Chemical Engineering May 2016 - 43

Mixers: Four
Innovations Worth a
Closer Look
Many factors can impact the success of mixing in chemical process operations. The design
breakthroughs profiled here address some of the most commonly encountered issues
All photos provided by Charles Ross & Son Company
Christine
Banaszek
Charles Ross &
Son Company
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ADvAnCeS In MIxeR
DeSIgn
PLAneTARy DISPeRSeRS
PoWDeR-InDuCTIon
MIxeRS
uLTRA-hIgh-SheAR
RoToR-STAToR MIxeRS
veRTICAL bLenDeRDRyeRS
CLoSIng
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T
42
he last few decades have not lacked
for innovations in mixing technology.
As the chemical process industries
(CPI) have made great strides in
developing novel raw materials, enhanced
value-added formulations and improved
processes - in response to ever-changing
consumer preferences and legislation - the
science and art of mixing has continued
to evolve, too, to meet the demands of modern
production.
Mixer manufacturers have needed to
quickly adapt and respond to real issues that
are encountered, from research and development
(R&D) all the way through scaleup
FIGURE 1. This planetary disperser is equipped with two
helical, planetary stirrers, four saw-tooth blades (two on each
high-speed shaft), a removable sidewall scraper arm, and a
bottom scraper (attached to one of the stirrers)
and commercial production. While many of
the solutions commonly take the form of
strategic modifications applied to prevailing
technologies, there are others that ultimately
give rise to more drastic innovations and thus
become a new mixer category all their own.
As with most novel devices and ideas, mixing
innovations do take time to spread and
gain widespread usage, some more than
others. In this article, we review four specialty
equipment designs that provide a range of
ChemiCal engineering www.Chemengonline.Com may 2016

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Chemical Engineering May 2016

Table of Contents for the Digital Edition of Chemical Engineering May 2016

Contents
Chemical Engineering May 2016 - Cover1
Chemical Engineering May 2016 - Cover2
Chemical Engineering May 2016 - Contents
Chemical Engineering May 2016 - 2
Chemical Engineering May 2016 - 3
Chemical Engineering May 2016 - 4
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Chemical Engineering May 2016 - Cover3
Chemical Engineering May 2016 - Cover4
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