Hummel, J. J. (John James), d. 1902 · London : Cassell · leaf 112
manufacture ofcarbonate of potash fi*om Tolk, devised by H. Fischer. The concenti^ted jolk solution is first put into thetank a and warmed bv the waste heat of the furnace.Sometimes tank a is situated at a high level and theconcentrated yolk solution is led into the chimney, whereit trickles down… … Fig 3*.—5txu<,ii i r .iri^.^.fe :or -i.-iiiii? x0.ji-s.5a. tank a into the evaporating chamber 6, and when partlyevaporated here, it is led by a connecting pipe into thecalcining chamber c, whei^ it is evaporated down to athick syrupy consistency. Very soon, owing to theorganic matter contained…
Dyes and dyeing
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