How much gold concentration should be in the organic phase (dbc) before reduction by oxalic acid solution? Is it effective on purity of gold in reduction step? Define what is the ratio of dbc to oxalic acid solution in this step?

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What is the specific speed of a pump ?

0 Answers   NIC,

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How one can differentiate between 304 & 316 grades of steel (physically)?

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How to melt the solidified copper accretions in copper scrap melting furnace?

0 Answers  

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what is wedge load test method . what is offset method .

0 Answers   Essco Steels India,

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Which of different types of cast irons is stronger? Is their strength superior to steels?

0 Answers  

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what is the difference between digital signal and discrete signal?

1 Answers  

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What is hardest cutting tool material?

0 Answers   NIC,

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What is the specific heat value for liquid ?

0 Answers   NIC,

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Why is chromium molybdenum steels used to build pressure vessels? Define what is special about the properties of chromium molybdenum steels that make them ideal for pressure vessels?

0 Answers  

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Water hammer in pipes occur due to ?

0 Answers   NIC,

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A plain carbon steel contains 45 wt% of proeutectoid ferrite. What is its average carbon content in weight percent? I know that you need to use a tie line in the phasediagram, but my book does not really give a good example to go by?

0 Answers  

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