CHROMITE BENEFICIATION PLANT
[EIRI/DPR 6900](J.C.3806)
INTRODUCTION
Chromium is the 21st most abundant metal in the Earth's crust. Its atomic no. = 24 is placed in Group VI B of the periodic table alongwith tungsten & molybdenum.
The only commercial ore of Chromium is the Chromite (FeO. Cr2 O3). Chromite contains 68% Cr2O3 & 32% FeO. This works out about 46% chromium in the Chromite ore. As a matter of fact, the Cr/Fe ratio drastically varies in the ore depending on the origin of ore.
Most chromite ores are rich enough for hand sorting. However, fines or low-grade ores can be effectively concentrated by gravity separation methods yielding concentrates with approx. 50% Cr2O3. The Cr/Fe ratio does not change as the original ore is concentrated by gravity.
Supplies of high grade lumpy ore is decreasing in the world while availability of high grade fines & low grade chromite has increased. This condition has necessitated adoption of suitable technologies for concentrating & up grading the fines & low grade ores to commercially extract able levels.
Agglomeration process has been found suitable of converting low grade ores & fines into usable form.
i) Briquetting with a binder,
ii) Producing oxide pellets by kiln firing,
iii) Production of pre-reduced pellet by furnace treatment.
The above three methods of agglomeration are in vogue.
Chromite deposits occur in Olivine & pyroxene rocks and their derivatives. They appear in strati form deposits several feet deep, covering a wide area and are usually mind by under ground methods. Sometimes, isolated lenticular, tubular or pod-shaped deposits can have as high as millions of tonnes in a stretch.
COST ESTIMATION
Plant Capacity 50,000 MT/Annum
Land & Building (50 Acres) Rs. 25.40 Cr
Plant & Machinery Rs. 34.00 Cr
Working Capital for 3 Months Rs. 48.01 Cr
Total Capital Investment Rs. 113.92 Cr
Rate of Return 45%
Break Even Point 50%
CONTENTS
INTRODUCTION
USES AND APPLICATIONS
MARKET SURVEY
B.I.S. SPECIFICATIONS
ADDRESSES OF PLANT & MACHINE SUPPLIERS (IMPORTED)
PROPERTIES
MANUFACTURING PROCESS UPTO CHROMITE ORE-BENIFICIATION
PROCESS FLOW CHART
ENERGY FACTOR OF FERRO ALLOY INDUSTRIES
METHODS OF REDUCING FERROCHROME COST
CHROMITE ORE BENEFICIATION & CHARGE CHROME PLANT DETAILS
PLANT LAYOUT
ADDRESSES OF RAW MATERIAL SUPPLIERS
ADDRESSES OF PLANT & MACHINERY SUPPLIERS (INDIGENEOUS)
APPENDIX – A:
01. PLANT ECONOMICS
02. LAND & BUILDING
03. PLANT AND MACHINERY
04. OTHER FIXED ASSESTS
05. FIXED CAPITAL
06. RAW MATERIAL
07. SALARY AND WAGES
08. UTILITIES AND OVERHEADS
09. TOTAL WORKING CAPITAL
10. TOTAL CAPITAL INVESTMENT
11. COST OF PRODUCTION
12. TURN OVER/ANNUM
13. BREAK EVEN POINT
14. RESOURCES FOR FINANCE
15. INSTALMENT PAYABLE IN 5 YEARS
16. DEPRECIATION CHART FOR 5 YEARS
17. PROFIT ANALYSIS FOR 5 YEARS
18. PROJECTED BALANCE SHEET FOR (5 YEARS)
