info about vanillin last

8/9/2019 Info About Vanillin Last

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Vanillin from G

• Names of team members, roll no,etc.


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Vanillin

• Vanillin is a phenolic aldehyde.

• It is primarily extracted from vanilla bean.

• Synthetic vanillin is used more often as a avouringagent and pharmaceuticals. It is due to cost factor,high prot margin and scarcity of naturally availablevanillin compared to the demand.

• he rst commercial synthesis of vanillin began !iththe more readily available natural compound

eugenol.• oday, articial vanillin is made either from guaiacol

or from lignin or other biotechnological methods li#erice stra! or !heat grass..etc

http://en.wikipedia.org/wiki/Eugenolhttp://en.wikipedia.org/wiki/Guaiacolhttp://en.wikipedia.org/wiki/Ligninhttp://en.wikipedia.org/wiki/Ligninhttp://en.wikipedia.org/wiki/Guaiacolhttp://en.wikipedia.org/wiki/Eugenol


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Various Synthetic routes of Vanillin

from Guaiacol


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$utline of the %rocessOH

OCH3

OH

OCH3

OH

AcOH AcOH

OH

OCH3

CHO

+ H2O

HCHO/ IER Air/Co(OAc)2


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&uic# 'evie! of physicalprops

mp bp Solubility inwater

MoC

Guaiacol () * +( - (/ - 0)g12 30/ -4 SS*+5

6cetic 6cid 07 * 0) - 008 * 009-

'eadilysoluble incold, hot!ater

SS*+5

%araformaldehyde

0( * 0)-

/mg12 308-4

%*Vanillyl

alcohol

00( * 00/

-

SS*+5

-obalt 6cetate :ecomposes at0-

'eadilysoluble incold !ater

Vanillin 8 - (8/ - 00 g12 3(/ -4 SS-304

;ant some more columns li#e suitable


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%rocess =lo! :iagram

>ydroxy*methylation

i4 6c$>ii4 Guaiacoliii4 6mberlyst*0/iv4 %araformaldehy

de

=ilter 6mberlyst*0/

$xidationi4 -o3$6c4(ii4 6ir

:istillation

6c$>

6mberlyst * 0/


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:issolving catalyst inminimum amount of !ater


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A@uipment =lo! Sheet

6c$> 3SS*+54

Guaiacol 3SS*+54

%araformaldehyde6mberlyst*0/

SS*+5 'eactor

?Vanillin

SS*+56utoclave


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-ondensing

steam

6c$>?!ater?traces of>-$$>

!ater 3>:%A4

6@ueous 2ayer

? catalyst

%%*='%

SS*+5=ractionationassembly

Vanillin

SS*+5


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-osting and Aconomics

Chemical Molarbasis

Weight/Volume

Cost Total cost

Guaiacol 0 .0(5 #g +08 's1#g +9.5+( 's

%ara*formaldehyd

e

0./ .+0/ #g 8/ 's1#g (.7))/ 's

Glacialacetic acid

.+ lit 3.+05)#g4

5/ 's1#g 05.07 's

6mberlyst*0/

.0/ #g 0's1#g

0/ 's

-obaltacetatetetrahydrate

.(59 #g /0 '1#g 0.() 's1#g


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6ssuming recovery

Chemical Weight/Volume

%eco!ery

"mountreco!ere#

Cost per$g

Costreco!ere#

6ceticacid

.+05) #g 8/ .(7) #g 5/ 's 0(.+ 's

6mberlyst*0/

.0/ #g 9/ .05(/#g

0 's 05.(/ 's

-obaltacetatetetrahydr

ate

.(59#g

98 .(55#g

/0 's 0.(55/ 's


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• $verall yield B Cield ofhydroxymethylation D Cield of oxidation B

• 0 mole Guaiacol gives moles ofVanillin B #g Vanillin

• 3otal cost E -ost recovered413 #g ofVanillin4 B 'a! material cost B

rocess &iel# e'erence>ydroxymethylation

$xidation


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info about vanillin last

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