is somewhat wasteful, as the remaining calcium carbide slag contains large amounts of calcium hydroxide, which is alkaline in nature and can be used to absorb carbon dioxide. After all, isn’t there a push these days for a low-carbon lifestyle? So, this is where my question arises: how can calcium hydroxide be separated from the calcium carbide slag? After all, this slag also contains a certain amount of iron slag, and its use in the mud decarburization and desulfurization process can cause significant damage to the machinery. I hope the experts can offer some suggestions and help me out! I sincerely thank you···· If you have any good suggestions or methods, please leave a message or send me an email at sdp009@163.com. Thank you in advance, and I look forward to hearing from you.
For calcium carbide slag produced by dry methods, appropriate separation equipment such as cyclones or gravity sedimentation can be considered
It’s not necessary to separate them out; some companies use them in their own power plants to carry out desulfurization using calcium carbide slag. Calcium hydroxide further enhances the desulfurization process. Hmm, using waste to treat other waste results in more significant economic benefits.
Reply to 2# pvc98: Yeah, that’s right. Tornado, gravitational settling – this is one direction. However, if cost is taken into account, wouldn’t the cost of doing this be very high? The residue that remains is usually in dust form; it should be blown away using a cyclone. Since the particles of iron left behind are also relatively small, they will float around with the dust. When they settle, another fan is needed to blow them horizontally?
Reply to 3# windsky1000: If they aren’t separated, the ferrosilicon inside will affect the quality of the gypsum···
Add air disturbances to see if it can turn into calcium carbonate; I guess there might be ferrosilicon inside, and ferrosilicon needs to be separated through washing……
From a different perspective, one can simply use an iron remover to eliminate the iron impurities in calcium carbide slag
Reply to 7# ybcity: What is an iron remover? What is the working principle?
Reply to 8# sdp009: You can find out by searching online
Pure ferrosilicon degreasers cannot remove it!
Could it be the legendary giant magnet?