MetallurgyTechniques
-Manufacture
of decorative gold plating solution concentrate
Introduction A national research organisation offers a process
for manufacture of decorative gold plating solution
concentrate. The concentrate can be used for preparation
of decorative gold plating solutions by suitable dilution.
The decorative gold plating solutions
thus prepared give rise to easily polished semi bright
deposits on bright nickel plated articles like ear rings,
bangles and rings of brass of high copper alloy which
are used for production of low cost jewellery. Gold
is anodically dissolved in a potassium cyanide solution
concentrate by adding other chemicals as required.
Marketing of
the manufactured product : Marketing should
be done by the licensee
List of machinery/equipment :
AC to DC rectifier single phase
Areas of application
Metal industry: The concentrate
can be used for preparation of decorative gold plating
solutions by suitable dilution. The demand is at present
met by indigenous in house production which is technologically
not sound.
If all gold covering jewellery units,
switch over to gold plating, gold plating concentrate
costing more than one crore of rupees may be required
by each centre such as one at Machillipatnam.
Production capacity:
240 litres with 20 g/litre gold per year.
Stage of development:
Commercialised in India
Inputs required
Raw materials: Pure gold and L.R. grade chemicals
Economic data
Total project cost : Rs. 1,85,000/-
Cost of production : Rs. 791.70 per
100 ml of concentrate
Fixed capital on building : Rs. 1,25,000/-
Machinery/equipment : Rs. 48,000/-
Working capital : Rs.4,90,000/-
Know-how fee : negotiable
Return on investment : 28.3%
Break even point : 57%
Transfer forms
Know-how; consultancy; manufacturing licence
For further
information please contact:
Technology Bureau for Small Enterprises,
APCTT Building, Near Technology Bhawan,
PO Box 4575, Off New Mehrauli Road,
New Delhi-110 016
