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Method and Arrangement to Reduce Autoflash and Slurry Migration in Autoclave Flash Systems
Method and Arrangement to Reduce Autoflash and Slurry Migration in Autoclave Flash Systems
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机译:减少高压釜闪蒸系统中的自动闪蒸和浆液迁移的方法和装置
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摘要
The present invention relates to a method and an arrangement for pressure and temperature let down of autoclave discharge slurry, in particular in pressure oxidation or high pressure acid leach of metal containing ore. The method of the invention comprises a step of precooling the autoclave discharge slurry by contacting the autoclave discharge slurry with a cooling fluid for reducing the temperature of the autoclave discharge slurry prior to its entry into the first flash stage. The invention further relates to an autoclave (1) and pressure let-down arrangement adapted for providing cooling fluid to the autoclave discharge slurry prior its entry into the first flash vessel (2).
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