Soda Ash Equipment Factory/Sodium Carbonate Product Production Equipment/Production Line Equipment

Product Description

Product Description

Soda Ash Production Line (Sodium Carbonate Manufacturing Plant)

 

Our complete soda ash production line adopts mature Solvay ammonia-soda process or Hou Debang combined soda process to produce industrial sodium carbonate (Na2CO3), including light soda ash and dense soda ash.

 

Production Flow

 

Raw brine purification → Ammonia absorption → Carbonation precipitation → Sodium bicarbonate filtration → Ammonia distillation & recovery → Heavy soda calcination → Light soda ash finished product → Optional hydration & densification unit for dense soda ash.

 

Finished Soda Ash Application

 

• Glass industry: flat glass, container glass, automotive glass
• Detergent & daily chemical industry
• Water treatment, pH neutralization
• Papermaking, printing & dyeing
• Metallurgy, inorganic chemical synthesis

 

We provide two cooperation modes:
 

EPC Turnkey Project: Overall factory design, all equipment, technical package, overseas construction guidance, commissioning and staff training.
 

Separate Equipment Supply: Single machine supply, such as carbonating tower, rotary calciner, filter, ammonia distillation tower, brine purification system.

 

All core equipment adopts anti-corrosion structure. The whole line supports continuous long-term stable operation. According to customers' local raw material condition, water resource, energy price, we provide customized process scheme and investment budget analysis.

GYF can provide Line equipment includes a complete line equipment for the following products: calcium oxide, calcium hydroxide, calcium chloride, calcium carbonate.

The following is introduced provide Soda Production Line EPC project, both solvay's ammonia soda process and combined ammonia process .

Raw material: NaCl, NH3, CO2

Reaction principle

Add the plenty of NH3 and CO2 into saturated salt water.
NaCl + NH3 + CO2 + H2O== NH4Cl + NaHCO3 ↓

And then calcine the NaHCO3 to obtain Na2CO3
2NaHCO3 == Na2CO3 + H2O + CO2↑
 

Brief process description of combined ammonia method (Hou Debang)

The soda production by combined ammonia method was founded in 1943 by Hou Debang (1890-1974), a Chinese chemical engineering expert.
It is a method that combines the two processes of ammonia alkali process and synthetic ammonia process to simultaneously produce two products: soda ash and ammonium chloride. The raw materials are salt, ammonia, and carbon dioxide --- the waste gas from the production of hydrogen from water and gas in synthetic ammonia plant. The chemical reaction principle is: C+H2O=CO+H2 CO+H2O=CO2+H2

The combined soda production method includes two processes: the first process is the same as the ammonia soda method, in which ammonia is introduced into saturated salt water to form ammonia brine, and then carbon dioxide is introduced to generate sodium bicarbonate precipitation. After filtration and washing, tiny crystals of NaHCO3 are obtained, and then calcined to produce a pure alkali product. The filtrate is a solution containing ammonium chloride and sodium chloride. The second process involves crystallization and precipitation of ammonium chloride crystals from a filtrate containing ammonium chloride and sodium chloride. "As the solubility of ammonium chloride at room temperature is greater than that of sodium chloride, the solubility at low temperatures is smaller than that of sodium chloride, and the solubility of ammonium chloride in a concentrated solution of sodium chloride is much smaller than that in water.". Therefore, under low temperature conditions, adding finely powdered sodium chloride to the filtrate and introducing ammonia gas can cause ammonium chloride to crystallize and precipitate separately. After filtration, washing, and drying, the ammonium chloride product is obtained. At this time, the filtrate obtained after ammonium chloride precipitation has been filtered out, and is basically saturated with sodium chloride, which can be recycled for use.

Compared with the ammonia alkali method, the biggest advantage of the combined alkali production method is that it improves the utilization rate of salt to over 96%, and uses the same amount of salt to produce more pure alkali than the ammonia alkali method. In addition, it comprehensively utilizes carbon dioxide from ammonia plants and chloride ions from alkali plant, while producing two valuable products - soda ash and ammonium chloride. Converting the waste gas carbon dioxide from the ammonia plant into the main raw material of the alkali plant to produce soda ash saves the huge lime kiln used to produce carbon dioxide in the alkali plant; Ammonium chloride, a nitrogen fertilizer, is produced by replacing the useless component chlorine ion (Cl -) from the alkali plant with the ammonia from the expensive sulfuric acid fixed ammonia plant. As a result, calcium chloride, which is not very useful and difficult to handle, is no longer generated, reducing environmental pollution, and greatly reducing the cost of soda ash and nitrogen fertilizer, fully reflecting the advantages of large-scale joint production.

Product Parameters

Product quality implementation standard GB210.1-2004, as shown in the following table:

Parameter Item	Technical Data
End Product	Light Soda Ash + Dense Soda Ash
Purity of Soda Ash	≥99.2% (Industrial Grade)
Optional Annual Output	50,000 / 100,000 / 200,000 / 300,000 / 500,000 MT/Year
Operation Mode	24h continuous production
Control System	PLC centralized automatic control
Ammonia Recovery Rate	≥99%
Main Raw Material	Salt brine, limestone, ammonia, fuel, industrial water
Working Temperature Range	Carbonation: 30~60ºC; Calcination: 160~230ºC
Raw Material Consumption (Reference, Per Ton Light Soda Ash)	Salt: ~1.5t; Limestone: ~1.1t; Ammonia: ≤5kg
Product Bulk Density	Light soda ash: 500-600kg/m³;Dense soda ash:1000-1200kg/m³
Power Supply Standard	Customized according to customer local voltage
Site Requirement	Provide layout drawing after confirming capacity

Index item		Class I	Class II
		Superior product	Superior product	First grade goods	Qualified product
Total alkali content (measured by mass fraction of dry base Na2CO3) / % ≥		99.4	99.2	98.8	98
Total alkali content (measured by mass fraction of wet base Na2CO3) a/%≥		98.1	97.1	97.5	96.7
Sodium chloride (based on the mass fraction of NaCl) / % ≤		0.3	0.7	0.9	1.2
Mass fraction of iron (Fe) (on dry basis) / % ≤		0.003	0.0035	0.006	0.01
Sulfate (as mass fraction of dry SO4) / % ≤		0.03	0.03b
Mass fraction of water insoluble matter / % ≤		0.02	0.03	0.1	0.15
Packing density c (g/mL) ≥		0.85	0.9	0.9	0.9
Particle size c, sieve residue /%	180μm ≥	75	70	65	60
	1.18μm ≤	2.0
a is the content at the time of packaging, and the value of the total alkali in the product at the time of delivery multiplied by the quality of the product delivered divided by the quality of the product on the delivery list shall not be less than this value.
b is the control index of ammonia alkali products.
c Heavy sodium carbonate control index.

Detailed Photos

Item	Specification
Product Name	Soda Ash Production Line / Sodium Carbonate Manufacturing Plant
Finished Product	Light Soda Ash, Dense Soda Ash (Industrial Grade)
Chemical Name	Sodium Carbonate, Na2CO3, CAS:497-19-8
Production Technology	Solvay(Ammonia-Soda) Process / Hou Debang Combined Soda Process
Annual Capacity Optional	50,000MT / 100,000MT / 200,000MT / 300,000MT / 500,000MT Per Year
Automation Degree	Fully Automatic, PLC Central Control
Raw Material	Brine (NaCl), Limestone, Ammonia, Water, Coal/Fuel
Main Equipment	Brine Purifier, Ammonia Absorption Tower, Carbonation Tower, Rotary Calciner, Ammonia Distillation Tower, Filter, Compressor, Dense Ash Hydration Unit
Control System	PLC + Touch Screen, Remote Monitoring Available
Material of Key Vessel	Cast Iron / Stainless Steel / Anti-corrosion Alloy
After-sales Service	Overseas Engineer Installation, Commissioning, Training
Project Mode	EPC Turnkey / Equipment Supply Only
Certificate	ISO9001, ISO14001

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