Related Questions

Fusion zone in the electric furnace used for reduction of phosphate rock to elemental phosphorous is maintained at __________ °C.
A tea merchant blends 2 kinds of tea, putting in 3 parts of a Tk. 25 per kg grade to 1 part of a Tk. 15 per kg. If the mixture is changed to 1 part of the Tk. 25 per kg grade to 3 parts of the less expensive grade, how much will the shop lose or save in blending 200 kg?
Electric furnace method for production of phosphorous uses phosphate rock
Heating a mixture of phosphate rock, coke and sand in an electric furnace produces
A mixture of phosphate rock __________ is heated in an electric furnace to produce phosphorous.
Because of its very high refractoriness of the order of __________ °C, silicon carbide refractories are used in zinc smelting furnace, muffle furnace and for supporting the wares in tunnel kilns.
Rock phosphate used for the production of phosphatic fertiliser is mined at
__________ content of the phosphate rock is the pollutant of primary interest in a phos-phatic fertiliser plant.
Leaching of phosphate rock by strong __________ acid produces phosphoric acid.
Triple superphosphate is made by reacting phosphate rock with __________ acid.