Bentonite surface modification and intercalation technique

A mycotoxin adsorption and surface modification technology, applied in chemical instruments and methods, other chemical processes, etc., can solve the problem of not being able to simultaneously adsorb multiple mycotoxins in the feed, and possibly adsorbing nutrients or health care drugs in the feed. , to achieve the effect of no toxic and side effects, wide range of uses and good dispersibility

Active Publication Date: 2012-09-26
江苏奥迈生物科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To sum up, although natural bentonite has a certain adsorption effect on aflatoxins in feed, there are also some disadvantages, such as not being able to simultaneously adsorb various mycotoxins in feed, and possibly adsorbing nutrients in feed or health care. Drugs, etc. Therefore, to improve its application effect in feed, especially to improve its adsorption capacity for other toxins other than aflatoxin, it is also necessary to carry out targeted modification on natural bentonite minerals

Method used

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  • Bentonite surface modification and intercalation technique
  • Bentonite surface modification and intercalation technique

Examples

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Effect test

Embodiment 1

[0032] Technology 1: Production of surface-modified bentonite, based on sodium-based bentonite, first put 0.1kg of cetylpyridinium chloride with a purity of 96% into the reactor, add 100L of deionized water to the reactor, and then react The kettle is heated, and the temperature is set to 60°C, the pressure in the reactor is set to normal pressure, and the reactor is stirred, the stirring time is 8 minutes, the stirring speed is 300rpm, and 10kg of sodium bentonite powder is added during the stirring process , During the stirring period, the high-speed shearing machine matched with the reactor is used for shearing every 3 minutes, the shearing speed is 2500rpm, and the shearing time is 1 minute. After shearing, it is emulsified, placed in a precipitator, and finally dried And crushing, the total time-consuming of the whole surface modification technology is about 55 minutes.

[0033] Technology 2: Production of intercalation bentonite, based on sodium bentonite, put 0.2kg of β...

Embodiment 2

[0036] Technology 1: Production of surface-modified bentonite, based on calcium-based bentonite, 1kg of cetylpyridinium chloride with a purity of 99%, 80L of deionized water, temperature of 180°C, pressure of 1MPa, stirring time of 15 minutes, stirring speed Be 800rmp, shear velocity and time are respectively 3500rpm and 1min, and other conditions and reaction process are identical with embodiment 1;

[0037] Technology 2: Production of intercalated bentonite, based on calcium-based bentonite, 1kg of β-glucan of 300,000 Daltons, 80L of deionized water, temperature of 60°C, pressure of 1MPa, stirring time of 15 minutes, stirring speed of 700rmp, shear velocity and time are respectively 3500rpm and 1min, and other conditions and operating process are exactly the same as in embodiment 1;

[0038] The results of techniques 1 and 2 were mixed and tested for aflatoxin B 1 It was found that the adsorption efficiency had significantly increased from 83.84% before modified intercalati...

Embodiment 3

[0040]Technology 1: Production of surface modified bentonite, based on sodium bentonite, 0.8kg of cetylpyridinium chloride with a purity of 98%, 100L of deionized water, temperature of 100°C, pressure of normal pressure, stirring time of 10 minutes, Stirring velocity is 600rmp, and shear rate and time are respectively 3000rpm and 1min, and other conditions and process are exactly the same as in Example 1;

[0041] Technology 2: Production of intercalated bentonite, based on nano-bentonite, 0.8kg of β-glucan of 280,000 Daltons, 100L of deionized water, temperature of 120°C, normal pressure, stirring time of 12 minutes, stirring speed Be 600rmp, shear velocity and time are respectively 3000rpm and 1min, and other conditions and operating process are identical with embodiment 1;

[0042] The results of techniques 1 and 2 were mixed and tested for aflatoxin B 1 The adsorption effect, found that the adsorption efficiency has significantly increased from 83.84% before modified inte...

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Abstract

The invention relates to a bentonite surface modification and intercalation technique. In the technique, natural bentonite serving as a base is subjected to surface modification and intercalation, wherein the ion exchange capacity of the natural bentonite is 50 to 150 mmol / 100g; and the bentonite is sodium-based bentonite, calcium-based bentonite or sodium-calcium-based bentonite. The bentonite subjected to the surface modification and the intercalation has the advantages of high adsorption property, high oleophylic and hydrophobic property, capacity of effectively adsorbing harmful substances such as all kinds of mycotoxin and the like in feed, wide application and suitability for the fields of feed production or environmental protection, coating, papermaking, lubricants and the like.

Description

technical field [0001] The invention relates to a surface modification and intercalation method, in particular to a bentonite surface modification and intercalation method used for feed mycotoxin adsorption. Background technique [0002] Non-metallic mineral products are widely used in agriculture, light industry, metallurgy, chemical industry, building materials, machinery, national defense, environmental protection and other industrial sectors because of their unique and excellent properties such as lubricity, adsorption, expansion and other physical properties. In the feed industry, some non-metallic minerals are usually used at home and abroad to absorb harmful substances in feed or some toxic substances or pathogenic bacteria in animal intestines. These natural non-metallic minerals include bentonite, zeolite, kaolin, illite, Bentonite, chlorite, etc. As a kind of clay mineral, bentonite has a large internal and external area, strong adsorption capacity and cation excha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/12B01J20/30
Inventor 刘强孙育荣苏永腾
Owner 江苏奥迈生物科技有限公司
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