- Glycerine (CAS No. 56-81-5)
is a polyhydric alcohol
- Natural glycerine is obtained
as a by product in the conversion of fats and oils to fatty acids or
fatty acid methyl
esters.
- Synthetic glycerin refers to
material obtained from non-triglyceride sources.
- The starting material for
synthetic glycerine may be alkyl chloride, acrolein, propylene
oxide, sugar, polyalcohol, fats, or epichlorohydrin.
- The synthetic process from
propylene
is developed by the Shell Chemical Corporation
- Natural or native glycerine
is obtained as a by product in the conversion of fats and oils to
fatty acids or fatty acid methyl esters
- Glycerine is also produced by
catalytic vapour phase oxidation of propylene to
acrolein, followed by reaction of the acrolein with isopropanol to
yield allyl alcohol and acetone. The allyl alcohol is then oxidized
to glycerine with hydrogen peroxide
- Multiple methods exist for
the manufacture of glycerin
- The oxidation of propene to
acrolein, which is then reduced under Meerwein-PonndorfVerley
conditions to yield allyl alcohol. The allyl alcohol is then
epoxidized with hydrogen peroxide, and the resulting glycidol is
hydrolyzed to produce glycerin
- Synthetic glycerin is
obtained from propylene oxide a product of petroleum
- Epichlorohydrin is a high
volume commodity chemical used largely
in epoxy resins, although smaller quantities have, until recently,
been employed for the manufacture of synthetic glycerin
- Although several routes are
known for epichlorohydrin manufacture, most is made from propylene
and chlorine as primary raw materials in a multi-step process
- Synthetic Glycerine is used
mostly by the pharmaceutical sector for manufacturing drugs and
other pharmaceutical purposes
- The glycerine surplus stock
and at a cheap price is being used as a substitute to some other
chemicals.
- The abrupt fall in the price
of glycerol on the international market in recent years, obliged to
halt the production of synthetic glycerine from propylene
- The excess volume of
glycerol, the high price of propylene and the advantages of
producing other higher value chemicals derived from the most valued
petrochemical industry, caused a severe decline of the synthetic
glycerine industries
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Basics
-
About Glycerine
-
Organic Chemical
Manufacturing
Acrolein Production
-
Oxidation of
Propylene to Acrolein
-
Selective
oxidation of propylene to acrolein
-
Gas Phase
Oxidation
-
Vapour
phase oxidation of Propylene to Acrolein - Patent
Allyl Alcohol
-
Reduction of
Acrolein to Allyl Alcohol
Allyl Chloride
- Allyl
Chloride & Epichlorohydrin
-
Allyl Chloride production- energy
balance
-
Design of Allyl Chloride Production
Plant
-
Production - case study
-
Allyl Chloride
process - Patent
-
Production of Allyl Chloride - Patent
Processing Plants
-
Glycerine -
Pathways, mass & energy balance & Manufacturing process with flow
charts
-
Manufacturing
process
-
Glycerol
Technology options
-
Synthetic
Glycerine production - Patent information
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Epoxidation
of Allyl Alcohol with Hydrogen Peroxide
-
Epichlorohydrin
Production plant
-
The
chlorine and glycerol methods
-
Glycol
recovery unit
-
Membrane Reactor
-
Petroleum distillation column design
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Plant Layout
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Design of instrumentation for most process
control systems
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Chemical Process Control
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Cost Analyses for New Products and
Processes
Consultancy
- Consultant's brochure - Glycerine conversion
- Consultant on Epichlorohydrin
- Technical consultancy - China
- Glycerine Plant supplier
Environment &
Safety
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Material Safety Data
Sheet
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Glycerine -
msds
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MSDS -
Glycerine
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Product Safety
Assessment: Glycerine
Applications & Market scenario
-
Glycerine & the
Market
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Specification & uses
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Directory of Producers
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Product of
Indian company
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Use in pharmaceutical compounding.
-
Decline of the synthetic Glycerine Industries
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