A process for preparing Cooking Liquor that has a High sulfidez for decoction of sulfate Pulp

摘要

The present Invention relates to a method for preparing, under reducing conditions, Cooking Liquor with a High sulfidez decoction for sulphate Pulp,Where The Black Liquor is formed in the process of Cooking Is FED, after Evaporation, completely or parcialamente,A reactor that operates at a temperature which is obtained by increasing the supply of Energy from an external source of heat and / or the release of Energy from black Liquor.A Foundry which consists essentially in Sodium Sulphide is formed and removed to be additionally processed in cooking Liquor, wherein in addition,Feed to the Reactor all or part of the materials containing Sulfur and / or containing Sulphur and sodium present in the Pulp Mill.Including the Chemical ingredients of Training that contain Sulfur and / or containing sodium and sulfur Chemical ingredient used for the balance sheet total Pulp Mill,So that the molar ratio of sodium to Sulfur in the total mixture Fed to the reactor is within the range of 1.5 to 4.