Our REGMAX®
Solution

We developed the REGMAX® process to overcome all existing problems with stainless steel industries mixed acid pickling and its disposal. The REGMAX® process enables total recovery of all waste acids components, eliminating the need of waste acid disposal.

Disadvantages of stainless steel pickling processes.

In stainless steel pickling, parts of the acids are reacting with the steel surface and are transformed to chromium, nickel and iron salts. Globally more than 350,000 liters of mixtures of these acids are being used for stainless steel pickling processes every hour and turned in large amounts of waste acid. Disposal of spent acid causes significant environmental problems and endangers today’s stainless steel pickling operational licenses.

Our REGMAX®
Solution

We developed the REGMAX® process to overcome all existing problems with stainless steel industries mixed acid pickling and its disposal. The REGMAX® process enables total recovery of all waste acids components, eliminating the need of waste acid disposal.

Disadvantages of stainless steel pickling processes.

In stainless steel pickling, parts of the acids are reacting with the steel surface and are transformed to chromium, nickel and iron salts. Globally more than 350,000 liters of mixtures of these acids are being used for stainless steel pickling processes every hour and turned in large amounts of waste acid. Disposal of spent acid causes significant environmental problems and endangers today’s stainless steel pickling operational licenses.

Traditional Pickling Process

Pickling is an essential process step during steel production or processing.

Stainless steel pickling is performed with mixtures of hydrofluoric, nitric or sulfuric acids.

The result is a waste acid to be neutralized and turned into nitrate waste water and toxic sludge.

Pickling does not only burden the environment, but causes high operational costs, and endangers today‘s steel production licences. Valuable ressource are lost forever instead of being reused.

How we reinvented the stainless steel pickling process.

The REGMAX® process overcomes all problems related to mixed acid pickling today. The new technology enables total recovery of all waste acid components.

Environmental impact eliminated and your production license secured.

First, we dry off the liquid waste acid to avoid generation of nitrogen oxides (in the next step).

Your OPEX reduced by
more than 90%.

Then, we roast the dryed metal salts, where the pickling process is inversed.

Waste Water eliminted and million of liters of fresh water saved.

We turn the waste into fresch resources. Acids are reused one-to-one for pickling again and again. Metal oxides are reused as raw material for steel production.

Environmental impact eliminated and your production license secured.

First, we dry off the liquid waste acid to avoid generation of nitrogen oxides (in the next step).

Your OPEX reduced by
more than 90%.

Then, we roast the dryed metal salts, where the pickling process is inversed.

Waste Water eliminted and million of liters of fresh water saved.

We turn the waste into fresch resources. Acids are reused one-to-one for pickling again and again. Metal oxides are reused as raw material for steel production.

Our proof of concept

The first
REGMAX® plant

The world’s first REGMAX® plant was constructed at a German midsized stainless-steel manufacturer. All components where manufactured and the plant was erected next to the steel producers pickling line. Our customer is operating one of the most modern pickling facilities in Europe, however the waste acid being generated was sent to a neutralisation plant only. Our installed REGMAX® plant recovers more than 1 million litres of the toxic waste acid every year and prevents harmful damage to the local ecosystems by not disposing of waste acids nor releasing contaminated wastewater. The technology is successfully validated with more than 3,500 hours of operation time so far. Outstanding recovery rates where approved in this first industrial application.

Project achievements from the world's first REGMAX plant

>99%

Total Hydrofluoric Recovery

>98%

Total Nitric Recovery

>99%

Metal Recovery

1,300t

toxic sludge avoided

3m

litres water saved

1,250 t

Co2-e avoided

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