|
Title
of Technology to be offered
|
A process for passivation
of galvanizing surface
|
|
Type
of Technology
|
Indigenous
|
|
Area
of Technology
|
Materials and Material
Science
|
|
Brief
description/abstract
|
The process is simple, low
capital intensive and can easily be adopted in small /large scale
sectors. In the process, the ingredients are dissolved in hot (85+ 50C) water with high speed stirrer and cooled.
Activators and passivators are prepared under controlled conditions
and mixed with other ingredients. The process is simple and does not
required big plant and machinates.
|
|
Major
Raw Material
|
(a) Water borne polymers
(b) Chromium based compounds (c) Acids
(Inorganic/organic/surfactants/oxidizer)
|
|
Major
Plant Equipment/Machinery
|
(a) HDPE Tank (b) High
speed stirrer (c) Immersion heater etc. costing Rs 2.00 lakhs
(approx.) All are indigenously available.
|
|
Area
of application
|
Minerals, Metals and
Materials
|
|
Details
of specification application
|
Finds major application for
the passivation of galvanized tubes and sheets to prevent white rust
|
|
Status
of Development
|
The process standardised at
a scale of 3000 litre per week.
|
|
Ecological/Environmental
Impact (if any, specify
briefly)
|
Reduced pollution hazards
as the process contains low Chromium (VI)
|
|
Patenting
details
|
1284/DEL/90, Dt. 18.12.90,
India
|
|
Extent
of Commercialisation
|
Seeking to licence or sell this
innovation
|
|
Technology
Transferring Agent
|
NML/CSIR
|
|
Technology
Transfer Assistance Offered (Optional)
|
Includes (a) Process know
how (b) details of equipment's (c) Plant lay out (d) Quality
assurance. Assistance in setting up the plant on separate terms.
|
|
Key
words
|
Passivator, Galvanized
Surface, Corrosion resistance
|
|
Additional
Information (if any)
|
A plant with a capacity
process 3000 litres passivator per week costs approximately Rs. 12.0
lakhs. Ideally suitable for the small scale industry.
|
|
Country
of origin
|
India
|
