What is DCDA process?
Double Conversion Double Absorption (DCDA) Process Burning the molten Sulphur with air to produce gas-containing SO2. ▪ Cooling the hot gas in Waste Heat Boiler System to produce superheated or saturated steam at conditions fixed, as per requirements.
How sulfuric acid is manufactured?
The starting material for sulfuric acid manufacture is clean, dry sulfur dioxide (SO2) gas. In the contact process SO2 is oxidized to sulfur trioxide (SO3) at high temperature (about 450°C) in the presence of a vanadium catalyst. SO3 then is dissolved in concentrated sulfuric acid forming fuming sulfuric acid (oleum).
How is sulfuric acid manufactured by lead-chamber process?
chamber process, also called Lead-chamber Process, method of producing sulfuric acid by oxidizing sulfur dioxide with moist air, using gaseous nitrogen oxides as catalysts, the reaction taking place primarily in a series of large, boxlike chambers of sheet lead.
What catalyst is used in DCDA process?
Several applications for LiquiSonic® analyzer mea- surements of sulfuric acid and oleum concentra- tions are:: · H2SO4 and oleum production · fertilizer production · synthesis gas drying · etching and pickling baths · mine-ore processing · refinery catalysis · production of various chemicals Two main H2SO4 production …
What is Sulphuric acid used for?
In various concentrations the acid is used in the manufacture of fertilizers, pigments, dyes, drugs, explosives, detergents, and inorganic salts and acids, as well as in petroleum refining and metallurgical processes.
What is in Sulphuric acid?
Sulfuric acid (American spelling) or sulphuric acid (Commonwealth spelling), also known as oil of vitriol, is a mineral acid composed of the elements sulfur, oxygen and hydrogen, with the molecular formula H2SO4. It is a colorless, odorless and viscous liquid that is miscible with water.
Where is sulfuric acid manufactured?
In particular, China makes most of its sulfuric acid from pyrites, an iron sulfide ore. Sulfuric acid is also obtained from ammonium sulfate, a by-product in the manufacture of poly(methyl 2-methylpropenoate) and also recovered from ‘spent’ (i.e. used) sulfuric acid.
What is the compounds of H3PO4?
The name of the compound H3PO4 is phosphoric acid.
What is sulphuric acid used for?
What catalyst is used in sulphuric acid?
vanadium pentoxide catalyst
Sulphuric acid is produced from sulphur. Sulphur dioxide is first obtained by the burning of the molten sulphur in presence of air. Sulphur dioxide is then converted to sulphur trioxide in presence of vanadium pentoxide catalyst.