THE TREATMENT OF HYDROCHLORIC-ACID WASTE PICKLE LIQUORS

被引：9

作者：

NEGRO, C ^{[1
]}

BLANCO, P

DUFOUR, J

LATORRE, R

FORMOSO, A

LOPEZ, F

机构：

[1] UNIV COMPLUTENSE MADRID, DEPT CHEM ENGN, MADRID, SPAIN

[2] IRON & STEELMAKING UEI, NATL CTR MET RES, MADRID, SPAIN

来源：

JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-ENVIRONMENTAL SCIENCE AND ENGINEERING & TOXIC AND HAZARDOUS SUBSTANCE CONTROL | 1993年 / 28卷 / 08期

关键词：

PICKLE LIQUORS; IRON OXIHYDROXIDES; FE(II) ELIMINATION; OXIDATION;

D O I：

10.1080/10934529309375969

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The aim of this publication is to put forward a process for treating hydrochloric acid waste pickle liquors produced in steel-rolling processes. The most suitable process for treating these liquors first involves recovering the acid they contain, so that this may be recirculated to the pickling baths. Processes currently exist for recovering hydrochloric acid, and in percentage terms are able to recover up to 90% of the acid, but these processes still leave behind a waste stream with a high iron content which also needs to be dealt with. The recovery of iron from the liquor is carried out by means of an oxyprecipitation reaction, using air as oxidizing agent and ammonia as basic agent.

引用

页码：1651 / 1667

页数：17

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