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The adsorption is mainly based on the principle of van der Waals force or hydrogen bonding to produce adsorption.

Adsorption separation is an exothermic process and macroporous adsorption resins can be regenerated by heating. It can also be treated with a regenerant.

The full name of the catalytic resin is an ion exchange resin type catalyst. The H-type cation exchange resin can be used as an acid catalyst, and the anion exchange resin can provide a hydroxide, so it can be used as a basic catalyst. Currently, acidic solid catalysts have developed rapidly.

The resin catalyst has been washed with pure water before leaving the factory, and can be washed without water after being charged into the reactor. Otherwise it must be washed with demineralized water.

Chelating resin is a special ion exchange resin that can form a cross-linking functional polymer with a multi-coordination complex with metal ions. Among the functional groups, there are atoms such as O, N, S, P, and As which have unbonded lone pairs of electrons.

The heteroatoms on the chelating resin can form a coordination bond with a metal ion by a pair of lone pairs of electrons, forming a stable structure similar to a small molecule chelate. The polymer with chelation function needs to meet the requirements of two aspects, firstly, it needs to contain a coordination group, and secondly, the coordination group is arranged on the polymer backbone to ensure the space configuration requirements of the chelation process.

A chelating resin is a cross-linking functional polymer material capable of forming a multi-coordination complex with a metal ion.

Boron, Fluorine ,Magnesium, Calcium, Vanadium ,Chromium, Manganese , Iron, Cobalt.