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Area: Pulp and Paper

BLACK LIQUOR OXIDATION & WHITE LIQUOR OXIDATION

When using white liquor in processes such as oxygen delignification and bleaching extraction, sodium sulfide (Na2S) can negatively impact the pulp quality. One solution is to use oxidation of white liquor which also reduces the required sodium hydroxide.

NORAM’s IsoFlo™ reactor efficiently oxidizes Na2S, either partially to thiosulfate or completely to sulfate. The partially oxidized white liquor can be used in oxygen delignification, EO-bleaching, and in SO2-scrubbers. The fully oxidized white liquor can be used in EOP- and OP-bleaching stages.

In addition, IsoFlo™ can be used for black liquor oxidation, effectively reducing odor from the sulfur content. This technology is also integrated into NORAM’s LignoForce™ technology. It offers a compact design with possibilities for heat integration.

Short reaction time

Reduced oxygen consumption

Minimal environmental impact

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Our business areas

Sulphuric Acid

NORAM provides innovative process technology, engineering and equipment to metallurgical, sulphur-burning and acid regeneration acid plants. NORAM’s equipment and systems, reduce environmental emissions, increase energy efficiency , increase capacity and improve plant reliability of plants of all scales around the world.

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Sulphur Dioxide

With more than 180 plants installed all over the world – the Cellchem sulphur burning plants are one of the most used technologies for production of sulphur dioxide (SO2). Available standard capacities range from 0.5 to 100 metric tons of sulphur burned per day and the design can be tailored to produce several downstream SO2 products.

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Pulp & Paper

NORAM offers a broad range of specialty technologies to the forest products industry. Our P&P Division has two key focus areas: the downstream beneficiation of forest products to extract increased value, and in System Closure methodologies, targeting chemical recovery and zero-effluent strategies.

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NITRIC ACID

Nitric Acid Solutions for Industrial Applications
NORAM provides technical solutions, equipment and materials for the chemical process industry, including processes related to fertilizer production. Our work with nitric acid focuses on: Improving existing production systems and developing practical solutions.

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