Resin storage and transportation

1. In a long period of time deposited of ion exchange resins or in a long period of time deposited of stop using the equipment.Strong type resin(strong acidity and strong basicity) should change to salt,weak type resin(weak acidity and weakbasicity) may change to it’s corresponding hydrogen type or free amine also may change to salt in order to keep tranquilization of resin’s capability. Afterward keep the resin at undefiled water.If need for drainage in stop using the equipment should keep the equipment airproof in order to prevent from dissipate water.
2. It has definite warer in ion exchange resin that should keep wetness in deposited and transportation prevent dehydration.Resin should be deposited in roon or envelop,The temperature of circumstance from 5℃ to 40℃ is towardly. The pockety resin should avoid solarization immediate, away from boiler,warm implement etc heatedly installation prevent dehydration.

If you found the resin has dehydrated,please don’t put the resin in water immediacy in order to break up the dry-resin because submerged rapid expand.It ought to the degree of dehydration.Put the brine it’s concentration about 10% in resins slowly,keep the resin in brine about some time then dilute the solution with undefiled water.

1. When temperature of circumstance at 0℃ or underside,in order to prevent the resin burst apart owing to water icing inside resin,so we should make out a measure of heat preservationor base the condition of air temperature put the resin in brine it has corresponding concentration prevent icing.If we found resin has been freezed we should let oneself ice-out slowly and don’t clamp down mechanical force in resin.

The connection of concentration of brine and freezing point as follows tables:

1. The resin has been put in exchanger because long-term blocked up.In prevent contaminants of mikrobe(as: protonema, bacteria) for resin .Resin needs complete backwashing before take out of service so that to remove accumulative suspended substance at the volley and attendred refreshing the water periodically.Or hereinafter naturalize cure after complete backwashing:

    Anion resin: Leaching resin bed of the the 10%NaCl+2%NaOH intermixture at twice through the medium of resin bed，every time quiesce drench number hour，then should thereof drain in of the with three times resinite product. if necessary，past the 0.2% hydrogen peroxide（H2O2）solution at restart front with two times resinite product.
Cation resin: Fill greet 0.5% formol in cation exchanger cum piping inside eight in cation exchanger cum piping inside approve. Usableness saline solution soak too. With 0.2% hydrogen peroxide or 0.5% formol leaching before equipment reboot.
The pretreatment of resins
On the industrial product of ion exchange resin maintain a spot of organic oligomer cum some inorganic impurity frequently .In early use it is able to dissolve and release gradually impact water quality or product quality.wherefore，new resin needs proceed pretreatment before in use, concretion means as follows：

1. Since resin enclose exchanger, backwashing resin bed with uncontaminated water, spread rate for 50-70%, till water in focus, odorlessness, without comminution resin up to.
2. The 4-5%HCl solution，with 2m /h velocity of flow through the medium of resin bed of the with about two times resin’s volume. whole pass over，steep four-eight hour，drain acid liquor， flush solstice effluent water submit neutrality with uncontaminated water ，flush out stream velocity for 10- 20m/h..
3. The 2-5% NaOH solution with about two times resin’s volume.，both that of push-in surface enter HCl solution route to pass over and soak. drain lye， flush solstice effluent water submit neutrality with uncontaminated water，the rate of flush out ditto.

If be able to repeat proceed two-three degree acid and base solution，then effect still good.
The resin after by pretreatment, in the first time placed in service should to increase regeneration level to ensure resin obtain plenary regeneration.