why we make urea prills , why we do not make crystals of urea,

1 Answers   IFFCO,

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which thing is responsible for making petroleum?

6 Answers   OGDCL,

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What is the significance of the minimum flow required by a pump?

0 Answers  

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What are some factors to consider when trying choosing between a dry screw compressor and an oil-flooded screw compressor?

0 Answers  

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hello everyone do anyone have interview questions for any chemical industry please email me at

0 Answers   ONGC,

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iN CONFINED SPACE ENTRY HOW MUCH OXYGEN MAY BE REQURIED

6 Answers  

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what is the speed of a rotary drier

3 Answers  

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A distillation column separates 10000 kg / hr of a mixture containing equal mass of benzene and toluene. The product D recovered from the condenser at the top of the column contains 95 % benzene, and the bottom W from the column contains 96 % toluene. The vapor V entering the condenser from the top of the column is 8000 kg / hr. A portion of the product from the condenser is returned to the column as reflux R, and the rest is withdrawn as the final product D. Assume that V, R, and D are identical in composition since V is condensed completely. Find the ratio of the amount refluxed R to the product withdrawn D. Hint : Solve the simultaneous equations as follow in order to find the answer (R / D) : 10000 = D + W; 10000 (0.5) = D (0.95) + W (0.04); 8000 = R + D.

2 Answers  

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Explain what are the design considerations for a piping system for the transfer of slurries?

0 Answers  

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why rotameter has variable area?? is it necessary??

1 Answers  

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Is it possible to compare the resistance to chloride attack of several materials of construction?

2 Answers  

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What are the factors involved in considering the choice of dry screw compressor?

0 Answers  

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