KR20150080792A - Producing method of hydrated potassium carbonate for animal feeds - Google Patents

Producing method of hydrated potassium carbonate for animal feeds Download PDF

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Publication number
KR20150080792A
KR20150080792A KR1020140000278A KR20140000278A KR20150080792A KR 20150080792 A KR20150080792 A KR 20150080792A KR 1020140000278 A KR1020140000278 A KR 1020140000278A KR 20140000278 A KR20140000278 A KR 20140000278A KR 20150080792 A KR20150080792 A KR 20150080792A
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South Korea
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potassium carbonate
potassium
hydrated
hydrate
bicarbonate
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KR1020140000278A
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Korean (ko)
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장우성
한웅
조예현
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주식회사 유니드
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Priority to KR1020140000278A priority Critical patent/KR20150080792A/en
Priority to PCT/KR2014/000789 priority patent/WO2015102146A1/en
Publication of KR20150080792A publication Critical patent/KR20150080792A/en

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    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K20/00—Accessory food factors for animal feeding-stuffs
    • A23K20/20—Inorganic substances, e.g. oligoelements
    • A23K20/22—Compounds of alkali metals
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K10/00—Animal feeding-stuffs
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K20/00—Accessory food factors for animal feeding-stuffs
    • A23K20/20—Inorganic substances, e.g. oligoelements

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Animal Husbandry (AREA)
  • Zoology (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Inorganic Chemistry (AREA)
  • Fodder In General (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

The present invention provides a manufacturing method of hydrated potassium carbonate for animal feed, which comprises a step of obtaining hydrated potassium carbonate containing potassium bicarbonate by reacting carbon dioxide with a reaction solution selected from the group consisting of anhydrous potassium carbonate, an aqueous solution of potassium carbonate, water, and steam. The hydrated potassium carbonate of the present invention manufactured by a manufacturing method of hydrated potassium carbonate for animal feed comprises potassium bicarbonate inside hydrated potassium carbonate, thereby minimizing temperature elevation during manufacturing feed. In addition, discoloration and quality deterioration of feed can be prevented by comprising potassium bicarbonate capable of a buffer action of an ion for lowering a pH.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of producing a carbohydrate,

The present invention relates to a method for producing a hydrate potassium carbonate for animal feed, and more particularly to a method for producing a hydrate potassium carbonate for animal feed containing potassium bicarbonate.

Potassium carbonate is used as a cation control agent in the cation-anion control process of cattle feed, and anhydrous potassium carbonate and hydrate potassium carbonate are examples of raw materials for potassium carbonate. Anhydrous potassium carbonate and hydrate potassium carbonate have a problem in that when producing cow feed, heat is generated by reacting with water contained in hay and the like to cause discoloration of the feed.

In addition, there is a problem that the pH of the hydrate potassium carbonate used in the cattle feed is high, thereby deteriorating the discoloration and quality of the feed.

Korean Patent Application No. 10-2013-0054907 U.S. Patent No. 6,409,982

It is an object of the present invention to provide a method for preparing a hydrate of potassium carbohydrate for animal feed, which contains potassium bicarbonate, thereby reducing the exothermic temperature of the animal feed and decreasing the alkalinity of the animal feed.

In order to solve the above-mentioned problems, the present invention provides a method for preparing potassium bicarbonate-containing hydrate potassium carbonate by reacting carbon dioxide with a reaction solution selected from the group consisting of anhydrous potassium carbonate, potassium carbonate aqueous solution, water and steam, The present invention also provides a method for producing a hydrate of potassium carbonate.

In one embodiment of the present invention, the potassium bicarbonate may be 0.01 to 50% by weight based on the total weight of the hydrate potassium carbonate.

In one embodiment of the present invention, the potassium carbonate may be anhydrous potassium carbonate or a hydrate potassium carbonate represented by the following formula.

K 2 CO 3 .nH 2 O (0 <n? 1.5) (Equation 1)

(In the above formula 1, n is the number of moles of water molecules contained in the hydrated potassium carbonate particles, n of each of the hydrated potassium carbonate particles may be different from each other, or n of all the hydrated potassium carbonate particles may be the same. )

In one embodiment of the present invention, the potassium carbonate aqueous solution may be in a concentration of 0.1 to 50% by weight.

In an embodiment of the present invention, the carbon dioxide may be supplied from a gas having a carbon dioxide content of 1.0 to 100.0% by volume based on the total volume of the gas.

In one embodiment of the present invention, the reaction temperature may be 1 to 99 ° C.

In one embodiment of the present invention, the hydrated potassium carbonate containing potassium bicarbonate may have 90% or more of particles having a particle size of 0.1 mm or more.

In one embodiment of the present invention, the hydrated potassium carbonate containing the pulverized potassium bicarbonate may have 90% or more of particles having a particle size of 0.1 mm or less.

In an embodiment of the present invention, the animal feed hydrate potassium carbonate may contain potassium bicarbonate to reduce the exothermic effect.

The hydrate potassium carbonate produced by the process for producing an animal feed hydrate potassium carbonate of the present invention can contain potassium bicarbonate in the hydrate potassium carbonate to minimize the temperature rise during the production of the feed and contain potassium bicarbonate capable of ion- Thereby lowering the pH and preventing discoloration and quality deterioration of the feed.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a graph showing changes in heating temperature of potassium bicarbonate-containing hydrate potassium carbonate according to an embodiment of the present invention. FIG.
FIG. 2 is a graph showing the pH of potassium bicarbonate-containing hydrate potassium carbonate according to an embodiment of the present invention. FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail to facilitate those skilled in the art to which the present invention pertains.

The present invention relates to a process for preparing potassium carbonate monohydrate for animal feed comprising reacting carbon dioxide with a reaction solution selected from the group consisting of anhydrous potassium carbonate, potassium carbonate aqueous solution, water and steam to obtain potassium bicarbonate-containing potassium carbonate, to provide.

That is, anhydrous potassium carbonate (A); A reaction solution (B) selected from the group consisting of aqueous potassium carbonate solution, water and steam; And carbon dioxide (C) as a reaction material to produce a hydrate potassium carbonate containing potassium bicarbonate.

In the present invention, the potassium carbonate may be anhydrous potassium carbonate or a hydrate potassium carbonate represented by the following formula.

K 2 CO 3 .nH 2 O (0 <n? 1.5) (Equation 1)

(In the above formula 1, n is the number of moles of water molecules contained in the hydrated potassium carbonate particles, n of each of the hydrated potassium carbonate particles may be different from each other, or n of all the hydrated potassium carbonate particles may be the same. )

Preferably, the potassium carbonate may be anhydrous potassium carbonate.

In the present invention, the reaction solution means a solution selected from the group consisting of an aqueous solution of potassium carbonate, water and steam.

The aqueous potassium carbonate solution may be an aqueous solution having a concentration of 0.1 to 50% by weight, preferably 19 to 48% by weight. If the concentration of the potassium carbonate aqueous solution exceeds 50 wt%, the reaction time with CO 2 becomes small, and the concentration of potassium bicarbonate can be low or not detected.

In the present invention, water means pure distilled water. In the present invention, water may be at a temperature of 0 to 99 캜.

In the present invention, the steam may be in the form of vapor of water, having a pressure of 0.1 to 10 kgf. When the pressure of 10 kgf is exceeded, excess steam is supplied, excess water remains on the anhydrous potassium carbonate surface, and the amount of steam to be volatilized is increased, which is condensed on the reactor wall, which may make it difficult to control the particle size. Also, the steam may be at a temperature of 100.1 to 250 ° C.

The feed rate of the potassium carbonate aqueous solution, water or steam may be 2 to 500 ml / min, preferably 15 to 400 ml / min. The charging rate is a rate at which a 1.5-equivalent amount of hydrate potassium carbonate is introduced for 1 hour, and the charging rate may be changed depending on the amount of the initial anhydrous potassium carbonate.

In the present invention, the carbon dioxide may be supplied from a gas having a carbon dioxide content of 1.0 to 100.0% by volume based on the total volume of the gas. Preferably the carbon dioxide feed gas is 1.0 to 50% by volume of carbon dioxide, more preferably 1.0 to 20% by volume. When the carbon dioxide supplying gas contains less than 1.0% by volume of carbon dioxide, there is a problem that the content of potassium bicarbonate is less than 0.01% by weight.

The supply amount of carbon dioxide may be 1 to 50 equivalents, preferably 10 to 30 equivalents, based on the synthesis amount of potassium bicarbonate.

In addition, the rate of introduction of the carbon dioxide gas may be 5 to 50 sccm / min, and preferably 15 to 45 sccm / min.

Potassium carbonate (A); A reaction solution (B) selected from the group consisting of aqueous potassium carbonate solution, water and steam; And carbon dioxide (C), the mixing ratio of potassium carbonate (A): reaction solution (B): carbon dioxide (C) may be 60 to 90:60 to 90: 1 to 30 by weight.

The anhydrous potassium carbonate (A); A reaction solution (B) selected from the group consisting of aqueous potassium carbonate solution, water and steam; And carbon dioxide (C) may be 1 to 99 캜, preferably 30 to 80 캜, more preferably 60 to 80 캜. If the reaction temperature is less than 1 ° C, the reaction temperature is low and the content of potassium bicarbonate becomes small. If the reaction temperature is more than 99 ° C, the content of potassium bicarbonate decreases because moisture is evaporated and the reaction with CO 2 is interrupted.

The anhydrous potassium carbonate (A); A reaction solution (B) selected from the group consisting of aqueous potassium carbonate solution, water and steam; And carbon dioxide (C), potassium bicarbonate-containing hydrate potassium carbonate can be obtained.

In the present invention, the potassium bicarbonate may be 0.01 to 50% by weight based on the total weight of the hydrate potassium carbonate. Preferably 2.0 to 50% by weight, more preferably 6.0 to 40% by weight. When the content of potassium bicarbonate is less than 0.01% by weight, the pH is high and the heating temperature with water is high. When the amount of the potassium is more than 50% by weight, the content of potassium is low, and therefore, there is a problem that a lot of products must be added in order to adjust the potassium to be consumed in the cow.

Also, the produced potassium bicarbonate-containing hydrate potassium carbonate may have 90% or more of particles having a particle size of 0.1 mm or more.

The manufacturing method of the present invention may include the step of crushing the hydrate potassium carbonate contained in the produced potassium bicarbonate. The crushed potassium bicarbonate-containing hydrate potassium carbonate may have 90% or more of particles having a particle size of 0.1 mm or less.

The potassium bicarbonate-containing hydrate potassium carbonate produced by the production method of the present invention is used for animal feed. In the present invention, the animal may be a mammal, specifically a bovine, a horse or the like, preferably a bovine.

The potassium bicarbonate-containing hydrate potassium carbonate prepared by the production method of the present invention has a lower alkalinity than that of the existing hydrate potassium carbonate and can be a pH of 11.5 or less, specifically, a pH of 10.5 to 11.5. Preferably pH 11.2 or less, and specifically pH 10.5 to 11.2. When the pH is 11.5, there may be a problem of discoloration and quality deterioration of the feed.

Also, potassium bicarbonate-containing hydrate potassium carbonate produced by the production method of the present invention contains potassium bicarbonate, so that the exothermic effect can be minimized. Generally, anhydrous potassium carbonate and hydrate potassium carbonate are used to produce heat in reaction with moisture contained in hay and the like when preparing cow feed, which causes discoloration of the feed. The present invention can minimize the temperature rise in the production of feed by containing potassium bicarbonate in the hydrate potassium carbonate.

The present invention is based on the fact that carbon dioxide, which was not used in the production of animal feeds in the prior art, is used as a reactant and contains potassium bicarbonate, so that its pH is lower than that of conventional products, It has the advantage of suppressing the browning effect caused by the reaction with hay because of low temperature.

The present invention will be described in more detail through the following examples. However, the examples are for illustrating the present invention, and the scope of the present invention is not limited thereto.

[Example]

500 g of anhydrous potassium carbonate as a raw material was prepared. 85 g of distilled water (DIW), 105 g of 19 wt% K 2 CO 3 and 160 g of 48 wt% K 2 CO 3 were prepared as reaction solutions. Gases having CO 2 / air ratio (volume) of 10%, 50% and 100%, respectively, were prepared as reaction gases. The reaction solution was fed at a feed rate of 10 ml / min and the reaction gas was fed at an feed rate of 30 sccm / min. The reaction temperature was 30 to 70 ° C.

1-1. Determination of potassium bicarbonate content according to the type of reaction solution

Raw materials Anhydrous potassium carbonate (500 g) was reacted with 100% carbon dioxide gas as a reaction gas and the reaction solution shown in the following Table 1 at a reaction temperature of 30 ° C. As a result, the content of potassium bicarbonate and potassium carbonate in the resulting hydrated potassium carbonate was measured. The results are shown in Table 1 below.

The reaction liquid (g) KHCO 3 content (wt%) K 2 CO 3 content (wt%) Distilled water 85g 8.65 82.05 19 wt% K 2 CO 3 105 g 10.68 67.54 48 wt% K 2 CO 3 160 g 32.88 41.75

1-2. Determination of potassium bicarbonate content according to the concentration of carbon dioxide gas

Raw material Anhydrous potassium carbonate (500 g) was reacted with 160 g of 48 wt% K 2 CO 3 as a reaction solution and the carbon dioxide gas shown in Table 2 at a reaction temperature of 30 ° C. As a result, the content of potassium bicarbonate and potassium carbonate in the resulting hydrated potassium carbonate was measured. The results are shown in Table 2 below.

CO 2 concentration (CO 2 / gas ratio) KHCO 3 content (wt%) K 2 CO 3 content (wt%) 10% 4.38 77.90 50% 15.22 70.57 100% 32.88 41.75

1-3. Determination of potassium bicarbonate content by reaction temperature

To 500 g of anhydrous anhydrous potassium carbonate, 105 g of a 19 wt% K 2 CO 3 as a reaction solution and 10 g of a gas having a CO 2 / air ratio (volume) of 10% as a reaction gas were reacted at reaction temperatures of 30, 40, 50, Lt; 0 &gt; C. As a result, the content of potassium bicarbonate and potassium carbonate in the resulting hydrated potassium carbonate was measured. The results are shown in Table 3 below.

No. Reaction temperature (캜) KHCO 3 content (wt%) K 2 CO 3 content (wt%) One 30 2.01 83.37 2 40 3.86 82.25 3 50 5.29 80.66 4 60 6.21 78.91 5 70 7.45 76.46

[Experimental Example 1] Heating temperature measurement of a hydrate potassium carbonate containing potassium bicarbonate

The change of the exothermic temperature was measured for the hydrate potassium carbonate containing hydrate and potassium bicarbonate. Specifically, measurements were made on 1, 3, and 5 of Table 3 above. Comparative Examples was measured with respect to the K 2 CO 3 100% by weight and K 2 CO 3 87.68% by weight. In the measurement method, 100 g of H 2 O was added to 100 g of each sample, and the change of the heating temperature was measured by time.

The results are shown in Fig.

[Experimental Example 2] Measurement of pH of hydrate potassium carbonate containing potassium bicarbonate

The pH was determined for the hydrate potassium carbonate containing hydrate and potassium bicarbonate. Specifically, measurements were made for the conditions 1, 3, and 5 of Table 3 above. As a comparative example, K 2 CO 3 was also measured for 100% by weight and 87.68% by weight. The pH was measured by adding 99g of H 2 O to 1g of each sample.

The results are shown in Fig.

Claims (11)

A process for preparing potassium carbonate of an animal feed, comprising the steps of reacting carbon dioxide with a reaction solution selected from the group consisting of anhydrous potassium carbonate, an aqueous potassium carbonate solution, water and steam, to obtain a hydrate potassium carbonate containing potassium bicarbonate. The method according to claim 1,
Wherein the potassium bicarbonate is contained in an amount of 0.01 to 50% by weight based on the total weight of the hydrated potassium carbonate. The method according to claim 1,
Wherein the potassium carbonate is anhydrous potassium carbonate or a hydrate potassium carbonate represented by the following formula.
K 2 CO 3 · nH 2 O (0 <n≤1.5) ( Equation 1)
(In the above formula 1, n is the number of moles of water molecules contained in the hydrated potassium carbonate particles, n of each of the hydrated potassium carbonate particles may be different from each other, or n of all the hydrated potassium carbonate particles may be the same. ) The method according to claim 1,
Wherein the aqueous solution of potassium carbonate is in a concentration of 0.1 to 50 wt%. The method according to claim 1,
Wherein the carbon dioxide is supplied from a gas having a carbon dioxide content of 1.0 to 100.0% by volume based on the total volume of the gas. The method according to claim 1,
Wherein the reaction temperature is 1 to 99 占 폚. The method according to claim 1,
Wherein said potassium bicarbonate-containing hydrate potassium carbonate is 90% or more of particles having a particle size of 0.1 mm or more. The method according to claim 1,
The method according to claim 1, further comprising pulverizing the hydrated potassium carbonate containing potassium bicarbonate. 9. The method of claim 8,
Wherein the hydrated potassium carbonate containing the pulverized potassium bicarbonate is 90% or more of particles having a particle size of 0.1 mm or less. The method according to claim 1,
Wherein said potassium bicarbonate-containing hydrate potassium carbonate has a pH of 11.5 or less. The method according to claim 1,
Wherein the animal feed hydrate potassium carbonate reduces the exothermic action of potassium bicarbonate.
KR1020140000278A 2014-01-02 2014-01-02 Producing method of hydrated potassium carbonate for animal feeds KR20150080792A (en)

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PCT/KR2014/000789 WO2015102146A1 (en) 2014-01-02 2014-01-28 Method for preparing hydrated potassium carbonate for animal feed

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US4919910A (en) * 1988-08-17 1990-04-24 Church & Dwight Co., Inc. Process for the production of potassium bicarbonate
DE4308610C1 (en) * 1993-03-18 1994-06-09 Huels Chemische Werke Ag Calcined, hydrated potash prodn. - with dust recycling by mixing with initial centrifuged salt
US5449506A (en) * 1993-06-16 1995-09-12 K-Technologies, Inc. Process for producing potassium carbonate
US6299913B1 (en) * 2000-07-25 2001-10-09 Church & Dwight Co., Inc. Macromineral dietary factors in ruminant nutrition
US6409982B1 (en) * 2001-01-18 2002-06-25 Church & Dwight Co., Inc. Process for production of potassium carbonate sesquihydrate

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