Case Study

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CASE HISTORY

#0-31

Calcium Sulfate Scale
Control With ML2580
Background

Product

Mining company operates an ore roasting

ML2580 is a unique blend of sequestering

operation for gold recovery in the western

agents and crystal distortion polymers

US. SO is generated in the process and

for a dual approach when inhibiting the

quenched with water creating a super

formation of calcium sulfate.

2

saturated stream of SO . Calcium sulfate
4

(gypsum) scale forms in the process
plumbing and reduces critical flow rates.
After months of reduced production,
the decision was made to shut down
and hydro-blast the system. The water
treatment incumbent of 18 years told the
customer there was nothing they could
do to remedy the current conditions.

The final agreed-upon dosage of ML2580
was 33 percent lower than the previous
chemical supplier.

The overall annual

cost was reduced by a staggering 45%.
This, coupled with superior performance
and uninhibited production, was more
than enough to award the site wide
business to the local ChemTreat team.

Problem
Company

Benefits

was

falling

behind

their

monthly production budget by 50%,
clearly unacceptable.

Solution
After the system was cleaned by weeks
of hydro-blasting, the local ChemTreat
team was allowed to conduct a survey
and propose their solutions. The deposit
that plagued the site was calcium sulfate.
ML2580 was proposed as the product
of choice.

ML2580 was evaluated in

the process stream for several weeks to
establish an effective dosage. A dosage
of 10 ppm was achieved with no trace of
deposition. Scale probes were examined
daily and water chemistry analyzed to
determine TDS mass balance.

Contact your local ChemTreat Rep to find out how we
can help you reduce your plant’s operating costs.

(800) 442-8292

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