Where can calcium fluoride with a 60% content be used? Or can it replace fluorite? What are the requirements for impurities?
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There is a large amount of 60% calcium fluoride available – can it replace natural fluorite? If available, what are the requirements for impurities?
Does no one know? I have 10,000 tons of this calcium fluoride!
Your calcium fluoride must have been generated as a by-product; I’m not sure what’s in your raw materials, but it’s very likely that it can only be classified as hazardous waste. It can’t be sold.
Natural fluorite typically has a purity of over 97%, which is much higher than that, and the processes and equipment used to produce anhydrous hydrogen fluoride from fluorite are quite mature. They don’t use this type of calcium fluoride; besides, producing anhydrous hydrogen fluoride isn’t profitable at the moment.
Our calcium fluoride simply has a lower fluorine content; its composition is basically the same. Apart from anhydrous hydrogen fluoride, what other products can be produced?
It depends on what other impurities you have Is there a specific analysis report available?
It depends on the composition analysis – is it a by-product? It can be considered for use in the steel industry after granulation, or it can be used directly in the cement industry (although its value is somewhat low), as well as in the ceramics industry, etc. Fluorite has many uses, but ultimately it depends on what other components are present.
I think it’s valuable; at least it can purify calcium fluoride to over 97%. Then, replacing it with fluorite is also possible. At least for now, the production of fluorite will also be limited. It can be put to use
It mainly depends on whether the calcium fluoride in question is a by-product; what other components it contains matters as well. If the hazards are minimal, calcium fluoride can be increased to over 85% for other uses, and it’s not necessary to produce hydrogen fluoride.
Photovoltaic plants and IC chip factories: Most industries in the silicon sector use hydrofluoric acid, or even mixed acids. The best way to deal with waste hydrofluoric acid is to reuse the fluorine resources. My approach involves removing silica from the waste acid – the current removal rate is 99% – and then converting the fluoride ions into compounds. This allows for the full utilization of fluorine resources, in line with policies aimed at resource recycling