A Process for Acid Pickling Inhibitor

Type of Technology

Indigenous

Area of Technology

Materials and Material Science

Brief Description

A unique inhibitor with no equals in the market. High molecular weight, multistrutural bonds and presence of localised electron density at active centres enable the product to be very superior in application, with proven inhibition efficiency of over 90% at all operating concentration of acids and temperatures. It enables to reduce acid consumption by 30%, metals dissolution by 50% and fume generation by 80 to 90%

Major raw materials

• Polymers of high molecular weight
• Amine and thio-compounds etc. All are in digenously available

Major Plant Equipment/Machinery

• Tanks
• Stirrers
• Filtration assembly
• Vacuum pumps
• Weighing machine etc. All are indigenously available. Ideally suitable for small scale industry

Area of Application

Minerals, Metals and Materials

Applications

Used during pickling of steel in sulphuric acid, hydrochloric acid and phosphoric acid.

Status of Development

Process standardisation at bench scale

Ecological/Environmental Impact

No special measures are required except for those usually adopted

Technology Transfer Assistance Offered

Includes

• Process know-how
• Details of the equipment
• Plant lay-out
• Quality assurance methods. Assistance in setting up the plant and separate terms

Additional Information

A plant with a capacity to manufacture 200 lit/day costs approximately Rs. 12.00 Lakhs

For further information please contact

Director
National Metallurgical Laboratory
Jamshedpur-831 007, India