WO2022199678A1 - 一种新型丁酸钠颗粒及其制备方法 - Google Patents
一种新型丁酸钠颗粒及其制备方法 Download PDFInfo
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- WO2022199678A1 WO2022199678A1 PCT/CN2022/082916 CN2022082916W WO2022199678A1 WO 2022199678 A1 WO2022199678 A1 WO 2022199678A1 CN 2022082916 W CN2022082916 W CN 2022082916W WO 2022199678 A1 WO2022199678 A1 WO 2022199678A1
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- Prior art keywords
- butyrate
- preparation
- additive
- sodium butyrate
- hot air
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- 239000002245 particle Substances 0.000 title claims abstract description 96
- MFBOGIVSZKQAPD-UHFFFAOYSA-M sodium butyrate Chemical compound [Na+].CCCC([O-])=O MFBOGIVSZKQAPD-UHFFFAOYSA-M 0.000 title claims abstract description 76
- 238000002360 preparation method Methods 0.000 title claims abstract description 23
- 230000002776 aggregation Effects 0.000 claims abstract description 8
- 238000005054 agglomeration Methods 0.000 claims abstract description 7
- FERIUCNNQQJTOY-UHFFFAOYSA-N Butyric acid Natural products CCCC(O)=O FERIUCNNQQJTOY-UHFFFAOYSA-N 0.000 claims description 50
- FERIUCNNQQJTOY-UHFFFAOYSA-M Butyrate Chemical compound CCCC([O-])=O FERIUCNNQQJTOY-UHFFFAOYSA-M 0.000 claims description 47
- 239000007788 liquid Substances 0.000 claims description 24
- 239000000654 additive Substances 0.000 claims description 22
- 230000000996 additive effect Effects 0.000 claims description 21
- 239000013078 crystal Substances 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 13
- 239000008187 granular material Substances 0.000 claims description 12
- 238000007602 hot air drying Methods 0.000 claims description 10
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 8
- 239000003674 animal food additive Substances 0.000 claims description 6
- 240000007594 Oryza sativa Species 0.000 claims description 5
- 235000007164 Oryza sativa Nutrition 0.000 claims description 5
- 230000018044 dehydration Effects 0.000 claims description 5
- 238000006297 dehydration reaction Methods 0.000 claims description 5
- 235000009566 rice Nutrition 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 4
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 4
- 238000005243 fluidization Methods 0.000 claims description 4
- 239000002904 solvent Substances 0.000 claims description 4
- JXPHLUCMHXXHEJ-UHFFFAOYSA-N 2-(aminomethyl)-4-bromoaniline Chemical compound NCC1=CC(Br)=CC=C1N JXPHLUCMHXXHEJ-UHFFFAOYSA-N 0.000 claims description 3
- 235000014590 basal diet Nutrition 0.000 claims description 3
- FYPVXEILSNEKOO-UHFFFAOYSA-L calcium;butanoate Chemical compound [Ca+2].CCCC([O-])=O.CCCC([O-])=O FYPVXEILSNEKOO-UHFFFAOYSA-L 0.000 claims description 3
- 238000002425 crystallisation Methods 0.000 claims description 3
- RWMKSKOZLCXHOK-UHFFFAOYSA-M potassium;butanoate Chemical compound [K+].CCCC([O-])=O RWMKSKOZLCXHOK-UHFFFAOYSA-M 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 235000019764 Soybean Meal Nutrition 0.000 claims description 2
- 240000008042 Zea mays Species 0.000 claims description 2
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 claims description 2
- 235000002017 Zea mays subsp mays Nutrition 0.000 claims description 2
- 235000005822 corn Nutrition 0.000 claims description 2
- 230000008025 crystallization Effects 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 239000004455 soybean meal Substances 0.000 claims description 2
- 238000003860 storage Methods 0.000 abstract description 2
- 238000004220 aggregation Methods 0.000 abstract 1
- 238000005469 granulation Methods 0.000 description 12
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- 238000000034 method Methods 0.000 description 11
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- 235000002732 Allium cepa var. cepa Nutrition 0.000 description 4
- 238000004062 sedimentation Methods 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 235000009754 Vitis X bourquina Nutrition 0.000 description 3
- 235000012333 Vitis X labruscana Nutrition 0.000 description 3
- 240000006365 Vitis vinifera Species 0.000 description 3
- 235000014787 Vitis vinifera Nutrition 0.000 description 3
- 239000012527 feed solution Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
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- 239000004594 Masterbatch (MB) Substances 0.000 description 2
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- 238000001000 micrograph Methods 0.000 description 2
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- 229920000742 Cotton Polymers 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 239000002535 acidifier Substances 0.000 description 1
- 239000003242 anti bacterial agent Substances 0.000 description 1
- 229940088710 antibiotic agent Drugs 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000005667 attractant Substances 0.000 description 1
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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
- A23K20/10—Organic substances
- A23K20/158—Fatty acids; Fats; Products containing oils or fats
-
- 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
- A23K20/10—Organic substances
- A23K20/105—Aliphatic or alicyclic compounds
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K40/00—Shaping or working-up of animal feeding-stuffs
- A23K40/10—Shaping or working-up of animal feeding-stuffs by agglomeration; by granulation, e.g. making powders
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K40/00—Shaping or working-up of animal feeding-stuffs
- A23K40/30—Shaping or working-up of animal feeding-stuffs by encapsulating; by coating
Definitions
- the disclosure belongs to the field of additives, and in particular relates to a novel sodium butyrate particle and a preparation method thereof.
- sodium butyrate is mainly composed of butyrate ion, which has multiple functions such as strong food attractant, gastrointestinal physiological regulator, acidifier and electrolyte balance regulator, which can improve The role of immunity and production performance can also replace some antibiotics.
- sodium butyrate takes the synthesis of n-butyric acid and sodium hydroxide as the main route.
- Early sodium butyrate chemical products before 2004 After acid-base reaction, the reaction liquid is directly dried or concentrated, crystallized, centrifuged, filter-pressed, dehydrated and wet cake crushed by various drying methods, and then dried Or filter cake is crushed and pulverized to obtain products.
- Sodium butyrate powder maintains the inherent shape of needle-like crystals of different sizes, which is easy to intertwine and entangle, and is easy to absorb moisture and agglomerate, and the fluidity is extremely poor. Products with poor fluidity and easy agglomeration will inevitably cause uneven mixing and slow dissolution during use.
- the product is in the form of fluff needles or cotton wool on the surface ( Figure 1), and it is easy to recrystallize and grow into fluffy agglomerates after long-term storage.
- FIG. 3 Another kind of preparation process of sodium butyrate is conventional granulation ( Figure 3).
- Figure 3 Such as: 1. Wet granulation, add 98% sodium butyrate original powder with water or an appropriate amount of binder, stirring method, rocking granulation, rotating method, various forms of extrusion granulation, mixed granulation, granulation, throwing Pills, etc. are all available for granulation, pelletizing, etc., and then formed by many drying and drying methods. 2. Dry granulation, because it is difficult to achieve practically applicable particle size and fluidity due to tableting and granulation, and it is easy to disintegrate and disintegrate under pressure and force. Conventional granular sodium butyrate appears to be granular in various forms, and the particle shapes include irregular particles, bar-shaped particles extruded horizontally and vertically, or granular after granulation and shot blasting.
- the present disclosure provides a method for preparing a butyrate additive, comprising the following steps: providing a crystal nucleus and a butyrate feed liquid to a fluidized bed; and using a circulating fluidized crystallization method to form butyrate particles.
- nucleus refers to the embryo of a new phase that can be stably formed initially from the parent phase during crystallization. is the core of new crystal growth.
- the nuclei can be formed spontaneously or provided externally.
- the nuclei and the butyrate are of the same or different species; in some embodiments, the nuclei can be non-butyrate nuclei; in some embodiments, The crystal nucleus is a butyrate crystal nucleus; in some embodiments, the butyrate is selected from at least any one of sodium butyrate, potassium butyrate, calcium butyrate or magnesium butyrate; In some embodiments, the fluidization is performed in a continuous fluidized bed.
- the preparation method comprises the steps of:
- step S4 Dry the granules prepared in step S3.
- the total inlet air pressure is 1000-2000pa, and the total inlet air temperature is 100-200°C.
- the total inlet air pressure may be, for example, 1100pa, 1200pa, 1300pa, 1400pa, 1450pa, 1460pa, 1470pa, 1480pa, 1490pa, 1491pa, 1492pa, 1493pa, 1494pa, 1495pa, 1496pa, 1497pa, 1498pa, 1499pa ⁇ 1500pa ⁇ 1510pa ⁇ 1520pa ⁇ 1530pa ⁇ 1531pa ⁇ 1532pa ⁇ 1533pa ⁇ 1534pa ⁇ 1535pa ⁇ 1536pa ⁇ 1537pa ⁇ 1538pa ⁇ 1539pa ⁇ 1540pa ⁇ 1550pa ⁇ 1560pa ⁇ 1570pa ⁇ 1580pa ⁇ 1590pa ⁇ 1600pa ⁇ 1650pa ⁇ 1651pa ⁇ 1652pa ⁇ 1653pa ⁇ 1654pa, 1655pa, 1656pa, 1657pa, 1658pa, 1659p
- the total inlet air temperature can be, for example, 100°C, 110°C, 120°C, 130°C, 131°C, 132°C, 133°C, 134°C, 135°C, 136°C, 137°C, 138°C, 139°C, 140°C, 141°C, 142°C, 143°C, 144°C, 145°C, 146°C, 147°C, 148°C, 149°C, 150°C, 160°C, 161°C, 162°C, 163°C, 164°C , 165°C, 166°C, 167°C, 168°C, 169°C, 170°C, 180°C, 181°C, 182°C, 183°C, 184°C, 185°C, 186°C, 187°C, 188°C, 189°C, 190 °C or 200 °C, or a range consisting of any two values
- the hot air is graded hot air.
- the hot air is sequentially blown in longitudinally from the bottom, and the inlet air temperature is 100-280°C; preferably 120-230°C; more preferably 140-200°C.
- the inlet air temperature can be, for example, 110°C, 120°C, 130°C, 140°C, 150°C, 160°C, 170°C, 180°C, 190°C, 200°C, 210°C, 220°C, 230°C, 240°C , 250°C, 260°C, or 270°C; or can be, for example, 185°C, 195°C, 205°C, or 215°C; or a range of any two of the above values.
- the material layer wind pressure difference is 1000-3000pa, and the material layer temperature is 40-180°C; in some embodiments, the material layer wind pressure difference is 1500-2500pa, and the material layer temperature is 40-150°C.
- the wind pressure difference of the material layer can be, for example, 1600pa, 1700pa, 1800pa, 1900pa, 2100pa, 2200pa, 2300pa or 2400pa; Or it can be, for example, 2041pa, 2042pa, 2043pa, 2044pa, 2045pa, 2046pa, 2047pa, 2048pa or 2049pa; or a range composed of any two values above.
- the graded hot air is 140-180°C for stage 1, 120-160°C for stage 2, and 100-140°C for stage 3.
- the graded hot air stage 1 may be, for example, 150°C, 160°C, 161°C, 162°C, 163°C, 164°C, 165°C, 166°C, 167°C, 168°C, 169°C or 170°C, or any of the above A range consisting of two values;
- the graded hot air level 2 may be, for example, 130°C, 140°C, 141°C, 142°C, 143°C, 144°C, 145°C, 146°C, 147°C, 148°C, 149°C or 150°C, or a range composed of any two values above;
- the third stage of the classified hot air can be, for example, 110°C, 120°C, 121°C, 122°C, 123°C, 124°C, 125°C, 126°C,
- the butyrate feed liquid is sprayed in stages.
- the concentration of the butyrate feed is 5-80%.
- the butyrate concentration of the butyrate feed solution can be, for example, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, 50%, 55%, 60%, 65% , 70%, or 75%; or can be 46%, 47%, 48%, 49%, 50%, 51%, 52%, 53%, 54%, 55%, 56%, 57%, 58%, or 59% %; or can be 49.1%, 49.2%, 49.3%, 49.4%, 49.5%, 49.6%, 49.7%, 49.8%, 49.9%, 50%, 50.1%, 50.2%, 50.3%, 50.4%, 50.5%, 50.6%, 50.7%, 50.8% or 50.9%, or a range of any two values above.
- the vehicle for the butyrate feed is selected from soluble vehicles.
- the solvent of the butyrate feed solution is selected from at least one of water, ethanol, and isopropanol.
- the total injection rate of the butyrate feed is 100kg-10T per hour.
- the injection volume can be, for example, 200kg, 300kg, 400kg, 500kg, 600kg, 700kg, 800kg, 900kg, 1000kg, 2000kg, 3000kg, 4000kg, 5000kg, 6000kg, 7000kg, 8000kg, or 9000kg per hour, or any two values above. range of composition.
- the first-stage injection volume of the graded butyrate feed solution is 280-400kg/hour
- the second-stage injection volume is 280-380kg/hour
- the third-stage injection volume is 250-370kg/hour.
- the dehydration method is hot air drying; in some embodiments, the hot air drying is graded hot air drying; 2nd grade 120-160°C, 3rd grade 100-140°C.
- the graded hot air stage 1 may be, for example, 150°C, 160°C, 161°C, 162°C, 163°C, 164°C, 165°C, 166°C, 167°C, 168°C, 169°C or 170°C, or any of the above A range consisting of two values;
- the graded hot air level 2 may be, for example, 130°C, 140°C, 141°C, 142°C, 143°C, 144°C, 145°C, 146°C, 147°C, 148°C, 149°C or 150°C, or a range composed of any two values above;
- the third stage of the classified hot air can be, for example, 110°C, 120°C, 121°C, 122°C, 123°
- the fluidized bed in the step S4, is dried to a liquid content of 0.1%-6%, for example, it can be dried to a liquid content of 0.5%, 1%, 1.5%, 1.6%, 1.7%, 1.8 %, 1.9%, 2%, 2.1%, 2.2%, 2.3%, 2.4%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5% or 5.5%, or a range of any two of the above , out of the fluidized bed.
- drying to a liquid content of 0.5%-3% exits the fluidized bed; in some embodiments, drying to a liquid content of 1%-2.5% exits the fluidized bed; in some embodiments, drying to When the liquid content is 2%, it flows out of the fluidized bed.
- the preparation method further includes step S5. Screening the particles prepared in step S4 according to particle size.
- the particle size of step S5 is steplessly adjusted. In some embodiments, the particle size of the step S5 can be set to any particle size according to manufacturing needs. In some embodiments, the infinitely adjustable particle size can be adjusted continuously and/or at intervals with arbitrary precision.
- the particle size of the step S5 is 10-120 mesh.
- the particle size of the step S5 is 10-80 mesh.
- the particle size of the step S5 can be, for example, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115 or 120 mesh, or the range of any two values above.
- the steps S1-S5 are performed cyclically.
- the present disclosure provides a butyrate additive, which is prepared by the preparation method.
- the present disclosure provides a butyrate-based additive, wherein the butyrate-based additive is granular and has a structure formed by agglomeration of more than one spheroids with needle-like crystals between the more than one spheroids interweaving structure.
- the particle size of the butyrate additive is 10-120 mesh. In some embodiments, the particle size of the butyrate additive is 10-80 mesh. In some embodiments, the particle size of the butyrate additive may be, for example, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26 , 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95 , 100, 105, 110, 115 or 120 mesh, or the range of any two values above.
- the spheroids have a particle size of 0.05-1.0 mm.
- the particle size of the spheroid may be 0.1mm, 0.15mm, 0.2mm, 0.25mm, 0.3mm, 0.35mm, 0.4mm, 0.45mm, 0.5mm, 0.55mm, 0.6mm, 0.65mm, 0.7mm, 0.75mm, 0.8mm, 0.85mm, 0.9mm or 0.95mm, or a range of any two values above.
- a value can be ⁇ 0.1% of the value (or range of values), ⁇ 1% of the value (or range of values), ⁇ 2% of the value (or range of values), the value (or range of values) range), ⁇ 10% of the value (or range of values), ⁇ 15% of the value (or range of values), ⁇ 20% of the value (or range of values), etc. Any numerical range recited in this disclosure is intended to include all subranges or intervening values subsumed therein.
- two or more numerical ranges for a disclosed parameter encompass all possibilities of the numerical ranges that might be claimed using the endpoints of the disclosed ranges combination.
- parameter X is exemplified in this disclosure as having a value in the range of 1-10, it also describes sub-ranges of parameter X, including by way of example only: 1-9, 1-8, 1-7 , 2-9, 2-8, 2-7, 3-9, 3-8, 3-7, 2-8, 3-7, 4-6 or 7-10, 8-10 or 9-10.
- a range includes its endpoints and values within the endpoints, eg, the range 0-5 includes 0, >0, 1, 2, 3, 4, ⁇ 5, and 5.
- the additive is for addition to a mixture (eg, feed) as part of the mixture; in some embodiments, the additive is a feed additive.
- the present disclosure provides a feed comprising the butyrate additive; in some embodiments, the feed further comprises a basal diet; in some embodiments, the basal diet comprises rice bran , at least one of corn, soybean meal and bran.
- the sodium butyrate granules prepared by the specific preparation method of the present disclosure overcome the problem that the existing sodium butyrate is not easily mixed evenly in the solid feed, and at the same time, even after transportation, the sodium butyrate particles of the present disclosure Sodium butyrate granules are also not easy to settle in the feed. It is speculated that the special structure and surface morphology of the sodium butyrate granules prepared in the present disclosure are related to the "hook and bite" effect of the particle surface structure and other raw materials in the feed, even after transportation. Bumps are also less prone to subsidence. Effectively improve the utilization rate of feed additives.
- the sodium butyrate particles prepared in the present disclosure have a self-contained structure that is similar to onion skin and extremely denser than the onion skin layer without peeling off the layer in the process of particle growth; A structure similar to a grape bunch formed by bonding, wherein the grain size of the agglomerated small and medium particles (spheroids) of the grape-like bunch is 0.05-1.0 mm. It is different from conventional granulation, which is simple and multi-step process of bonding or extruding the original 98% sodium butyrate powder into agglomerates, forming granules and then drying them.
- the novel granules of the present disclosure are spherical granules, have excellent fluidity, are easy to mix and use, dissolve quickly, and have light odor.
- the particle size range can be adjusted steplessly, one-time granulation and continuous production, and the amount is large and controllable.
- Fig. 1 is the micrograph of early sodium butyrate chemical product
- Fig. 2 is the photomicrograph of the sodium butyrate that is spray-dried into powder
- Fig. 3 is the photomicrograph of the sodium butyrate prepared by conventional granulation
- Example 4 is a photo of the sodium butyrate particles prepared in Example 1 under a 4x microscope;
- Example 5 is a photo of the sodium butyrate particles prepared in Example 1 under a 10-fold microscope
- Figure 6 is a photo of the sodium butyrate particles prepared in Example 1.
- Figure 7 is a photograph of commercially available bar-shaped sodium butyrate particles
- Figure 8 is a photograph of commercially available smooth spherical sodium butyrate particles
- Fig. 9 is the photo of 3 kinds of different particles under the electron microscope of 30 times and 50 times among the embodiment 2;
- the lower row is the electron microscope photograph taken after manually cutting the particle with a stainless steel blade;
- Figure 10 is the cross-sectional photos of 3 different particles under 50 times, 100 times, and 200 times electron microscopes in Example 2;
- Fig. 11 is the photograph under the electron microscope of 400 times and 500 times of 3 kinds of different particles in embodiment 2;
- Fig. 12 is the photo of 3 kinds of different particles in embodiment 2 under 1000 times electron microscope;
- Fig. 13 is the photograph of 3 kinds of different particles in embodiment 2 under the electron microscope of 2000 times;
- Fig. 14 is the photograph of 3 kinds of different particles in embodiment 2 under the electron microscope of 3000 times;
- Figure 15 is a comparison of the mixing uniformity test results of different particles of sodium butyrate.
- compositions eg, media
- methods include the recited elements, but do not exclude other elements.
- Consisting essentially of is meant to exclude other elements of any significance to the combination for the stated purpose.
- a composition consisting essentially of the elements defined in this disclosure does not exclude other materials or steps that would not materially affect the basic and novel characteristics of the claimed disclosure.
- Consisting of means excluding other constituent trace elements and substantial method steps. Embodiments defined by each of these transition terms are within the scope of this disclosure.
- the term “and/or” is meant to include any and all possible combinations of one or more of the associated listed items. When used in a list of two or more items, the term “and/or” means that any one of the listed items can be used alone or any combination of two or more of the listed items can be used . For example, if a composition, combination, construction, etc.
- composition may comprise A alone; B alone; C alone; D alone ; Combinations containing A and B; Combinations containing A and C; Combinations containing A and D; Combinations containing B and C; Combinations containing B and D; Combinations containing C and D; Combinations containing A, B and C Combination; A, B, and D combination; A, C, and D combination; B, C, and D combination; or A, B, C, and D combination used.
- Embodiment 1 A kind of preparation method of novel sodium butyrate granules
- the preparation method of novel sodium butyrate granules comprises the following steps:
- Multi-channel classification hot air parameters the first stage is 162 °C, the second stage is 143 °C, and the third stage is 126 °C; the air pressure difference of the material layer is 2041pa, and the material layer temperature is 61 °C; the masterbatch is in fluidized boiling or fluidization in the bed. rollover state.
- step S1 the coarse particles are selectively moved toward the discharge end of the fluidized bed in fluidization, while the fine particles, powder particles and fine powder are moved toward the front end of the fluidized bed, especially the fine powder is selectively at the top of the fluidized bed.
- Sodium butyrate feed liquid is sprayed into the front end of the fluidized bed in stages.
- concentration of the sodium butyrate aqueous solution is 50.2%.
- the parameters of classification and spraying are: 352kg/hour for the first level, 335kg/hour for the second level, and 319kg/hour for the third level. Hour.
- step S2 the fine powder and small particles at the front end receive the feed liquid, which is not only sticky to each other but also receives the liquid independently, and the gradually growing particles gradually fluidize and sink from the front end to the rear end.
- Hot air drying and dehydration, parameters of hot air drying and dehydration (same as S1): total inlet air pressure 1532pa, temperature 164°C, time 1.2 hours.
- step S5 The particles prepared in step S4 are sieved. Since the particles are steplessly regulated, particles of 18-40 mesh (ie, particle size of 0.425-1.0 mm) are selected for packaging in this embodiment; the coarse particles with excessive particle size are crushed After that, the fine powder with too small particle size is returned to the fluidized bed, and the granulation process of steps S1-S4 is cycled.
- particles of 18-40 mesh ie, particle size of 0.425-1.0 mm
- the particles are formed on the basis of sodium butyrate powder or existing sodium butyrate particles
- step S2 continues to spray the sodium butyrate feed liquid and smears
- step S4 continues to dry and gradually grow up, as required Screening equipment with different apertures can be set in step S5, so that the final product can be steplessly controlled in the particle size range of 10-80 mesh (0.180-2.00 mm).
- the coating process it has a self-contained structure that is similar to onion skin and extremely denser than onion skin without peeling off the layer; it also has a structure similar to grape bunches formed by agglomeration, agglomeration and bonding of small and medium particles.
- Particle 2 and Particle 3 correspond to Particle 1 by changing parameters such as hot air temperature, corresponding air pressure, and material solution solubility to make sodium butyrate particles. Table 1 below.
- Each sample was freeze-dried at minus 50 °C before scanning electron microscopy to meet the operating conditions of the scanning electron microscope.
- Figure 9-14 shows the comparison pictures of three different particles of the sample to be tested under different electron microscope magnifications.
- the sodium butyrate particles of Example 1 have a spherical shape in the shape of grape clusters.
- the cross section of the sodium butyrate of Example 1 had layered peeling, and the surface showed a bumpy ball-like agglomeration.
- the sodium butyrate of Example 1 and its spheroids present needle-like crystals and are intertwined and connected. It is significantly different from the commercially available bar-shaped sodium butyrate and smooth spherical sodium butyrate in terms of surface morphology, cross-section, and crystal interweaving state.
- Test method 40g each of 3 kinds of granular sodium butyrate was mixed with 20kg of rice bran in a mixer for 20 minutes, and each sample was repeated 3 times.
- the sedimentation of granular sodium butyrate in the feed was tested before and after transportation. The tests are performed simultaneously on the same batch.
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Abstract
Description
Claims (14)
- 一种丁酸盐类添加剂的制备方法,其特征在于包含以下步骤:向流化床提供晶核和丁酸盐料液;采用循环流化结晶方式,形成丁酸盐颗粒。
- 如权利要求1所述的制备方法,其特征在于,所述晶核和所述丁酸盐为同种或不同种物质;优选地,所述的晶核为丁酸盐类的晶核;优选地,所述丁酸盐类选自丁酸钠、丁酸钾、丁酸钙或丁酸镁中的至少任意一种;优选地,所述流化在连续流化床中进行。
- 如权利要求1或2所述的制备方法,其特征在于,包括以下步骤:S1.提供晶核后向流化床内吹入热风;S2.喷入丁酸盐料液,颗粒长大;S3.持续对步骤S2制备的颗粒干燥;S4.将步骤S3制备的颗粒干燥。
- 如权利要求3所述的制备方法,其特征在于,所述步骤S1中,总进风风压为1000-2000pa,温度100-200℃;优选地,所述热风为分级的热风;优选地,所述热风从底部纵向依次吹入,进风温度100-280℃;优选为120-230℃;更优选140-200℃;优选地,料层风压差1000-3000pa,料层温度40-180℃;优选为料层风压差1500-2500pa,料层温度40-150℃;优选地,所述分级热风第1级140-180℃,第2级120-160℃,第3级100-140℃。
- 如权利要求3或4所述的制备方法,其特征在于,所述步骤S2中,分级喷入丁酸盐料液;优选地,所述丁酸盐料液的丁酸盐浓度为5-80%;优选地,所述丁酸盐料液的溶媒选自可溶的溶媒;优选地,所述丁酸盐料液的溶媒选自水、乙醇、异丙醇中的至少一种;优选地,所述丁酸盐料液的总喷入量为每小时100kg-10T;优选地,所述分级喷入丁酸盐料液的第1级喷入量为280-400kg/小时,第2级喷入量为280-380kg/小时,第3级喷入量为250-370kg/小时。
- 如权利要求3-5任一所述的制备方法,其特征在于,所述步骤S3中,脱水方式为热风干燥;优选地,所述热风干燥为分级热风干燥;优选地,分级热风干燥第1级140-180℃,第2级120-160℃,第3级100-140℃。
- 如权利要求3-6任一所述的制备方法,其特征在于,所述步骤S4中,干燥至液体含量0.1%-6%时流出流化床;优选地,干燥至液体含量0.5%-3%时流出流化床;优选地,干燥至液体含量1%-2.5%时流出流化床;优选地,干燥至液体含量2%时流出流化床。
- 如权利要求3-7任一所述的制备方法,其特征在于,所述制备方法还包括步骤S5.将步骤S4制备的颗粒按粒径分筛;优选地,所述步骤S5的粒径是无级调节的;优选地,所述步骤S5的粒径为10-120目;优选地,所述步骤S5的粒径为10-80目;优选地,所述步骤S1-S5是循环进行的。
- 一种丁酸盐类添加剂,其特征在于,是由权利要求1-8任一所述的制备方法制备的。
- 一种丁酸盐类添加剂,其特征在于,所述丁酸盐类添加剂呈颗粒状,具有由不止一个类球体附聚形成的结构,所述不止一个类球体之间具有针状晶体交织结构。
- 如权利要求10所述的丁酸盐类添加剂,其特征在于,所述丁酸盐类添加剂的粒径为10-120目;优选地,所述丁酸盐类添加剂的粒径为10-80目;优选地,所述类球体的粒径为0.05-1.0mm。
- 如权利要求1-8任一所述的制备方法,或权利要求9-10任一所述的丁酸盐类添加剂,其特征在于,所述添加剂为饲料添加剂。
- 一种饲料,其特征在于,包含如权利要求10-11任一所述的丁酸盐类添加剂;优选地,所述的饲料还包括基础日粮;优选地,所述基础日粮包含米糠、玉米、豆粕、麸皮中的至少一种。
- 如权利要求10-11任一所述的丁酸盐类添加剂,或权利要求13所述的饲料,其特征在于,所述丁酸盐类选自丁酸钠、丁酸钾、丁酸钙或丁酸镁中的至少任意一种。
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