Detailed Project Report (DPR) on Phthalic Anhydride (Capacity: 10 MT/Day)

PHTHALIC ANHYDRIDE
[CODE NO. 2080]

Phthalic anhydride is an industrially important raw material for the production of anthraquinone used in the manufacture of many vat dyes and in alizarin and alizarin derivatives. It is used directly for the fluorescein, eosine, and rhodamine dyes. Several esters are made from phthalic anhydride and are largely used in th~\acquer industry as plasticizers. It is also used to manufacture alkyd resins, the glyptal and rezyl resins, dioctyl phthalate and the poly-vinyl resins.

Phthalic anhydride, first discovered by Laurent in 1863, was originally prepared by the oxidation of naphthalene with chromic acid. The early methods of manufacture of phthalic anhydride involved liquid phase processes in which expensive nitric and chromic acids were used as the oxidizing agents. The growing demand for phthalic anhydride as an intermediate for dye manufacture in the latter part of the nineteenth century made it imperative that cheaper means for its production be obtained. Consequently, a method of oxidizing naphthalene by sulfuric acid in the presence of mercury salts to form phthalic anhydride was developed.

The discovery of the effectiveness of the oxides of the metals of the fifth and sixth groups of the periodic table, especially of vanadium and molybdenum oxides , in the vapor phase oxidation o£ naphthalene by air led to the present productior~. on a large commercial scale, of phthalic anhydride in either fixed or fluidized bed reactors.

The ever-increasing demand for phthalic anhydride has stimulated search for alternative raw materials. Ortho-xylene, which is available in abundant quantities from petroleum refineries, appears to be the most suitable. Phthalic anhydride may be produced from o-xylene according to the following chemical equation.

COST ESTIMATION

Plant Capacity                                              10.00 MT./day  
Land & Building (6000 Sq.Mtr)                   Rs. 3.28   Cr
Plant & Machinery                                         Rs. 4.50  Cr
W.C. for 2 Months                                         Rs. 2.45 Cr
Total Capital Investment                             Rs. 10.68 Cr
Rate of Return                                              14%
Break Even Point                                         68%
                

INTRODUCTION    
PROPERTIES    
USES AND APPLICATIONS    
B.I.S. SPECIFICATIONS    
MARKET SURVEY    
IMPORT DATA OF PHTHALIC ANHYDRIDE    
EXPORT DATA OF PHTHALIC ANHYDRIDE    
GLOBAL MARKET POSITION OF PHTHALIC ANHYDRIDE    
CHEMISTRY AND THERMODYMOMI IS IN    
COMMERCIAL PRODUCTION OF PHTHALIC ANHYDRIDE    
MANUFACTURING PROCESS OF PHTHALIC ANHYDRIDE    
PROCESS IN DETAILS    
PROCESS FLOW SHEET    
PRODUCT AND BY PRODUCT SPECIFICATION    
PLANT LAYOUT    
PRINCIPLES OF PLANT LAYOUT    
PLANT LOCATION FACTORS    
EXPLANATION OF TERMS USED IN THE PROJECT REPORT    
PROJECT IMPLEMENTATION SCHEDULES    
SUPPLIERS OF RAW MATERIALS    
SUPPLIERS OF PLANT AND MACHINERIES


APPENDIX – A :

 1.      COST OF PLANT ECONOMICS      
 2.      LAND & BUILDING                                      
 3.      PLANT AND MACHINERY                                  
 4.      FIXED CAPITAL INVESTMENT                             
 5.      RAW MATERIAL                                         
 6.      SALARY AND WAGES                                     
 7.      UTILITIES AND OVERHEADS                              
 8.      TOTAL WORKING CAPITAL                                
 9.      COST OF PRODUCTION                                   
10.      PROFITABILITY ANALYSIS                               
11.      BREAK EVEN POINT                                     
12.      RESOURCES OF FINANCE                           
13.      INTEREST CHART                                       
14.      DEPRECIATION CHART                                   
15.      CASH FLOW STATEMENT                                   
16.      PROJECTED BALANCE SHEET