PRODUCTION OF ACTIVATED CARBON FROM COCONUT SHELL

Presented by: BENJAMIN LAMASupervisor: DR JOHN WITNEDate: 18th March, 2016

MP 401: FINAL YEAR PROJECT_1ST ORAL PRESENTATION

1.0 What is Activated Carbon?• Activated carbon is a material that is produced from

any organic material with high carbon content, such as coal, coconut shell, etc.

• Activated carbon has an incredibly large surface area per unit volume, and a network of sub-microscopic pores where adsorption of foreign substance takes place.

1. INTRODUCTION

1.1 Types of Activated Carbon: Coconut shell Activated Carbon (Coconut Shell Charcoal) Wood Activated Carbon (Wood) Coal Activated Carbon (Coal)

1. INTRODUCTION

1.2 Uses of Activated Carbon: Activated carbon is widely used in all aspects of industrial

and agricultural production, such as water purification and wastewater treatment, gas purification, solvent recovery, refining of oil in chemical industry, etc

However this project will basically concentrate on the use of Activated Carbon for gold absorption in Gold Refining Processes.

1. INTRODUCTION

2.0 AIM:

• Production of Activated Carbon from Coconut Shell.• Factors affecting the adsorption capacity of Activated

Carbon.• Factors affecting the adsorption rate of activated

carbon.

2. OVERVIEW OF THE PROJECT

2.0 PROBLEM STATEMENT:

This paper will concentrate on the production of Activated Carbon from coconut shell for adsorption of Gold (Au) in solution from the Gold Refining Processes.

2. OVERVIEW OF THE PROJECT

2.1 Steps in the Production of Activated Carbon from Coconut Shell: Activated Carbon manufacturing basically divide into two major

processes:1. Dehydration and carbonization, heating materials, drying in the temperature

170℃ to 600℃ and making the original organic carbonized about 80%.2. Is to make carbonized content activation, which is finished through the

activator of steam and carbon reaction. In the Heat-sink reaction, it is mainly produce the mixed gases composed by CO and H2 to burn Heating carbonized content to proper temperature(800℃--1000℃),which is used to burn all biodegradable materials. So the activated carbon has advanced mesoporous molecular, large specific area and strong absorption capacity.

2. OVERVIEW OF THE PROJECT

2.2 Gold Refining Processes:

1. Extracted gold by amalgamation2. Extracted gold by cyanidation:

I. Heap LeachingII. Carbon in Pulp Method

2. OVERVIEW OF THE PROJECT

2.3 Factors affecting the adsorption capacity of Activated Carbon: Surface area of Activated Carbon Pore Size of Carbon Solubility of solute in aqueous solution pH Temperature

2. OVERVIEW OF THE PROJECT

2.4 Factors affecting the adsorption rate of activated carbon: Size of Activated Carbon Particle Concentration of Solute in Suspension Temperature of Solution

2. OVERVIEW OF THE PROJECT

Product groups of activated carbon: Powdered activated carbon; particle size 1-150 μm

3. CONCLUSION

Product groups of activated carbon: Granular activated carbon, particle size 0.5-4 mm

3. CONCLUSION

Product groups of activated carbon: Extruded activated carbon in pellet or spherical shape,

particle size 0.8-4 mm

3. CONCLUSION

Coconut Shell Activated Carbon:Songsang. Retrieved on 16/03/16 from:

http://activated-carbon.biz/products/granular-activated-carbon/coconut-shell-based-activated-carbon/coconut-shell-gold-activated-carbon.html Activated Carbon for Gold: Songsang, Retrieved on 16/03/16

from:http://activated-carbon.biz/products/popular-activated-carbon/activated-carbon-for-gold/132-activated-carbon-for-gold.html

4. REFERENCE

END OF SLIDE..

Any questions?