KARRⓇ Column – Liquid Liquid Extraction Equipment
Characteristics
- Highest capacity: 30-60 M3/M2-hr
- Good efficiency
- Good turndown capability (25%)
- Uniform shear mixing
- Best suited for systems that emulsify
SCHEIBELⓇ Column – Liquid Liquid Extraction Equipment
Characteristics
- Reasonable capacity: 15-25 M3/M2-hr
- High efficiency due to internal baffling
- Good turndown capability (25%)
- Best suited when many stages are required
- Not recommended for highly fouling systems or systems that tend to emulsify
Rotating Disc Contactor (RDC) Columns – Agitated Column Design
Characteristics
- Reasonable capacity: 20-30 M3/M2-hr
- Limited efficiency due to axial backmixing
- Suitable for viscous materials
- Suitable for fouling materials
- Sensitive to emulsions due to high shear mixing
- Reasonable turndown (40%)
Pulsed Column
Characteristics
- Reasonable capacity: 20-30 M3/M2-hr
- Best suited for nuclear applications due to lack of seal
- Suited for corrosive applications when constructed out of non-metals
- Limited stages due to backmixing
- Limited diameter/height due to pulse energy required
Sieve Tray
Characteristics
- High capacity: 20-30 M3/M2
- Poor efficiency due to backmixing and wetting
- Limited turndown flexibility
- Affected by changes in wetting characteristics
- Limited as to which phase can be dispersed
Packed – Random
Characteristics
- High capacity: 40-80 M3/M2-hr
- Poor efficiency due to backmixing and wetting
- Limited turndown flexibility
- Affected by changes in wetting characteristics
- Limited as to which phase can be dispersed
Packed – Structured
Characteristics
- High capacity: 30-50 M3/M2-hr
- Good efficiency due to minimum backmixing
- Multiple interfaces can be a problem
- Limited turndown flexibility
- Affected by changes in wetting characteristics
- Limited as to which phase can be dispersed
Explore the assembly of a KARR® Extraction Column, which is used to effectively extract organic acid from a feed stream.
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