Anode Paste for Aluminium Electrolysis
Anode paste is critically important for the industrial production of aluminium.
Aluminium is the most widely used nonferrous metal thanks to its outstanding advantages:
- Its high specific strength provides capabilities that are just as strong as steel but only half the weight, which is particularly advantageous for lightweight applications such as aircraft and road vehicles, etc.
- Its good electrical and thermal conductivities are highly appreciated for electronics and electrical applications.
- Together with excellent workability, its absolute barrier properties against oxygen, light and other environmental influences make aluminium an ideal packaging and container material. As a fully recyclable material, aluminium further enables an almost closed loop material cycle.
Ever since the 1950s the Buss Kneader has been first-choice technology for compounding anode paste. The original output capacities of 4 t/h have now advanced to 60 t/h, and 90 t/h can easily be handled by this system in future. During the last few years technological and processing optimizations have not only kept pace easily with the increased demands of higher DC power supplies (> 500 kA) and deteriorating raw material qualities, but even surpassed them.
The advantages of Buss technology over alternatives can be summarized as follows:
Each anode particle is continuously mixed at the same intensity and dwell time thanks to the precisely controllable kneading process. Gentle mixing maintains the same anode paste particle size distribution at all times. This ensures excellent physical properties of the anode blocks and optimal burning performance during electrolysis.
The three standard Buss Kneader sizes now available cover present and future output capacities ranging from 20 to 90 t/h. The dependability, spare parts and services availability over the entire lifetime of the Buss Kneader, usually reaching several decades, are regarded as legendary. This is impressively witnessed by the several hundred plants already installed in this field, and by the ongoing new installations.
Buss Kneader technology
Buss Kneader Series KX