Reaktion von Kaolinit mit Kaliumhydroxid | Zendy

Sticher H. | Zendy; Bach R. | Zendy

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Reaktion von Kaolinit mit Kaliumhydroxid

Author(s) -

Sticher H.,

Bach R.

Publication year - 1969

Publication title -

helvetica chimica acta

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.74

H-Index - 82

eISSN - 1522-2675

pISSN - 0018-019X

DOI - 10.1002/hlca.19690520221

Subject(s) - chemistry , aluminosilicate , potassium hydroxide , potassium , kaolinite , induction period , amorphous solid , hydroxide , nuclear chemistry , inorganic chemistry , mineralogy , organic chemistry , catalysis

The reaction of kaolinite with potassium hydroxide (1 to 9N) was investigated between 70 and 90°C. During a first period of the reaction the content of Si and Al in solution increased and reached a maximum in 100 to 240 minutes, depending on KOH concentration and temperature; then an amorphous aluminosilicate gel formed. After an induction period, again depending on KOH concentration and temperature, the concentrations of Si and Al decreased rapidly, due to the formation of a crystalline potassium aluminosilicate.

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