NRDC Technology offer - Precipitated Silica-Treated

PLANT PARAMETERS
Capacity	100 kgs/day
No.of Shifts per day	1
Working days per Year.	300
Land Area, m²	1000
Covered Area, m²	350
MANPOWER
Managerial	1
Skilled	5
Unskilled	3
RAW MATERIAL/DAY
Precipitated Silica	115 KG.
Silanes	8.5 KG
UTILITIES/DAY
Power	300 KWH
Water	1 KL
Fuel (Kerosene)	20 Lits
PLANT & MACHINERY
Thermic Fluid heating system		1
Rotory furnace electrically heated		1
Jet Mill 6” Ø with compressor & call other accessories		1
Nauta mixer		1
Glass Scrubber for HC1 gas absorption		1
Weighing balance		1
ECONOMICS
Know-how/turnkey fees	Negotiable
Consultancy fees	Negotiable
Operating experience	Proven
The above figures are for budgetary purpose only and subject to change in subsequent offers

USE USES:

Th Product could be used in cosmetics, printing ink, Xerox toner powder etc.

SPECIFICATIONS:

S.No.	Properties	Unit	Specified Limit
1.	Appearance	-	White free flowing Powder
2.	Moisture Content (105^oC, 2 hrs)	%	0.5 max
3.	Loss on Ignition (100^oC, hrs.) (Anhydrous basis)	%	1.5 max
4.	Bulk Density (tapped 50)	gm/lit	80-120
5.	pH Value(4% 1:1 Methanol::Water)	--	3.5-4.5
6.	Carbon Content	%	1±0.1
7.	Si₂O Content (Anhydrous basis)	%	99 min
8.	Soluble Salts (Sulfates+Chlorides)	%	0.50 max
9.	Iron Content, (As FE⁺³ )	Ppm	200 max
10.	Average Particle Size (Malvern) D50	Micron	8-12
11.	Behaviour with Water	--	Hydrophobic
12.	Surface Area	M²/gm	100-140

PROCESS

Treated silica, Precipitated Silica is ignited at elevated temp in a continuous rotory furnace.

The ignited silica is then jet milled to get in the fine size – free flowing powder material form.

This powdered silica is finally reacted with optimised quantity of silanes in a Nauta mixer at optimised temp and time to get the finished product. After completion of batch – reaction, finished product is packed in 10 kgs. Paper bag.

ADVANTAGES OVER EXISTING PROCESS

Production of treated fumed silica is very costly in comparision to this grade – hence this serves as a cheaper replacement in some of the applications.
Simple processing techqnique.

National Research Development Corporation, a Government of India Enterprise, is a premier technology transfer Corporation with four decades of experience. It has helped establish over one thousand projects in the small and medium scale sector.

The supply of technologies and services to entrepreneurs extend both in the developing and developed countries like USA, Germany, Malaysia, Burma, Nepal, Senegal, Madagascar, Indonesia Philippines, Vietnam, Lanka, Kenya, Brazil, Bangladesh and Egypt.