HG/T 4544-2013Method for producing manganese carbonate by recovery and reuse of hydroquinone production waste liquid (English PDF)
对苯二酚生产废液回收再利用生产碳酸锰的方法
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Issued by
MIIT
Level / Type
Industry · Recommended
Issue date
October 17, 2013
Implementation date
March 1, 2014
Scope
HG/T 4544-2013 is the English-translated version of 对苯二酚生产废液回收再利用生产碳酸锰的方法.
HG/T 4544-2013 is the recommended Chinese chemical industry standard describing a method for recovering manganese carbonate from the waste liquid of hydroquinone production. It defines the feed materials, the treatment steps and the indicators of the manganese carbonate so prepared. The method is written for the waste liquor arising where hydroquinone is made by the oxidation of aniline. It quotes HG/T 4203. Placed under the waste treatment heading of the international classification, it belongs with the resource recovery standards of the sector rather than with product specifications. Issued on 17 October 2013, it has applied since 1 March 2014.
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Document preview — HG/T 4544-2013
National Standard of the People's Republic of China
- ICS
- 13.030.20
Issued by: Ministry of Industry and Information Technology of the People's Republic of China
Contents
- 2 Normative references
2 Normative references
HG/T 4544-2013 cites the following standards, which apply in full or in part through the references made to them in its clauses.
HG/T 4203-2011
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
Normative references
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Related Standards
HG/T 4203-2011 — Manganese carbonate for industrial use
HG/T 3066-2025 — Rubber compounding ingredients - Precipitated hydrated silica - Determination of loss on ignition of the dried sample
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