Mix vessel
One (1) cone-bottom polyethylene tank, nominal capacity = 15 gal

Recirculating pump
One (1) 1.5 HP centrifugal pump. ChemIndustrial's standard 3500 RPM horizontal water pump running at a working point of 24 gpm at 95 feet of head. This was the working point that resulted from using that particular pump with the arranged recirculation path.

Separator
One (1) ChemIndustrial 3" diameter Hydroclone with two body segments, 3/4" adjustable top outlet (adjusted to 4.0" from the inside of the Hydroclone cap) and 1" bottom outlet

Hoses
#1: Mix vessel bottom outlet to pump inlet at 1"
#2: Pump discharge to Hydroclone inlet at 1"
#3: Hydroclone top outlet to mix vessel lid opening at 1"
#4: Hydroclone bottom outlet to mix vessel lid opening at 1"

Arrangement
The Hydroclone was mounted vertically above the mix vessel. The discharge from Hose 3 and Hose 4 was available for visual inspection and sampling at the mix vessel lid opening.

Iron powder
Hoeganaes Corporation Ancor 80SC150 iron sponge powder (particle size distribution 100%, <150 microns)

Iron powder/water mixture
2 pounds of the powder mixed into 6 gallons of water in the cone-bottom mix vessel. The material was added while water recirculation was underway and was mixed uniformly due to the high recirculating rate.

Valves
Full port ball valves were available at hoses 1, 3 and 4. In practice, all valves except the one in hose 4 were wide open during the test. The valve in hose 4 was used to throttle flow.

• ChemIndustrial Hydroclone model HY3PPB20 - Experimental pressure drop and calculated maximum G-force curve [.pdf, 41KB]
   
• G-Force calculation proof [.pdf, 97KB]