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The Sodium Hydroxide NaOH Generator and Caustic Soda Generator

The Acid-base Generator use bipolar membrane electrodialysis technology to produce the acid and base. Under the action of a DC electric field, the bipolar membrane can dissociate water and obtain hydrogen ions and hydroxide ions on both sides of the membrane. A bipolar membrane electrodialysis system that combines bipolar membranes with other anion and cation exchange membranes can convert salts in aqueous solutions into corresponding acids and bases without introducing new components, this method is called bipolar Membrane Electrodialysis. Bipolar membrane electrodialysis is not only used for the preparation of acids and bases, but if it is cleverly combined with unipolar membranes, it can achieve a variety of functions and be used in many fields.
The bipolar membrane stack is composed of the bipolar membrane,the anion membrane and the cation membrane constitute a three-chamber of acid, alkali and salt. The anion of the salt passes through the anion membrane and combines with the H+ ion generated by the bipolar membrane to form an acid. On the other hand, the cation passes through the cation exchange membrane and the double The OH-ion generated by the polar membrane combines to form a base.

Sodium Hydroxide NaOH Generator and Caustic Soda Generator manufacturer

Characteristics for

Sodium Hydroxide NaOH Generator and Caustic Soda Generator

Chemical Name:Sodium Hydroxide NaOH Generator and Caustic Soda Generator

Synonyms:Acid-base generator, Sodium Hydroxide NaOH Generator,Caustic Soda Generator

Application:Preparation of Sodium Hydroxide NaOH Generator and Caustic Soda Generator from salt

REF. FOB Price:USD1000-200000/Piece

Min. Order:1 piece

Payment Terms:L/C,T/T,Western Union,Paypal

Lead Time:30-60 days

Month Capacity:300 pieces

Principle of bipolar membrane electrodialysis two chambers:
1,Principles of acid-base generator from strong base and salt-ACM

This principle is mainly used for the preparation of organic acids such as gluconic acid, malic acid, vC, propanesulfonic acid, oxalic acid, citric acid, tartaric acid, EDTA, lactic acid, methionine, morpholine ethanesulfonic acid, etc. The bipolar membrane process has no waste water discharge and by-product hydroxide Sodium can be recycled for the fermentation process.
2,The principle of acid-base generator from strong acid and weak base salt-ABM

This principle is mainly used in the preparation of organic bases such as triethylamine hydrochloride, triethylamine tetramethylammonium salt, ornithine tetrapropyl bromide, quaternary amine base, tetraethylammonium hydroxide, methyldiethanolamine, etc. When hydroxide is introduced, cations are not added, and anions are separated.

Principle of acid-base generator with three chambers:

Type:

Design Parameter	SYBCM10	SYABCM60	SYABCM200	SYABM100
Operating temperature (Celsius)	5-40	5-40	5-40	5-40
Optimum operating temperature(Celsius)	25-35	25-35	25-35	20-43
Acid and alkali concentration	0.5-10%	0.5-10%	0.5-10%	0.5-10%
Working Life	2-4 years	2-4 years	2-4 years	2-4 years
Size	140120340mm	460260880mm	160020002000mm	460280880mm
Number of sets	6--10 pairs	60 pairs	200 pairs	100 pairs
areas	0.09-0.15 m2	15 m2	50 m2	25 m2

Performance Introduction of SYABCM200:

200 pieces of bipolar ion exchange membrane,anion-exchange membrane and cation-exchange membrane for each.
The effective area of each membrane is 50 m2.
Current Density: 500A/m2
Under standard operating conditions, the conversion efficiency of the membrane stack is as follows(Other salts can be calculated according to the corresponding equivalent molar mass):

Name	Reaction Formula	Processing Capacity(kg/h)	Power Consumption (kWh/kg)
NaCl	H2O+NaCl--HCl+NaOH	30	1.5
Na2SO4	Na2SO4+H2O--H2SO4+NaOH	36.4	1.2
NaNO3	NaNO3+H2O--HNO3+NaOH	43.6	1.1

Usually the acid-base equivalent concentration is 1N, and the acid-base concentration can be further increased by changing the operating conditions.

Applications Areas:

1, Preparation of acid and bases from inorganic salts (such as sodium sulfate, sodium chloride, lithium chloride, etc.)
2, Production of organic acids (such as gluconic acid, lactic acid, malic acid, succinic acid, etc.)

Applications Cases:

1,Treatment and recycling of saline wastewater
2,Direct production of hydrochloric acid and sodium hydroxide from table salt (sodium chloride) Direct production of vitamin C from sodium salt of vitamin C
3,Direct production of tartaric acid from sodium tartrate
4,Direct production of lactic acid from sodium lactate
5,Direct production of gluconic acid from sodium gluconate
6,Direct production of methanesulfonic acid from sodium methanesulfonate
7,Direct separation of amino acids from fermentation broth
8,Recovery of acetic acid from sodium acetate waste water

This descriptive image comes from Parnamae et. al (January 2021), article entitled as "Bipolar membranes: A review on principles, latest developments, and applications".

The article by Parnamae et al. entitled "Bipolar membranes: A review on principles, latest developments, and applications" is considered to be an excellent source that describes the operating principle of bipolar membranes, provides a very through analysis of the recent progress in the area of bipolar membranes and use of such membranes in various applications.