INDION ion exchange resins used for conventional water treatment applications such as softening, deionisation and dealkalisation are manufactured in an automated, ISO 9001 & 14001 certified facility.
Lower rinse volumes, high capacity, superior life pattern and proven track record make the INDION resins a preferred choice.
Ion Exchange manufactures a variety of high purity ion exchange resins designed for the purification of potable water. These resins have very low organic leachables. The applications include softening, disinfection, removal of nitrate, arsenic, fluoride and iron.
INDION nuclear grade resins have been developed after intensive research and have exceptionally high bead strength, low levels of metal, chloride and organic impurities. These resins are used for a number of applications in the nuclear power industry.
Ion Exchange offers various grades of chelating resins, strong and weak acid cation exchange resins for removing or recovering metal ions. The chelating resins having aminophosphonic, iminodiacetate, thiol and thiouronium functional groups are used for removing specific ions from a mixture of ions.
INDION resins are used for deashing and colour removal in gelatine, liquid glucose, sorbitol, dextrose and malto dextrine manufacture. INDION resins find application in the removal of alkalinity from the wash water in the beverage industry. The other application include stevia purification and debittering of fruit juices. Inversion of sucrose into glucose and fructose using INDION resins helps in reducing sugar consumption in the beverage industry for low calorie beverages.
Ion Exchange offers INDION resins for decolourisation of sugar melt. The technology has synergistic effect with phosflotation and carbonation. It operates by passing the pretreated sugar melt through a combination of speciality ion exchange resin columns. Inversion of sucrose into glucose and fructose using INDION resins helps in reducing sugar consumption in the beverage industry for low calorie beverages.
INDION resins are used in various process applications such as deashing, colour removal, deacidification, decalcification of secondary brine etc. INDION resins used in these applications have superior thermal and oxidative stability, excellent operating capacity and good bead strength.
INDION Resins are an ideal solution for bio-diesel manufacturing and purification. It removes free fatty acid (0.5-1.0%). It also removes soaps, moisture and cationic impurities from raw bio-diesel ,when KOH is used as catalyst. It is best suited for esterification of free fatty acids present in feed stock – waste cooking oil, jatropha oil, palm oil, sunflower oil, corn oil, palm fatty acid distillate, etc.
Ion Exchange is the first company in India to establish and promote use of ion exchange resins as Pharmaceutical Excipients. We are accredited with G.M.P Certificate by the Food & Drugs Control Administration (FDA), Gujarat for manufacturing bulk drugs. INDION pharmaceutical grade resins are manufactured in state-of-the-art ISO 9001 & 14001 certified facility and are widely used in India and other countries.
INDION Resins are used as active pharmaceutical ingredient for tablet disintegration, improving palatability of ionizable drugs as taste masking agents, for treatment of hypercholesterolemia & hyperkalaiemia, sustained release of drug, vitamin B12 stabilisation and many more.
All the major strong acid cation exchange resins involved in industrial water treatment applications have a chemical matrix consisting of styrene and divinylbenzene.
The functional groups are sulfonic acid radicals. The resins vary mainly in divinylbenzene content or matrix structure (gel/isoporous/macroporous).
Generally, in water softening, a strong acid cation exchange resin with 6 - 8% divinylbenzene crosslinking is used. 220 Na and 225 Na are examples of this resin. For demineralisation the main resin that is used is the cation resin in hydrogen form, for example 225 H.
INDION 2250 H, INDION 2250 Na, INDION 225 H, INDION 525 H, INDION 225 Na, INDION 225 Na F, INDION 222 Na, INDION 222 Na F, INDION 222 Na BL, INDION 303, INDION 770, INDION 220 Na, INDION 225 H (MB), INDION 525 Na
In industrial water treatment applications, weak acid cation exchange resin is used primarily where there is a high degree of hardness and a high degree of alkalinity.
This resin has the capacity of exchanging all cations associated with alkalinity to a much greater degree than strong acid cation exchange resins. A weak acid cation exchange resin consists of polyacyrlic acid divinylbenzene matrix with carboxylic functionality and gel structure.
The major advantage of this resin is that it can be regenerated with stoichiometric amounts of regenerant, and is therefore, much more efficient. INDION 236 is an example of this resin.
Strong base anion exchange resins can be divided into two categories called Type I and Type II. The Type I resin has the highest overall basicity, and, therefore, gives best effluent quality. The Type II resin also removes anionic constitutents, but has as lower basicity, and therefore, requires less caustic during the regeneration cycle. In general, a Type II strong base anion exchange resin is recommended where silica effluent quality is not as critical, and also where a relatively high chloride and/ or sulphate content prevail in the raw water.
INDION FFIP is an example of strong base Type I and INDION NIP is an example of strong base Type II anion resin.
For applications where higher physical strength is required, macroporous resins are also available e.g. 810. All strong base anion exchange resins continuously undergo hydrolysis - a process that converts the strong base groups present in the resin into weak base groups.
The net result is a gradual loss of capacity to remove weak acids like carbon dioxide and silica. Type II resins undergo hydrolysis at a faster rate as compared to Type I resins. Type I resins are therefore preferred where low residuals of silica are required in treated water.
In the field of deionisation, weak base anion exchange resin is used primarily to remove strong acids such as hydrochloric and sulphuric acid. Unlike strong base anion exchange resin, weak base resin does not have the capability to remove carbon dioxide and silica; however it has a much higher capacity for the removal of chlorides and sulphates. The resin can be of gel or macroporous structure.
For treatment of water which does not present organic fouling problems, the gel type weak base resin is used. For treatment of water containing organic contaminants (humic and fulvic acids), macroporous weak base anion resins are preferred. 850 is an example of macroporous weak base anion resin.
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