METHOD OF STABILIZATION OF PEROXISALTS OF ALKALI METALS Russian patent published in 2005 - IPC

FIELD: food industry; production of oxygen-containing bleaching agents and synthetic detergents.

SUBSTANCE: the invention is intended for a chemical industry and may be used at production of oxygen-containing bleaching agents and synthetic detergents. The method provides, that solid particles of the paroxysmal are exposed to vacuumizing at a residual pressure of no more than 13.33 kPa, mainly at 0.67÷8.5 kPa with simultaneous heating up to 55°C, up to 40÷50° C. Then it is treated with a noble gas at atmospheric or excessive pressure of no more than 10 kPa. The mass share of active oxygen (in mass %) is no less than 14.00, stability of the finished product is no less than 59,92 %.

EFFECT: the invention ensures a high stability of alkali metals peroxisalts.

4 cl, 1 dwg, 1 tbl