Question

The global sulphuric acid market is projected to reach USD 11.10 billion by 2021, at a CAGR (Compound Annual Growth Rate) of 2.87% during the forecast period. Furthermore, this market is projected to reach 278.33 million tons, at a CAGR of 2.20% from 2016 to 2021. The steady demand for sulphuric acid is due to its diverse applications which are the key factors driving the global sulphuric acid market.

The production of sulphuric acid via sulphur is less polluting as compared to pyrite ore roasting and base metal smelter where companies/factories have to adopt strict procedures to treat the emitted SO2 gases before releasing them in the atmosphere.

Its diverse applications are countless as a raw material or processing agent, so referred as universal chemical, King of Chemicals.

In the environment, sulphuric acid is a constituent of acid rain, since it is formed by the atmospheric oxidation of sulphur dioxide in presence of water. sulphuric acid market, (2017)


(i) Construct an equation on sulphur burning in air.

(ii) Give reason, why the air used to burn the sulphur must be as clean as possible. (1) (iii) Describe how elemental sulphur is extracted, avail in using its properties during extraction, name the process. (Note: Draw the picture to explain the process)


(iv) Apply Lechatelier’s principle in getting the maximum yield of sulphur trioxide and their effect on the

economics of the process.

(v) In most plants about 0.05% by volume of SO2 are emitted into the atmosphere through a chimney stack. Suggest two reasons why SO2 should not be discharged into the atmosphere.

Answer 1

Answer:

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