How to handle waste refined kaolin
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Most units in the lubricant oil industry use clay purification; I would like to ask how previous refineries dealt with waste clay It contains a certain amount of wax oil!
Previously, there were specialized manufacturers responsible for recycling it, mainly to extract oils from the clay. Since lubricant production has not been carried out for many years, it is now unclear as to how to recycle the waste clay.
Okay, thank you! I just checked a patent – it’s possible to recover 70–90% of the oil
Indeed, it’s bad for the environment.
I also hope to set up a facility for recycling waste kaolin, haha
This post was last edited by Zhongyuanren on 2009-8-2 at 15:08. Some oil can be recovered from waste kaolin through steam treatment, allowing it to be regenerated; subsequently, it is decided whether to dispose of it or reuse it based on the properties of the regenerated kaolin.
For solvent leaching, a certain amount is necessary in order to be economically viable
First, the oils in the spent bentonite are extracted using a solvent; thereafter, the bentonite after oil extraction is roasted, acidified, and dried for regeneration.
I remember that in a refinery back then, there was a dewaxing unit next to the furfural clay unit, as well as units for lubricant and wax processing; however, I’m not clear about the process flow
Yes, it is a form of pollution for the environment and a waste in terms of production.
Currently, the most cost-effective method for recovering oil from soil is boiling combined with chemical recovery processes; pressing methods are the simplest, but it is said to be the least efficient. It’s a pity that I can only achieve decent results in the laboratory at the moment; the batches produced recently have not been stable. Are there any experts here who are familiar with this kind of homegrown method that also involves technical aspects? I know that most people here have formal training, so probably few have studied such homegrown methods.