SODIUM SULPHIDE
[EIRI/EDPR/1665] J.C.: 485INR, 858US$
INTRODUCTION
Sodium sulphide, Na2s, is an organic chemical that has attained as very important position in the organic chemical industry.
It is an important sulphide of sodium. It is widely used in leather industry for removing hairs from the hide. It finds extensive applications in textile and also synthetics of sulphur dyes and reduction of amino compounds. It is also used in paper industry, lothogrraphy and engraving manufacture of sulphur black dyes etc.
There was no production of sodium sulphide in India before the war, all the requirements being met from imports. Arrangements for the import of sodium sulphide failed and considerably difficulty was experienced by the textile and terming industries in meeting the requirements of the defense serious for textiles and leather. The question of developing the sodium sulphide industry in India became urgent and was immediately taken up. Shortly before that time extensive deposits of sodium sulphate from which sodium sulphide is manufactured. The smaller producers either obtained sodium sulphate which left over as a by-product in the manufacture of bichromates or hydrochloric and nitric acids or Rayon industries, as in most foreign countries. There was no control over either production of sodium sulphide or its distribution or its price during war time.
Sodium sulfide is the chemical compound with the formula Na2S, or more commonly its hydrate Na2S•9H2O. Both are colorless water-soluble salts that give strongly alkaline solutions. When exposed to moist air, Na2S and its hydrates emit hydrogen sulfide, which smells like rotten eggs. Some commercial samples are specified as Na2S•xH2O, where a weight percentage of Na2S is specified. Commonly available grades have around 60% Na2S by weight, which means that x is around 3. Such technical grades of sodium sulfide have a yellow appearance owing to the presence of polysulfides. These grades of sodium sulfide are marketed as 'sodium sulfide flakes'. Although the solid is yellow, solutions of it are colorless.
COST ESTIMATION
Plant Capacity 50 MT/Day
Land & Building (8000 sq.mt.) Rs. 4.30 Cr
Plant & Machinery Rs. 1.85 Cr
Working Capital for 3 Months Rs. 5.08 Cr
Total Capital Investment Rs. 11.46 Cr
Rate of Return 51%
Break Even Point 35%
CONTENTS
INTRODUCTION
USES
PROPERTIES
B.I.S SPECIFICATION
REQUIREMENTS OF SODIUM SULPHIDE TECHNICAL
PACKAGING AND MARKING OF SODIUM SULPHIDE TECHNICAL
MARKET POSITION
PRESENT MANUFACTURERS/SUPPLIERS OF SODIUM SULPHIDE
METHOD OF PREPERATION OF SODIUM SULFIDE
MANUFACTURING PROCESS OF SODIUM SULPHIDE
FROM SODIUM SULPHATE
DETERMINATION OF TOTAL SULPHIDES, HYDROSULPHIDE
AND EXCESS ALKALI
PHENOLPHTHALEIN INDICATOR SOLUTION
DETERMINATION OF REDUCING COMPOUNDS (OTHRT THAN
SODIUM SULPHIDE AND SODIUM HYDROSULPHIDE)
DETERMINIATION OF WATER INSOLUBLE OTHER THAN
IRON ALUMINIUM (COMPOUND)
RAW MATERIAL REQUIREMENTS
PROCESS FLOW DIAGRAM
PRODUCTION METHOD AND TECHNOLOGY OF SODIUM SULFIDE
PRINCIPLES OF PLANT LAYOUT
PLANT LOCATION FACTORS
EXPLANATION OF TERMS USED IN THE PROJECT REPORT
PROJECT IMPLEMENTATION SCHEDULES
GLOBAL SUPPLIERS OF PLANT AND EQUIPMENTS
SUPPLIERS OF PLANT AND MACHINERIES
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)
