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MONOCKERfl INC.
POST OFFICE SOX 486 ATON ffOUOt TELCAHOHC
*04 14|.M1
GEISMAR.; IOUISIANA -70734
OUT^HTOWM telephone j.99*
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October 14, 1971
RLS
Mr. 6. A. Anderson UNIROYAL Chemical Division of UNIROYAL, Inc. Naugatuck, Connecticut 06770
Mr. J. V. Lynn Borden, Inc. 50 West Broad Street Columbus, Ohio 43215
Gentlemen:
Subject: Vinyl Chloride Monomer Specifications and Typical Analyses
For your information I would like to give you an updated look at Monochem
monomer quality with a few comments.
Typical Production______
Contaminant
Specification
New Catalyst
Old Catalyst
Acetaldehyde
5 ppm max.
Acidity as HC1
10 ppm max.
Appearance
C&C
Iron
0.5 ppm max.
Sulfur
3 ppm max.
Water
100 ppm
Acetylene
2 ppm max.
Isobutane
No spec.
N-butane
No spec.
Propadiene
5 ppm max.
Butene-1
No spec.
Methyl acetylene 2 ppm max.
Butadiene
6 ppm max.
Methyl chloride
No spec.
Vinyl acetylene
0.3 ppm max,
2 chloropropene-1 No spec.
Methane
No spec.
Ethane or ethylene No spec.
Propane
No spec.
Propylene
No spec.
Butene-2(trans.) No spec.
Butene-2(cis.)
No spec.
Ethyl chloride
No spec.
0.1 0.1 CSC 0.03 1.0
-24-30 ppm-
ND -1-1 1/2 ppm-5-10 ppm--
ND 2 ppm 1 ppm 1 ppm 0.5 ppm ND ND ND ND ND ND ND ND ND
0.1 0.1 CSC 0.03 1.0
ND
ND 10 ppm 2 ppm 4 ppm 0.5 ppm ND ND ND ND ND ND ND ND ND
c
30 00 C<0O0)
We have on occasion reported the presence of vinyl acetylene; we now know
that this component is not vinyl-acetylene but is 2-chloropropene-l.
A slight breakthrough in analytical technique has brought this to o
attention.
pois
Dr A*SAFETy AND
iiNT protection
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Mr. 6. A. Anderson Mr. J. V. Lynn
October 14, 1971
You will notice that catalyst age; i.e., higher catalyst temperature* causes a slight downgrading of the monomer in that butene-1, methyl acetylene and butadiene all tend to be in higher concentrations and therefore more difficult to remove. .Butane and iso-butane indicate the degree to which
we are pushing the acetylene plant.
We now have recharged the reactors so the monomer we are now producing will be as shown under the new catalyst column with a slight downgrading toward the old catalyst column over a two-year period.
cc: Mr. J. S. Bellecci
jadfc R. Little Vice President
in Charge of Operations
URL 18397
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