Answer / o.v.r.reddy

MULTI EXTRACTIONS WITH COUNTER CURRENT WAY WITH SMALL
VOLUME OF SOLVENT IS BEST OR CONTINUOS EXTRACTION IN TOWER
WITH CONTACTING OF SOLUTE AND SOLVENT PHASES OPPOSITELY
UNDER SLOW STIRRING DEPENDING UPON SP.GRAVITY OF RSFITE AND
ORGANIC.

Answer / mohan

several small volume exractions are quiet best than the
single exraction..coz thr may be a chance for getting the
undesired product,i mean we dnt get the desired
quality..and also the feed must not be fully extracted in
case of single exraction,moreover it takes much time to
extract the feed..but in multi extractions with small
volume fullfill the drawback from the single extraction..it
takes less time to extract the feed..

We are having proplem with the persperation smell in ETT/ECHO room in our cardiac hospital.The 2 Ton of AC is not conditioning the environment. We have to use exhaust fan to through out of the room bad air. Could anyone suggest how to coup with this effectively using chemical engineering. Any permanent solution to neutralise the bad smell.The Air freshners are not doing enough instead making a bad odour.

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Who built the first production scale pla (polylactic acid) facility?

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What is vapour flooding and liquid floodin in distillation?

0 Answers   Deepak Fertilisers,

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Hallow everybody, we want to know in a NPk fertilizer process plant (Bulk Blender) we are in doubt if use square or rectangular hopper jus to avoid the vault effect durin the flow of of raw material like Phosphorus, Potasium and zeolite..Please any advise will be appresated Isdray

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REACTION ENGINEERING - EXAMPLE 13.2 : A batch reactor is designed for the system of the irreversible, elementary liquid-phase hydration of butylene oxide that produces butylene glycol. At the reaction temperature T = 323 K, the reaction rate constant is k = 0.00083 L / (mol - min). The initial concentration of butylene oxide is 0.25 mol / L = Ca. The reaction is conducted using water as the solvent, so that water is in large excess. (a) Let the molecular weight of water is 18 g / mol and the mass of 1 kg in 1 L of water, calculate the molar density of water, Cb in the unit of mol / L. (b) Determine the final conversion, X of butylene oxide in the batch reactor after t = 45 min of reaction time. Use the formula X = 1 - 1 / exp [ kt (Cb) ] derived from material balance. (c) Find the equation of t as a function of X.

1 Answers  

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ACCOUNTING AND FINANCIAL ENGINEERING - EXAMPLE 34.14 : For a formula of y = [ 1 - 1 / (1 + r) ^ n ] / r, let y = present value, r = interest rate / year, n = number of years to future value of 1 : (a) Find a simple mathematical relationship of y as a function of r when n = 1 million years. (b) What is the present value of $10000, if the annual discount rate is 10 %, forever?

1 Answers  

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what is density

2 Answers   CPCL, TII,

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How can I evaluate the thermal relief requirements for double block-in of 98% sulfuric acid?

0 Answers  

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BIOCHEMICAL ENGINEERING INSTRUMENTATION - EXAMPLE 29.6 : In infrared spectrum, one of the factors affecting peak location is the mass of the atoms. The stretching frequency of a bond connected to a lighter atom will be greater than the same bond connected to a heavier atom. (a) For halogens like florine (F), chlorine (Cl), bromine (Br), iodine (I) and astatine (At), what is their IUPAC group number? Hint : The proton numbers for F, Cl, Br, I and At are 9, 17, 35, 53 and 85 respectively. (b) For the compounds of H-F, H-Cl, H-Br, H-I and H-At, which one has the lowest stretching frequency and which one has the highest stretching frequency? State the reasons.

1 Answers  

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What significance the angle of repose holds in the chemical industry, explain?

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what is the effect of weight loss & heat value loss on storing Bagasse in open yard, after 60 day

1 Answers  

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can u tel me d question paper of gail?

0 Answers   HPCL,

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