Industry Overview
Cashew Nut Shell Liquid (CNSL) is a valuable by-product obtained during the processing of cashew nuts. The cashew shell, which is approximately 1/8 inch thick, contains a soft honeycomb structure filled with a dark reddish-brown viscous liquid known as the pericarp fluid. This liquid is widely recognized as an economical and effective source of unsaturated phenolic compounds, making it an important raw material for numerous industrial applications.
CNSL is recovered from cashew shells during the processing of raw cashew nuts, typically through steaming. The extracted liquid can be further processed by decarboxylation to produce phenolic compounds suitable for industrial use. Natural CNSL is primarily composed of approximately 70% anacardic acid, 18% cardol, and 5% cardanol. Heat treatment converts anacardic acid into cardanol, and subsequent distillation increases the concentration of cardanol, which is the principal commercial component of technical CNSL.
Due to its unique chemical composition, CNSL has extensive applications in polymer-based industries. It is widely used in the manufacture of friction linings, paints, varnishes, laminating resins, rubber compounding resins, cashew cements, polyurethane polymers, surfactants, epoxy resins, foundry chemicals, and various chemical intermediates. It has also been used for many years in friction materials, where it contributes to both binding performance and friction enhancement. Its versatility continues to provide opportunities for the development of specialized, tailor-made polymer products across a broad range of industrial sectors.
Cost Estimation
| Particular | Value |
|---|---|
| Plant Capacity | 15000 kg/Day |
| Land & Building (4000 sq.mt.) | Rs.1.09 Cr |
| Plant & Machinery | Rs. 1.07 Cr |
| Working Capital for 1 Month | Rs. 2.16 Cr |
| Total Capital Investment | Rs. 4.40 Cr |
| Rate of Return | 66% |
| Break Even Point | 42% |
Content Index
- CNSL EXTRACTION
- TREATMENT TO REDUCE DIHYDRIC PHENOLS
- CASHEW NUT SHELL LIQUID MARKET SIZE
- VARIETIES
- PLANTING MATERIAL
- PLANTING MATERIAL
- METHOD AND SEASON OF PLANTING
- APPLICATION OF MANURES AND FERTILIZERS
- WEEDING
- MULCHING
- TRAINING AND PRUNING
- IRRIGATION
- VARITAL WEALTH
- PROPERTIES
- USES & APPLICATION
- B.I.S. SPECIFICATION
- MARKET SURVEY
- INDIAN DEMAND
- KEY MARKETS AND EXPORT DESTINATIONS
- CASHEWNUT PRODUCTION IN INDIA
- CASHEW NUT SHELL LIQUID
- MANUFACTURING PROCESS
- TYPICAL PROPERTIES OF RAW AND CHEMICALLY TREATED CNSL
- PROPERTIES AND COMPOSITION
- MAJOR COMPONENTS OF CNSL
- TYPICAL PHENOLIC COMPOSITIONS OF NATURAL AND TECHNICAL CNSL (WT%)
- FINAL PRODUCTS
- QUALITY CONTROL
- TYPICAL PROPERTIES OF RAW AND CHEMICALLY TREATED CNSL
- INDIAN MANUFACTURING INDUSTRY
- INTRODUCTION
- INVESTMENT
- GOVERNMENT INITIATIVES
- KEY REGULATIONS AND POLICIES IN INDIA
- GENERAL CORPORATE COMPLIANCE
- LIST OF DOCUMENTS REQUIRED TO GET FOR LICENSES
- DOCUMENTS:
- PRINCIPLES OF PLANT LAYOUT
- PLANT LOCATION FACTORS
- EXPLANATION OF TERMS USED IN THE PROJECT REPORT
- UTILITIES
- PLANT & MACHINERY MANUFACTURER
- VESSEL SUPPLIERS
- LABORATORTY EQUIPMENT MANUFACTURERS
- D.G. SET MANUFACTURERS & SUPPLIERS
- ELECTRICAL PANEL & BOARD MANUFACTURERS
- WEIGHING BRIDGE MANUFACTURER
- ORGANISATION CHART
- PLANT LAYOUT
- PROJECT IMPLEMENTATION SCHEDULES
- IMPLEMENTATION SCHEDULE
- PROPOSED IMPLEMENTATION SCHEDULE 12 MONTHS
- ENVIRONMENTAL AND SOCIAL IMPACT
- COMMUNITY BENEFITS
- EFFLUENT TREATMENT AND DISPOSAL
- WASTE TREATMENT
- EQUIPMENT REQUIREMENT
- AVAILABILITY OF WATER ITS SOURCE, ENERGY/POWER REQUIREMENT AND SOURCE
- QUANTITY OF WASTES TO BE GENERATED (LIQUID AND SOLID) AND SCHEME FOR THEIR MANAGEMENT/ DISPOSAL.
- EFFLUENT TREATMENT BY ELECTROLYSIS
- NOISE MANAGEMENT
- SOLID WASTE MANAGEMENT
- HAZARDOUS WASTE MANAGEMENT
- SCHEMATIC REPRESENTATIONS OF THE OVERALL FEASIBILITY AND ENVIRONMENTAL ASSESSMENT PROCESS
- PLANT LOCATION
- RAINWATER HARVESTING PLAN
- ADVANTAGES OF RAINWATER HARVESTING:
- WATER BALANCE
- DESIGNING OF RAINWATER HARVESTING SYSTEM:
- EXECUTION OF RAINWATER HARVESTING THROUGH RECHARGE BORE WELL:
- RECHARGE SHAFT
- DESIGN OF RECHARGE SHAFT
- RECOMMENDATION
Appendix
- 01. PLANT ECONOMICS
- 02. LAND & BUILDING
- 03. PLANT AND MACHINERY
- 04. OTHER FIXED ASSETS
- 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)
Frequently Asked Questions
Cashew Nut Shell Liquid (CNSL) is a natural phenolic liquid extracted from the shell of cashew nuts. It is obtained during cashew processing and serves as a valuable industrial raw material because of its unique chemical composition. After suitable processing, CNSL is used in the manufacture of resins, coatings, friction materials, adhesives, surfactants, and several specialty chemicals, making it an important value-added by-product of the cashew industry.
CNSL is extracted by processing cashew shells, commonly through steaming or heat treatment. The heat releases the viscous liquid contained within the shell's honeycomb structure. The extracted liquid can then undergo additional processing, including decarboxylation and distillation, to obtain technical CNSL with a higher concentration of cardanol for industrial applications.
CNSL is widely used in polymer and specialty chemical industries. It is an important raw material for friction linings, paints, varnishes, laminating resins, rubber compounding resins, epoxy resins, polyurethane products, surfactants, foundry chemicals, and chemical intermediates. Its chemical properties make it suitable for manufacturing durable and performance-oriented industrial products.
Natural CNSL mainly contains anacardic acid, cardol, and cardanol. According to the report, anacardic acid is the predominant component, while cardol and cardanol are also present in significant quantities. During thermal processing, anacardic acid is converted into cardanol, which becomes the primary component of technical CNSL used in industrial manufacturing.
CNSL is valued because it is a renewable and economical source of phenolic compounds. Its versatility allows manufacturers to produce a wide range of polymer-based and specialty chemical products with desirable mechanical and chemical properties. As a by-product of cashew processing, it also contributes to better utilization of agricultural resources and value addition within the cashew industry.
A CNSL production project should evaluate raw material availability, processing technology, plant layout, utilities, environmental management, regulatory compliance, quality control, and market demand. Financial feasibility, equipment selection, waste management, and implementation planning are also important considerations to support efficient and sustainable plant operations.
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