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Acid Regeneration

Processes such as alkylation (refineries), sulfonation, nitration gas drying or purification and the production of other acid-catalyzed chemicals, consume high quality sulfuric acid feedstock and generate spent acid requiring disposal. Regeneration appears as the best solution enabling industrial companies to cost effectively comply with environmental regulation.

Sulfuric Acid Regeneration Process

Treatment Services


Rhodia Treatment Services specializes in bulk incineration of pumpable hazardous wastes, including slurries, sludge, and two phase liquids. High-viscosity wastes and meltable solids are routinely handled through specially designed unloading systems Sulfuric acid regeneration plants are well suited for incineration because of the high furnace temperatures, long residence times, and extensive scrubber systems required to produce high-quality sulfuric acid.

Industrial Field Services (IFS)


The Rhodia Eco Services Enterprise IFS sulfuric acid vessel cleaning program is rated a "Best Practice" at several major petroleum refineries and chemical plants because of unique HS&E improvements.

Benefits include

  • Patented non-entry tank cleaning technology is inherently safe.
  • Sulfuric acid sludge's are fluidized and recycled via Rhodia's spend acid regeneration process to make fresh sulfuric acid and therefore is not considered a RCRA hazardous waste.
  • No drums, roll-off boxes or vacuum trucks are used in the cleaning process.
  • State-of-the-art mobile SO2 caustic scrubber is used for off gas sulfur dioxide and acid mist emission control.
  • Time saving tank cleaning method reduces storage tank out of service time.
  • Specialized field team can respond to sulfuric acid emergencies, sulfuric acid related process upsets or transportation incidents.

IFS has cleaned over 235 fresh and spent acid storage tanks in all shapes, sizes and configurations. A dedicated and highly experienced IFS field team specializes only in sulfuric acid. Experience with sulfuric acid handling, processing know how, recycling of spent acid residues and environmental emission control separates Rhodia IFS from all other tank cleaning companies.

Sulfuric Acid


Rhodia Eco Services is the world's largest producer of sulfuric acid made from sulfur.

We serve our customers with a network of production facilities in the United States, which guarantee reliable supply and delivery. Our sulfuric acid production units are based in Hammond, IN; in Baton Rouge, LA; in Baytown and Houston, TX; and in Dominguez and Martinez, CA.

Sulfuric acid is the chemical most widely used in industry. Its many applications and end markets include unleaded gasoline, automobile batteries, paper bleaching, sugar bleaching, water treatment, sulfonation agents, cellulose fibers, fertilizers, steel manufacturing, coloring agents, amino acid intermediates, and the regeneration of ion exchange resins.


We offer a wide variety of acids, in the right grade for your particular needs.