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Having worked with resins for many years, encountering them for the first time gave me the impression that they were something magical. But I encountered many problems in my subsequent work; in fact, it was through these numerous problems that I grew. I’d like to share the resin problems I’ve encountered over the past few years. 1. Resin is not a panacea. If a customer calls me again and says that your resin can remove the salts from the product during the reproduction process, right? I said, “Yes, which product’s salt do you want to remove?” The customer said, “I work in **, and certain salts are generated during the reaction process.” I said, “Could you tell me roughly what the salt content is?” The customer said, “Around 30%.” Then we can only talk about feelings! Haha! Resins are only suitable for purification; in my opinion, under strong environmental pressures, those with a salt content of less than 1‰ are appropriate for use with resins (ion-exchange resins). Perform in-depth processing. 2. Resin is not durable. All resins have a certain shelf life. Many resins are disposable resins; for example, many resins used in the extraction of metals are disposable. Such as the extraction of nuclear fuel uranium. Conventional water treatment resins (ion-exchange resins) also generally last around 1 year. However, many manufacturers choose to use old resin for pre-treatment, while new resin ensures product quality. In fact, in many cases we recommend increasing the replacement area (after all, we are in the business of selling resins), as this helps to ensure product quality. It can also reduce regeneration costs. I’ve seen some manufacturers run their new resins for 18 hours; when their resins have only been in use for about ten hours, they don’t think about replacing them. Instead, look for good methods of regeneration. I personally think it was a detour. Another type is macroporous adsorption resin, which has a relatively long decay period. Typically, resin manufacturers provide a two-year warranty. In my opinion, the bottleneck is the market breakthrough for resins. Exploring the market in actual work has become the main obstacle to preventing large-pore adsorption. Many markets have seen breakthroughs, and their current performance is very good. A true win-win outcome has been achieved. 3. Resin regeneration. Sometimes, the regeneration of resins is more troublesome than selecting the right type, and it requires analysis based on specific circumstances. Then summarize the experience. Personally, I feel that those with experience can find a way to regenerate more quickly than those without experience. (For large-scale industrial production) 4. Resin storage. A customer asked whether the resin will become ineffective if it isn’t left for a while. To be precise, compression, frost cracking, and water loss should not occur. None of those that cause damage to the resin will become ineffective. Fully handwritten, busy! ! ! ! ! ! ! ! ! Follow-up update! ! ! ! ! ! ! ! !