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Which compound is used to decrease the temperature in the absorber during the manufacture of isopropanol by hydration of propylene?

(a) Refrigerated brine

(b) Cold water

(c) Sulphuric acid

(d) Nitric acid

The question was posed to me during an interview.

This question is from C3 Compounds topic in portion Synthetic Organic Chemical Industries of Chemical Technology

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Correct option is (a) Refrigerated brine

The explanation: Refrigerated brine is used to control the temperature in the absorber. Jacketed arrangement is used in order to circulate the refrigerated brine in the cooling jacket. Brine is used since it has an ability to reach low temperatures without freezing problem.

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