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PRODUCTS
PRODUCED BY
IPCI
TECHNOLOGIES
Each of IPCI's continuous hydrotreating technologies - hydrogenation of
sugars to sugar alcohols, and hydrogenolysis of sugar alcohols to polyols - has
capability to produce a range of products in its applicable field.
IPCI Hydrogenation produces one or
more sugar alcohols, depending on feed sugar used, process conditions applied,
and reactor system configuration. IPCI
Hydrogenolysis produces a range of polyols, in varying amounts,
depending largely on catalyst used, process conditions selected,
design of the reactor system, and capability of the separation system.
For hydrogenation, the sugar
alcohols in Table 1 below are potential products.
IPCI experience is primarily in producing sorbitol and mannitol.
However, production of lactitol, xylitol or malt sugar alcohols by IPCI methods has been initially
verified.
Table 1. - Sugar Alcohols
Which Can be Produced by IPCI HydrogenationTechnology
|
Sugar Alcohol
|
Formula
|
Manufactured From:
|
Typical Uses
|
|
Erythritol
|
C4H10O4
|
Starch
|
Therapeutic
uses.
|
|
Xylitol
|
C5H12O5
|
Xylose
from wood sulfite pulping liquors, corn cobs, plant materials
|
Oral
and intravenous nutrient, anti-caries products, dietary foods.
|
|
Sorbitol
|
C6H14O6
|
Glucose
from corn primary; invert sugar and also from simultaneous hydrolysis and
reduction of starch, cotton cellulose, or sucrose.
|
Chemical
intermediate, humectant, dietary foods, candy manufacture, aid in
pharmaceutical preparations, food texturizer, cosmetics, toothpaste,
metal sequestrant.
|
|
Mannitol
|
C6H14O6
|
Glucose
from corn primary, fructose, invert sugar by hydrogenation; also extracted
from plant exudates and seaweed
|
Excipient
and diluent in pharmacy, preparation of resins and plasticizers, dietary
foods, food conditioner and additive, explosive preparations.
|
|
Lactitol
(derived
from a di-saccharide)
|
C12H24O11
|
Lactose,
primarily from cheese whey
|
Sweetener,
viscosity increaser in foods, dietary foods, ruminant food additive and
medication.
|
|
Maltitol
(derived
from a di-saccharide)
|
C12H24O12
|
Maltose
from high-maltose corn syrups
|
Sweetener,
viscosity increaser in foods, dietary foods, animal medicines and food
additives.
|
Table 2 below lists polyols which are typically produced by IPCI's
hydrogenolysis technology. Ethylene glycol, propylene glycol and glycerin
are the primary products of this technology, and the proportion of each of these
can be modified to a considerable extent by choice of process conditions and
catalyst. Those hydrogenolysis
products produced in smaller quantities - the light alcohols, butanediols,
tetrahydrofuran dimethanol and isosorbide - all have markets, but can be
suppressed to a certain extent if desired.
IPCI has technology for separating all of these latter compounds (isosorbide
separation from IPCI hydrogenolysis reactor product has not yet been explored),
or they can be recycled back to the process.
IPCI considers tetrahydrofuran dimethanol and isosorbide to be specialty
chemicals.
Table 2.
- Typical Products of IPCI Continuous Hydrogenolysis Technology
|
Compound
And
IPCI short designation
|
Formula
|
MW
|
Normal
Boiling
Point
(oC)
|
Typical
%
Seen
in IPCI Product
(% of organic content)
|
Representative
Uses
|
|
Ethylene Glycol (EG)
|
C2H6O2
|
62.07
|
197.2
|
10-30%
|
Antifreeze, polyester synthesis, solvent, organic
syntheses
|
|
Propylene Glycol
(PG)
|
C3H8O2
|
76.09
|
189
|
20-40%
|
Antifreeze, unsaturated polyester resins,
pharmaceuticals, cosmetics, paints, pet food
|
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Glycerin
(GLY)
|
C3H8O3
|
92.09
|
290
some dec.
>200oC
|
8-30%
|
Drugs, toothpaste, cosmetics, pharmaceuticals, tobacco,
alkyd resins, polyether polyols, explosives
|
|
1,2-Butanediol
(1,2-BDO)
|
C4H10O2
|
90.12
|
192
|
<1-6%
|
Not commercially important at present as commodity
chemical.
|
|
1,3-Butanediol
(1,3-BDO)
|
C4H10O2
|
90.12
|
204
|
<1-3%
|
PET resins. Not
large production
|
|
1,4-Butanediol
(1,4-BDO)
|
C4H10O2
|
90.12
|
230
|
<1-6%
|
PBT and PET resins, Tetrahydrofuran manufacture,
polyurethanes, organic syntheses, solvent. Large production.
|
|
2,3-Butanediol
(2,3-BDO)
|
C4H10O2
|
90.12
|
184
|
<1-3%
|
Not commercially important at present as commodity
chemical
|
|
Methanol (MeOH)
|
CH4O
|
32.04
|
64.65
|
<1-3%
|
Solvent, organic synthesis, formaldehyde and acetic
acid production
|
|
Ethanol (EtOH)
|
C2H6O
|
46.07
|
78.5
|
<1-7%
|
Solvent, organic syntheses, beverages, pharmaceuticals,
lotions, coatings and inks
|
|
Iso- and
n-propyl alcohols (PA's)
|
C3H8O
|
60.09
|
82 (ipa)
97.8 (npa)
|
<1-5%
|
Solvent, organic syntheses
|
|
Tetrahydrofuran dimethanol (THFDM)
|
C6H12O3
|
132.2
|
265
|
<1-7%
|
Not commercially important at present, Furan products
supplier indicates keen interest for use as intermediate material
|
|
Isosorbide
|
C6H10O4
|
92.09
|
Unk.
|
<1-6%
|
Small pharmaceutical use as nitrate.
Large potential use in polyesters.
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