Vinyl Acetate → Phthalic Anhydride

HRID 1168126Notes

Reaction equation

HRID 1168126 reaction equation
[Cs].C(OC=C)(=[O:4])C.[C:8]([O:21][CH:22]=[CH2:23])(=[O:20])[CH2:9][CH2:10][CH2:11][CH2:12][CH2:13]CCCCCC>O>[C:22]1(=[O:4])[O:21][C:8](=[O:20])[C:9]2=[CH:10][CH:11]=[CH:12][CH:13]=[C:23]12

Participants

5

Reactant 3

HCID 7904Vinyl AcetateHCID 75069Vinyl laurateHCID 5354618Cesium

Product 1

HCID 6811Phthalic Anhydride

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

For the preparation of the catalysts, 11.3 g of V2O5, 70.8 g of TiO2 (BET 8 m2/g), 17.7 g of TiO2 (BET 200 m2/g) and 0.2 g of cesium (as CsCO3) were suspended in 400 ml of demineralized water and stirred for 18 hours to obtain a homogeneous distribution. 1.5 g of organic binder, consisting of a copolymer of vinyl acetate and vinyl laurate in the form of a 50% strength by weight aqueous dispersion, were added to this suspension. The suspension obtained was then sprayed onto 1203 g of steatite rings, having in each case two notches in the upper side and two notches in the lower side, and was dried. The notches were offset by 90 degrees relative to one another. The rings had dimensions of 7×7×4 mm and the notch width was 1.4 mm and the notch depth 2 mm.

Workup

  1. customto obtain a homogeneous distribution
  2. additionwere added to this suspension
  3. customThe suspension obtained
  4. customwas dried
  5. customwere offset by 90 degrees relative to one

Sources & evidence

ORD record
ord-b2feed96470747fb9f4eb1452eeac75a
Source dataset
uspto-grants-2003_09
Patent number
US06624114B1

Reaction notes

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