Bivalent iron compounds

Details Bivalent iron compounds Bivalent iron compounds

1999-06-07

2001-10-23

Koslow, C. Melissa (Department: 1755)

Compositions: coating or plastic

Coating or plastic compositions

Corrosion inhibiting coating composition

C106S014150, C106S014120, C106S014180, C106S018320, C106S015050, C424S070100, C424S648000, C252S389530, C252S394000, C252S400530, C252S392000, C252S405000, C252S403000, C252S401000, C252S374000, C510S119000, C510S130000, C510S401000, C510S402000, C510S479000

Reexamination Certificate

active

06306201

ABSTRACT:

FIELD OF THE TECHNOLOGY
This invention relates to a bivalent iron compound which can be utilized widely in various applications such as for healthy growth of animals and plants, promotion of biological activities, treatment of diseases, quality preservation of foods, prevention of perishing, prevention of molding, prevention of corrosion and modification or purification of water and air.
TECHNICAL BACKGROUND
As disclosed in Japanese Provisional Patent Publication No. 190226/1984, when a bivalent or tervalent iron salt to be obtained by introducing a tervalent iron salt to a large amount of strongly alkaline aqueous solution or by introducing a bivalent iron salt into a large amount of strongly acidic aqueous solution is dissolved in water, it converts the water to a specific nonionic reaction system. It is also known that such salt inhibits various ionic reactions which occur in ordinary water systems and exhibits specific and even miraculous actions and effects against the objects to be treated. In other words, it is known that such iron salts exhibit antiseptic actions, metal corrosion inhibitory actions and soil trouble removing actions as well as physiological actions such as antivirus actions, antitumor actions and immunological actions.
It is true that the bivalent or tervalent iron salts have excellent properties as described above. However, the bivalent iron salts suffer a problem that they are particularly susceptible to oxidation and cannot maintain their original excellent properties since their effects are halved after one month from production, which has been a serious problem in practical applications.
Therefore, it is an object of this invention to provide a bivalent iron compound that overcomes the above problem and is capable of exhibiting the excellent properties as described above over a long time.
DISCLOSURE OF THE INVENTION
In order to solve the above problem, this invention provides a bivalent iron compound containing a bivalent iron salt, an amino acid and a reducing material.
When the present bivalent iron compound is applied to animals or plants, their biological activities and growth are promoted. When the bivalent iron compound is applied to foods, it can prevent them from perishing and maintain their freshness for a long time. It also shows therapeutic actions against diseases. Besides, the bivalent iron compound has an action of modifying or purifying soil, water and air, an antistatic action, a frictional resistance reducing action, a concrete reinforcing action, a snow melting action, etc.
The bivalent iron compound can be converted into a chemically stable substance by adding an amino acid thereto. Further, oxidation of the bivalent iron salt can be prevented considerably by the addition of a reducing material. The various actions inherent in the bivalent iron salt as described above can be maintained for a long time by the synergistic effect to be brought about by the combination of the reducing material and amino acid.
It is preferred to dissolve the bivalent iron salt in water to provide an aqueous solution. When the bivalent iron compound is dissolved in water, the actions of the bivalent iron salt can effectively be exhibited. It is not known why the aqueous bivalent iron salt solution can exhibit such actions effectively. However, it can be considered that the aqueous solution inhibits various ionic reactions which occur in ordinary water systems and exhibits a specific action of converting the water systems into nonionic reaction systems.
Further, it is preferred to treat inorganic materials with the aqueous bivalent iron salt solution by dipping. When an inorganic material is dip-treated in the aqueous bivalent iron salt solution, the bivalent iron compound can be carried stably by the inorganic material. The thus treated inorganic material exhibits a water purifying action, an air purifying action and a gasoline modifying action.
Next, typical examples of each material will be described. The bivalent iron salt includes inorganic salts such as iron dichloride (FeC
2
), iron sulfate (FeSO
4
), iron dinitrate (Fe(NO
3
)
2
) and triiron diphosphate (Fe
3
(PO
4
)
2
), and organic acid salts such as iron diformate (Fe(HCOO)
2
), iron diacetate (Fe(CHCOO) ), iron dipropionate (Fe(CH
3
CHOO)
2
), iron oxalate (FeC
2
O
4
), iron tartrate (FeC
4
H
4
O
6
) iron fumarate (FeC
4
H
2
O
4
) and iron dilactate (Fe(CH
3
CHOHCOO)
2
).
In addition to the above, a reaction mixture of a tervalent iron salt and a reducing material to be described later can be used as the bivalent iron salt. The tervalent iron salt includes inorganic salts such as iron trichloride (FeCl
3
), diiron trisulfate (Fe
2
(SO
4
)
3
), iron trinitrate (Fe (NO
3
)
3
), iron phosphate (FePO
4
), diiron diammonium tetrasulfate (Fe
2
(NH
4
)
2
(SO
4
)
4
), and organic acid salts such as iron triformate (Fe(HCOO)
3
), iron triacetate (Fe(CH
3
COO)
3
), iron citrate (FeC
6
H
5
O
7
) and iron tristearate (Fe(C
17
H
35
COO)
3
).
The amino acid includes monoamino-monocarboxylic acids such as glycine, alanine, leucine, tyrosine, threonine, serine, proline tryptophan, methionine, cystine and cysteine; monoamino-dicarboxylic acids such as asparagic acid and glutamic acid; and diamino-monocarboxylic acids such as lysine, arginine and histidine. It should be noted, however, that the amino acid is preferably added in an amount sufficient to react with the bivalent iron salt to form an organic complex and the like.
The reducing material includes aldehydes such as formaldehyde, acetaldehyde, formic acid and benzaldehyde; saccharides (sugars) such as cane sugar (sucrose), glucose and lactose; ascorbic acid, &agr;-tocopherol; and metals such as iron, zinc and copper. The reducing material is preferably added in an amount sufficient to retain the bivalent iron salt in the bivalent form or to reduce the tervalent iron salt to a bivalent salt.
The inorganic material includes metals such as iron, zinc and copper, ceramics and inorganic salts. The ceramics include zeolite, alumina, silicon carbide, silicon nitride and cordierite.
PREFERRED EMBODIMENT OF THE INVENTION
Now typical embodiments of this invention will be described by way of Preparation Examples 1 to 3 in which bivalent iron salt solutions are prepared and Examples 1 to 41 in which the solutions are applied in various applications.
First, Preparation Examples 1 to 3 will be described.


REFERENCES:
patent: 2-142760 (1990-05-01), None

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