Customized Ionic Membrane Caustic Soda Plant EPC Project Naoh Production Machine

Product Description

Product Description

 

• Turnkey Ion Membrane Caustic Soda Plant | Energy Saving & High Purity
• 1000-500000 Tons Annual Capacity Customized
• Full DCS Automatic Control | One-Stop EPC Service
• Exported To 40+ Countries, Stable After-Sales Support

Chinese professional manufacturer of ion exchange membrane caustic soda plant, provide full turnkey EPC service from design, equipment manufacturing, installation, commissioning to worker training. Annual capacity customizable from 1,000 tons to 500,000 tons NaOH. Adopt energy-saving zero-polar distance electrolyzer, low power consumption, high purity caustic soda output (liquid 32%/50%, solid flake/pearl ≥99%). Full PLC/DCS automatic control, green environmental protection, no mercury pollution, meet global chemical industry standards. Widely applied in alumina, paper making, textile, water treatment, fine chemical industry. Export to Southeast Asia, Middle East, Africa, South America, Europe.

1. Product Overview 
Ion membrane caustic soda production line (chlor-alkali plant) is the most advanced mainstream technology for sodium hydroxide manufacturing worldwide, replacing traditional diaphragm & mercury cell process. Raw material is industrial brine, after electrolysis, co-produce three core products: liquid caustic soda, chlorine gas, hydrogen gas. Supporting evaporation & flaking system to produce solid flake/pearl caustic soda.
We supply full set turnkey plant, flexible capacity customization, small pilot plant to large industrial mass production line, one-stop solution for overseas investors to build local alkali factory.

2. Complete Production Line Composition 

(1)Brine Purification Unit 
Primary & secondary two-stage refining, chelating resin deep filtration
Remove Ca²⁺, Mg²⁺, heavy metal ions, total impurity <20ppb
Anti-corrosion FRP reactor, automatic dosing control

(2)Ion Membrane Electrolyzer Unit 
Bipolar zero-polar distance electrolyzer, Ru-Ir coated titanium anode
Domestic high-performance perfluorinated ion membrane, service life ≥5 years
Low cell voltage, high current efficiency ≥96.5%
Automatic gas-liquid separation, avoid chlorine & hydrogen mixing risk

(3)Rectifier Power Supply System 
12/24 phase thyristor rectifier, power factor ≥0.95
Water cooling, stable DC output, low energy loss
Overvoltage, overcurrent automatic protection

(4)Chlorine & Hydrogen Treatment Unit 
Cooling, dehumidification, compression, tail gas absorption
Closed-loop waste gas recovery, reach international environmental emission standard
Supporting chlorine downstream PVC, sodium hypochlorite matching equipment

(5)Evaporation & Solid Caustic Flaking Unit 
2-4 effect multi-effect evaporator, steam recycling energy saving
Concentrate 32% lye to 48%/50% liquid caustic soda
Flaker machine produce 99% high purity solid flake caustic soda

(6)DCS Automatic Control System 
Centralized PLC/DCS intelligent monitoring
Real-time monitor temperature, current, brine concentration, product purity
Reduce manual labor, stable long-term continuous operation
 

Product Parameters

3. Core Technical Parameters

Item Parameter	Standard Specification	Advantage
Custom Annual Capacity	1,000 ~ 500,000 tons NaOH/year	Meet small factory & large chemical park demand
Power Consumption	2800~3200 kWh per ton 100% NaOH	15%-20% lower than old diaphragm process
Liquid Caustic Output Concentration	32%, 48%, 50% NaOH	Direct sales without extra concentration
Solid Caustic Purity	Flake/Pearl ≥99.0%, NaCl ≤0.03%	Qualified for alumina, textile, food grade downstream
Ion Membrane Service Life	≥5 years	Low replacement cost, long stable running
Equipment Operation Rate	≥98%	Less downtime, high factory output efficiency
Control Mode	Full DCS automatic control	2-3 workers for whole line operation
Service Life of Main Equipment	16-20 years	Durable anti-corrosion alloy material

4. Unique Product Advantages  
Ultra Low Energy Consumption, Save Operation Cost
Zero polar distance electrolyzer design, effectively reduce power consumption, greatly cut monthly electricity cost which is the biggest expense of chlor-alkali plant, bring higher profit margin for customers.

High Purity Product, Wide Downstream Market
Low impurity heavy metal content, solid caustic soda reach 99% high purity, can supply high-end market including electronic cleaning, pharmaceutical intermediate, lithium battery industry, not only low-end basic chemical field.

Green Environmental Friendly, Easy Local Approval
No mercury, no asbestos pollutant discharge, closed waste gas & wastewater recycling system, fully meet EU, Southeast Asia, Middle East environmental protection policy, easy to pass local factory EIA certification.

Full Automatic Intelligent Operation, Save Labor Cost
Central DCS control room, few on-site workers, reduce labor management cost, avoid manual operation error leading to unstable product quality.

Flexible Turnkey Customization, One-Stop EPC Service
We provide factory layout design, civil engineering drawing, equipment manufacturing, overseas installation guidance, commissioning, worker operation training, after-sales lifelong maintenance. Customers only need local plant land & power supply.

Strong Anti-Corrosion Material, Long Service Life
Key contact alkali parts adopt titanium alloy, nickel, FRP lining, special anti-corrosion stainless steel, adapt long-time strong alkali corrosive working environment.

5. Finished Caustic Soda Output Specifications 
Liquid Caustic Soda Concentration: 32%, 48%, 50% NaOH
Package: ISO tank container, plastic drum
Usage: Paper, textile, water treatment, chemical neutralization
Solid Flake / Pearl Caustic Soda
Purity: Industrial grade ≥99.0%, high purity grade ≥99.5%
Impurity: NaCl ≤0.03%, Fe ≤0.5ppm
Package: 25kg PE lined PP bag, 1000kg jumbo bag
UN Code: UN1823 solid / UN1824 liquid, Class 8 corrosive goods

6. Wide Application Industry 

Alumina & Metallurgy Industry: Bauxite refining, metal surface treatment (largest global caustic soda consumption market)
Pulp & Paper Industry: Wood delignification, pulp bleaching
Textile & Dyeing Industry: Mercerization, fabric degreasing, dye fixation
Fine Chemical Industry: Soap, detergent, surfactant, sodium salt synthesis
Water Treatment: PH adjustment, heavy metal precipitation, waste water neutralization
New Energy Industry: Lithium battery diaphragm cleaning, photovoltaic silicon wafer etching
Food & Pharmaceutical: Food peeling agent, pharmaceutical intermediate raw material (food-grade customized line available)
PVC & Plastic Industry: By-product chlorine for PVC resin production

7. Service Support 

Customized design: Adjust production capacity, product proportion (liquid/solid caustic ratio) according to customer local market demand
Documentation support: Provide CE, ISO9001, CO, Form E, Form A, MSDS, COA, equipment inspection report for customs clearance
Overseas engineering service: Send professional engineer team for installation guidance, whole plant commissioning, 1-3 months on-site training for local workers
Spare parts supply: Lifelong preferential supply of electrolyzer membrane, electrode, valve, pump spare parts, fast international delivery
After-sales guarantee: 1 year whole equipment warranty, remote online technical troubleshooting 24/7
Logistics scheme: Professional DG dangerous goods equipment packaging, sea freight container solution, coordinate local port unloading

8. Certifications & Factory Strength 
ISO9001 Quality Management System Certification
CE Mechanical Safety Certification
National Chlor-Alkali Equipment Manufacturing Qualification
Third-party SGS/BV factory inspection available
20+ years chlor-alkali equipment R&D & manufacturing factory, exported to over 40 countries
Independent chemical equipment workshop, complete processing, welding, anti-corrosion treatment production line

9.FAQ 
Q1: Can I customize small capacity plant for 5000 tons/year?
A1: Yes, we specially design mini modular electrolyzer for small-scale investors, low initial investment, fast return.
Q2: How long is the whole plant construction cycle?
A2: Equipment production 60-120 days based on capacity; Overseas installation & commissioning 30-90 days.
Q3: What raw material do I need to prepare locally?
A3: Industrial raw salt, industrial water, power supply, steam boiler (we can match boiler equipment together).
Q4: Can you send engineers to my country for installation?
A4: Absolutely, we provide full overseas on-site technical service, including installation, commissioning, worker training.
Q5: What's the warranty time of key electrolyzer equipment?
A5: Whole line 1 year warranty, core electrolyzer frame 5 years quality guarantee, ion membrane supply with cost price after warranty period.

10.The following production lines can also be customized. Please feel free to inquire.

No.	Product Name	Molecular Formula	Product Application Field	Main  Raw  Material
1	Bleaching powder concentrated	Ca(CIO)2	It is mainly used for bleaching the cotton fabrics,linen fabric,pulp and so on.Be widely used in drinking waterpurifying the water of swimming pools,silkworm breeding and so on because of ts function of disinfection and sterilization.Also used for manufacturing chemical toxicity and radioactive disinfectant.	Ca(OH)2   ,Cl2
2	Calcium chloride	CaCl2	It can be used as food additives,drying  agent,refrigerant,snow-melting agent and so on,also as petroleum drilling and welling drilling working solution,well completion fluid,petroleum chemical dehydration fluid.	CaCO3, HCL
3	Poly aluminium chloride	PAC	It is normally to be used for water treatment,function as water purifying  agent,flocculant, coagulant.	Al(OH)3/ Bauxite/ Kaolin Clay,Calcium aluminate,HCL
4	Chlorinated parafin	C15H26Cl6	It is used as flame retardant for various products;plasticizer for industries like plastic,rubber, iber etc.;surface treating agent for fabric and packing material;modifying agent for bonding material and painting;antiwear agent for high-pressure lubrication and machining of metals; mildew preventive;water-proofing agent,additive for printing ink;and so on.	Liquid wax, Cl2
5	Strong chlorine	TCCA,SDIC/ DCCNa	TCCA has high bactericidal performance,is a new generation of bactericide,bleaching agent  and shrink-resist agent with features of broad-spectrum,high efficiency and low toxicity.It's mainly used for disinfection and sterilization in drinking water,industrial circulating water, swimming poolrestaurant,hotel,public place,family,hospital,poultry eggs and prevention and treatment of fish disease,and so on.	Cyanuric acid,or Urea Cl2
6	Sodium chlorite	NaCIO2	Mainly used for cotton,linen,acrylic,polyester fiber bleaching(not suitable for wool,silk,rayon, nylon,etc.)also can be used as food,drinking water disinfection,paper bleaching and fish medicines manufacture.	NaCIO3,H2SO4, NaOH, H2O2

7	Barium chloride	BaCl2	Removing sulfate radical in the brine in chlor-alkali industry,also used for producing allkinds of barium saltpigment including barium,insecticide and so on.	BaCO3/BaSO4,HCL
8	Trichlorosilane	SiHCl3	It is used for producing silane coupling agent and important intermediate for other organic silicon products,it's also the main raw material for manufacturing polycrystalline silicon	Si,HCL
9	ADC foaming agent	azo di-carbon amide	It is the foaming agent which has the features of high gas generation,superior performance and broad usage,it's widely used for foaming in slipper,shoe sole,shoe-pad,plastic  wallpaper, ceiling,floor leather,artificial leather,heat insulation,sound insulation materials and so on	NaOH,Urea,CL
10	Ferric trichloride	FeCl3	Ferric trichloride is mainly used as the treating agent for drinking water and waste water, bxidizing agent and mordant for dyeing industry,catalyst and oxidizing agent for organic synthesis.	Fe,HCL,Cl2
11	Chloroacetic acid	MCA	In the world,chloroacetic acid is mainly used for producing sodium carboxymethyl cellulose (CMC),PVC heat stabilizer thioglycolic acid,2,4-chlorophenoxyacetic acid(2,4-D)etc.In China chloroacetic acidis mainly used in pesticide,pesticide  industry.	Acetic acid,Cl2,Acetic anhydride,H2
12	Chlorinated polyvinyl chloride	CPVC	CPVC,as a new type of chemical materials with high performance,is now already widely used  in production industries like chemical engineering,building material,electrical appliance,fiber and so on.	PVC,NaOH,Cl2
13	Polyvinyl chloride	PVC	It is the second largest variety of plastic being second to polyethylene  (PE).	C2H2   ,HCL
14	Sodium carboxymethyl cellulose	CMC	It can be used as sizing agent,emulsifying agent,stabilizing agent,bonding agent,suspending agent,thickening agent,lustering agent,crystal production preventing agent etc.,is widely  used in all kinds of industries like textile,printing and dyeing,petroleum,papermaking,leather, printing ink,ceramics,artificial  furs,synthesis washing,putty powder,ceramic simulating coating,architectural sealant,cigarette,putty paste,food and medicine and so on.	Refined cotton /wood pulpl,MCA,NaOH
15	Epoxy chloroethane	C2 H4Cl2	It is mainly used for producing fine chemicals like epoxy resin,synthetic glycerine,chlorohydrin ubber etc.	C3H6, NaOH,Cl2

 

Detailed Photos

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Turnkey Ion Membrane Caustic Soda Plant | Energy Saving & High Purity
1000-500000 Tons Annual Capacity Customized
Full DCS Automatic Control | One-Stop EPC Service
Exported To 40+ Countries, Stable After-Sales Support
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