Oxygen scavenger and method for production thereof

A deoxidizer and oxygen absorption technology, applied in the fields of oxygen preparation, separation methods, chemical instruments and methods, etc., can solve the problems of undetectable, can be used in electric stoves, and the service life can be seen immediately, and achieve good oxygen The effect of absorption performance, excellent performance and excellent properties

Inactive Publication Date: 2006-10-11
NAT INST OF ADVANCED IND SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current situation is that it is safe and effective in a wide range of fields, and low-cost, which fully meets various requirements such as non-combustibility, non-detectability by metal detectors, use in electric stoves, and immediate service life. Deoxidizer not yet presented

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] (1) Preparation of deoxidizer from trivalent titanium hydrate

[0052] Add titanium trichloride or titanium tribromide and other trivalent titanium halides, sulfates, nitrates, phosphates, or acetates or organic acid salts such as oxalates and propionic acid or their hydrates in a large excess of water Compounds, or trivalent organic titanium compounds such as trivalent organic titanium compounds coordinated with ammonia, ethylenediamine, etc., alkoxides, or acetylacetonates, or mixtures thereof, are heated under reflux in a nitrogen stream, and hydrolyzed to obtain a blue precipitate. The resulting precipitate was separated with a centrifuge, washed carefully with water, and then separated with a centrifuge. It was put into a drying oven, heated and dried in a nitrogen atmosphere, then placed in two airtight plastic bags (airtight bags) respectively, and taken out. This was weighed to obtain 2.2 g of trivalent titanium hydroxide as dark blue powder.

[0053] (2) Dete...

Embodiment 2

[0060] (1) Preparation of deoxidizer from trivalent titanium hydrate

[0061] Add titanium trichloride or titanium tribromide and other trivalent titanium halides, sulfates, nitrates, phosphates, or acetates, or organic acid salts such as oxalates, propionic acid, etc. Its hydrate, or the trivalent titanium compound or its mixture coordinated with ammonia, ethylenediamine, etc., trivalent organic titanium compound such as alkoxide or acetylacetonate, adjust the pH value, and heat it while refluxing in the nitrogen stream. It is hydrolyzed to give a dark blue precipitate.

[0062] Filter it in a nitrogen stream, wash it with water, transfer it to a desiccator, and completely replace it with nitrogen to make the oxygen concentration in the desiccator less than or equal to 40ppm. Take out the hydroxide of dark blue powder trivalent titanium from the reactor and put it into an airtight plastic bag (airtight bag). In other words, put a small battery-driven electronic balance into...

Embodiment 3

[0072]Carry out the food preservation experiment of deoxidizer in the present embodiment. Laminate polyethylene terephthalate and polyethylene, open small hole and make air-permeable bag (about 6cm * about 6cm), in this bag, add by the 5.0g dark blue that is prepared by the same method as embodiment 1 Hydroxide of trivalent titanium as color powder, while adding a homogeneous mixture prepared by impregnating 2.0 g of water in 3.0 g of synthetic silica (Nitsu Pu Si 1 Lu NS-K manufactured by Japan Sirika Industry Co., Ltd.), and putting it into Airtight plastic pouches are quickly heat-sealed to make deoxidizer products. When using, shake gently to make it even, and then tear the airtight plastic pouch to use.

[0073] Quickly add the unsealed pouch of the deoxidizer product and 80g waffle biscuits into the airtight transparent bag, heat seal the opening, draw out the internal air with a syringe, and re-inject 500ml of air with the syringe. When withdrawing and injecting with ...

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Abstract

The present invention provides a novel oxygen scavenger and a method for producing the oxygen scavenger, and relates to the oxygen scavenger comprising as an active component a hydroxide of trivalent titanium, or a hydroxide of trivalent titanium being added with water or mixed with a water-containing substance, and to a method for producing the oxygen scavenger which comprises adding water by spraying or some other method to a hydroxide of trivalent titanium, or mixing a powder such as silica or alumina immersed in water with a hydroxide of trivalent titanium, and according to the present invention, it is possible to produce and provide a novel oxygen scavenger having numerous advantages, such as that it is highly safe, does not affect metal detectors and other such devices, exhibits excellent oxygen absorption performance and high oxygen absorption rate, can be used in microwave ovens, and the expiration date thereof can be readily ascertained, and is therefore favorable for the storage of foods and a wide range of other articles.

Description

technical field [0001] The present invention relates to a new deoxidizer, and in more detail, relates to a new deoxidizer containing trivalent titanium hydroxide as an active ingredient and a preparation method thereof. In the technical field of deoxidizers used in the preservation of food products such as processed food and agricultural and aquatic products, industrial products such as metal products and precision machines, medicines, arts and crafts, and cultural property, the present invention provides The existing iron-based and organic deoxidizers have the same or even higher excellent oxygen absorption capacity and oxygen absorption speed, and are highly safe. At the same time, they can ensure that the problems of existing deoxidizers are eliminated, and endow new products that existing products do not have. Functional trivalent titanium hydroxide as an active ingredient of a novel deoxidizer. The present invention provides a novel deoxidizer that does not affect metal ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/06A23L3/3436C01B13/02
CPCB01J20/06C01B13/0281A23L3/3436C01B13/0262A23L3/34B01D53/14
Inventor 垰田博史
Owner NAT INST OF ADVANCED IND SCI & TECH
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