Regarding the hydrochloric acid decolorization method
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I would like to ask everyone: apart from the resin adsorption method, are there any other ways to remove yellowing and discoloration in hydrochloric acid? Thank you. Are there any companies that specialize in this type of treatment?
What causes the yellow color? Is it due to the manufacturing process, or is it caused by various other forms of contamination? It’s better to control it at the source.
Yellowing of hydrochloric acid is usually due to the presence of iron; it is best to control this at the source if possible
When it comes to Huang’s concerns, it’s usually about iron ions, which need to be removed at the source. For example, use soft water (deionized water) for watering, replace pipes with stainless steel. Why make it colorless? It won’t fetch a higher price, and in some cases, it might even cost extra money
Why is stainless steel used for hydrochloric acid pipelines? Could you tell me the reason?
How can stainless steel pipes be made? Consider PVC at normal temperatures, and fluorinated lining at high temperatures. Additionally, apart from decolorization and resin removal, is activated carbon worth considering?
I mean the pipes for absorbing water are made of stainless steel
There are certainly ways, but it will cost money.
It’s ferrous hydrochloride; the main component is iron. Currently, resin adsorption is commonly used. May I ask which company offers it?