info about vanillin last
TRANSCRIPT
-
8/9/2019 Info About Vanillin Last
1/13
Vanillin from G
• Names of team members, roll no,etc.
-
8/9/2019 Info About Vanillin Last
2/13
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
-
8/9/2019 Info About Vanillin Last
3/13
Various Synthetic routes of Vanillin
from Guaiacol
-
8/9/2019 Info About Vanillin Last
4/13
$utline of the %rocessOH
OCH3
OH
OCH3
OH
AcOH AcOH
OH
OCH3
CHO
+ H2O
HCHO/ IER Air/Co(OAc)2
-
8/9/2019 Info About Vanillin Last
5/13
&uic# 'evie! of physicalprops
mp bp Solubility inwater
MoC
Guaiacol () * +( - (/ - 0)g12 30/ -4 SS*+5
6cetic 6cid 07 * 0) - 008 * 009-
'eadilysoluble incold, hot!ater
SS*+5
%araformaldehyde
0( * 0)-
/mg12 308-4
%*Vanillyl
alcohol
00( * 00/
-
SS*+5
-obalt 6cetate :ecomposes at0-
'eadilysoluble incold !ater
Vanillin 8 - (8/ - 00 g12 3(/ -4 SS-304
;ant some more columns li#e suitable
-
8/9/2019 Info About Vanillin Last
6/13
%rocess =lo! :iagram
>ydroxy*methylation
i4 6c$>ii4 Guaiacoliii4 6mberlyst*0/iv4 %araformaldehy
de
=ilter 6mberlyst*0/
$xidationi4 -o3$6c4(ii4 6ir
:istillation
6c$>
6mberlyst * 0/
-
8/9/2019 Info About Vanillin Last
7/13
:issolving catalyst inminimum amount of !ater
-
8/9/2019 Info About Vanillin Last
8/13
A@uipment =lo! Sheet
6c$> 3SS*+54
Guaiacol 3SS*+54
%araformaldehyde6mberlyst*0/
SS*+5 'eactor
?Vanillin
SS*+56utoclave
-
8/9/2019 Info About Vanillin Last
9/13
-ondensing
steam
6c$>?!ater?traces of>-$$>
!ater 3>:%A4
6@ueous 2ayer
? catalyst
%%*='%
SS*+5=ractionationassembly
Vanillin
SS*+5
-
8/9/2019 Info About Vanillin Last
10/13
-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
-
8/9/2019 Info About Vanillin Last
11/13
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
-
8/9/2019 Info About Vanillin Last
12/13
• $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
-
8/9/2019 Info About Vanillin Last
13/13