The product's fluoride removal cannot achieve the expected goal. Please ask experts for answers.
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For a product I am making now, due to raw material issues, the fluoride ion content in the product was measured at 1.7% after the reaction was completed. After using diatomaceous earth to remove fluoride, there was still 3000PPM. I would like to ask anyone who has similar processing experience to help me find out what method can be used to remove fluoride to reach less than 100PPM. I am waiting online. Thank you very much! ! !
Is it gas phase or liquid phase? Try a silica gel dryer for gas phase.
Thanks for the answer on the second floor. Silica gel adsorption is possible, but it is for relatively low content. My product is liquid. Now I want to use a reaction method to remove fluoride ions to below 3000PPM. It is best to reach 1000PPM, and then choose a suitable adsorption medium for adsorption to remove fluoride ions below 100PPM. This may be feasible. The key now is to choose what kind of medium can be used for reaction, and then what kind of medium can be chosen for adsorption. Please provide some information from Haiyou who has experience in this area. Thanks again! ! !
Thanks for the answer on the fourth floor. I have tried it, but the effect is not ideal. It is difficult to take out the product after treatment. The main reason is that my product is highly volatile and corrosive. Let me talk about the methods I have used, including silica gel adsorption, diatomaceous earth adsorption, calcium carbonate reaction, lime milk reaction, and calcium chloride. The reaction and activated carbon adsorption are not ideal. It can only be removed around 3000PPM and then stops. Now I use diatomaceous earth for adsorption. If there is a better one, please introduce it below. Then I will solve how to remove it from 3000PPM to below 100PPM. Thanks again.
Very interesting, what kind of product is it specifically? Scraps may be turned into treasure.
This is my regular product. What I want is a product containing fluoride. It needs to remove fluoride ions to be useful. So I have a headache now. Please help me see if you have any good suggestions.
I have preliminary researched a plan and share it with you. I used calcium chloride to react to remove fluoride from 7000 to 1000. Then I did a good job of removing fluorine by distillation. I am still doing a small trial on the distillation.
Using alumina particles to adsorb and remove fluorine is very effective, you can try it.
Calcium chloride precipitation can be considered for general pretreatment. Accurate removal depends on resin adsorption. We are the largest manufacturer of special resins in China and have special resins for fluoride removal. If you are interested, please contact us.