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Crude Glycerine 80% (Malaysia Origin)

Crude Glycerine 80% (Malaysia Origin)
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Country Origin : Malaysia Appearence : Light yellow to dark brown, viscous liquid
CAS No. : 56-81-5 H.S. Code : 1520.00.00
Formula : C3H8O3 Common Names : Glycerol
IUPAC Name : propan-1,2,3-triol
Packaging : 1 @ 22 MT Flexible Tank, 22 MT / 20'FCL
  • Description
  • Application
Crude glycerine is viscous liquid with naturally sweet taste and light yellow to dark brown in color. It is the impure form of refined glycerine. Crude glycerine is derived from both natural and chemical feedstocks. Glycerine occurs in combined form in vegetable oils and fats as triglyceride. It is also found in animal fats. Crude glycerine is obtained as a byproduct form biodiesel manufacturing plant and oleochemical industries.

 

The dramatic increase in demand for transportation fuels and increased environmental concern of people have raised the emphasis for use of renewal energy for transportation fuels. Biodiesel, one of the renewal fuels that are being used as a substitute of petroleum fuels have been produced on large scale. The increase in production of biodiesel has also increased the production of its main by-product crude glycerine. Crude glycerine contains 80% of glycerol contents rest is impurities such as methanol, soap, catalyst, salts, non-glycerol organic matter and water.

 

Manufacturing Process

Crude glycerine is also produced on large scale from palm based oleochemicals industries as a by-product. But the glycerine thus produced is more pure than that of by biodiesel root. In the production of soap noodles glycerine is produced as a by-product during the saponification of oils and fats with sodium hydroxide. In the production of fatty acids derived from palm oil, crude glycerol is also produced as a by-product during esterification of palm oils.

Crude glycerine is obtained from two roots: biodiesel root and oleochemcials root.

 

1. Crude glycerine form biodiesel root: Biodiesel is fatty acid methyl ester (FAME), which is produced by transesterification of fats and oils obtained from vegetable oils such as palm oil, rapeseed oil, soyabean oil, sunflower oil, etc. Sodium hydroxide and methanol are mixed in a tank separately. Feed oil is heated upto 120oC and mixed with the catalytic mixture of sodium hydroxide and methanol. Final mixture of sodium hydroxide, methanol and feed oil is fed to a reactor at 120oC and normal pressure.

Triglyceride of fats or oils reacts with methanol in the presence of sodium hydroxide and produces fatty acid methyl ester and glycerol, this reaction is called transesterification reaction. The presence of sodium hydroxide as catalyst speeds up the replacement of glycerol with three methanol creating three molecules of fatty acid methyl ester which is a biodiesel. Now the oil is allowed to settle down and since glycerol is much denser than biodiesel, so it settle at the bottom of the separator and the glycerol is easily drawn off from bottom of the separator

 

2. Crude glycerine from oleochemcial root: During the manufacturing of soap noodles, fats or oils react with sodium hydroxide resulting in glycerol and soap base, which is a sodium salt of fatty acid. In this reaction glycerine is produced as a by-product which is more pure than that of from biodiesel process.



Pharmaceutical Industry

Glycerol is used in medical, pharmaceutical, and personal care preparations, mainly as a means of improving smoothness, providing lubrication and as a humectant. It is found in allergen immunotherapies, cough syrups, expectorants, toothpaste. Glycerol is also a component of glycerin soap.

 

Oil Industry

Polyols: crude glycerine is used to manufacture polyols, which are used as a raw material for the production of polyurethane. Crude glycerine is used an alternate to petroleum for the production of polyurethane. Polyurethanes are used to manufacture flexible and rigid foams.

 

Feed Industry

Feed ingredient: Crude glycerine is used in the production of animal feed. It is used a source of energy for animals. Crude glycerine has high absorption rate and it is a good source of energy. Once absorbed by animals, it is converted to glucose by the enzyme glycerol kinase for energy production in the liver of animals.