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Paraxylene
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- p-Xylene is an
aromatic hydrocarbon, based on benzene with two methyl substituents. The
“p” stands for para, identifying the location of the methyl groups
as across from one another.
- p-Xylene is an isomer
of xylene. Other isomers include o-xylene and m-xylene. p-Xylene is used
on a large scale for the
manufacture of terephthalic acid for polyester. Its polymer is known as
Parylene.
- p-Xylene is produced
by catalytic reforming of naphtha (a petroleum derivative) and separated
in a series of distillation,
adsorption or crystallization and reaction processes from m-xylene, o-xylene
and ethylbenzene. Its melting point is the highest among this series of
isomers, but simple crystallization does not allow easy purification due
to the formation of
eutectic mixtures.
- Paraxylene is a
colorless, sweet-smelling liquid at room temperature. Paraxylene is a
flammable chemical. Paraxylene is not considered a highly reactive
chemical. It occurs naturally in petroleum and coal tar.
- Conventional
paraxylene technology is based on the isomerisation of mixed xylenes.
High purity product can be obtained using crystallisation or selective
adsorptive separation.
- Paraxylene is
primarily used as a basic raw material in the manufacture of
terephthalic acid (TPA), purified terephthalic
acid (PTA) and dimethyl-terephthalate (DMT). TPA, PTA and DMT are used
to manufacture polyethylene terephthalate (PET)
saturated polyester polymers. Polyesters are used to produce fibers
,films and plastic bottles. A small amount of PX is used as a solvent
and to produce di-paraxylene and herbicides.
- The PX market has
seen strong growth driven by increasing PTA consumption in polyester
manufacture.
- Global demand for PX
has been growing strongly and this is expected to continue. Tecnon
OrbiChem expects world consumption to grow at an average of 7%/year in
the 2008-2013 period.
- In the most recent
incident, the municipal government of Dalian halted operation of a
paraxylene (PX) plant - Fujia-Dahua PX Plant - and ordered its removal.
The decision came after large tides destroyed the plant's flood bank and
swept away tanks of dangerous chemicals.
- The para-xylene
industry however showed unprecedented volume growth in 2010, growing by
2.8 million tons, a full ten percent growth from 2009.
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General Information
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Paraxylene General Info
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Paraxylene Basic Info
Company
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Company
from USA
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Company from Israel
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Company from Asia
Plant
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Plant from India
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Plant from USA
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Plant from Korea
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Plant from
Thailand
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Plant from USA
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Plant
from South Korea
Consultancy
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Consultancy from USA
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Consultancy
from UK
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Consultancy from England
Data
Sheet
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Mixed Xylene
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p-Xylene
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para-Xylene
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Paraxylene
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Xylene, Para
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Paraxylene from USA
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Para-xylene from Israel
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P-Xylene from USA
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Para Xylene from India
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Para-xylene from UK
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p-Xylene from USA
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ParaXylene Safety
Data
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Para-Xylene from USA
Product
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Para-Xylene
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Paraxylene
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Xylene
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Paraxylene from USA
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Para-Xylene from Israel
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Para Xylene from USA
Process
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Process for High
Purity Paraxylene Production
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Modeling and Control System Design of a Crystallizer Train for
Para-xylene Production
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Base Aromatics Production
process
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Aromatics & Down
Stream Process
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Badger/Niro
Paraxylene Crystallization Process
Market
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Global Paraxylene Market
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Paraxylene Uses and Market Data
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Paraxylene Prices and Pricing
Information
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Paraxylene Highlights
Report
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Capturing Opportunities for Para-xylene Production
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Developments in para-Xylene Technology
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Safe Handling
and Storage of
Paraxylene -
Indian Petrochemical
Industry - Challenges and Opportunities
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Result of Proficiency
Test ortho- and Para-Xylene
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Growing protest
against Chinese chemical plants
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Construction of
Paraxylene Production Complex at JSC
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Management’s
Discussion and Analysis (MD&A) and Operating Results for the
Three-Month Period Ended
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Paraxylene Production
Plant Construction at JSC Mozyr Refinery, Republic of Belarus
Toxicity
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Paraxylene Toxicity
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Paraxylene Basic Hazard Info
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Application
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Virtual state scattering with cold electrons: para-xylene
and para-difluorobenzene -
Paraxylene -
feedstock for PTA
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Paraxylene for PTA
Production
Effect
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Effects
of plasma polymerized para-xylene intermediate layers
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Determination of the effect
of p-xylene on the growth of the fresh water green alga Selenastrum
capricornutum.
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Effects of methyl
substitution on
room-temperature chemisorption of para-xylene on Si(1 0 0)2 · 1 and
modified surfaces: a thermal
desorption and DFT study
Patent
- Paraxylene recovery with
Zeolite adsorbent
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Production of Paraxylene
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Process for improved
recovery of paraxylene
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Process for
recovering paraxylene utilizing ammonia absorption refrigeration
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Paraxylene Recovery
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Energy efficient process for
producing high purity paraxylene
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Process for selectively
producing paraxylene
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Separation of Paraxylene
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Crystallization process for
purification of paraxylene
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Method for rejuvenating solid
paraxylene adsorbent
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Process for co-production of
metaxylene and paraxylene
- Seeding and filter aid technique for
paraxylene production
Analysis
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Aerobic Oxidation of para-Xylene in Sub- and Supercritical Water
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Meta and
para-Xylene Oxidation
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Catalytic Para-Xylene Maximization. V. Toluene Methylation with Methanol
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Hybrid
purification of Paraxylene
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Hysteresis of sorption isotherm of multiwall carbon nanotube in
paraxylene
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Selective
Oxidation of para-Xylene to Terephthalic Acid
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Para-Xylene Oxidation:
Experi-mental Results in a JSR
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Simultaneous Biodegradation of
p-Xylene
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Friedel-Crafts Alkylation of
p-Xylene -
Distinction of
ortho- and para-
Xylene by Femtosecond-Laser Mass Spectrometry
Production
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Simulated moving bed reactor for paraxylene production
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Para-xylene
Production
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Maximizing Paraxylene
Production
with ParamaX
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Refinery
Petrochemical Integration
Alternate Routes to Produce
Paraxylene
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Improved Paraxylene production with Simulated moving bed reactor
Synthesis
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MINLP Model for Synthesis of
Paraxylene Separation Processes Based on Crystallization Technology
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Optimal synthesis of p-xylene separation processes based on
crystallization technology
Suppliers
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Suppliers for Paraxylene
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Paraxylene Suppliers List
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