Natural Ruchem India
Seven titration vials showing the red mud liquor gradient, from pale amber to deep red, mid-treatment in a refinery lab.

RISM
Technology

RISM (Red Mud Integrated Sustainable Management) is an innovative technology designed to valorize red mud generated from aluminum production.

By focusing on the recovery of valuable entrained sodium and aluminum components and lowering the pH of the end residue, RISM enhances overall refinery washing efficiency and sustainability.

RISM is designed to enhance recovery in high‑efficiency Bayer systems where residual losses are driven by material and process constraints rather than operational inefficiencies.

This approach addresses critical environmental challenges while creating economic opportunities in the global aluminum industry, transforming waste into a resource for future use.

RISM Characteristics

RISM is a chemical treatment technology designed to enhance recovery of sodium and aluminum from red mud.

  • Works in slurry phase

    Works in slurry phase

  • Rapid reaction (~minutes)

    Fasten key storage

  • Compatible with existing refinery operations

Close-up of thick red mud being turned and mixed, with steam rising off the surface.
✓ MSDS Verified  |  RISM Chemical

RISM Chemical — Safe & Environmentally Responsible

A high-performance red mud treatment solution

Amber glass flask labelled RISM, Red Mud Treatment Chemical, holding a dark red-brown liquid.
🌿 Designed for safe handling, efficient performance, and minimal environmental impact

RISM is safe for personnel, compatible with refinery operations, and environmentally responsible.

Implementation Methods:
Inline vs. Offline

Diagram comparing RISM Inline, which doses RISM directly into the pipe feeding the primary washer, against RISM Offline, which pre-mixes RISM with red mud in an industrial mixer before it reaches the unmodified wash circuit.

RISM Inline

  • Continuous integration enhances operational efficiency.
  • Seamless integration into existing refinery setup (washery) without any major machine.
  • Requires extensive risk assessment to the plant.

RISM Offline

  • Flexible deployment allows for varied processing conditions.
  • Purpose being to treat legacy stock piles of red mud.
  • Usage of industrial mixer before applying to washery.

*Both approaches can utilize the refinery's existing washing infrastructure upon inspection.

Key Benefits

Sodium & Aluminum Recovery

RISM technology facilitates efficient extraction of sodium and aluminum from red mud, maximizing resource utilization and value.

Improved Efficiency

By streamlining processes, RISM enhances overall refinery operations, resulting in increased productivity and reduced turnaround times.

Waste Reduction

This innovative approach minimizes hazardous waste generation, leading to lower disposal costs and a more sustainable operation.

Environmental Benefits of
RISM Technology

Key advantages for sustainability efforts through RISM

  • Biodegradable nature of RISM and byproducts from the process
  • Non-hazardous chemical and waste output for safety
  • Lower environmental footprint overall
  • Enhanced recycling potential of materials (red mud)
  • Contribution to sustainable aluminum production
Illustration of a hand holding a small green landscape with a tree, wind turbine and buildings, symbolizing sustainability.