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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