Bisphenol A → HCID 68133037, compound

HRID 543912Notes

Reaction equation

HRID 543912 reaction equation
[OH:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]([C:11]2[CH:16]=[CH:15][C:14]([OH:17])=[CH:13][CH:12]=2)([CH3:10])[CH3:9])=[CH:4][CH:3]=1>O>[OH2:1].[CH3:10][C:8]([C:5]1[CH:4]=[CH:3][C:2]([OH:1])=[CH:7][CH:6]=1)([C:11]1[CH:16]=[CH:15][C:14]([OH:17])=[CH:13][CH:12]=1)[CH3:9]

Participants

3

Reactant 1

HCID 6623Bisphenol A

Product 1

HCID 68133037HCID 68133037, compound

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

Another sample of purified BPA crystals was obtained by the batch-wise process described in copending application Ser. No. 443,344 filed Nov. 15, 1982 utilizing less organic washing solvent than is preferred for that process. Molten crude bisphenol-A (I.A. 2.00, impurities 4% by weight including phenol) was mixed with 2 parts of water. The mixture was cooled gradually to crystallize bisphenol-A and form a water/BPA crystal slurry when the temperature in the crystallizer reached 65° C., 1/2 part of toluene per part of crude bisphenol-A on a weight basis was added to the mixture. After agitating the bisphenol-A crystals/water/toluene mixture for 10 minutes, the mixture was allowed to settle. Three phases were observed. The top phase was decanted and the bisphenol-A crystals were recovered from the remaining water/bisphenol-A crystal slurry with the help of a basket centrifuge. The recovered bisphenol-A crystals had an I.A. value of 0.15 and negligable detectable impurities. The mother liquor aqueous liquid had 0.5 weight percent phenol and trace quantities of calibrated impurites associated with bisphenol-A.

Workup

  1. temperatureThe mixture was cooled gradually
  2. customto crystallize bisphenol-A

Sources & evidence

ORD record
ord-57b8585a4c6049359b4f23896aa6c299
Source dataset
uspto-grants-1984_05
Patent number
US04447655

Reaction notes

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