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WE’RE HIRING:

· CHEMICAL ENGINEER

· ELECTRICAL ENGINEERING TECHNOLOGIST

 

 

Guaranteed / expected values

1. Process values

  SOR* EOR**
Conversion (mol%) 82-87 82-87
Selectivity (mol%) 70-73 67-68
Reaction Yield (m/m%) 102-104 97,5-98,5
Type of technology for MA recovery Solvent Water Solvent Water
Loss on Absorption and Distillation (m/m%) 0,1-0,5 1,5-2 0,1-0,5 2-2,5
Overall plant Yield (m/m%) *** 101,5-103,5 100-103 97,5-98 95-96,5

* start of run / fresh catalyst
** end of run / after 5 years of operation
*** Overall plant Yield → ton of product Maleic Anhydride / ton of feed n-butane in percentage.

2. Production quality

PROPERTIES: Unit Expected value Guaranteed value
Colour in molten form: Hazen 5-10 max. 10
Melting Point: °C 52,6-52,7 min. 52,6
Maleic Anh. Content: m/m% 99,7-99,8 min. 99,7
Maleic Acid Content: m/m% 0,05-0,1 max. 0,15
Ash Content: m/m% 0,0005 0,002
Iron Content: m/m% < 1,0 ppm max. 3,0 ppm
Colour Stability (150°C, 1,5 hours) Hazen 30-40 max. 40
Appearance:   white solid or colourless molten material
Boiling Point: °C 202
Density (70 °C): t/m3 1,384
In solid form t/m3 1,430
Relative Vapour Density (air=1)   3,38
Ignition Point (closed area): °C 102
Self-Ignition Point: °C 477

The above data are valid for final product MA produced with Technobell recovery solvent technology.

3. Certificate of final acceptance

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