Environment

Environment

We work continuously to improve the environmental performance of UHT and have implemented an environmental management system that is certified according to ISO 14001.

As stated in our environmental policy, it is an important objective for UHT to develop and deliver products that not only have been manufactured in consideration of the environment, but also, and most importantly, provide less environmental impact when used by our customers.

Below are a few examples of how our technological solutions can improve our customer’s environmental performance:

Sustainable Stainless Steel Production

When refining stainless steel in an AOD or CLU® converter it is essential to take control of and minimise all direct and indirect CO2-emissions. It has been shown by life cycle analysis that the largest contributor to the total amount of carbon emission during converter refining derives from added alloys and reduction agents.

Therefore, UHT has focused on process development that optimises the refining process in order to minimise the use of additives and thereby lower the total carbon footprint. With the UTCAS® process control system, it is possible for the stainless steel producer to design the refining process according to the most sustainable process route, while still maintaining high quality requirements and in addition lower the total cost of refining.

For more information, please read:
Environmental mapping of stainless steel refining and suggested route to greener stainless steel

Granulation decreases dust emissions

In integrated steel plants there will always be a need for methods to handle excess iron from the blast furnace due to downstream production disturbances or maintenance. Historically, open air sand pit casting, (or pooling, beaching), has been widely used for this purpose, but this causes severe dust emissions that affect the environment both locally and globally. In addition to this, the solidification of iron is slow and the solidified product, which normally contains a lot of sand, has to be crushed at a considerable cost.

The GRANSHOT® metal granulation plant is well suited as a sustainable solution to this problem. Granulation of iron has several advantages such as quick solidification, minimal dust emissions and a high yield product ready to use as a prime iron source in house or for external sale. Arcelor Mittal Saldanha Steel in South Arfica and SSAB Oxelösund in Sweden are two examples of integrated steel works which have installed GRANSHOT® plants and thereby significantly reduced dust emissions caused by solidification of excess iron.

For more information, please read:
Granshot Iron Granulation for Optimised Plant Logistics
Iron Granulation in Integrated Steel Plants

For further questions, please contact Caroline Asplund, UHT Environmental and QA Manager, caroline.asplund@uht.se.

Uddeholm Office

Uddeholm Office

Granules from conveyor
Frg_CERT_ISO9001_ISO14001_COL---0-242afb10-35e4-424b-b628-413836ec1a04
Please enter your email to download Technical Articles
Please enter your email to download.