Fine Chemical Industry Decanter Centrifuge

In fine chemical production, many process streams contain fine particles, corrosive liquids, organic solvents, salts, catalysts, pigments, polymers, or reaction residues. These materials often require stable solid-liquid separation before drying, wastewater treatment, solvent recovery, mother liquor recycling, or further purification.

A decanter centrifuge is used for continuous separation of fine chemical slurry. Under centrifugal force, heavier solid particles settle on the bowl wall, while the clarified liquid forms an inner liquid layer. The screw conveyor moves the settled solids toward the discharge end and discharges them continuously.

Compared with simple sedimentation or batch filtration, a decanter centrifuge is more suitable for continuous production lines, high-throughput slurry treatment, enclosed operation, and automatic solids discharge.

For fine chemical plants, the key is not only capacity. More important factors include particle size, solids content, viscosity, corrosiveness, solvent compatibility, target cake moisture, clarified liquid quality, explosion-proof requirements, and material selection.

A decanter centrifuge can be installed in different positions depending on the process route.

Typical process routes include:

Reaction → Cooling / Crystallization → Decanter centrifuge → Wet cake discharge → Drying or packaging

Reaction slurry → Decanter centrifuge → Clarified liquid recovery → Solids discharge

Process wastewater → Chemical conditioning → Decanter centrifuge → Sludge cake discharge → Filtrate return or further treatment

Solvent-containing slurry → Closed decanter separation → Liquid recovery → Solids handling

In some fine chemical projects, the decanter centrifuge is used as a pre-separation unit before filter press, dryer, evaporator, solvent recovery system, or wastewater treatment system.

Continuous solid-liquid separation
Suitable for continuous fine chemical production lines, reducing manual batch handling.

Typical processing capacity
Available for small and large chemical plants, with typical capacity from about 1–50 m³/h, depending on slurry properties and machine model.

Improved solids recovery
Helps recover catalysts, pigments, crystals, or reaction residues from process liquid.

Reduced downstream drying load
Stable wet cake discharge can help reduce load on dryers or further dewatering equipment.

Support for mother liquor recovery
Clarified liquid or mother liquor can be returned, treated, or sent to downstream recovery systems depending on process requirements.

Corrosion-resistant material options
SS316L, duplex stainless steel, 904L, titanium, or special alloys can be selected according to chemical conditions.

Wear-resistant design for abrasive slurry
Hardfacing, tungsten carbide, ceramic protection, and reinforced discharge areas are available for crystal or catalyst slurry.

Enclosed and automatic operation
PLC control, continuous feeding, automatic discharge, and sealed structure help improve operational stability and reduce manual intervention.

Explosion-proof options available
For solvent-containing slurry, explosion-proof motor, electrical control, sealing, grounding, and nitrogen protection can be configured.

If you have local customer channels or project resources involving fine chemical slurry, catalyst slurry, pigment slurry, dye intermediates, resin wastewater, acidic process slurry, alkaline process slurry, corrosive mother liquor, solvent-containing slurry, or chemical wastewater sludge, Peony welcomes cooperation.

Peony can support local agents, distributors, and project partners with technical model selection, fine chemical slurry separation evaluation, anti-corrosion material recommendation, wear-protection configuration, explosion-proof design, process proposal, manufacturing, installation guidance, commissioning support, spare parts, and after-sales service.

Please send us your target market, customer type, material condition, project background, and cooperation proposal. Our team will evaluate the opportunity and provide technical and commercial support for suitable fine chemical separation projects.