CN110663825A - Method for preparing feed additive by using bentonite - Google Patents
Method for preparing feed additive by using bentonite Download PDFInfo
- Publication number
- CN110663825A CN110663825A CN201911122704.5A CN201911122704A CN110663825A CN 110663825 A CN110663825 A CN 110663825A CN 201911122704 A CN201911122704 A CN 201911122704A CN 110663825 A CN110663825 A CN 110663825A
- Authority
- CN
- China
- Prior art keywords
- bentonite
- heavy metal
- preparing
- feed additive
- purity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- A23K20/28—Silicates, e.g. perlites, zeolites or bentonites
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Polymers & Plastics (AREA)
- Inorganic Chemistry (AREA)
- Animal Husbandry (AREA)
- Zoology (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Fodder In General (AREA)
Abstract
The invention belongs to the technical field of feed processing, and discloses a method for preparing a feed additive by using bentonite. The method takes natural bentonite as a raw material to prepare the food-grade feed additive. The preparation method comprises the following steps: (1) soaking natural bentonite mineral powder in water for pulping, and screening large-particle impurities to obtain homogeneous pulp; (2) adding an organic phase and a heavy metal complexing agent to extract heavy metal ions into the organic phase, and carrying out liquid separation treatment to obtain high-purity bentonite slurry; (3) and adding a flocculating agent into the high-purity bentonite slurry, adjusting the pH value, filtering, and drying a filter cake to obtain the high-purity food-grade feed additive. The method for preparing the food-grade bentonite for the feed additive has the advantages of low cost, simple operation, suitability for large-scale production and good benefit.
Description
Technical Field
The invention belongs to the technical field of preparation of mineral feed additives, and particularly relates to a method for preparing a feed additive by using bentonite.
Background
25% of all edible crops worldwide are attacked by mycotoxins, which mainly include aflatoxins, zearalenone, moniliforme, porcine aflatoxins, vomitoxin, T-2 and the like. Eating food containing fungal enzyme toxins can cause vomiting, poisoning or growth metabolic diseases in humans or animals. In order to reduce the pollution of the fungal enzyme toxin to food or feed, the development of a novel food additive for inhibiting the growth of fungal fungi or reducing the content of the fungal enzyme toxin becomes a research direction with great commercial prospect. The bentonite can be used as a mold removal agent to be added into the feed, so that the content of mycotoxin in moldy food or feed can be effectively reduced, the content of minerals in animals can be increased, and the normal growth and development of the animals can be promoted. Moreover, the natural feed additive has no antibiotic and pesticide residues, has low cost and wide raw material sources, and provides technical support and development direction for the sustainable development of animal husbandry. The natural bentonite is a non-metallic mineral product which takes montmorillonite as a main mineral functional component, and the natural bentonite has a rich reserve of at least 54 hundred million tons in China. The bentonite has many excellent physicochemical properties of water absorption, hydrophilicity, adsorbability, dispersibility, plasticity, suspension property, nontoxicity and the like, and has very high commercial application value.
Natural bentonite is a nonmetallic mineral with montmorillonite mineral as main component, and its main structure is 2:1 layered structure composed of two silicon-oxygen tetrahedral layers and one aluminum octahedral layer, exchangeable cations (Na +, Ca2+, Mg2+, etc.) are arranged between the layers, and these soluble cations can be mixed with heavy metal ions (Pb, etc.)2+，Cd2+，Cu2+，Hg2+) The replacement reaction occurs, thereby leading to a certain amount of heavy metal ions contained in the natural bentonite.
Disclosure of Invention
The invention aims to prepare a food-grade bentonite feed additive by taking natural bentonite as a raw material through a pulping-phase extraction-flocculation mineralization process, and the structural characteristics of the modified bentonite are analyzed, so that the structural characteristics of the modified bentonite are obviously changed from those of the natural bentonite, and if the modified bentonite is used in the feed industry, fungal enzyme toxin can be obviously inhibited.
The technical scheme of the invention is as follows: a method for preparing feed additive by bentonite comprises the following steps:
(1) pulping: soaking natural bentonite mineral powder in water for pulping, centrifuging, filtering, standing for precipitation to remove large-particle impurities to obtain homogeneous slurry;
(2) phase extraction: adding an organic solvent and a heavy metal complexing agent into the slurry to form an oil-water two phase; heavy metal ions are extracted into an organic phase under the complexing action of a heavy metal complexing agent, and high-purity concentrate pulp without the heavy metal ions and a recyclable organic phase are obtained through liquid separation treatment;
(3) flocculation and mineralization: adding a flocculating agent into the separated high-purity concentrated ore pulp to flocculate and mineralize the concentrated ore pulp, adjusting the pH value to be 6.5-7.3, filtering after flocculation to obtain a bentonite filter cake, and drying to obtain the high-purity food-grade bentonite feed additive.
Further optimizing the design, wherein the organic solvent in the step (2) is petroleum ether and/or 2-butanol and/or ethyl acetate and/or n-hexane.
Further optimizing the design, the heavy metal complexing agent in the step (2) is oleylamine and/or sodium oleate and/or CTAB and/or sodium dodecyl benzene sulfonate.
Further optimizing the design, wherein the flocculating agent in the step (3) is sodium tartrate and/or humic acid and/or sodium humate and/or sodium citrate.
Further optimizing the design, the pH value in the step (3) is 6.7 or 7.2.
Has the advantages that: (1) the process for preparing the feed additive capable of inhibiting the fungal enzyme toxin by using the cheap and easily-obtained natural bentonite ore has simple operation, can adapt to large-scale production and generates high-efficiency economic benefit; (2) the intermediate raw materials used in the process provided by the invention can be recycled, and the influence on the environment is reduced. Chemical reagents which are toxic to organisms are not added in the preparation process, the prepared high-purity bentonite does not cause heavy metal enrichment to organisms, and can replace part of feed additives with chemical additive residues, antibiotic residues and heavy metal residues in the market; (3) the bentonite additive prepared by the invention is identified by the structural characteristics, and the parameters shown in the table 1 can be estimated, so that the content of fungal enzyme toxin in the feed can be obviously and efficiently reduced, the bentonite additive has a promoting effect on the digestive system of animals, and a safe and reliable choice is provided for animal husbandry.
Drawings
FIG. 1 is a scanning electron microscope representation of natural bentonite; figure 2 is a schematic process flow diagram for preparing food grade bentonite.
Detailed Description
Example 1, a method for preparing a feed additive using bentonite, comprising the steps of:
(1) pulping: soaking natural bentonite mineral powder in water for pulping, centrifuging, filtering, standing for precipitation to remove large-particle impurities to obtain homogeneous slurry;
(2) phase extraction: adding petroleum ether and oleylamine to the slurry to form an oil-water two phase; heavy metal ions are extracted into petroleum ether under the complexing action of oleylamine, and high-purity concentrate pulp without the heavy metal ions and petroleum ether capable of being recycled are obtained through liquid separation treatment;
(3) flocculation and mineralization: adding sodium humate into the separated high-purity concentrated ore pulp to flocculate and mineralize the concentrated ore pulp, adjusting the pH value to 7.2, filtering after flocculation to obtain a bentonite filter cake, and drying to obtain the high-purity food-grade bentonite feed additive.
Example 2, a method for preparing a feed additive using bentonite, comprising the steps of:
(1) pulping: soaking natural bentonite mineral powder in water for pulping, centrifuging, filtering, standing for precipitation to remove large-particle impurities to obtain homogeneous slurry;
(2) phase extraction: adding petroleum ether and sodium oleate into the slurry to form an oil-water two phase; heavy metal ions are extracted into petroleum ether under the complexing action of sodium oleate, and high-purity concentrate pulp without the heavy metal ions and a recyclable organic phase are obtained through liquid separation treatment;
(3) flocculation and mineralization: adding sodium tartrate into the separated high-purity concentrated ore pulp to flocculate and mineralize the concentrated ore pulp, adjusting the pH value to be 6.7, filtering after flocculation to obtain a bentonite filter cake, and drying to obtain the high-purity food-grade bentonite feed additive.
The laboratory conclusion is: the food grade bentonite feed additives prepared in the above examples 1 and 2 were subjected to laboratory analysis for their structural characteristics to obtain data of table 1, and through theoretical analysis of the data, if they are applied to the feed industry, the content of fungal enzyme toxins in the feed can be significantly reduced.
Table 1: structural characteristics of natural bentonite and food-grade bentonite
| Sample (I) | Specific surface area (m)2/g） | Average pore diameter (nm) | Pore volume (cm)3/g） |
| Natural bentonite | 15.6 | 2.61 | 0.012 |
| Food grade bentonite | 23.3 | 2.81 | 0.041 |
Claims (5)
1. A method for preparing feed additive by bentonite is characterized in that: the method comprises the following steps:
(1) pulping: soaking natural bentonite mineral powder in water for pulping, centrifuging, filtering, standing for precipitation to remove large-particle impurities to obtain homogeneous slurry;
(2) phase extraction: adding an organic solvent and a heavy metal complexing agent into the slurry to form an oil-water two phase; heavy metal ions are extracted into an organic phase under the complexing action of a heavy metal complexing agent, and high-purity concentrate pulp without the heavy metal ions and a recyclable organic phase are obtained through liquid separation treatment;
(3) flocculation and mineralization: adding a flocculating agent into the separated high-purity concentrated ore pulp to flocculate and mineralize the concentrated ore pulp, adjusting the pH value to be 6.5-7.3, filtering after flocculation to obtain a bentonite filter cake, and drying to obtain the high-purity food-grade bentonite feed additive.
2. A method of preparing a feed supplement from bentonite as claimed in claim 1, wherein: the organic solvent in the step (2) is petroleum ether and/or 2-butanol and/or ethyl acetate and/or n-hexane.
3. A method of preparing a feed supplement from bentonite as claimed in claim 1, wherein: the heavy metal complexing agent in the step (2) is oleylamine and/or sodium oleate and/or CTAB and/or sodium dodecyl benzene sulfonate.
4. A method of preparing a feed supplement from bentonite as claimed in claim 1, wherein: and (3) the flocculating agent in the step (3) is sodium tartrate and/or humic acid and/or sodium humate and/or sodium citrate.
5. A method of preparing a feed supplement from bentonite as claimed in claim 1, wherein: the pH value in the step (3) is 6.7 or 7.2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911122704.5A CN110663825A (en) | 2019-11-16 | 2019-11-16 | Method for preparing feed additive by using bentonite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911122704.5A CN110663825A (en) | 2019-11-16 | 2019-11-16 | Method for preparing feed additive by using bentonite |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110663825A true CN110663825A (en) | 2020-01-10 |
Family
ID=69088159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911122704.5A Pending CN110663825A (en) | 2019-11-16 | 2019-11-16 | Method for preparing feed additive by using bentonite |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110663825A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111908744A (en) * | 2020-06-17 | 2020-11-10 | 华南理工大学 | Method for dewatering sludge and removing heavy metals |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1803607A (en) * | 2005-12-30 | 2006-07-19 | 中国地质大学（武汉） | Method for preparing high-purity montmorillonite |
| CN1817170A (en) * | 2006-03-06 | 2006-08-16 | 周慧堂 | Minerals nutrient anti-mildew agent and preparation thereof |
| CN104001472A (en) * | 2014-06-12 | 2014-08-27 | 新疆德安环保科技有限公司 | Metal ions adsorbed by bentonite and regenerating method thereof |
| CN106578418A (en) * | 2016-12-09 | 2017-04-26 | 河北工业大学 | Mineral mildew removing agent for feeds and preparation method of mineral mildew removing agent |
| CN109250725A (en) * | 2018-08-20 | 2019-01-22 | 杭州柏科立新材料有限公司 | It is a kind of to refine montmorillonite production technology using bentonite |
-
2019
- 2019-11-16 CN CN201911122704.5A patent/CN110663825A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1803607A (en) * | 2005-12-30 | 2006-07-19 | 中国地质大学（武汉） | Method for preparing high-purity montmorillonite |
| CN1817170A (en) * | 2006-03-06 | 2006-08-16 | 周慧堂 | Minerals nutrient anti-mildew agent and preparation thereof |
| CN104001472A (en) * | 2014-06-12 | 2014-08-27 | 新疆德安环保科技有限公司 | Metal ions adsorbed by bentonite and regenerating method thereof |
| CN106578418A (en) * | 2016-12-09 | 2017-04-26 | 河北工业大学 | Mineral mildew removing agent for feeds and preparation method of mineral mildew removing agent |
| CN109250725A (en) * | 2018-08-20 | 2019-01-22 | 杭州柏科立新材料有限公司 | It is a kind of to refine montmorillonite production technology using bentonite |
Non-Patent Citations (6)
| Title |
|---|
| 巩苗苗等: "生物吸附剂及其研究进展", 《赤峰学院学报(自然科学版)》 * |
| 张广胜等: "六安膨润土资源作饲料添加剂的试验研究", 《皖西学院学报》 * |
| 田西学等: "我国天然矿物质饲料原料中重金属预警监测结果分析", 《饲料研究》 * |
| 蒋月秀等: "膨润土的纯化及脱水过程研究", 《广西科学》 * |
| 赵兵兵: "膨润土在饲料中的应用及科学检测分析", 《农民致富之友》 * |
| 陈玉成等: "表面活性剂强化重金属污染植物修复的可行性", 《生态环境》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111908744A (en) * | 2020-06-17 | 2020-11-10 | 华南理工大学 | Method for dewatering sludge and removing heavy metals |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2017254943B2 (en) | Depressants for mineral ore flotation | |
| EP2658837B1 (en) | Methods of using glycerides and fatty acid mixtures | |
| Zhou | Zn biosorption by Rhizopus arrhizus and other fungi | |
| US20220184637A1 (en) | Ore dressing process for medium-grade and low-grade mixed collophanite | |
| CN103232106B (en) | Method for neutralizing copper-sulfur mine acidic wastewater | |
| CN110092386B (en) | Method for purifying attapulgite clay | |
| CN106583051B (en) | Method for full-sludge flotation co-enrichment recovery of lithium niobium tantalum multi-metal resources | |
| CN109647351B (en) | Bagasse loaded iron hydroxide adsorbent and preparation method and application thereof | |
| US4775627A (en) | Coal desulfurization using bacteria adaptation and bacterial modification of pyrite surfaces | |
| CN110663825A (en) | Method for preparing feed additive by using bentonite | |
| de Jesus et al. | Removal of turbidity, suspended solids and ions of Fe from aqueous solution using okra powder by coagulation-flocculation process | |
| CN1372814A (en) | Process for preparing feed nano additive to adsorb fungal toxin from feed | |
| CN101731736B (en) | Solid-liquid enrichment separation method for tobacco sheet wastewater in paper-making method | |
| CN107159140B (en) | Preparation method of organic-inorganic composite attapulgite mycotoxin adsorbent | |
| CN1037285A (en) | Beneficiation method for separating copper-lead-zinc multi-metal complex ore | |
| CN102744159B (en) | A kind of method for floating improving copper sulfide ore mineral processing index | |
| CN111495315B (en) | Pb in water body2+Application and preparation method of adsorbing material | |
| Patra et al. | Microbially induced flotation and flocculation of pyrite and sphalerite | |
| CN115215350B (en) | Method for purifying attapulgite clay and attapulgite-based mineralized water agent | |
| CN1669634A (en) | Process for preparing montmorillonite loading nano titanium dioxide heavy metal adsorbent | |
| CN114181705A (en) | Soil conditioner prepared from magnetized iron ore tailings and preparation method thereof | |
| CN112655870A (en) | Method for removing mycotoxin from grains | |
| EP3854221A1 (en) | Method of providing phosphate from a phytate-containing biomass, phytate and phosphate reduced biomass, and uses thereof | |
| CN114180586B (en) | Process for producing white carbon black based on liquid phase method of silicon ore of silicon implant | |
| US1662633A (en) | Concentration of barite |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200110 |