Produtos
Lcc - Líquido Da Casca Da Castanha De Caju / Cashew Nut Shell Liquid
Código: 595
Unidade:Drying Oils Business Unit
Descrição:
The cashew nut shell liquid is a byproduct of cashew nut, liquid caustic and very corrosive nature, rich in phenol and often used as the basis of phenolic resins. It is taken from the bark of chestnut during the processing of chestnuts. The percentage of liquid in the shell is around 12% and the residue is used for combustion in furnaces and boilers.
- Specification
Analysis
Results
Specification
Especific Gravity 25ºC
0,96
0.943 - 0.975
Viscosity at 25ºC
378 cps
200 - 700 cps
Moistura Content
0,4%
máx 1.0 %
Foreign Bodies
0,01%
máx 1.0 %
Total Volatile Loss
1,0%
máx 2.0 %
pH
7
6.0 Minimum
Hexamine Cure Time
13 min 25 s
13 – 19 minute
Polimerization time at 130ºC
14 min 12 s
10 – 20 minute
Hardering time at 130ºC
9 min 45 s
7.1/2 – 16 minute
TES – Tube Gel 177ºC
2 min 38 s
7 minute maximum
- Application
- - Resins- Brake Pads- Anti-Corrosive Paints- Varnishes- Insecticides- Antioxidant Additives for Automotive Engines- Clusters- Fuel Combustion in BoilersProducts obtained from the cashew nut shell liquid can be processed with organic or inorganic waste to obtain solids with the following characteristics:- Good Mechanical Strength- Good Resistance to Water and Termites- Good Index of Acoustic and Thermal Insulation- Can be Sawn, Drilled or Screwed
- Curiosities
During the second world war the Cashew Nut Shell Liquid acquired great interest in the international market due to their employment in war industry, mainly in the manufacture of brake pads and clutch plates.
Until then, India was the only exporter of it for the allied countries, but with the increasing difficulties in shipping, because of the war, the U.S. Government seek another alternative source to purchase the product.
In pursuit of this alternative, the U.S. government was informed of the existence of extensive cashew plantations in Ceara, where even existed in operating the plant for extraction of vegetable oils belonging to the Brazil Oiticica S.A., headquartered in Fortaleza.
In contact the President of this company, M. E. Marvin, who was in Washington, the U.S. government found that it would be possible to start at the plant an experimental process for the extraction of the cashew nut shell liquid, which was done with the use of primitive methods then available, with which, after several experiments managed to separate the bark of the almond, finally getting the cashew nut shell liquid.
Later, however, the Brazil Oiticica S / A was able to develop a more modern technology, introducing mechanization barking, separation and extraction of almond cashew nut shell liquid.
After the war, there was significant reduction in demand from the cashew nut shell liquid, but it is undeniable that the experience of the oil industry in the Ceara area of export during the war, particularly for the U.S. market, was of fundamental importance for the increased export activity industry processing cashew nut.
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