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Preparation method of modified montmorillonite powder for feeds

A technology of montmorillonite powder and montmorillonite, which is applied in the field of montmorillonite modified powder preparation, can solve the problems of dehydration and separation of modified products, low ratio of quaternary ammonium compound montmorillonite, and high drying energy consumption, and achieves Reasonable selection of material properties, good practical application value, and low drying energy consumption

Inactive Publication Date: 2015-07-29
内蒙古润隆膨润土科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The above-mentioned existing technology has the advantages of stable reaction process and stable product composition, but there are low concentration of quaternary ammonium salt solution used, difficulty in dissolving the quaternary ammonium salt solution (especially containing long carbon chains with more than 18 carbons), and montmorillonium salt solution. Low concentration of stone reaction slurry, low proportion of quaternary ammonium compound montmorillonite, dehydration and separation of modified products, high drying energy consumption, long process flow and other defects, the product processing cost is high, and the process is mainly suitable for single long chain quaternary Ammonium salt, however, the double-long carbon chain is larger than the single-carbon chain quaternary ammonium salt modified product layer spacing, which is more suitable for mildew prevention and mildew removal of weak polarity and large-volume mold
[0007] Quaternary ammonium salt modified montmorillonite products have a good effect on removing toxins such as zearalenone and other weakly polar zearalenone in feed, but there are many defects in the current process that need to be improved and optimized to prepare better performance, lower cost product

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  • Preparation method of modified montmorillonite powder for feeds
  • Preparation method of modified montmorillonite powder for feeds
  • Preparation method of modified montmorillonite powder for feeds

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Embodiment 1

[0024] A preparation method of modified montmorillonite powder for feed, which is to first prepare 100 g of calcium-based montmorillonite powder with montmorillonite content ≥ 80%, total cation exchange (CEC) of 1.0 mmol / g montmorillonite powder, and d001 value of 1.42 nm. Add the destoned powder into the electric heating oil bath high-speed mixing mixer, stir and heat to 85°C, then add 0.7mmol of solid dioctadecyldimethylammonium chloride per g of montmorillonite, and heat at 1000r / min Mix and stir at high speed for 30 minutes, and dry at 105°C to remove excess water and dispersant brought in by quaternary ammonium salts. The montmorillonite was further dispersed to obtain a 325-mesh modified montmorillonite powder with a d001 value of 4.16nm and a loss-on-ignition rate of 35.3% at 850°C as measured by the X-ray diffraction method. The X-ray diffraction pattern of the finished product is shown in the attached figure 2 , with figure 1 It is the X-ray diffraction pattern of ...

Embodiment 2

[0026] A preparation method of modified montmorillonite powder for feed, which is to first prepare 100 g of calcium-based montmorillonite powder with montmorillonite content ≥ 80%, total cation exchange (CEC) of 1.0 mmol / g montmorillonite powder, and d001 value of 1.42 nm. Add the destoned powder into the electric heating oil bath high-speed mixing mixer, stir and heat to 85°C, then add 0.7mmol of solid octadecyltrimethylammonium chloride per g of montmorillonite, and mix at a high speed of 1000r / min under heat preservation Stir and modify for 30 minutes, dry at 105°C to remove excess water and dispersant brought in by quaternary ammonium salts, the drying time is controlled according to the volatile content of the dried material at 105°C ≤ 5%, the modified montmorillonite after drying Further break up and disperse to obtain 325-mesh modified montmorillonite powder with a d001 value of 3.59nm and a loss-on-ignition rate of 24.2% at 850°C as measured by the X-ray diffraction met...

Embodiment 3

[0028] A preparation method of modified montmorillonite powder for feed, which is to first prepare 100 g of calcium-based montmorillonite powder with montmorillonite content ≥ 80%, total cation exchange (CEC) of 1.0 mmol / g montmorillonite powder, and d001 value of 1.42 nm. Add the destoned powder into the electric heating oil bath high-speed mixing mixer, stir and heat to 85°C, then add 0.7mmol of solid cetyltrimethylammonium chloride per g of montmorillonite, and mix at a high speed of 1000r / min under heat preservation Stir and modify for 30 minutes, dry at 105°C to remove excess water and dispersant brought in by quaternary ammonium salts, the drying time is controlled according to the volatile content of the dried material at 105°C ≤ 5%, the modified montmorillonite after drying Further break up and disperse to obtain 325-mesh modified montmorillonite powder with a d001 value of 3.27nm and a loss-on-ignition rate of 20.5% at 850°C as measured by the X-ray diffraction method....

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Abstract

The present invention provides a preparation method of modified montmorillonite powder for feeds. The preparation method comprises: heating crushed montmorillonite powder to a temperature of 80-90 DEG C, adding a measured quaternary ammonium salt solid, carrying out thermal insulation and high speed stirring modification, drying, and beating to obtain the large interlayer distance montmorillonite powder for feeds, wherein the d001value of the montmorillonite powder is 2.90-4.55 nm through the X-ray diffraction detection. According to the present invention, the modified montmorillonite powder prepared by using the method of the present invention has characteristics of high quaternary ammonium salt cation compounding proportion and large interlayer distance; and with the application of the modified montmorillonite powder as the feed mildew inhibitor, the good effects of adsorption, fixation and removal can be provided for weakly polar molecule mould in the feed production, storage and transportation processes, and the good application effect can be provided for prevention of feed mildewing deterioration.

Description

technical field [0001] The invention belongs to the field of preparation of modified montmorillonite powder, in particular to a preparation method of modified montmorillonite powder for feed, which is suitable for calcium-based or sodium-based montmorillonite modification. Background technique [0002] Montmorillonite powder is an important natural mildew-proof and mildew-removing additive in modern feed formulations, and its consumption is increasing year by year. The processed ordinary calcium-based or sodium-based montmorillonite powder has been widely used for the removal of strong polar aflatoxins, etc. The adsorption and removal of toxins such as mycocetone are poor. [0003] Quaternary ammonium salts are high-efficiency fungicides with long-chain alkanes that can dissociate large-volume cations. Its chemical properties are relatively stable when exposed to heat, and it can be dissolved in water but hardly soluble in non-polar solvents. Quaternary ammonium salt fungi...

Claims

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Application Information

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IPC IPC(8): A23K1/175
Inventor 孙亚光王晓杰
Owner 内蒙古润隆膨润土科技有限公司
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