MANUFACTURE OF CELLULOSE ACETATE
[EIRI/EDPR/1356] J.C. 122
INTRODUCTION
The first reported orgaic ester of cellulose was cellulose acetate, prepared by schutzenberger (1865) by heating cotton and acetic anhydride to about 180oC in a sealed tube until the cotton dissolved. Franchiomont (1879) accomplished this reaction at a lower temperature with the aid of H2S04 as a catalyst. The product in both the cases was very nearly the triester. Miles (1903) first described partially hydrolyzed (generally called secondary) cellulose acetate and distinguished it from the tri acetate by its solubility in acetone. The solubility of secondary acetate in a low cost and relatively non-toxi solvent such as acetone contributed greatly to the development and commercilisation of the material.
Acetate rayon in the early 1920's ensured cellulose acetate at an economic price and in regular bulk supply and in 1924, the name rayon was established throughout the world as the generic term of artificial silk. The establishment of the Rayon industry made the cellulose plastic an economic possibility. The British Cellulose and Chemical Manufacturing Co., established in spondon became the British Celanese Co., and the name of celanese became world fames, before the 1930's were out, this was joined by others which today are equally world famous such as East man and Kodak, Hercules and courtaulds. In 1936, the world output of Rayon passed te 1000 million lb mark.
COST ESTIMATION
Plant Capacity 168.33 MT/Day
Land & Building (5000 sq.mt.) Rs. 8.88 Cr
Plant & Machinery Rs. 1.74 Cr
Working Capital for 1 Month Rs. 75.12 Cr
Total Capital Investment Rs. 86.33 Cr
Rate of Return 70%
Break Even Point 34%
CONTENTS
INTRODUCTION
PROPERTIES
USES & APPLICATIONS
MARKET SURVEY
RAW MATERIAL SECTION
B.I.S. SPECIFICATION
PROCESS OF MANUFACTURE
ENERGY BALANCE OF CELLULOSE ACETATE
PROCESS PARAMETERS
PRESENT MANUFACTURERS OF CELLULOSE ACETATES PROCESS FOR OBTAINING CELLULOSE ACETATE
FROM AGRICULTURAL BY-PRODUCTS
PLANT LAYOUT CELLULOSE ACETATE FIBER PRODUCTION
FLOW SHEET FOR THE MANUFACTURE OF CELLULOSE ACETATE
SUPPLIERS OF RAW MATERIALS
SUPPLIERS OF PLANT AND EQUIPMENT'S
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)