Determination of alumina (AI2O3) in iron ore is based on the...

Home / Metallurgical Engineering / Metallurgical Analysis / Question

Examveda

Determination of alumina (AI₂O₃) in iron ore is based on the selective formation of AIPO₄ from its acidic solution (with cone, HCl) by the addition of

A. phosphoric acid

B. calcium phosphate

C. barium phosphate

D. sodium or ammonium phosphate

Answer: Option D

This Question Belongs to Metallurgical Engineering >> Metallurgical Analysis

Join The Discussion

Related Questions on Metallurgical Analysis

Determination of phosphorous content of iron & steel is done by bringing phosphorous into solution and then finding it by the . . . . . . . . method.

A. combustion

B. gravimetric

C. volumetric

D. both B and C

View Answer

Temperature used in the determination of volatile matter of coal is . . . . . . . . °C.

A. 750

B. 850

C. 950

D. 1050

View Answer

During volatile matter content determination, air dried coal sample is heated for 7 minutes at a constant temperature of . . . . . . . . °C.

A. 725

B. 925

C. 1050

D. 1175

View Answer

For hydrogen analysis in blast furnace, gas by Orsat apparatus, it is completely oxidised in contact with CuO to H₂O at a-temperature of about . . . . . . . . °C.

A. 150

B. 280

C. 500

D. 800

View Answer

More Related Questions on Metallurgical Analysis