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Water containing permanganate ions and its production method

A technology of permanganate and manufacturing method, applied in the direction of manganate/permanganate, dissolution method, chemical instrument and method, etc., can solve the problem of disappearance of permanganate ion

Active Publication Date: 2019-05-31
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, when permanganate ions are prepared by dissolving a permanganate compound such as potassium permanganate in water, there is a problem that the permanganate ions are reduced and disappear in a short period of time.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Ozone microbubbles were generated in distilled water using a commercially available two-phase flow rotary microbubble generator (a small bubble generator manufactured by Aquaea Co., Ltd.) capable of generating mainly microbubbles with a particle size of 5 to 50 μm. Ozone gas is adopted in the following manner: a commercially available oxygen source ozone generator will be used at about 30g / Nm 3 The ozone gas prepared at a concentration of 100 mg / L was supplied to the microbubble generating device at about 1 L / min, so that the ozone concentration in the water became about 10 mg / L. After confirming that the oxidation-reduction potential of water was continuously increased from the original about +500mV by the continuous generation of ozone microbubbles, 10 minutes after reaching +600mV, ferric ammonium citrate of 10 μM as an organic iron compound, as 50 mM sodium chloride as an inorganic salt and 10 μM manganese chloride as a divalent manganese compound were dissolved, an...

Embodiment 2

[0038] Ozone microbubbles were generated in distilled water using a commercially available pressurized dissolution system microbubble generator (A-02 manufactured by Resource Development Research Institute Co., Ltd.) capable of generating mainly microbubbles with a particle diameter of 5 to 50 μm. Ozone gas is adopted in the following manner: a commercially available oxygen source ozone generator will be used at about 30g / Nm 3 The ozone gas prepared at a concentration of 100 mg / L was supplied to the microbubble generating device at about 1 L / min, so that the ozone concentration in the water became about 10 mg / L. After confirming that the oxidation-reduction potential of water was continuously increased from the original about +500mV by the continuous generation of ozone microbubbles, 10 minutes after reaching +600mV, ferric ammonium citrate of 10 μM as an organic iron compound, as 50 mM sodium chloride as an inorganic salt and 10 μM manganese nitrate as a divalent manganese co...

Embodiment 3

[0040] The permanganate ion-containing water of the present invention was produced in the same manner as in Example 1, except that ferric fulvate was dissolved instead of ferric ammonium citrate.

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Abstract

An object of the present invention is to provide water in which permanganate ions stably exist for a long period of time and a method for producing the same. The water containing permanganate ion of the present invention as its solution is that the use concentration is 1~300g / Nm 3 It is prepared by dissolving 0.1μM-1mM divalent manganese compound, 0.1μM-1mM organic iron compound, and 1-300mM inorganic salt in water that generates ozone microbubbles. The half-life of the permanganate ion of the permanganate ion-containing water of the present invention is, for example, 3 months or more when the permanganate ion-containing water filled in a sealed container under atmospheric pressure is stored at a temperature of 40° C. Permanganate ion-containing water produced by dissolving a permanganate compound in water has a common point of containing permanganate ions, but has significantly different properties.

Description

technical field [0001] The present invention relates to water containing permanganate ions and its production method. Background technique [0002] Permanganate ion (MnO 4 － : VII) is well known as an oxidizing agent for various oxidation reactions, and methods for purifying soil and groundwater using the oxidizing action have also been proposed (Patent Document 1). In addition, the use of permanganate ion as a bactericide and a deodorant is also known. However, when permanganate ions are prepared by dissolving a permanganate compound such as potassium permanganate in water, there is a problem that the permanganate ions are reduced and disappear within a short period of time. [0003] prior art literature [0004] patent documents [0005] Patent Document 1: Japanese Patent Laid-Open No. 2003-104727 Contents of the invention [0006] The problem to be solved by the invention [0007] Therefore, an object of the present invention is to provide water in which permanga...

Claims

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Application Information

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IPC IPC(8): C01G45/12C02F1/50C02F1/72C02F1/78
CPCC02F1/72C02F2303/26C02F1/78C01G45/1207C02F2201/784C02F2303/02C02F2303/04B01F23/2373B01F21/02B01F23/23105B01F25/10B01F23/237613B01F2101/48C02F1/50A61L9/01C02F1/68
Inventor 高桥正好
Owner NAT INST OF ADVANCED IND SCI & TECH