Sulfuric acid

Made by

• Sulfuric acid from sulfur burning, double contact / double absorption (1000 t/d, 98.5 wt%)Main productConcept · not reviewed

Used by

• Acetone and phenol from cumene (cumene hydroperoxide route, 200 kt/a phenol)FeedstockConcept · not reviewed
• Bromine from bromide brine by chlorine oxidation and steaming-out (Smackover-type brine)FeedstockConcept · not reviewed
• Chlor-alkali by membrane-cell electrolysis (100 kt/a Cl2, 50 wt-% caustic soda, hydrogen)FeedstockConcept · not reviewed
• Chloromethane from methanol and hydrogen chloride (gas-phase hydrochlorination, 100 kt/a)FeedstockConcept · not reviewed
• Hydroxylammonium sulfate by catalytic NO hydrogenation (30 kt/a NH2OH, 25 wt% solution)FeedstockConcept · not reviewed
• Iodine from natural iodide brine by chlorine oxidation, air blowing-out and SO2 absorption (1000 t/a)FeedstockConcept · not reviewed
• Bleached softwood kraft pulp with chemical recovery (1000 ADt/d market pulp, concept)FeedstockConcept · not reviewed

Takes part in

• 2NaHCO₃+H₂SO₄→givesNa₂SO₄+2CO₂+2H₂OReactant · Neutralisation of the brine alkalinity by the acid (R-101) · one process
• I₂+SO₂+2H₂O→gives2HI+H₂SO₄Product · Reduction of the blown-out iodine by sulfur dioxide (T-202) · one process
• 2NO+3H₂+H₂SO₄→givesH₈N₂O₆SReactant · one process
• 2NO+5H₂+H₂SO₄→givesH₈N₂O₄S+2H₂OReactant · one process
• Cl₂+SO₂+2H₂O→gives2HCl+H₂SO₄Product · Reduction of the blown-out excess chlorine by sulfur dioxide (T-202) · one process
• SO₃+H₂O→givesH₂SO₄Product · one process
• H₂SO₄+2NaOH→givesNa₂SO₄+2H₂OReactant · Neutralisation of the sulfuric acid of the spent brine (R-401) · 3 processes

Routes compared