Aceros Inoxidables Olarra, S.A

Aceros Inoxidables Olarra, S.A.

Bilbao, Spain


The Background


Since 1955, Aceros Inoxidables Olarra has been a leading producer of stainless steel wire and Rod. Olarra has a long history of innovation, which has made them one of the preeminent suppliers of stainless steel long products in Europe.


Olarra is a memeber of the Rodacciai group of companies. The Rodacciai Group of companies include Rodacciai, Redaelli inox, Bullnava and Trafilerie San Paolo.


The Challenge


The pickling line at Olarra was ending it’s useful service life and was in need of upgrading and improvements. High maintenance requirements, limited productivity, and waste generation were all problems that Olarra needed to manage in their daily operations.


A new pickling line designed to alleviate the production challenges, high acid consumption and environmental concerns of the existing line was necessary. Reduction of waste acid and hazardous acidic metal sludge volume, lower neutralization and waste treatment costs and increased productivity were the primary objectives Olarra set out to achieve.


The Scanacon Solution


Advising Olarra extensively on the new line design, Scanacon supplied state of the art acid analysis, filtration and recovery technology for the new pickling line for both the preliminary H2SO4 pickling process and final HNO3-HF process.


The Result


The delivered equipment met Olarra’s objective for reduced acid consumption, waste generation and increased productivity. Continuous removal of suspended solids from the preliminary H2SO4 pickling process with Scanacon’s ASRA system eliminates the need to dump and clean the process tanks, significantly improving line uptime while minimizing the requirement to manually handle this hazardous waste. Scanacon’s SAR ModuFlex technology has significantly reduced acid consumption by allowing Olarra to recycle the HNO3-HF pickling acids, in addition to be able to maintain the process at optimum efficiency.


Scope of Work


Scanacon supplied a complete acid management solution to Olarra including:


• SA70 Acid Manager

• CycloSAFU

• SAR-ModuFlex


• Commissioning

• Training