发明名称 |
Process for producing an aqueous solution comprising ferric chloride |
摘要 |
The present invention provides a process for preparing an aqueous solution of FeCl3. The process involves the steps of: (a) reacting an ore material comprising titanium and iron with chlorine and coke to form a metal chloride vapor stream comprising titanium tetrachloride, ferrous chloride, ferric chloride and unreacted coke and ore solids; (b) cooling the metal chloride vapor stream to a temperature in the range of 350 to 500 DEG C. to condense at least some of the ferrous chloride; (c) separating the condensed ferrous chloride and the unreacted coke and ore solids from the metal chloride vapor stream; (d) cooling the metal chloride vapor stream to a temperature in the range of 180 to 240 DEG C. to form a precipitate comprising ferric chloride; and (e) adding the precipitate to water to form an aqueous solution comprising ferric chloride. The resulting aqueous solution has a high FeCl3 content, and can be used in wastewater treatment applications.
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申请公布号 |
US5935545(A) |
申请公布日期 |
1999.08.10 |
申请号 |
US19970893437 |
申请日期 |
1997.07.11 |
申请人 |
E. I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
LEARY, KEVIN J.;PLISCHKE, JUERGEN KURT;OWEN, JOHN LARSON;STECHER, JOHN ROBERT |
分类号 |
C01G49/10;C22B34/12;(IPC1-7):C01G9/02 |
主分类号 |
C01G49/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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