Environmental Engineering Reference
In-Depth Information
table .
Case study using the xl insurance database: Fullerenes [, ]
Risk analysis step
analysis
1..Identify.process.and.materials
Production.in.laminar.benzene-oxygen.
argon.lame;.proprietary.process.
modiied.from.reference.used.for.mass.
production.
2..Characterize.
materials.and.
processes
A...Collect.and.characterize.data.
on.material.properties
Data.compiled.for.benzene,.toluene,.
argon,.nitrogen,.oxygen,.soot,.activated.
carbon,.carbon.dioxide,.water.
B...Deine.manufacturing.
processes,.identify.
characteristics.that.determine.
risks
1...Laminar.lame.of.C
6
H
6
.and.O
2
,.
diluted.with.Ar..C:O.ratio.=.0.760..P.
=.12-100.torr..Flame.operated.53-170.
minutes.
2...Sample.of.condensable.compounds.
and.soot.taken.via.quartz.probe.
3...Sample.weighed.and.extracted.with.
C
7
H
8
,.then.iltered.and.concentrated.
by.evaporation.under.N
2
.stream.
4...Concentrated.solution.of.C60.and.C70.
in.toluene.separated.on.activated.
carbon.
5...C60.iltrate.concentrated.with.rotary.
evaporation.and.drying.to.99%.pure.
product.
3..Determine.relative.
risk
A..Qualitative.Assessment
Materials.with.very.high.risk.include.
benzene.(toxicity),.soot.(emissions).
B...XL.Insurance..
Database
..
Methodology
See.summary.of.results.in.Figure.11.2.
