PROCESS FOR PREPARING CALCIUM POLYSULPHIDE

PROCESS FOR PREPARING CALCIUM POLYSULPHIDE

The invention relates to a process for preparing calcium polysulphide by boiling the hydrated lime with industrial coke sulphur at 95...100°C, for 120 min. In order to prepare a concentrated calcium polysulphide solution having a total sulphur content of 15...22%, the weight ratio sulphur : lime : w...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: ANASTASIU ALEXANDRU, MARTIN ADRIANA, BRÂNZEI EUGEN, DALEA VIORICA, COCHECI VASILE, VLAD LIDIA
Format: Patent
Sprache:eng ; rum
Schlagworte:
CHEMISTRY
COMPOUNDS THEREOF
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
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Beschreibung
Zusammenfassung:The invention relates to a process for preparing calcium polysulphide by boiling the hydrated lime with industrial coke sulphur at 95...100°C, for 120 min. In order to prepare a concentrated calcium polysulphide solution having a total sulphur content of 15...22%, the weight ratio sulphur : lime : water is of 1 : 1.05 : 7.48. Invenţia se referă la un procedeu de obţinere a polisulfurii de calciu, prin fierberea laptelui de var timp de 120 min, la 95...100°C, cu sulf tehnic de cocserie. Pentru obţinerea unei soluţii concentrate de polisulfură de calciu, cu un conţinut de sulf total de 15...22%, raportul în greutate sulf : var : apă este de 1 : 1,05 : 7,48.