XXXI International Mineral Processing Congress 2024 Proceedings/Washington, DC/Sep 29–Oct 3 201
per hour (tph). The circuit includes all equipment necessary
to process material on site and is mounted on skid frames
that can be easily hauled on a flatbed trailer. The HPSA skid
in Gen B features three agitated HPSA tanks with dedi-
cated pumps that push material through collision cham-
bers and deliver material into the next tank. This allows
the material to circulate through the system in a “round
robin” style. With this system, the operating parameters of
residence time and nozzle velocity can be fine-tuned, allow-
ing the unit to be used in many different applications and
tailored to sites with distinctive mineralogy.
Disa’s Gen Charlie (Gen C) design consists of three
tanks in parallel with two pumps on each tank: one transfer
pump and one recirculation pump. The transfer pumps feed
a set of collision chambers between tanks this guarantees
a minimum of 3 circuits through collision chambers for
every particle, preventing material from short circuiting
through the unit. Furthermore, with transfer pumps, Gen
C also has incorporated collision chambers into recircula-
tion circuits to reduce settling and increase the probability
of particle-particle collision events, thus increasing libera-
tion probability for minerals from their host rock. The col-
lision recirculation pumps allow Gen C to fine tune the
extent of material processing and dispersion based on each
site’s specific mineral requirements. Furthermore, to allow
for higher throughputs and lower energy requirements Gen
C units utilizes a N:1 parallel chamber to pump configu-
ration for each HPSA circuit to utilize higher efficiency,
higher throughput pumps. The parallel chamber design
also provides the option to bypass individual chambers for
Figure 3. Evolution of the HPSA batch unit from the original patent to first prototype, to Lab and Lab Bench Scale units
Figure 4. Gen A HPSA system at an iron tailings site
per hour (tph). The circuit includes all equipment necessary
to process material on site and is mounted on skid frames
that can be easily hauled on a flatbed trailer. The HPSA skid
in Gen B features three agitated HPSA tanks with dedi-
cated pumps that push material through collision cham-
bers and deliver material into the next tank. This allows
the material to circulate through the system in a “round
robin” style. With this system, the operating parameters of
residence time and nozzle velocity can be fine-tuned, allow-
ing the unit to be used in many different applications and
tailored to sites with distinctive mineralogy.
Disa’s Gen Charlie (Gen C) design consists of three
tanks in parallel with two pumps on each tank: one transfer
pump and one recirculation pump. The transfer pumps feed
a set of collision chambers between tanks this guarantees
a minimum of 3 circuits through collision chambers for
every particle, preventing material from short circuiting
through the unit. Furthermore, with transfer pumps, Gen
C also has incorporated collision chambers into recircula-
tion circuits to reduce settling and increase the probability
of particle-particle collision events, thus increasing libera-
tion probability for minerals from their host rock. The col-
lision recirculation pumps allow Gen C to fine tune the
extent of material processing and dispersion based on each
site’s specific mineral requirements. Furthermore, to allow
for higher throughputs and lower energy requirements Gen
C units utilizes a N:1 parallel chamber to pump configu-
ration for each HPSA circuit to utilize higher efficiency,
higher throughput pumps. The parallel chamber design
also provides the option to bypass individual chambers for
Figure 3. Evolution of the HPSA batch unit from the original patent to first prototype, to Lab and Lab Bench Scale units
Figure 4. Gen A HPSA system at an iron tailings site