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Process flow and technical formula of anthranilic acid

 Last Update: 2021-08-28
 Source: Internet
 Author: User

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3 methylpentanoic acid

6 3 ground

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O-aminobenzenesulfonic acid (o-aminobenzenesulfonic acid) is also known as 2-aminobenzenesulfonic acid.
Its molecular formula is C ₆ H ₇ NO ₃ S, its molecular weight is 173.
19, and its structural formula is

Product performance

Off-white needle-like crystals, industrial products are gray pastes
.

It is soluble in concentrated hydrochloric acid , slightly soluble in water, insoluble in ethanol and ether

2.
Production principle

1) o-chloronitrobenzene method

O-chloronitrobenzene with sodium polysulfide reacts too sulfide, then with sodium hypochlorite oxidation of sulfonyl chloride occurs, hydrolysis products obtained by reduction of the nitro iron
.

2) Aniline method

Sulfonation of aniline and chlorosulfonic acid produces o-aminobenzenesulfonic acid
.

Here is an introduction to the aniline method
.

Process flow

Technical formula (kg/t)

Main equipment

Carbonization reactor, hydrogen chloride absorption tower, steam distillation kettle, concentration crystallization kettle, drying box, storage tank

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