Tuesday 12 August 2008

Base Oil, Lubricant

LUBRICANT BASE OIL

Lubricant oils are produced from Parafinic & Naphtenic Stock.

3 basic types of crude oil :
> 1. Parafinic
> 2. Iso-Parafinic Napthtenic
> 3. Aromatic, Asphaltic

Lubricant formulation guide :
1. Additives
2. Lube base oil 80-90 %

Lube base divided into 5 parts :
1. Group 1
VI ( Viscosity Index = the lower the VI, the larger a change in viscosity with
temp. changes ) = 80-120, component Lube base > 90 %, Sulfur <>
 
2. Group 2
VI = 80-120, component Lube base oil > 90 %, Sulfur <>
 
3. Group 3
VI > 120, component Lube base oil > 90 %, sulfur <>
 
4. Group 4
PAO ( Poly Alpha Olefin ), Lube base oil mostly used for car race.
PAO hasve had superior performance characterictic such as Viscosity Index
( VI ), Pour Point,
Volatility and Oxidation stability that it could not be achieved by convention
mineral oil. With modern base oil manufacturing, VI, Pour Point, Volatility &
Oxidation stability all can be independently controlled.
 
5. Group 5
Exlude Group I - IV.
Notes : Group I & II as conventional based oil.
Group III-V as synthetic based oil.
Dubase Oil as Group III stock is available, please contact me.
Succes for you all,


Michael S. Thang
chemical_info@yahoo.com

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