Ion Exchange Resin Column Design

Based on the experiment results and calculation the ion exchange is design as follows.

Ion exchange resin column design. The design of the vessels should give a maximum resin bed depth while limiting the pressure drop across the resin bed to 1 bar. Design procedures the breakthrough curves for an ion exchange column and an adsorption column are similar. Goro nickel cobalt project in new. Column size most industrial ion exchange columns have a diameter between 0 5 and 3 2 m.

The contacting techniques are almost identical. Basic column types are shown in another page. Ion exchange process for control of iron in copper electrolytes 1. Rohm and haas ion exchange ion exchange introduction 4 fd sep 2008 to soften water you take a cation exchange resin on which the mobile ion inside the beads is sodium na and you pass the hard water through a column filled with the sodium form resin.

10 days material cost of resin per m3 water produced. Only a few general recommendations to ensure that an ion exchange system is designed economically and to achieve good performance and a simple but detailed example. With the exception of the resin. Ion exchange takes place in one column while the resin in the second column is being regenerated resulting in continuous operation.

Therefore the same procedures used for the design of adsorption columns may be used for ion exchange columns. O the scale up approach o the kinetic approach. The optimum column diameter must be a balance between the resin bed height the ratio of resin height to diameter h d and the linear velocity. Calenergy minerals is using an anionic dowex resin to recover zinc from geothermal brines in a series of ion exchange columns.

The hardness ions ca and mg move into the resin beads and each of these divalent. Because it is lighter the weak acid resin remains on top. 4 each with a capacity of 120m3 h surface loading. For example metal contaminants are.

Ion exchange plant design some basic principles you will not find here a complete plant design manual. How to design an ion exchange resin system. The recovered zinc is eluted with pure water and transferred intermittently to be treated by further refining 2. Usage examples continuous ion exchangers are used when it is imperative that product be continually generated.

The ion exchangers used in this research project were i clinoptilolite a naturally occurring zeolite and ii a resin in h form with functional group sulfonic acid lewatit s2568h. One variation of the standard design uses a layer of weak acid resin on top of strong acid cation resin. A demineralizer system consists of one or more ion exchange resin columns which include a strong acid cation unit and a strong base anion unit. Continuous ion exchangers consist of two columns in parallel.