Viena Siderúrgica S/A



Four furnaces are installed in an area of over 400 hectares. Viena´s industrial plant is modern and efficient and was built with the latest technology, including a system of pulverized coal injection (PCI) as well as a sintering and a thermoelectric plant.

Viena directly employs about 500 workers at the plant in Açailândia.



Viena, in order to achieve one of its primary objectives, the production of green pig iron, has planted forests since 1989. Currently possessing 30,261 reforested hectares, already reaching their self-sufficiency in the planted area for the current production level.

In addition, the company is participating significantly in improving the standard of living in its region, generating more than 2.500 jobs between direct and indirect employment in the supply chain, helping to maintain people in the country. As a result of socio-economic benefits, the municipalities in which Viena operates show a remarkable increase in their human development index (HDI), well above the national average.

The strong investment in the technological forestry through the years, especially the actions of the genetic improvement of eucalyptus, have had the following results: very diverse genotypes, consisting of tested clones with very high yields (averaged over 42 cubic meters of wood per hectare per year, with the goal of 48 cubic meters) as a result of a rigorous selection among more than a thousand clones, considering among several inputs, the resistance to diseases and pests, wood quality, capacity of regeneration.

In addition to breeding, Viena also invests in other areas of forestry, with a nursery to produce 6 million cloned cuttings per year and a modern system of drip irrigation. Techniques such as soil preparation, fertilization, control of weed competition, etc. also contribute to the full development of the forests, whose productivity is audited each year by the Federal University of Viçosa.

All the above allows Viena to produce "green pig iron" which is socially and ecologically sustainable, while contributing to reducing greenhouse gases through the recapture of carbon dioxide through the process of photosynthesis.



The production of charcoal from eucalyptus began in small brick kilns, a system of little control of the carbonization process.

The need to add value to charcoal led Viena to seek new alternatives, always looking for new innovating technologies. In September 2008 the company started its charcoal production in large rectangular ovens. The first unit of 16 ovens, each one with a capacity of 200 m³ of solid eucalyptus wood, is producing 15,000 m³ of charcoal per month, in three units of 16 furnaces.

The rectangular kilns enable the production of charcoal in a modern industrial manner, using machines for loading and unloading, and allowing the burning of the smoke released during carbonization. This system produces charcoal that is economically viable, ecologically friendly and socially just.

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