T/CSAIA 002-2021
DSD acid (4,4'-diaminostilbene-2,2'disulfonic acid) to produce regenerated sulfuric acid (English Version)

Standard No.

T/CSAIA 002-2021

Language

Chinese, Available in English version

Release Date

2021

Published By

Group Standards of the People's Republic of China

Latest

T/CSAIA 002-2021

Scope

The technical requirements for the production of regenerated sulfuric acid from DSD acid require that the appearance of colorless to light yellow liquid sulfuric acid (H2SO4) ω/% ≥ 50 ash content ω/% ≤ 0.1 TOC (calculated as C) (g/L) ≤ 2.8

T/CSAIA 002-2021 history

• 2021 T/CSAIA 002-2021 DSD acid (4,4'-diaminostilbene-2,2'disulfonic acid) to produce regenerated sulfuric acid