9.12-test3 - Making Butyl Acrylate O H C C C O H H C4H9 O...

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10/23/2009 1 Making Butyl Acrylate C C C O O H H H H H O C 4 H 9 + C C C O O H H H C 4 H 9 + H O H Acrylic Acid (AA) Butanol (BuOH) Butyl Acrylate (BA) water What would you do, to maximize the BA, and not waste the AA and BuOH? H ~ 0 Section 9.12 What Rohm and Haas does to make Butyl Acrylate C C C O O H H H C 4 H 9 + H O H Butyl Acrylate (BA) water 1 1.4 C C C O O H H H H H O C 4 H 9 + Acrylic Acid (AA) Butanol (BuOH) H ~ 0 catalyst drew off water by distillation to drive the reaction forward Hmmm load with one reactant, draw off the product LeChatelier’s at work Section 9.12 G o = H o sys - T S o system G o < 0, reaction is extensive (prefers product) G o > 0, reaction is not extensive (prefers reactant) From bonds broken bonds formed or our knowledge of relative Energies of s,l or g for phase transitions From gas out gas in or our knowledge of relative level of disorder for s,l, or g for phase transitions If we know G o , and temperature, we know Keq Gº = -RTlnK If we know Keq, and the concentrations of products and reactants, we can figure out the sign of G, and whether a reaction will be spontaneous or not . This is the chemists job: Will this reaction work? Will this reaction produce 100% product? How can I make this lousy reaction produce 100% pure product? How can I make this reaction go faster to waste less reactor energy? How can I make this reaction go slower and not blow up my reactor and ignite my solvent? I made 10 grams of this. Now I want to make 10,000 lbs. How can I do this safely?
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