Production of Hydrophobic Expanded Perlite

1. PEARL OF THE INDUSTRY:
HYDROPHOBIC EXPANDED PERLITE

2. CONTENTS
1. GENERAL INFORMATION
2. PRODUCTION OF HYDROPHOBIC PERLITE
3. MARKET ANALYSIS
4. ESTABLISHMENT PLACE
5. CONTRIBUTIONS TO THE TURKISH
ECONOMY
6. ENVIROMENTAL IMPACTS
7. REFERENCES

3. 1.GENERAL INFORMATION
1.1. The Aims of The Project
• To make HYDROPHOBIC expanded perlite from
expanded perlite
• To obtain a material with improved
properties(e.g.better heat insulator, filter aid, better
constuction material)

4. Volcanic Rock Perlite

5. 1.2 What Is Perlite?
Perlite is
naturally occuring mineral
silliceous volcanic rock
pearl-like luster

6. 2. PRODUCTION OF HYDROPHOBIC
EXPANDED PERLITE
Perlite
Expanded
Perlite
Hydrophobic
Perlite

7. PROCESS 1: EXPANDED PERLITE

8. Raw perlite is heated rapidly about 700-1200°C.
Perlite is ‘popped’ like a corn.
The contained water is converted to steam.
Volume is increased to 20 times of its original
volume.

9. Expansion Furnace

10. PROCESS-2 : HYDROPHOBIC
EXPANDED PERLITE

11. Hydrophobicity from the Nature

12. Especially two main methods were tried with
Alkoxysilane and Aqueous silane emulsions
Expanded
Perlite
Buffered
Silane
Emulsion
Hydrophobic
Expanded
Perlite

13. • The method that choosen for this project is Aqueous
Silane Emulsion.
• Because the properties nonflammable and nontoxic
are very important and good properties for nature and
environment.

14. Silane is
• Most appropriate silane is
polymethylhydroxysilane(PMHS).
• PMHS is an inexpensive, less toxic, air and moisture
stable liquid.pH is kept around 6-8.

15. Procedure
2.5 grams of the emulsion of PMHS(40 wt% ) ,292 grams of
deionized water which contains 6-acetoxy-2,4-dimethyl-m-dioxane
biocide in an amount to provide 0.15 percent ultimate
concentration and 0.10% buffering agent(sodiumbicarbonate) is
added to 30 ml of deionized water and allowed to mix for 30
minutes.
100 grams of expanded perlite is charged in twin shell mixer.The
mixed emulsion solution is slowly added over a period of 2 minutes
to the expanded perlite in the twin shell while mixing. Mixing is
continued for 10 minutes to apply the emulsion solution to the
expanded perlite.

16. The treated expanded perlite is removed
from the twin shell, is placed in an
aluminum pan, and is dried in a forced air
oven for 2 hours at 100° C. to remove the
residual water.
The treated expanded perlite is tested for
hydrophobicity
Water drops remain on the surface of the treated
expanded perlite for longer than 30 minutes in the
water drop test. In the water solubility test, the
mixture begins to separate 10 to 15 minutes after
mixing. After one minute, the treated expanded
perlite forms a layer on top of the water, and the
water layer is clear with no evidence of suspended
particles

17. 3.MARKET ANALYSIS
Table 1.World Perlite Reserves ( Million Ton)
Reserve Total
Reserve
Cities
Total
Total
Total
Worldwide Total (rounded)

18. Perlite Reserves in Turkey

19. Largest Hydrophobic Perlite Producers
in World
• Perlite Hellas Company in Greece
• Shijiazhuang Kedahua Imp. & Exp. Trade Co.,
Ltd. in Hebei,China
• Tianjin Incom Science & Technology Co., Ltd.
in China

20. Main markets and Total Revenue in
the World
Main Markets Total Revenue (%)
Domestic Market 40.00%
Africa 15.00%
Mid East 8.00%
Oceania 6.00%
Eastern Europe 5.00%
North America 5.00%
Southeast Asia 4.00%
Central America 3.00%
South Asia 3.00%
Eastern Asia 3.00%
South America 2.00%
Western Europe 2.00%
Southern Europe 2.00%
Northern Europe 2.00%
Total Annual Sales Volume: Above US$100 Million
Export Percentage: 51% - 60%

21. Cost of Hydrophobic Perlite
The price for hydrophobic expanded perlite is
US $ 21 - 34 / Cubic Meter.

22. Application Areas
Plaster in exteriors
Cleaning oil spillages
Waterproofing requirements
of roof, walls, basement
Water, heat, noise and
fire insulation

23. 4.ESTABLISHMENT PLACE
4.1 Education Level
İl Okuma yazma durumu Toplam Erkek Kadın
İzmir Okuma yazma bilmeyen 70.114 12.711 57.403
Okuma yazma bilen 3.602.148 1.814.180 1.787.968
Bilinmeyen 54.320 30.454 23.866
Toplam 3.726.582 1.857.345 1.869.237
Table 3.1.1.1: Literate Condition in İzmir

25. 4.3 Economic Condition
• İzmir is the second largest port city of Turkey.
• 6.5% of exports of the country and 4.8% of
country’s imports are made from İzmir.
• The largest port of exportation of Turkey is in
İzmir. International companies number
increases.

27. 5.Contributions to the Turkish
Economy
• New employment opportunities
• Power saving
• Improvement of the sub-indusries
• Exportation

28. 6. Environmental Impacts
• Environmental friendly
• Cleans petroleum residues in the sea
• Recyclable
• Loose fill, plaster can be reused

29. 7. REFERENCES
• http://www.mineralseducationcoalition.org/minerals/perlite
• http://marmara.kimyager.org/media/KimyagerDern.B%C3%BClten
10%20(2013).pdf
• http://www.google.com/patents/US4889747
• https://perlite.org//

30. Thank You 
Group Members :
Fatma Karslıoğlu
Pelin Karşılı
Özge Köylü
John Kiiza