TRIETHYLENE GLYCOL
[EIRI/EDPR/1083] J.C.: 9727US$
INTRODUCTION
Triethylene glycol is a transparent, colorless, low-volatility, moderate-viscosity, watersoluble liquid. Under normal conditions, there is no detectable odor; under high vapor concentrations, a slightly sweet odor may be detected. It is completely miscible with water and many organic liquids. Triethylene glycol has properties similar to other glycols and may be used preferentially in applications requiring a higher boiling point, higher molecular weight, or lower volatility than diethylene glycol.
The hydroxyl groups on triethylene glycol undergo the usual alcohol chemistry giving a wide variety of possible derivatives. Hydroxyls can be converted to aldehydes, alkyl halides, amines, azides, carboxylic acids, ethers, mercaptans, nitrate esters, nitriles, nitrite esters, organic esters, peroxides, phosphate esters and sulfate esters. Triethylene glycol may be used directly as a plasticizer or modified by esterification. The solubility properties of triethylene glycol are important for many applications. End-uses for triethylene glycol are numerous.
This information is offered as a guide in planning bulk storage facilities for glycols.
Glycols are generally considered to be stable, noncorrosive chemicals with high flash points. Under ordinary conditions, all of these chemicals can be stored in mild steel vessels. For long-term storage, or if trace iron contamination and the development of color are objectionable in any of the glycols, a storage vessel lined with a baked-phenolic resin, an air-drying epoxy-phenolic resin, or a vinyl resin or a stainless steel or aluminum tank is suggested. Zinc or galvanized iron is not recommended, and copper or copper alloys may cause product discoloration. This information is offered as a guide in planning bulk storage facilities for glycols. Glycols are generally considered to be stable, noncorrosive chemicals with high flash points. Under ordinary conditions, all of these chemicals can be stored in mild steel vessels. For long-term storage, or if trace iron contamination and the development of color are objectionable in any of the glycols, a storage vessel lined with a baked-phenolic resin, an air-drying epoxy-phenolic resin, or a vinyl resin or a stainless steel or aluminum tank is suggested. Zinc or galvanized iron is not recommended, and copper or copper alloys may cause product discoloration. This information is offered as a guide in planning bulk storage facilities for glycols. Glycols are generally considered to be stable, noncorrosive chemicals with high flash points. Under ordinary conditions, all of these chemicals can be stored in mild steel vessels. For long-term storage, or if trace iron contamination and the development of color are objectionable in any of the glycols, a storage vessel lined with a baked-phenolic resin, an air-drying epoxy-phenolic resin, or a vinyl resin or a stainless steel or aluminum tank is suggested. Zinc or galvanized iron is not recommended, and copper or copper alloys may cause product.
COST ESTIMATION
Plant Capacity 45 TON/Day
Land & Building (10,000 sq.mt.) US$ 49.95 Lac
Plant & Machinery US$ 4.72 Lac
Working Capital for 3 Months US$ 9.91 Lac
Total Capital Investment US$ 67.63 Lac
Rate of Return 65%
Break Even Point 24%
CONTENTS
INTRODUCTION
PRODUCTION OF TRI ETHYLENE GLYCOL
MANUFACTURING PROCESSES
ETHYLENE CARBONATE PROCESS:
HALCON ACETOXYLATIN PROCESS:
TEIJIN OXYCHLORINATION PROCESS:
UNION CARBIDE SYNGAS PROCESS:
HYDROLYSIS OF ETHYLENE OXIDE:
CHEMISTRY OF THE REACTION:
PROCESS DESCRIPTION OF ETHYLENE GLYCOL PLANT
APPLICATIONS
MARKET SURVEY
ASIA IS THE LARGEST CONSUMER OF ETHYLENE OXIDE AND ETHYLENE GLYCOL
THE PRODUCTION OF ETHYLENE OXIDE AND TRIETHYLENE GLYCOL
METHOD FOR PRODUCING HIGHLY PURE TRIETHYLENE GLYCOL
METHOD FOR PRODUCING TRIETHYLENE GLYCOL
EXAMPLE 1
(1) ETHYLENE CARBONATION REACTION STEP
(2) CONSUMPTION OF UNREACTED ETHYLENE OXIDE AND PURIFICATION OF TRIETHYLENE GLYCOL
EXAMPLE 2
EXAMPLE 3
COMPARATIVE EXAMPLE 1
COMPARATIVE EXAMPLE 2
TRIETHYLENE GLYCOL PROCESS
(ABSORPTION STEP OF ETHYLENE OXIDE (STEP 1))
(CARBONATION STEP OF ETHYLENE OXIDE (STEP 2))
(STEP FOR RECOVERING CARBON DIOXIDE)
(HYDROLYSIS STEP OF ETHYLENE CARBONATES (STEP 3))
(TRIETHYLENE GLYCOL RECOVERY STEP)
EXAMPLE 1
(1) ABSORPTION OF ETHYLENE OXIDE
(2) ETHYLENE CARBONATE CONVERSION REACTION
(3) REMOVAL OF UNREACTED CARBON DIOXIDE GAS
(4) HYDROLYTIC REACTION
(5) RECOVERY OF THE REACTION PRODUCT
(6) RECYCLING OF THE ABSORBING SOLUTION
PREPARATION OF TRIETHYLENE GLYCOLS FROM ETHYLENE OXIDE
EXAMPLE
RECOVERY OF GLYCOLS FROM MIXED GLYCOL COMPOSITION BY DISTILLATION WITH ACID TREATMENT
EXAMPLE I
EXAMPLE II
ADDRESSES OF CHEMICAL SUPPLIERS/MANUFACTURERS
ETHYLENE
MEDICAL OXYGEN
TRIETHYLENE GLYCOL
SUPPLIER OF PLANT & MACHINERY
DISTILLATION COLUMNS
COOLING TOWERS & HEAT EXCHANGERS
REACTION VESSEL
DISTILLATION EQUIPMENT
CONTINUOUS EVAPORATOR
LABORATORY REACTORS
CIRCULATING PUMPS
BUBBLE CAPS MANUFACTURERS & EXPORTERS
AIR COOLED CONDENSER
VAPOUR LIQUID SEPARATOR MANUFACTURERS & EXPORTERS
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)
