Global Leader in Hydro Power and Aluminium
Self-sufficiency
Production
High Degree Of Vertical Integration
Bauxite and Nepheline
Production process
2
Alumina
4
Aluminium
Ent
GROUP
5
Aluminium production starts with the raw material bauxite, a clay like
soil type found in a belt around the equator. The bauxite is mined
from a few meters below the ground
The bauxite is then transported to plants where the clay is washed off
and the bauxite passes through a grinder
Aluminium production can also start with the raw material nepheline,
a hexagonal mineral that is a usually glassy crystalline silicate of
sodium, potassium and aluminium common in igneous rocks
3 Alumina, or aluminium oxide, is extracted from the bauxite through
refining where alumina is separated from the bauxite by using a hot
solution of caustic soda and lime
4
3'
The mixture is then heated and filtered,
and the remaining alumina is dried to a white powder
Alumina can be extracted via the Nepheline Process. Nepheline ore
is first sintered with limestone. The resulting sinter cake is crushed,
ground and leached, and alumina hydrate precipitated by
carbonation. The alumina hydrate is washed, dried and calcined to
produce alumina
Alumina production (1)
5 Alumina is used to produce aluminium. Electricity is run
between a negative cathode and a positive anode, both
made of carbon. The anode reacts with the oxygen in the
alumina and forms CO2
6
The result is liquid aluminium, which can now be tapped
from the cells. The liquid aluminium is cast into extrusion
ingots, sheet ingots or foundry alloys
Aluminium production (1)
Bauxites production (¹)
Nepheline production (1)
mnt
mnt
mnt
16.1
13.8
11.6
10.5
8.2
6.1
5.5
5.7
5.6
4.33
4.29
4.24
2017
2018
2019
2017 2018
2019
■Russia (2) Non-CIS
7.8
7.8
7.9
3.3
3.3
3.4
1.7
1.7
1.7
2.8
2.8
2.8
2017
2018
2019
Russia
Ukraine
Non-CIS
mnt
Projects to increase self-sufficiency in materials (>100% in alumina, ~80% bauxites and nephelines, ~88% in pre-baked anodes) (3), efficient midstream and diversified product mix
1st stage of Dian Dian bauxite mine in Guinea was launched in June 2018
Friguia alumina complex was relaunched in June 2018 and will increase alumina output (600 ktpa)
Volgograd anode plant (104 Ktpa) with own calcined coke production capacities (95 ktpa) was test-launched in August 2018
New calcined coke production capacities at Irkutsk smelter (89 ktpa) were launched in August 2017
•
Taishet anode plant (1st stage - 217 ktpa) is expected to be launched in 1Q 2020
3.7
3.7
3.8
3.8
3.6
3.6
3.6
3.6
2016
2017
2018
2019
Russia
■Non-CIS
Source: Company data. (1) Bauxites and alumina are mainly delivered to Group companies and minor portion goes to third parties. (2) Bauxites production in Russia including nepheline ore volumes. (3) as of 4Q2019.
En+ Group overview
Investment highlights
Sustainable business
development
Results snapshot
Power segment
53
Metals segmentView entire presentation