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Method for testing COD (chemical oxygen demand) of organic matters in iron-containing waste hydrochloric acid
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Production method of reagent-grade ferric trichloride
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Method for producing flaky crystalline ferric chloride
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Method for producing granular crystalline ferric chloride by air cooling and freezing
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Method for preparing polyaluminium chloride and water glass by using FCC (fluid catalytic cracking) waste catalyst
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Method for rapidly determining acidity of high-concentration metal ion solution
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Corridor type waste alloy cutter head dissolving device and dissolving method thereof
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Method for simultaneously detecting multiple trace elements in iron-containing waste acid
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Method for recovering and preparing aluminum-containing compound and sulfite from aluminum-containing waste alkali liquor
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Method for simultaneously detecting contents of trace As, Pb, Cd, Zn, Cr, Co and V elements in ferric trichloride
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Method for simultaneously detecting contents of trace As, Pb, Cd, Zn and Cr elements in ferrous chloride
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Production method of granular crystalline ferric chloride
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Comprehensive utilization method of high-aluminum-content waste alkali liquor
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Process for producing ferric chloride or polyferric chloride by continuous oxygen oxidation method
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Waste nitric acid treatment method
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Preparation method of powdery polyferric chloride solid
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Preparation method of large-particle ferric chloride hexahydrate
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Preparation method of ferrous chloride tetrahydrate
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Method for producing blocky polyferric chloride solid
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Method for preparing high-purity ferrous iron by using heavy metal ions in ferrous solution precipitated by sodium sulfide solid
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