KAS Has Received the First Shipment of Local Calcinated Coke
The first pilot shipment of raw materials to be used in anode production has been delivered to Kazakhstan Aluminium Smelter, a company of Eurasian Group (ERG). A thousand metric tons of calcinated petroleum coke (CPC) have been unloaded so far. The use of CPC produced by the new Calcinated Petroleum Coke Plant (UPNK-PV) in the Pavlodar Free Economic Zone will further increase the share of local content in KAS aluminum products.
The calcinated petroleum coke is a feedstock for the manufacture of anodes, one of the key components in aluminum smelting. The prescribed quantities of CPC and coal-tar pitch are fed into a mixer to be mixed at 185°C. The resulting anode paste is then pressed into green anodes in a hydraulic press. The press produces 25 anode blocks per hour, which are cooled on a special conveyer.
– Based on our preliminary tests of CPC samples, the CPC manufactured by UPNK-PV is different from the coke we are currently using. However, we would need more time to study it in the process of anode baking to make a more accurate assessment, said Nurlan Karimbekov, acting head of the electrode shop.
Raw materials used in the production of the pilot batch of CPC are also sourced locally. They are manufactured by another Pavlodar-based company, the Pavlodar Petrochemical Plant.
– Our plant has annual production capacity of some 205 KMT of calcinated coke. Currently, we are still at the startup stage, but even at this stage the plant can meet the demand for CPC from potential customers, said Ivan Fedorov, Chief Process Engineer of UPNK-PV.
In March 2016, the first pilot batch of Kazakh calcinated coke has been introduced into the electrode production process. The results of the shift to a new input component will be known after the anodes pass through the full production cycle, from pressing and sintering to installation in electrolytic smelting cells The first batch of 100%-localized anodes is expected to be used in aluminum smelting in early April.