CALCIUM CARBIDE
[EIRI/DPR/5211] J.C.: 6116
INTRODUCTION
Cacium carbide, CaC2 when pure is transparent and colourless with a specific gravity of 2.22 at 180oC. It may be prepared in the laboratory by the thermal decomposition under vacuum of pure calcium cyanamide in the presence of carbon to produce absolutely white calcium cabide. Pure CaC2 is variety and the general properties of calcium properties of calcium carbide have been determined by extrapolation from values obtained on high - purity commercial carbide.
Commercial calcium carbide varies in colour from Steek-gray to reddish brown, depending on impurities and the method of manufacture. It is made from lime and coke in the lectric furnace at temperature of 2200 - 2500oC, using large amounts of electric power.
Industrial calcium carbide is about 80% pure ramainder is calcium oxide and 2-5% other impurities. Its outstanding property is that of reacting with water to produce acetylene gas.
Commercial calcium carbide is the main source of acetylene and acetylene is used principally in the synthesis of a series of organic chemicals, resins and plastics and in oxyacetylene welding and cutting of metals. Large amounts of carbide are also made for the production of calcium cyanamide by the fixation of atmospheric nitrogen. The cyanamide is, in turn, used as a fertilizer and as the basis for a series of chemicals and resins. Smaller amounts of calcium carbide are used as a dehydrating agent and as a reducing and desulfurizing agent in metallurgical processes.
Calcium carbide was made in the laboratory by early workers such as Hare and Wohler. It also was formed as a side reaction product in various industrial process, but it was notisolated or recognized.
COST ESTIMATION
Plant Capacity 10 MT/Day
Land & Building (4000 sq.mt.) Rs. 2.09 Cr
Plant & Machinery Rs. 49 Lac
Working Capital for 3 Months Rs. 1.03 Cr
Total Capital Investment Rs. 3.77 Cr
Rate of Return 70%
Break Even Point 36%
CONTENTS
INTRODUCTION
PROPERTIES OF CALCIUM CARBIDE
USES AND APPLICATIONS
B.I.S. SPECIFICATION
MARKET SURVEY
PRESENT MANUFACTURERS
RAW MATERIALS
PRINCIPAL OF MANUFACTURE
PROCESS OF MANUFACTURE
PRECAUTION
FLOWSHEET OF CALCIUM CARBIDE MANUFACTURE
PLANT LAYOUT
SUPPLIERS OF LIMESTONE
SUPPLIERS OF PLANT & MACHINERIES
SUPPLIERS OF JAW CRUSHER, PEBBLE & ROLLING MILLS
PRINCIPLES OF PLANT LAYOUT
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)
