17/09/2026
Excellent Opportunity to acquire
Sodium Metabisulfite Food Grade 15,000 MT/year
Plant Types: Chemical and Specialty Chemical
Plant Sub Types: Sodium Meta Bi-Sulfite Plant
Capacity: 15000 metric tons/yr
Raw Materials: Sulfur, Soda Ash
Design Capacity:
• Sodium Metabisulfite Food Grade 15,000 MT/year
• Magnesium sulfate heptahydrate (MgSO4•7H2O) ≥95% purity ~1800 MT/year by product
Production Process Description
Process Characteristics
Using “excess air + solid sulfur” incineration process, the obtained sulfur dioxide gas concentration is about 12%~15%. Control the reasonable sulfur incineration temperature to ensure complete combustion of sulfur.
Using our proprietary technology for solid sulfur feed system, so that the sulfur incinerator temperature is stable, the sublimation sulfur is less in the flue gas. The plant is designed with negative pressure air blowing system, which has good operating environment, and sulfur yield is high.
Using automatic continuous discharging centrifuge, which is a continuous automatic operation, is safe and reliable, saving manpower.
The low concentration sulfuric acid waste liquid is used for production of Magnesium Sulfate products, so the plant has no waste liquid effluent discharge.
Perfect design of exhaust gas treatment. In the waste gas, SO2 concentration is less than 50mg/Nm3（SO2≤50mg/Nm3）.
Process Description
Air Compression and purification section
The air is filtration by air filter, and then is feed into air compressor, the air is compressed by air compressor and is feed into sulfur incinerator, the air burning with solid sulfur and obtain sulfur dioxide gas (SO2).
Sulfur incineration section
The solid sulfur is fed into sulfur incinerator by solid sulfur feeder, the solid sulfur is mixed with air and burning in the sulfur incinerator, and obtain sulfur dioxide gas (SO2), and release a lot of heat at the same time.
S + O2 = SO2 + Q
A part of sulfur dioxide reaction with oxygen and get sulfur trioxide.
2SO2 + O2 = 2SO3 -Q
Sulfur dioxide gas purification section
After burning, the hot flue gas is enter the flue gas buffer tank, and then is enter the cooling pipe, using circulating water to cooling the flue gas, the flue gas is cooling to 50~60℃ and then is feed into flue gas scrubber, through bubble washing to remove SO3 of flue gas. After the flue gas scrubber, using stage of separator to separation and removal of entrained droplets of flue gas. The scrubbing obtained dilute sulfuric acid is collected and used to produce Magnesium Sulfate by-product. The purified sulfur dioxide gas is sent (through pipeline) to sodium Metabisulfite synthesis section.
SO3 + H2O = H2SO4
For More Information, please don't hesitate to contact Us:
Tell: 002 02 2690 3100
: 002 02 2690 3200
E-mail : [email protected]
Mobile (WhatsApp): 002 0100 570 500
