Preparation method for hydroxycalcium carbonate and application of hydroxycalcium carbonate in animal feed field

A technology of calcium hydroxycarbonate and animal feed, which is applied in the molding or processing of animal feed, animal feed, calcium carbonate/strontium/barium, etc., can solve the problems of unreported application, unfavorable reaction amount, uncontrollable amount, etc. Simple, uniform product particle, process controllable effect

Active Publication Date: 2019-03-01
XINGJIA BIO ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, calcium hydroxycarbonate is mostly found in the cement industry, and its specific application in animals has not been reported.
At present, calcium oxide or calcium hydroxide reacts with carbon dioxide gas to prepare hydroxycalcium carbonate at room temperature and above. Calcium hydroxide and carbon dioxide start to generate hydroxycalcium carbonate, but hydroxycalcium carbonate will continue to react with carbon dioxide to continue to generate calcium carbonate. , it can be seen that the reaction of carbon dioxide and calcium to prepare calcium hydroxycarbonate is uncontrollable
Carbon dioxide is a gas with low density and low solubility in water. It will quickly float to the liquid surface, which is not conducive to precise control of the reaction amount of carbon dioxide. If there is too much carbon dioxide, it will easily lead to the formation of calcium carbonate.

Method used

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  • Preparation method for hydroxycalcium carbonate and application of hydroxycalcium carbonate in animal feed field
  • Preparation method for hydroxycalcium carbonate and application of hydroxycalcium carbonate in animal feed field
  • Preparation method for hydroxycalcium carbonate and application of hydroxycalcium carbonate in animal feed field

Examples

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Embodiment 1

[0052] A preparation method for calcium hydroxycarbonate, comprising the following steps:

[0053] Add 113g of calcium chloride and 114g of calcium oxide with a purity of 98% into 1.3L of water, cool down, add 171g of sodium bicarbonate with a purity of 98% under stirring and react at a constant temperature at -1°C for 1h, and react After the crystallization was completed for 1 h, after centrifugal filtration, it was dried and pulverized in an oven at 105° C. to obtain 258 g of calcium hydroxycarbonate.

[0054] The target product hydroxycalcium carbonate obtained by the present invention is detected, wherein the carbonate ion content is 43.2%, the calcium content is 43.3%, the hydroxide content is 12.2%, and the volatile substance content is 0.6% at 105° C., the detection result Calcium Hydroxycarbonate Molecular Formula Ca 3 (CO 3 ) 2 (OH) 2 match. The product yield is 93.2%, and the product purity is 98.7%.

[0055] Product infrared spectrum see figure 1 ,Depend on ...

Embodiment 2

[0057] A preparation method for calcium hydroxycarbonate, comprising the following steps:

[0058] Add 113kg of calcium chloride and 114kg of calcium oxide with a purity of 98% to 1 ton of water, cool down, add 204kg of potassium bicarbonate with a purity of 98% under stirring and react at a constant temperature at -3°C for 1.0h. After the completion of the crystallization at room temperature for 50 minutes, after centrifugal filtration and flash drying, 2% modified starch was added to granulate and pass through a 100-mesh sieve to obtain 273 kg of calcium hydroxycarbonate.

[0059] The target product hydroxycalcium carbonate obtained by the present invention is detected, wherein the carbonate ion content is 41.7%, the calcium content is 41.7%, the hydroxide content is 11.8%, and the volatile substance content is 3.6% at 105° C., the detection result Calcium Hydroxycarbonate Molecular Formula Ca 3 (CO 3 ) 2 (OH) 2 match. The product yield is 94.8%, and the product purity ...

Embodiment 3

[0061] A preparation method for calcium hydroxycarbonate, comprising the following steps:

[0062] Add 156kg of calcium hydroxide with a purity of 98% to 1 ton of water, lower the temperature, add 164kg of calcium bicarbonate with a purity of 99% under stirring and react at a constant temperature of 1°C for 1.0h, after the reaction, cool down to room temperature for crystallization After 45 minutes, it was centrifugally filtered, dried in an oven at 105°C, and crushed through 30 meshes to obtain 271kg of calcium hydroxycarbonate.

[0063] The target product hydroxycalcium carbonate obtained by the present invention is detected, wherein the carbonate ion content is 42.7%, the calcium content is 42.8%, the hydroxide content is 12.1%, and the volatile substance content is 1.3% at 105° C., the detection result Calcium Hydroxycarbonate Molecular Formula Ca 3 (CO 3 ) 2 (OH) 2 match. The product yield is 96.5%, and the product purity is 97.8%.

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Abstract

The invention discloses a preparation method for hydroxycalcium carbonate for an animal feed. The preparation method comprises the following steps: adding a calcium source to water and warming, addingbicarbonate in a stirring condition, reacting in a constant temperature, after ending a reaction, cooling and crystallizing, filtering and drying, to obtain the hydroxycalcium carbonate. The preparation method is more moderate in reaction rate, controllable in process, more uniform in obtained product particles, less in by-product generation, high in bioavailability of the hydroxycalcium carbonate, and low in processing cost. The invention further discloses an application of the hydroxycalcium carbonate in the animal feed field. While the hydroxycalcium carbonate is used for a pig feed, an additive amount thereof is 1-12 kg/t of a mixed feed; while the hydroxycalcium carbonate is used for a poultry animal feed, the additive amount thereof is 1-23 kg/t of the mixed feed; and while the hydroxycalcium carbonate is used for a ruminant animal feed, the additive amount thereof is 0.1-4 kg/t of a full mixed daily ration feed. The application is capable of neutralizing acidic materials in thefeed, and preventing or delaying metamorphism of the feed.

Description

technical field [0001] The invention belongs to the field of animal feed, and in particular relates to a preparation method of hydroxycalcium carbonate and an application of hydroxycalcium carbonate in the field of animal feed. Background technique [0002] Calcium is the most abundant mineral element in living organisms. Sufficient calcium intake is essential to maintain normal bone mineral content and bone density in animals, and to achieve high peak bone mass. In addition, calcium ions also participate in a variety of physiological functions in organisms, such as blood coagulation, maintaining the normal excitability of the heart, muscles, and nerves, signal transduction, and membrane permeability. [0003] Usually, the calcium content in natural plant feed is insufficient compared with the requirements of various animals, especially egg-laying poultry, lactating cows and growing young animals. Therefore, attention should be paid to calcium supplementation in animal diet...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01F11/18A23K20/24A23K40/10A23K50/30A23K50/75A23K50/10
CPCA23K20/24A23K40/10A23K50/10A23K50/30A23K50/75C01F11/18C01P2002/82C01P2006/80
Inventor 张亚伟黄逸强向阳葵彭红星周长虹王赏初
Owner XINGJIA BIO ENG CO LTD
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