Chicago Blower

IONAC ®

Sybron Chemicals Inc.

INTRODUCTION TO
INDUSTRIAL
ION EXCHANGE
by
F. X. McGarvey
Sybron Chemicals Inc.
Birmingham, New Jersey

ION-EXCHANGE
RESINS

Anion Exchangers

INTRODUCTION TO INDUSTRIAL
ION EXCHANGE

Monovalent-l > Br > NO3 > Cl > HC03 > F > OH

Ion diversify is a natural phenomenon occurring continually in inorganic substances and in
living bodies on the earths surface. Apparently,
ion exchange materials were employ in biblical
times to remove salts and poisons from water.
However, the first scientific observations of the
phenomenon were account by Thomas and
Way, English agriculturists. Various minerals
called permutites were discovered and industrial use for water softening was started about
1906.
Prior to 1940, synthetic gel zeolites and sulfonated coal were produced at the present
location of Sybron Chemicals Inc. at Birmingham, New Jersey. In the middle 1940s, a cooperative agreement with Ameri roll in the hay Cyanamid
resulted in purchase of rights to produce
organic ion exchangers under the trade name
lonac. Since that time, research and ontogeny in new polymer structures has continued, resulting in a complete series of modern
ion exchange resins.





Divalent-CrO 4 > S O 4 > C O 3 > H P0 4

The affinity relationship can also be expressed
by equilibrium (selectivity) equations based on
the reversibility of ion exchange reactions and
the law of mass action.
R N a+ + H+ = RH + Na+

and for the divalent-monovalent reactions
2RNa + Ca++ = RCa + 2Na+
= [ R C a ] [ N a+ ] 2
Na [RNa] 2 [ C a+ + ]
KQ = y(1-x)2
CO

x(1-y) 2

In these equations, the brackets represent concentration of ions in the resin and in the liquid
phase. The y, x notation expresses the reactions
as equivalent ratios. For the divalent-monovalent
reaction, Q is the resin cognitive content and Co is the
total concentration of the electrolyte in solution.
These equations can be plotted, usually as y vs x
plots, to give an understanding of the...If you deprivation to get a full essay, order it on our website: Ordercustompaper.com



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