| 摘要 |
PCT No. PCT/FI86/00049 Sec. 371 Date Dec. 16, 1986 Sec. 102(e) Date Dec. 16, 1986 PCT Filed May 16, 1986 PCT Pub. No. WO86/07104 PCT Pub. Date Dec. 4, 1986.A method of recovering alkaline chemicals from a material containing sodium or potassium compounds. The material is gasified by an external heat source after which the gas is rapidly cooled by arranging it to contact with cooled solid particles separated from the gas.
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