EKB 3013 Chapter 5

Select the MAIN product produced in chlor-alkali industry

• Soda ash

• caustic soda

• chlorine gas

• hydrogen gas

The process used to produce soda ash

• Solvay

• Electrolysis

• Fuel cell

• Membrane cell

Commercial cell used to produce chlorine and caustic soda

• Membrane

• Mercury

• Diaphragm

• Fuel

Diaphragm cells contains diaphragm which is made of

• Carbon

• Stainless steel

• Asbestos

• Copper

The common polymer used in membrane cell

• PHA

• PHB

• Nafion

• Cellulose

Membrane cell requires less evaporators compared with diaphragm cell

• True

• False

Modified titanium electrode is used in which type of cell

• Membrane

• Diaphragm

• Mercury

• Fuel

The cell that requires multiple evaporators for salt preparation

• Membrane

• Mercury

• Diaphragm

The hot chlorine produced are dried in scrubber using

• Phosphoric acid

• Nitric acid

• Sulfuric acid

• Chromium

Select the hydrogen disposal methods

• converting into another product

• used for hydrogenation

• heat generation

• catalyst