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Chelation
Resins
Systematix
carries a wide variety of ion exchange resin, if you do
not see your product listed here, please contact us for
more information.
Product |
Applicaton |
Description |
Downloads |
S108 |
Boron
Removal |
Purolite
S108 is a macroporous polystyrenic based resin,
with functional groups specially designed for the
selective removal of salts of boron from aqueous
solutions. It is effective for such solutions over
a wide range of pH values, and over a wide range
of boron concentrations. The presence of boron ions
in water supplies to be used for certain chemical
processes, or in water for potable and agriculture/horticulture
use, even in relatively small (ppm) concentrations
can give rise to major problems. Even where concentrations
of other ions are reasonably high, Purolite S108
will reduce boron concentrations by an order of
magnitude. |
Data
Sheet
MSDS
Sheet |
| S910 |
Copper/Heavy
Metal Removal |
Purolite
S910 is an amidoxime chelating resin, designed for
the removal of cations of metals such as copper
and iron from water or other solvent even at relatively
low pH. It can also be used for the recovery of
traces of precious metals from dilute solutions.
It cannot be used for removal of alkaline earth
metals. |
Data
Sheet
MSDS
Sheet |
S920 |
Mercury
Removal |
Purolite
S920 is a macroporous polystyrenic based chelating
resin, with thiouronium groups designed for the
selective removal of mercury.and for the recovery
of precious metals from the industrial effluents.
The mercury, in particular, is strongly bound to
the functional groups to form highly stable complexes,
with high selective affinity compared with those
of other heavy metals. These properties are largely
unaffected by high chloride (or sulphate) content
of the effluent. Effluent solutions which may typically
contain 2-20ppm of mercury can be treated to reduce
the concentration in solution to less than 0.005ppm.
Purolite S920 can load up to 200g of mercury, or
gold, or 60g approx. of platinum or palladium for
each litre of resin, equivalent to 12.5, and 3.75
Ib/ft3 respectively. Purolite S920 is designed for
the removal of low concentrations of soluble mercury
salts from waste streams and for the recovery of
precious metals from rinse waters in the galvanic
and electronic industries. Purolite S920 is also
used in hydrometallurgy for the separation of precious
metals from acid liquors. Mercury and precious metals
are so strongly held, and run lengths are so long
(thousands of hours) that it is not normally considered
economic to regenerate the resin for reuse. Purolite
S920 is more resistant to oxidation than many thiol
based resins and contact with the atmosphere is
not detrimental, however free chlorine and other
strong oxidizing agents may damage the resin and
their removal from solution by filtering through
activated carbon is recommended. |
Data
Sheet
MSDS
Sheet |
| S924 |
Mercury
Removal |
Purolite
S924 is a chelating resin, polystyrene based and
designed for the selective removal of mercury. The
mercury is strongly bound to the functional groups
to form highly stable complexes with high selective
affinity compared with those of other heavy metals.
Even so the high selectivity for metals such as
silver, copper, lead, cadmium, nickel and cobalt,
makes this resin useful in waste treatment and hydrometallurgical
processes. The high selectivity for mercury is largely
unaffected by high chloride or sulphate content
of the effluent. Effluent solutions that may typically
contain 0.01-25ppm of mercury can be treated to
reduce the concentration to significantly less than
5ppb residual mercury. Purolite S924 can load up
to 150 g (16 lb/cu.ft) of mercury per litre of resin.
Purolite S924 is designed for the removal of moderately
low concentrations of soluble mercury salts from
brine streams used to produce caustic soda and chlorine
where mercury cells are used, and may be regenerated
with concentrated hydrochloric acid solutions. In
the process for the manufacture of caustic soda
and chlorine from brine, where all or part of the
production uses mercury cells, the mercury rich
regenerant acid may be neutralized with the sodium
hydroxide to produce a recovered brine solution
that may be recycled to the mercury cell process.
Mercury may be present at very low concentrations
and consequently run lengths are often long (thousands
of hours). It is sometimes not economic to regenerate
the resin for re-use. In such cases Purolite S920
may be preferred because of its higher capacity.
Purolite S924 is prone to oxidation and long-term
contact with the atmosphere is detrimental. It is
recommended that this resin is shipped and stored
under water. Also, free chlorine and other strong
oxidizing agents may damage the resin. Their removal
from solution by filtering through activated carbon
is recommended. |
Data
Sheet
MSDS
Sheet |
S930 |
Copper
Removal |
Purolite
S930 is a macroporous polystyrene based chelating
resin, with iminodiacetic groups designed for the
removal of cations of heavy metals from industrial
effluents. These cations may be separated from high
concentrations of univalent cations (typically sodium)
and also from common divalent cations (such as calcium).
Removal can be achieved both from weakly acidic
and weakly basic solutions depending on the metals
to be removed. Purolite S930 finds use in processes
for extraction and recovery of metals from ores,
galvanic plating solutions, pickling baths, and
effluents even in the presence of alkaline earth
metals (calcium and magnesium). Further important
uses include the refining of the salt solutions
of transition and precious metals and for the cleaning
and purification of various organic or inorganic
chemical products by removal of heavy metals contamination
(usually from aqueous solution). |
Data
Sheet
MSDS
Sheet |
| S940 |
Brine |
Purolite
S940 is a chelating resin of macroporous structure,
with a polystyrene matrix crosslinked with divinylbenzene
(DVB) substituted with weakly acidic aminophosphonic
active groups. This chemical structure facilitates
the formation of complexes with metallic ions. The
aminophosphonic chelating resins have a greater
affinity for certain cations, and form more stable
complexes with cations of low atomic mass metals
than their iminodiacetic resin counterparts. Hence
Purolite S940 is capable of fixing one or more specific
cations from a larger range even from solutions
which are highly concentrated. |
|
S950 |
Removal
of Cations of Heavy Metals |
Purolite
S950 is a macroporous aminophosphonic acid chelating
resin, designed for the removal of cations of toxic
metals such as lead, copper and zinc from industrial
effluents at low pH. At somewhat higher pH values,
calcium, magnesium and barium, as well as the toxic
metals cadmium, nickel, and cobalt are strongly
complexed and may be separated from quite high concentrations
of univalent cations. Unlike Purolite S930, the
well known iminodiacetic acid resin, which is selective
for heavy metal ions, but not for common divalent
ions (calcium and magnesium), Purolite S950 is more
highly selective (under the appropriate conditions)
for a range of both heavy metal and common divalent
ions. Hence its use may be recommended where it
is necessary to remove calcium or magnesium in order
to avoid possible precipitation, or where its selectivity
for a particular range of metals offers advantages. |
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| S957 |
Selective
Removal of Ferric Iron |
Purolite
S957 is a specially developed Monophos chelating
resin, which incorporates phosphonic, and sulphonic
functional groups on a mechanically and osmotically
resistant matrix. These combined properties give
it high selectivity for iron and other transitional
metals, even in acidic solutions. Purolite S957
has been especially designed for the selective removal
of ferric iron from acidic solutions, such as copper
electrolyte or from nickel, cobalt and zinc processing
solutions. Purolite S957 can also be used in potable
water applications for the selective removal of
trace levels of selected metals from neutral pH
waters. Its selectivity for uranium and other lanthanide
elements should give good opportunities for its
successful employment in other areas. |
|
S984 |
Cobalt
Removal |
Purolite
S984 is a high capacity, macroporous chelating resin
with a polyacrylic matrix supporting functional
groups of the polyamine type. The carefully formulated,
macroporous acrylic matrix ensures excellent exchange
kinetics for the removal of trace heavy metals and
other anions from wastewater streams. The special
polyamine functionality produces very interesting
operating capacities and makes the uptake of specific
cations possible even when they are present in the
waste stream as organic anionic complexes. Its tough
and resilient macroporous structure also affords
excellent mechanical strength and resistance to
osmotic shock. |
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