Process and equipment for recovering waste alkali liquor containing aluminum and heavy metals

Process and equipment for recovering waste alkali liquor containing aluminum and heavy metals

The invention provides a process and equipment for recovering alkali liquor containing aluminum and heavy metals. The process is used for recovering waste alkali liquor generated in a chemical milling treatment process of an aluminum alloy. The process comprises the following steps: removing impurit...

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Hauptverfasser: PENG JIANCHANG, CHEN LONG, ZOU SONGHUA, ZHANG XINYU, WANG SHUAIDONG, XU MENG, WANG JIANJUN, SHANG HONGSHUAI
Format: Patent
Sprache:chi ; eng
Schlagworte:
CHEMISTRY
METALLURGY
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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creator PENG JIANCHANG
CHEN LONG
ZOU SONGHUA
ZHANG XINYU
WANG SHUAIDONG
XU MENG
WANG JIANJUN
SHANG HONGSHUAI
description The invention provides a process and equipment for recovering alkali liquor containing aluminum and heavy metals. The process is used for recovering waste alkali liquor generated in a chemical milling treatment process of an aluminum alloy. The process comprises the following steps: removing impurities; removing aluminum; and disassembling a bipolar membrane to obtain an acid solution and an alkali solution. The recovering equipment is used for recycling waste alkali liquor generated in the aluminum alloy chemical milling treatment process. The equipment comprises a chemical milling tank, an impurity removal tank, a pH adjusting tank, a first salt tank, a second salt tank, a bipolar membrane stack, an acid tank and an alkali tank. The acid solution is used for pH adjustment in the aluminum removal step, and the alkali solution is used for chemical milling treatment of aluminum alloy. According to the process and equipment for recovering the waste alkali liquor containing aluminum and heavy metal, the recyclin
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The process is used for recovering waste alkali liquor generated in a chemical milling treatment process of an aluminum alloy. The process comprises the following steps: removing impurities; removing aluminum; and disassembling a bipolar membrane to obtain an acid solution and an alkali solution. The recovering equipment is used for recycling waste alkali liquor generated in the aluminum alloy chemical milling treatment process. The equipment comprises a chemical milling tank, an impurity removal tank, a pH adjusting tank, a first salt tank, a second salt tank, a bipolar membrane stack, an acid tank and an alkali tank. The acid solution is used for pH adjustment in the aluminum removal step, and the alkali solution is used for chemical milling treatment of aluminum alloy. 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The process is used for recovering waste alkali liquor generated in a chemical milling treatment process of an aluminum alloy. The process comprises the following steps: removing impurities; removing aluminum; and disassembling a bipolar membrane to obtain an acid solution and an alkali solution. The recovering equipment is used for recycling waste alkali liquor generated in the aluminum alloy chemical milling treatment process. The equipment comprises a chemical milling tank, an impurity removal tank, a pH adjusting tank, a first salt tank, a second salt tank, a bipolar membrane stack, an acid tank and an alkali tank. The acid solution is used for pH adjustment in the aluminum removal step, and the alkali solution is used for chemical milling treatment of aluminum alloy. 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The process is used for recovering waste alkali liquor generated in a chemical milling treatment process of an aluminum alloy. The process comprises the following steps: removing impurities; removing aluminum; and disassembling a bipolar membrane to obtain an acid solution and an alkali solution. The recovering equipment is used for recycling waste alkali liquor generated in the aluminum alloy chemical milling treatment process. The equipment comprises a chemical milling tank, an impurity removal tank, a pH adjusting tank, a first salt tank, a second salt tank, a bipolar membrane stack, an acid tank and an alkali tank. The acid solution is used for pH adjustment in the aluminum removal step, and the alkali solution is used for chemical milling treatment of aluminum alloy. According to the process and equipment for recovering the waste alkali liquor containing aluminum and heavy metal, the recyclin</abstract><oa>free_for_read</oa></addata></record>
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subjects CHEMISTRY
METALLURGY
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
title Process and equipment for recovering waste alkali liquor containing aluminum and heavy metals
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