Iron-based active reaction type deoxidizer with high oxidation rate and water locking function and preparation method thereof

Abstract

The invention discloses an iron-based active reaction type deoxidizer with a high oxidation rate and a water locking function and a preparation method thereof. The deoxidizer comprises a dry powder material and a wet material, and the mass ratio of the dry powder material to the wet material is (6.4-8.5):1, wherein the dry powder material is prepared from the following raw materials in parts by mass: 60 to 90 parts of reducing agent, 2 to 5 parts of auxiliary reducing agent, 0.1 to 0.5 part of anhydrous silicon dioxide, 0.1 to 0.5 part of vesuvianite, 2 to 5 parts of electrolyte, 1 to 5 partsof ultrahigh-conductivity crystalline flake graphite and 0 to 5 parts of gold vermiculite. The deoxidizer improves the oxidation rate of iron powder, and is mainly used for water locking. Meanwhile, according to the high-oxidation-rate water locking formula and the preparation method, the problems that deoxidizing agent components release a large amount of heat in the production processes of stirring, mixing, packaging and the like, the material viscosity is high, the gram weight is unstable, and the defective rate is high are solved.

Description

technical field [0001] The invention belongs to the technical field of deoxidizers, and in particular relates to an iron-based active-reaction deoxidizer with a high oxidation rate water-locking function and a preparation method thereof. Background technique [0002] Deoxidizer is also called free oxygen absorber, free oxygen remover, free oxygen scavenger or oxygen scavenger, etc. Its principle is the electrochemical oxygen absorption corrosion of iron powder and oxygen under the catalysis of additives. It is a method of removing free oxygen and dissolved oxygen in the packaging container. It can not only effectively inhibit the deterioration of the contents, but also maintain the original color and fragrance of the food. It can prevent the oxidation and decomposition of the food, and can prevent insect pests and bacteria. , and can maintain the nutritional content of food and prolong the storage period. Therefore, the use of deoxidizers is a method of preserving food with...

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Problems solved by technology

At the same time, it effectively solves the problem of mutual restriction between water and other components of iron-based deoxidizers in the production process and use process (for example: when iron element contacts water molecules, it will start to oxidize and continue to accumulate heat (≥80℃ ), leading to a decrease in the effective content of iron elements and a high rate of defective products; at the same time, the temperature of the material increases and the viscosity increases, which affects the stability of the weight; the temperature increases to accelerate the evaporation of water, which affects the specific gravity of the water, and the leakage of the material, etc.)

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