Interwing Engineering Co., Ltd

SOAP PLANTS

Interwing offers soap plans as a bi-product and stand alone technology.   Soap is formed by the action of alkalis on fats or their fatty acids and consists essentially of sodium or potassium salts of fatty acids.  In the broadest sense soap may be termed as a compound of higher fatty acids (C₈-C₂₂) with metallic base.        

Soaps may be divided into three classes:       

1.      Solid or hard soaps.

2.      Soft and semi-fluid soaps.

3.      Liquid soaps.

Solid or Hard Soaps. – They are usually made with caustic soda from harder fats (or their fatty acids),  e.g., coconut oil, palm kernal oil, mowah oil hydrogenated oils, etc., and from non-drying oils, e.g., olive oil, palm oil, groundnut oil, castor oil, etc.  They are finished in the form of bars or tablets, chips and powders.

Soft and Semi-Fluid Soaps. – They are chiefly made with caustic soda from liquid fats (or their fatty acids), e.g., cottonseed oil, sesame oil, linseed oil, etc.

Liquid Soaps. – They are usually solutions of potash soaps made from coconut oil.

Raw Materials. – The main raw materials employed in the manufacture of soaps are: -

                                    1.      Fatty Oils (or their fatty acids)

            2.      Alkalis.

Fatty Oils. – The important vegetable fatty oils employed in the manufacture of soaps are, coconut oil, palm kernal oil, mowrah oil, olive oil, palm oil, groundnut oil, castor oil, cottonseed oil, sesame oil, linseed oil, etc.

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Last modified: 07/09/03