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New
development of catalyst gauze
Ammonia oxidized to nitrogen oxide is one of the major steps of
nitric acis production, platinum or platinum rhodium catalyst gauze
has been applied to production process of nitric acid and hydrocyanic
acid since 1909. Till now. it has had a history of more than ninety
years, the gauze experienced the leap and change form woven gauze
to knitted gauze, weft knitted gauze to warp knitted gauze., it
greatly promoted the development of nitric acid industry, compared
with woven gauze.
knitted gauze has larger effective surface area, optimum pressure
drop. higher conversion .lower platinum lost reduced gauze inventory.
it effectually raised efficiency of nitric acid production, warp
knitted gauze is a kind of high technology production developed
in 1990's. warp knitted gauze makes up for the lack of weft knitted
gauze and represents the most advanced level of the platinum catalyst
gauze in the world, the feature of weft knitted gauze is open circle.
wires of every row do not cross, Though it has good stretch, mechanic
stability is not good, wire borken will cause stitches dropping.
warp knitted gauze is close circle. wires cross with each other.
when a wire breaks, wires will tie around the borken. so warp knitte
gauze has good mechanic stability.
warp knitted guaze is in fine close stitch,. fully shows the advantage
in technology, fully statifies the needs of high efficiency and
quality catalyst gauze for nitric acid produciton.
Spefication and style
of "huajin" brand catalyst gauze
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knitting and weave gauze
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style: Pt/Rh
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style: Pt/Rh/Pd
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No.
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No.
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proporation %
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diameter
mm
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No.
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proporation
%
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diameter
mm
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KPR1
|
WPR1
|
90/10
|
0.06
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WPRP1
|
92.5/3.8/3.7
|
0.09
|
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KPR2
|
WPR2
|
90/10
|
0.076
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WPRP2
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90/5/5
|
0.09
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KPR3
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WPR3
|
90/10
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0.09
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WPRP3
|
92.5/3.8/3.7
|
0.076
|
|
KPR4
|
WPR4
|
95/5
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0.076
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WPRP4
|
90/5/5
|
0.076
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KPR5
|
WPR5
|
95/5
|
0.06
|
WPRP5 |
92.5/3.8/3.7
|
0.06
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KPR6
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WPR6
|
95/5
|
0.09
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WPRP6
|
90/5/50
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0.06
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KPR7
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WPR7
|
92/8
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0.09
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KPR8
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WPR8
|
92/8
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0.076
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| KPR9 |
WPR9 |
92/8 |
0.06 |
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gauze's
feature
- According to thedemands of different customers, the technique
can make a rational plan to give the best effect to users
- fine dose stitch
- optimal pressure drop
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- greater surface areaforcatalysis because of the three
idmensional bulky structure, improved ammoni conversion
efficiency of up to 0.5%a
- Higher mechnical stability and flexibility of knitted
gauze, less catalyst tearing
- Capable of kniting 4.0meter diameter seamless gauze
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- Reducing gauze inventory up to 25%-30%
- Less RhO2-formation
- Avoidance of hot sports on catalytic wire surface and
lower platinum loss during reaction
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- Be helpforthe control of decreasing exhaust pollution
in nitric acid producing
- Extended campaign length sate. stability in all of the
process
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Our company's exports
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No.
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commodity
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spec.
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No.
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commodity
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spec.
|
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1
|
silver nitrate
|
CP
|
8
|
gold tri-chloride
|
AR
|
|
2
|
silver nitrate
|
PHOTO
|
9
|
gold potassium cyanide
|
AR
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3
|
silver nitrate
|
AR
|
10
|
silver sulfate
|
CP
|
|
4
|
silver carbonic
|
AR
|
11
|
silver sulfate
|
AR
|
|
5
|
silver chloride
|
AR
|
12
|
silver syanide
|
CP
|
|
6
|
palladium chloride
|
CP
|
13
|
silver oxide
|
CP
|
|
7
|
silver chloride
|
CP
|
14
|
silver oxide
|
AR
|
|
