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lime slaking [1 record]
Record 1 - internal organization data 1993-06-15
Record 1, English
Record 1, Subject field(s)
- Pulp and Paper
Record 1, Main entry term, English
- lime slaking
1, record 1, English, lime%20slaking
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- slaking 2, record 1, English, slaking
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
The mixing of lime (CaO) with water (H2O) to form lime water or calcium hydroxide (Ca(OH)2). In the causticizing process of a sulfate pulp mill recovery cycle, it is the mixing of lime with green liquor. 2, record 1, English, - lime%20slaking
Record 1, French
Record 1, Domaine(s)
- Pâtes et papier
Record 1, Main entry term, French
- extinction de la chaux
1, record 1, French, extinction%20de%20la%20chaux
correct, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- hydratation de la chaux 2, record 1, French, hydratation%20de%20la%20chaux
correct, feminine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 OBS
Régénération de la liqueur au sulfate. Au bas de la chambre de combustion se trouve le creuset (hearth), où l'on recueille les sels de sodium en fusion (molten smelt). Ces sels sont immédiatement dissous dans une cuve pour donner la liqueur verte (green liquor), qui est essentiellement une solution de carbonate de sodium et de sulfure de sodium. Après décantation dans un clarificateur (clarifier, thickener), la liqueur verte passe dans un bac extincteur de chaux (slaker, slaker-classifier), où on la mélange à de la chaux vive (CaO) pour convertir le carbonate de sodium en hydroxyde de sodium (caustification). Il se produit en fait deux réactions : la chaux vive subit d'abord une hydratation, ou extinction (slaking), en réagissant sur l'eau, puis la chaux hydratée, ou chaux éteinte, réagit sur le carbonate de sodium (soda ash) pour donner de l'hydroxyde de sodium, ou soude (caustic soda), et du carbonate de calcium. 2, record 1, French, - extinction%20de%20la%20chaux
Record 1, Spanish
Record 1, Textual support, Spanish
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