B - Operations – Transporting – 01 – D
Inventor
B - Operations, Transporting
01
D
Inventor
Country: Germany
A process for purifying and concentrating spent sulphuric acids
Continuous process for preparing aromatic amines
Process and a device for separating a solid residue from its...
Process and device for continuous evaporation to dryness of...
Process for the preparation and purification of nitroaromatics
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