It is desired to produce 1000 kg/h of NaPO4. 12HO crystals from a feed solution containing 5.6 wt % Na:PO: and traces of impurity. The original solution is first evaporated in an evaporator to a 35 wt% N2PO4 solution and then cooled to 293 K in a crystallizer, where the hydrated arystals and a mother-liquor solution are removed. One out of every 10 kg of mother liquor is discarded to waste to get rid of the impurities, and the remaining mother liquor is recyded to the evaporator. The solubility of Na:PO, at 293 K is 9.91 wt %. Calculate the kg/h of feed solution and the kg/h of water evaporated.

Question
It is desired to produce 1000 kg/h of NaPO4. 12HO crystals from a feed solution containing 5.6 wt %
Na:PO: and traces of impurity. The original solution is first evaporated in an evaporator to a 35 wt% N2PO4
solution and then cooled to 293 K in a crystallizer, where the hydrated arystals and a mother-liquor solution are
removed. One out of every 10 kg of mother liquor is discarded to waste to get rid of the impurities, and the
remaining mother liquor is recyded to the evaporator. The solubility of Na:PO, at 293 K is 9.91 wt %.
Calculate the kg/h of feed solution and the kg/h of water evaporated.
Expand
Transcribed Image Text

It is desired to produce 1000 kg/h of NaPO4. 12HO crystals from a feed solution containing 5.6 wt % Na:PO: and traces of impurity. The original solution is first evaporated in an evaporator to a 35 wt% N2PO4 solution and then cooled to 293 K in a crystallizer, where the hydrated arystals and a mother-liquor solution are removed. One out of every 10 kg of mother liquor is discarded to waste to get rid of the impurities, and the remaining mother liquor is recyded to the evaporator. The solubility of Na:PO, at 293 K is 9.91 wt %. Calculate the kg/h of feed solution and the kg/h of water evaporated.

Expert Answer

Want to see the step-by-step answer?

Check out a sample Q&A here.

Want to see this answer and more?

Experts are waiting 24/7 to provide step-by-step solutions in as fast as 30 minutes!*

*Response times may vary by subject and question complexity. Median response time is 34 minutes for paid subscribers and may be longer for promotional offers.
Tagged in
Engineering
Chemical Engineering

Process Calculations

Related Chemical Engineering Q&A

Find answers to questions asked by students like you.

Q: Sludge is wet solids that results from the processing in municipal sewage systems. The sludge has to...

A: Click to see the answer

Q: Paper pulp is sold on the basis that it contains 12 percent moisture; if the moisture exceeds this v...

A: Click to see the answer

Q: Use Hess's law to calculate the standard heat of the water-gas shift reaction, CO(8) + H20(g) → CO2(...

A: Actually, in water shift reaction , the carbon monozide gas reacts with water vapour (gas) to form c...

Q: calculate the PH of the 2M NaOH solution?

A: Click to see the answer

Q: 2. Calculate the fugacity of methane as at 322 K and 55 bar, given that the critical constants are 1...

A: Click to see the answer

Q: Example A material consisting originally of 25 mm particles is crushed to an average size of 7 mm an...

A: (a) The energy required to crush the material from 25 mm to 3.5 mm is to be calculated by Rittinger'...

Q: 1. Complete the preparations of some transuranium elements (elements with atomic numbers greater tha...

A: Radioactive decay: It is a process of losing energy from an unstable element. It releases 1 or more ...

Q: Q1. Name the gaseous organic & inorganic pollutants.Q2.What are the sources of carbon monoxide a...

A: NOTE: We will answer the first question since the exact one was not specified. Please submit a new q...

Q: A fluid is described by the followingGibbs free energy:G(T,P) =aT2+RT ln(P),whereais a substance-spe...

A: Given that, G(T,P) = aT2 + RTlnP where, a is a substance-specific constant. It is required to calcul...

Q: 4. Consider the production of ethylene from the decomposition of ethane as shown in the following re...

A: Given data: Temperature = 1000 0C Pressure = 1 bar

Q: 23. Show that in the limit of infinite dilution, the reduced viscosity and inherent viscosity are eq...

A: Reduced viscosity is defined as the ratio of specific viscosity to the concentration of the substanc...

Q: Estimate the thermal properties of a food with the following composition: carbohydrate 23.6%, protei...

A: (a) Write the expression for specific heat based on Siebel as follows: Cp= 0.837 +3.348H     .....(1...

Q: Oil is heated from 38 to 93°C by flowing inside the 1-in, 16 BWG tubes ofa heat exchanger. Steam con...

A: Given data: Specific heat of oil = 3140J/kgK Flowrate of oil= 1.26kg/s Area inside the heat exchange...

Q: Finding the Effective Diffusivity De Using typical values of DAB , φp , σc ,and τ estimate the effec...

A: The term effective diffusivity is used in case of the diffusions and relations on a catalyst pellet....

Q: The ethanol dehydrogenation reaction (C2H5OH(v) → CH3CHO(v) + H2(g))  is carried out with the feed e...

A: Given:  The ethanol dehydrogenation reaction (C2H5OH(v) → CH3CHO(v) + H2(g))  Ethanol feed = 0.9 or ...

Q: A student experimentally determines the gas law constant, R, by reacting a small piece of magnesium ...

A: Rearranging the gas law,   R = P*V/nT   Technically! We are using Mg not Zinc.   If by any chance it...

Q: about chemistry

A: Given data: Mass of MnO2 = 12.2 g Volume of HCl solution = 70 mL Concentration of HCl solution = 2.5...

Q: Vanadium V, forms various oxides. Which semi-reaction represents an oxidation? Immersive reader

A: Vanadium is a transition metal so it can form various oxidation states. Oxidation states of vanadium...

Q: What is the mass of 13 moles of water vapor 1. 936 g at 200°C and a pressure of 1000 torr? O 2. 468 ...

A: Click to see the answer

Q: 1.10 kg of CO2 occupies a volume of .033 m3 at 300K. Calculate pressure usingi) Ideal gas equation i...

A: Click to see the answer

Q: Acetylenee gas can be produced by slowly reacting Calcium carbide with water. CaC2 (s) + 2H2O (l) → ...

A: The given reaction is as follows: CaC2 (s) + 2H2O (l) → C2H2 (g) + Ca(OH)2 (s) From the given reacti...

Q: Instructions: Round everything to four decimal places . A sphere of radius 5 x 10^-2 cm and density ...

A: Given: Radius of falling sphere = 5*10-2 cm =  0.05*10-2 m             Density of sphere = 1.10 g/cc...

Q: A 100 kmol/h stream that is 97 mole% carbon tetrachloride (CCI14) and 3% carbon disulphide (CS2) is ...

A: Click to see the answer

Q: A reverse-osmosis unit is used to obtain pure water from saline water. The coefficient of water perm...

A: Write the expression for water flux as follows: J = k∆P-∆π     ......(1)   Given, pressure different...

Q: What is the symbol for an ion with: a. 77 protons, 75 electrons, and 116 neutrons b. 117 protons, 17...

A: A) symbol of ion with 77 protons, 75 electrons, and 116 neutrons = ? First steps: Consider the proto...

Q: II. Given the following reaction: Ca + H20 Ca(OH)2 + H2 a. How many moles of Ca are needed to react ...

A: The reaction given is:   Ca + H2O → Ca(OH)2 + H2              …… (1)

Q: How many grams of formaldehyde are in 113.1 mL of a 3.0 M aqueous solution of formaldehyde? The form...

A: Click to see the answer

Q: Instant coffee is produced by dissolving the soluble portion in boiling water in large percolators w...

A: Click to see the answer

Q: Be sure to answer all parts. The U.S. requires automobile fuels to contain a renewable component. Th...

A: Click to see the answer

Q: explain the importance and different uses of cobalt(II) sulphate (CoSO4.7H2O)

A: Click to see the answer

Q: a. the kg of TiO2 ore fed. b. the kg of 45 wt % HC1 solution fed. c. the ratio of recycle stream to ...

A: Ticl4 formed=1Kg=1000g=1000189.7gmoleconversion=75%let moles of TiO2 present in the reactor=athen 0....

Q: A CHM student completing the calorimetry experiment mixes 20.0 mL of 1.10 M HCl (aq) with 20.0 mL of...

A: Given information: Temperature rise, ΔT = 6.611°C Specific heat of the resulting solution, Cp = 4.02...

Q: How many liters of carbon dioxide gas are produced if 0.250 moles of oxygen react completely in the ...

A: Click to see the answer

Q: a. Draw a neat sketch for the reference drawings used for the calculations. b. Estimate the Area, Ve...

A: Click to see the answer

Q: Investigate what happens when an alkene reacts with potassium permanganate as well as when it reacts...

A: Alkene with potassium permanganate and bromine water separately behaves as - 

Q: a. Draw a neat sketch for the reference drawings used for the calculations. b. Estimate the Area, Ve...

A: Click to see the answer

Q: In the production of alternative and natural sweeteners from Stevia, the cleaned leaves at a rate of...

A: It is required to calculate: a. Rate of production of the two final products in tons/year (assume th...

Q: V Verify all applications of Elcectrochemical series to the following cell. erify all applications o...

A: Note: We will answer the first question since the exact one was not specified. Please submit a new s...

Q: Benzaldehyde is produced from toluene by the following catalytic reaction (see figure): Dry air and ...

A: Note: We are authorized to answer three subparts at a time, since you have not mentioned which part ...

Q: There are a quite high numbers of strawberries farm at the north of Iran. They classify the strawber...

A: Given data: We have a machine which separates strawberries into Red and White. The farmer puts 80 st...

Q: The cthanol dehyd rogenation reaction is carried out with the fead entering at 300°C, The feed conta...

A: Given data: The feed entering temperature = 300oC The feed contains 90 mol% ethanol and remaining ac...

Q: Calculate the fugacity of methane as at 322 K and 55 bar, given that the critical constants are 190....

A: Click to see the answer

Q: Continuous Filtration Involving a Recycle Stream The fresh feed F to the process is 10,000 lb/hr of...

A: Click to see the answer