The Environment

Unipar takes the appropriate measures to manage all the environmental aspects and impacts related to its activities, products and services, including the adequate management of risk minimization measures.

Waste is quantified and classified according to each area’s regulations, and it receives an environmentally-appropriate treatment and final destination, with the use of industrial fillings that are duly projected and licensed together with the environmental agencies.

Liquid effluents undergo a strict treatment through duly projected, licensed and operated units. The liquid effluent disposal from these units is monitored and consistently meets all the standards set forth in each area’s legislation. At the Cubatão unit, effluents go through an aquarium full of fish before being poured into the river, proving the quality of the treatment.

For gas effluents, there are duly projected, licensed and operated systems of collection and abatement or incineration, aimed at ensuring compliance with local laws. In Cubatão, where the factory is very close to the community, Unipar has in place the SAFER System – a preventive safety system that simulates product losses and provides real-time information to assist in the decision-making process in potential emergency situations.

Our plants are surrounded by huge green spaces and natural reserves, such as Cubatão, a Reserva Particular do Patrimônio Natural (RPPN), according to the IBAMA. It is possible to achieve a balance between the company’s work and the environment’s protection.


 650,000 m2 (6,996,541 ft2) of green spaces

 Santo André  

 10,000,000 m2 (107,639,104 ft2) of preserved native forests



Sodium Hypochlorite Reactor

 Hypochlorite is produced by a reaction between gaseous Chlorine and a Caustic soda solution being cooled down.


EDC Reactor

EDC (Dichloroethane) is obtained through a reaction between liquid chlorine and ethylene (inserted through a tube) and it is purified by distillation.


Hydrochloric Acid Reaction Furnace

Hydrochloric acid is produced by a controlled combustion reaction of Chlorine and hydrogen, followed by absorption in treated water.



Caustic soda is produced by electrolysis and reduced through the evaporation process.



 Then, the Soda is cooled down and stored in tanks, before being shipped.


(8) Cooling Chlorine

(9) Chlorine Withdrawal

(10) Chlorine Compression

(8) The produced gaseous chlorine is cooled down, (9) dried out and (10) compressed. After being compressed, it turns into a liquid state at low temperature.


(3) Treatment

(4) Filtration

(5) Control

(3) The PICKLE is about eliminating foreign bodies; it is filtered (4) and undergoes a strict control (5) before feeding the ELECTROLYTIC CELLS.


(3) Tratamiento

(4) Filtración

(5) Control

(3) La salmuera se trata para eliminar impurezas, se filtra (4) y pasa por un estricto control (5) para alimentar las CÉLULAS ELECTROLÍTICAS.



If there are salt (sodium chloride) and water in stock, you need to supply our transformers with electricity.


(11) Licuefacción de Cloro

(12) Almacenamiento de Cloro

(11) El cloro en esta forma se almacena en tanques (12) donde se carga en camiones especiales


Sala de Celdas

La ELECTRÓLISIS tiene lugar en la celda. Y así, la energía eléctrica actúa sobre la salmuera y la transforma en SODA CÁUSTICA, CLORO E HIDRÓGENO.

News coming soon



A Soda Cáustica é produzida na eletrólise e concentrada pelo processo de evaporação.


Cell Room

The ELECTROLYSIS takes place in the cell. This way, electric energy acts on the brine and transforms it into CAUSTIC SODA, CHLORINE AND HYDROGEN.


(3) Tratamento

(4) Filtração

(5) Controle

(3) A SALMOURA é tratada para eliminar impurezas, filtrada (4) e passa sob um rigoroso controle (5) para alimentar as CÉLULAS ELETROLÍTICAS.



Next, prepare the PICKLE obtained from dissolving the salt in the water to use afterwards in the ELECTROLYSIS.