Production principle and process flow of 1-amino-4-bromoanthrone-2-sulfonic acid

1-amino-4-bromo-anthraquinone-2-sulfonic acid (1-amino-4-bromo-anthraquinone-2-sulfonic acid) is also known as bromamine acid, and its molecular formula is C ₁₄ H ₈ BrNO ₅ S, The molecular weight is 382.
19, and the structural formula is

1.
Product performance

Red needle-like crystal, soluble in water, toxic
.

2.
Production principle

The production of bromamic acid is generally by 1-aminoanthraquinone in o-dichlorobenzene medium, sulfonated with fuming sulfuric acid or chlorosulfonic acid, and then steam distilled to remove dichlorobenzene
.

3.
Process flow

4.
Technical formula (kg/t)

5.
Main equipment

Sulfonated gold, distillation pot (vacuum system), bromination pot, filter, dissolving pot, salting out pot
.

6.
Production process

Add 990kg o-dichlorobenzene and 171.
5kg 100% 1-aminoanthraquinone into the sulfonation kettle
.

In the bromination pot, first naturally cool the sulfonated diluent to 50～55℃, and then add ice to quickly cool it to 0～2℃
.

The obtained filter cake was stirred evenly with water, and heated to 95°C to dissolve it
.