Hydrochloric Acid → Terephthalic Acid

HRID 378590

Reaction equation

HRID 378590 reaction equation
[C:1]([O-:12])(=[O:11])[C:2]1[CH:10]=[CH:9][C:5]([C:6]([O-:8])=[O:7])=[CH:4][CH:3]=1.[Na+].[Na+].Cl>>[C:1]([OH:12])(=[O:11])[C:2]1[CH:10]=[CH:9][C:5]([C:6]([OH:8])=[O:7])=[CH:4][CH:3]=1

Participants

3

Reactant 2

HCID 313Hydrochloric AcidHCID 82305Disodium terephthalate

Product 1

HCID 7489Terephthalic Acid

Procedure

An aqueous solution of disodium terephthalate, passed through adsorption tower (4), was transferred to neutralization tank (5). Then, the solution was stirred by agitator (5a) in neutralization tank and added slowly with hydrochloric acid and incessantly until the pH of solution became 4.0. As a result of monitoring by SEM, the particle size of terephthalic acid formed from said neutralization process, its particle size (10 to 15 μm) was very small.

Workup

  1. customAs a result of monitoring by SEM

Sources & evidence

ORD record
ord-82a85a09a69847b0ac6bb12aac74ddfd
Source dataset
uspto-grants-2000_02
Patent number
US06031128

Linked notes

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