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What is the method for separate out the mixture of Ethyl acetate...
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+ Separation technology
+ Organic chemistry
+ Solvent extraction
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Jukka Lukkari
What is the method for separate out the mixture of Ethyl acetate...
it is highly impossible but by factional distillation with 6-12 feet projected column . only 25-40 % will be recover pure solvents. first collect THF at below 70 degree temperature then collect mixture at 70-75 degree and collect final fraction Ethyl acetate at above 75 degree
it is highly impossible but by factional distillation with 6-12 feet projected column . only 25-40 % will be recover pure solvents. first collect THF at below 70 degree temperature then collect mixture at 70-75 degree and collect final fraction Ethyl acetate at above 75 degree
Dear Bruce, Would it be possible to describe in detail how you are going to make the extraction in the lab and what is the organic phase that you are going to use? Thanks, rafik
Dear Bruce, Would it be possible to describe in detail how you are going to make the extraction in the lab and what is the organic phase that you are going to use? Thanks, rafik
Hi, Does anyone know is there a possibility for the separation of ethyl acetate and lube oil? Different methods such as distillation, extraction,... are acceptable.
Hi, Does anyone know is there a possibility for the separation of ethyl acetate and lube oil? Different methods such as distillation, extraction,... are acceptable.
Ethyl acetate (EA) is less soluble (8.7g/100g) in water than tetrahydrofuran (THF, solubility 100g/100g) see link. Repeated extractions with water should allow for the removal of most of the THF from the ethyl acetate. https://www.erowid.org/archive/rhodium/pdf/solvent.miscibility.pdf
Ethyl acetate (EA) is less soluble (8.7g/100g) in water than tetrahydrofuran (THF, solubility 100g/100g) see link. Repeated extractions with water should allow for the removal of most of the THF from the ethyl acetate. https://www.erowid.org/archive/rhodium/pdf/solvent.miscibility.pdf
Dear sir, Tnanx for your quick reply. Ethyl acetate and THF having homogeneous azeotrope and facing problem to separate out. i have done fractional distillation and collected 4-5 fractions , but in last fraction also 7% THF carrying out. similarly i have done water washing to mixture to separate out the THF but it is also difficult after 4-5 times water washing to the mixture. pl let me know any hybrid method to remove the THF
Dear sir, Tnanx for your quick reply. Ethyl acetate and THF having homogeneous azeotrope and facing problem to separate out. i have done fractional distillation and collected 4-5 fractions , but in last fraction also 7% THF carrying out. similarly i have done water washing to mixture to separate out the THF but it is also difficult after 4-5 times water washing to the mixture. pl let me know any hybrid method to remove the THF
I would extract the ethyl acetate:THF mixture directly 3 or more times with water containing between 1 and 3M NaCl to remove the THF from the ethyl acetate. I would use at least 25% of the total volume as the volume of aqueous phase. You will have to experiment to see what concentration of salt and what aqueous:organic ratio is best for the extraction.
I would extract the ethyl acetate:THF mixture directly 3 or more times with water containing between 1 and 3M NaCl to remove the THF from the ethyl acetate. I would use at least 25% of the total volume as the volume of aqueous phase. You will have to experiment to see what concentration of salt and what aqueous:organic ratio is best for the extraction.
Below is given an article that describes how to separate ethyl acetate from ethanol (quite trouble-some unless absolutely necessary). Few patents are issued at USPTO on the same subject - US5993610 , US4569726 patents and more. "Separation of Ethyl Acetate−Ethanol Azeotropic Mixture Using Hydrophilic Ionic Liquids" - for Google-search
Below is given an article that describes how to separate ethyl acetate from ethanol (quite trouble-some unless absolutely necessary). Few patents are issued at USPTO on the same subject - US5993610 , US4569726 patents and more. "Separation of Ethyl Acetate−Ethanol Azeotropic Mixture Using Hydrophilic Ionic Liquids" - for Google-search
Dear Venkat, If you use a long column in the fractional distillation the chances to get a separation will be very high. Additionally, if the last fraction still contains both solvents, you can re-distill this fraction. Please note that petroleum refineries use distillation to separate crude oil where the difference in boiling points between the components is smaller than in your case. I believe that using a long column will solve the problem. Good luck, Rafik
Dear Venkat, If you use a long column in the fractional distillation the chances to get a separation will be very high. Additionally, if the last fraction still contains both solvents, you can re-distill this fraction. Please note that petroleum refineries use distillation to separate crude oil where the difference in boiling points between the components is smaller than in your case. I believe that using a long column will solve the problem. Good luck, Rafik
For vapor-liquid equilibrium data on the tetrahydrofuran - ethyl acetate system, see: H.S. Wu, S.I. Sandler, "Vapor-liquid equilibria of tetrahydrofuran systems", J. Chem. Eng. Data, 33(2) 1988, pp. 157–162; http://pubs.acs.org/doi/abs/10.1021/je00052a030
For vapor-liquid equilibrium data on the tetrahydrofuran - ethyl acetate system, see: H.S. Wu, S.I. Sandler, "Vapor-liquid equilibria of tetrahydrofuran systems", J. Chem. Eng. Data, 33(2) 1988, pp. 157–162; http://pubs.acs.org/doi/abs/10.1021/je00052a030
it is highly impossible but by factional distillation with 6-12 feet projected column .
only 25-40 % will be recover pure solvents.
first collect THF at below 70 degree temperature
then collect mixture at 70-75 degree
and collect final fraction Ethyl acetate at above 75 degree
it is highly impossible but by factional distillation with 6-12 feet projected column .
only 25-40 % will be recover pure solvents.
first collect THF at below 70 degree temperature
then collect mixture at 70-75 degree
and collect final fraction Ethyl acetate at above 75 degree
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Dear Bruce,
Would it be possible to describe in detail how you are going to make the extraction in the lab and what is the organic phase that you are going to use?
Thanks,
rafik
Dear Bruce,
Would it be possible to describe in detail how you are going to make the extraction in the lab and what is the organic phase that you are going to use?
Thanks,
rafik
More
VOTE
Hi,
Does anyone know is there a possibility for the separation of ethyl acetate and lube oil? Different methods such as distillation, extraction,... are acceptable.
Hi,
Does anyone know is there a possibility for the separation of ethyl acetate and lube oil? Different methods such as distillation, extraction,... are acceptable.
More
VOTE
Ethyl acetate (EA) is less soluble (8.7g/100g) in water than tetrahydrofuran (THF, solubility 100g/100g) see link. Repeated extractions with water should allow for the removal of most of the THF from the ethyl acetate.
https://www.erowid.org/archive/rhodium/pdf/solvent.miscibility.pdf
Ethyl acetate (EA) is less soluble (8.7g/100g) in water than tetrahydrofuran (THF, solubility 100g/100g) see link. Repeated extractions with water should allow for the removal of most of the THF from the ethyl acetate.
https://www.erowid.org/archive/rhodium/pdf/solvent.miscibility.pdf
More
VOTE
Dear sir,
Tnanx for your quick reply.
Ethyl acetate and THF having homogeneous azeotrope and facing problem to separate out.
i have done fractional distillation and collected 4-5 fractions , but in last fraction also 7% THF carrying out.
similarly i have done water washing to mixture to separate out the THF but it is also difficult after 4-5 times water washing to the mixture.
pl let me know any hybrid method to remove the THF
Dear sir,
Tnanx for your quick reply.
Ethyl acetate and THF having homogeneous azeotrope and facing problem to separate out.
i have done fractional distillation and collected 4-5 fractions , but in last fraction also 7% THF carrying out.
similarly i have done water washing to mixture to separate out the THF but it is also difficult after 4-5 times water washing to the mixture.
pl let me know any hybrid method to remove the THF
More
VOTE
I would extract the ethyl acetate:THF mixture directly 3 or more times with water containing between 1 and 3M NaCl to remove the THF from the ethyl acetate. I would use at least 25% of the total volume as the volume of aqueous phase. You will have to experiment to see what concentration of salt and what aqueous:organic ratio is best for the extraction.
I would extract the ethyl acetate:THF mixture directly 3 or more times with water containing between 1 and 3M NaCl to remove the THF from the ethyl acetate. I would use at least 25% of the total volume as the volume of aqueous phase. You will have to experiment to see what concentration of salt and what aqueous:organic ratio is best for the extraction.
More
VOTE
Below is given an article that describes how to separate ethyl acetate from ethanol (quite trouble-some unless absolutely necessary). Few patents are issued at USPTO on the same subject - US5993610 , US4569726 patents and more.
"Separation of Ethyl Acetate−Ethanol Azeotropic Mixture Using Hydrophilic Ionic Liquids" - for Google-search
Below is given an article that describes how to separate ethyl acetate from ethanol (quite trouble-some unless absolutely necessary). Few patents are issued at USPTO on the same subject - US5993610 , US4569726 patents and more.
"Separation of Ethyl Acetate−Ethanol Azeotropic Mixture Using Hydrophilic Ionic Liquids" - for Google-search
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ok thanx sir i will it get back you
ok thanx sir i will it get back you
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Dear Venkat,
If you use a long column in the fractional distillation the chances to get a separation will be very high. Additionally, if the last fraction still contains both solvents, you can re-distill this fraction.
Please note that petroleum refineries use distillation to separate crude oil where the difference in boiling points between the components is smaller than in your case.
I believe that using a long column will solve the problem.
Good luck,
Rafik
Dear Venkat,
If you use a long column in the fractional distillation the chances to get a separation will be very high. Additionally, if the last fraction still contains both solvents, you can re-distill this fraction.
Please note that petroleum refineries use distillation to separate crude oil where the difference in boiling points between the components is smaller than in your case.
I believe that using a long column will solve the problem.
Good luck,
Rafik
More
VOTE
For vapor-liquid equilibrium data on the tetrahydrofuran - ethyl acetate system, see: H.S. Wu, S.I. Sandler, "Vapor-liquid equilibria of tetrahydrofuran systems", J. Chem. Eng. Data, 33(2) 1988, pp. 157–162; http://pubs.acs.org/doi/abs/10.1021/je00052a030
For vapor-liquid equilibrium data on the tetrahydrofuran - ethyl acetate system, see: H.S. Wu, S.I. Sandler, "Vapor-liquid equilibria of tetrahydrofuran systems", J. Chem. Eng. Data, 33(2) 1988, pp. 157–162; http://pubs.acs.org/doi/abs/10.1021/je00052a030
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