Sodium Tripolyphosphate (STPP) Plant

Product Overview

We deliver complete turn‑key Sodium Tripolyphosphate (STPP / Na₅P₃O₁₀) production plant and full‑set production equipment for global chemical investors. Our STPP production line adopts mature neutralization‑dehydration‑polycondensation‑granulation process, using phosphoric acid and soda ash as raw materials to produce high‑quality industrial‑grade STPP powder and granular products.

We support customized annual capacity from small‑scale to large‑scale units. The whole line includes neutralization reactor, spray drying system, polycondensation furnace, cooling & granulation unit, dust‑removal system, finished‑product screening & packaging system, and PLC automatic control system.

The whole production process realizes continuous feeding, reaction, polymerization, granulation and automatic packaging. Strict online monitoring ensures stable product purity, particle size and whiteness to meet international industrial‑grade standards.

Core Advantages of Sodium Tripolyphosphate Production Line

1. Stable polymerization performance: Optimized temperature & pressure control system, low unreacted residue, stable STPP product quality, good solubility, less caking.
2. High raw‑material utilization: Optimized neutralization and calcination process, reduce raw‑material consumption, lower overall plant operating cost.
3. Full‑automatic PLC control: Real‑time monitoring of temperature, pressure, liquid level and material flow, reduce manual labor cost, stable long‑time running.
4. Complete environmental‑protection configuration: Equipped with waste gas recovery and dust collecting devices, low‑emission, meets international environmental‑protection requirements.
5. High‑corrosion‑resistant equipment: Key reaction units adopt anti‑corrosion material, long service life, low maintenance workload.
6. Flexible capacity customization: Custom‑design according to client’s site condition, local raw‑material situation and target output.

Main applications of the sodium tripolyphosphate production line

STPP produced from our plant is widely used in multiple industries：

• Detergent industry: Key builder for laundry powder & industrial cleaning agents, water softening, sequestering calcium & magnesium ions, improve detergency effect.
• Ceramic industry: Dispersing agent for ceramic slurry, reduce slurry water content, improve liquidity for ceramic tile production.
• Water treatment industry: Scale inhibitor and metal ion sequestrant for circulating cooling water system.
• Textile & leather industry: Used as degreasing agent and dye dispersing additive.
• Other fields: Metal surface treatment, petroleum drilling fluid, etc.

What We Can Provide For You

As professional EPC contractor for phosphate chemical plant, we supply one‑stop full‑range service for STPP factory project:

1. Project consulting & feasibility analysis according to your local raw material, site and budget.
2. Process design, plant layout drawing, PFD & PID flow chart.
3. Complete set of equipment manufacturing, anti‑corrosion treatment and factory pre‑test.
4. Oversea site installation guidance, equipment erection supervision.
5. On‑site commissioning, trial run until stable qualified STPP output.
6. Operator technical training for your local workers.
7. Long‑term spare‑parts supply and after‑sales technical support.
8. Expand‑reconstruction upgrade service for existing old STPP plant.

Reach out to us for detailed project proposal, layout drawing and latest quotation.

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