CN1061322C - 蓄电池脱硫剂再生方法 - Google Patents

蓄电池脱硫剂再生方法 Download PDF

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CN1061322C
CN1061322C CN98113901A CN98113901A CN1061322C CN 1061322 C CN1061322 C CN 1061322C CN 98113901 A CN98113901 A CN 98113901A CN 98113901 A CN98113901 A CN 98113901A CN 1061322 C CN1061322 C CN 1061322C
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ammonia water
regenerating
ammonium carbonate
calcium hydroxide
ammonium
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CN1206748A (zh
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绍春岩
祁国恕
金丛阳
蒋桂华
鼓万寿
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Shenyang Academy Environmental Sciences
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Shenyang Academy Environmental Sciences
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract

本发明提供一种蓄电池脱硫剂再生的新方法,它首先使硫酸铵与氢氧化钙反应生成硫酸钙和氨水,再用氨水吸收二氧化碳就可再生成脱硫剂碳酸铵;整个再生过程工艺简单,对设备要求低,且采用氢氧化钙作再生原料,成本低,因此适用于大范围推广使用。

Description

蓄电池脱硫剂再生方法
本发明涉及一种蓄电池脱硫剂再生的方法,特别是用蓄电池脱硫后产生的硫酸铵再生碳酸铵的新方法。
废旧蓄电池里含有大量的硫酸铅,如果不除掉,在铅回收的过程中会产生大量二氧化硫污染环境,另一方面由于有硫酸铅的存在还会迫使提高冶炼温度,增加能耗。为了避免硫的存在对铅回收冶炼的影响,现有的铅回收工艺一般在冶炼前增设了一道脱硫工序,脱硫剂溶液可采用碳酸铵溶液,脱硫后生成硫酸铵溶液,为了降低成本,实现碳酸铵的循环使用,硫酸铵还需再生成碳酸铵,另外,在除了铅回收以外某些工业过程中,也需要把其生成的硫酸铵再生成碳酸铵,然而目前尚无有效的解决措施。
本发明的目的是提供一种工艺简单,成本低,转化率高的新型硫酸铵再生碳酸铵方法。
本发明的目的是这样实现的:
(1)首先将脱硫后生成的硫酸铵溶液放入反应釜中加入氢氧化钙,在加热或搅拌条件下反应0.5-4小时,生成硫酸钙和氨水;
(2)用氨水吸收二氧化碳,就得到碳酸铵溶液。
本发明采用氢氧化钙用于对硫酸铵的再生,成本低,整个工艺设备简单,且反应的付产品少,转化率高,因此实用性高,便于推广应用。
下面结合实施例详述本发明的具体内容。
实施例1
首先将脱硫后生成的硫酸铵溶液置于反应釜中,加入氢氧化钙,在加热条件或搅拌条件下反应1-2小时,生成硫酸钙沉淀和氨水,在此步反应中硫酸铵转化为氨水的转化率为80%,化学反应如下:
过滤除掉硫酸钙沉淀,得到氨水,然后用氨水吸收二氧化碳,得到碳酸铵溶液。此步反应氨水转化为碳酸铵的转化率为100%,化学反应如下:
实施例2
将脱硫后的溶液硫酸铵放入反应器中加入氢氧化钙,通入蒸汽以反应器加热0.8小时,同时水蒸汽与溶液中挥发出来的氨气结合氨水,在此步反应中硫酸铵转化为氨水的转化率为80%,化学反应如下:
将生成的氨水导出与二氧化碳混合,使其反应生成碳酸铵,导入吸收缶中得到碳酸铵溶液即可,此步反应氨水转化为碳酸铵的转化率为100%,化学反应如下:

Claims (1)

1.一种蓄电池脱硫剂再生方法,其特征是:
(1)首先将脱硫后生成的硫酸铵溶液放入反应釜中加入氢氧化钙,在加热或搅拌条件下反应0.5-4小时,生成硫酸钙和氨水;
(2)用氨水吸收二氧化碳,就得到碳酸铵溶液。
CN98113901A 1998-04-10 1998-04-10 蓄电池脱硫剂再生方法 Expired - Fee Related CN1061322C (zh)

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CN98113901A CN1061322C (zh) 1998-04-10 1998-04-10 蓄电池脱硫剂再生方法

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CN1061322C true CN1061322C (zh) 2001-01-31

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CN105280976A (zh) * 2014-10-27 2016-01-27 李洪亮 一种废旧铅酸蓄电池环保高效处理方法

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