CN110357673A - A kind of preparation method being sustained selenium-enriched organic fertilizer - Google Patents
A kind of preparation method being sustained selenium-enriched organic fertilizer Download PDFInfo
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- CN110357673A CN110357673A CN201910558683.5A CN201910558683A CN110357673A CN 110357673 A CN110357673 A CN 110357673A CN 201910558683 A CN201910558683 A CN 201910558683A CN 110357673 A CN110357673 A CN 110357673A
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- selenium
- organic fertilizer
- sustained release
- solution
- acid
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D9/00—Other inorganic fertilisers
- C05D9/02—Other inorganic fertilisers containing trace elements
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
- C05G5/40—Fertilisers incorporated into a matrix
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Fertilizers (AREA)
Abstract
The present invention relates to a kind of preparation methods for being sustained selenium-enriched organic fertilizer, the method includes by industrial selenium powder acid dissolution and adjust pH value of solution=1~6, active zeolite to Se solution adsorb, by biological starch size mixing with zeolite containing selenium be mixed drying, through crushing, ball milling powdering raw material；Then powder raw material is mixed in proportion with biological organic fertilizer and is fermented to get sustained release selenium-rich organic fertilizer product.The content that selenium in soil can be effectively improved using the resulting sustained release selenium-enriched organic fertilizer of the method for the present invention, improves soil texture and quality.In addition, sustained release selenium-enriched organic fertilizer preparation provided by the invention is simple, low in cost, practical value with higher.
Description
Technical field
The invention belongs to agricultural technology fields, are related to a kind of preparation method of fertilizer, especially a kind of sustained release selenium-rich organic
Fertilizer and preparation method thereof.
Background technique
Selenium is the indispensable microelement of human body.Selenium is divided into vegetable active selenium and two kinds of inorganic selenium, and inorganic selenium has larger
Toxicity, and be not easy to be absorbed, be not suitable for humans and animals and use.Vegetable active selenium is by bioconversion in conjunction with amino acid
At, generally in the form of selenomethionine exist, vegetable active selenium be human and animal allow using selenium source.Selenium deficiency is generation gram
The major reason of mountain disease, selenium deficiency are also considered as the major reason that Kaschin-Beck disease occurs.China is a selenium deficiency big country, Zhan Zhongguo
There are a low selenium areas in 72% area of national territorial area, wherein 30% is serious selenium deficiency area, the natural foods selenium such as grain contains
It measures lower.The big and medium-sized cities such as North China, northeast, northwest belong to selenium deficiency area.For example daily selenium intake is only per capita by Beijing residents
For 60 micrograms, and daily selenium intake only has 10 micrograms to northeast most area per capita, is heart disease, Keshan disease, Kaschin-Beck disease
District occurred frequently.
It, can be by the method for the introducing selenium in organic fertilizer, for example, Chinese patent Shen in order to improve the content of selenium in crop
Please CN200910047269.4 disclose a kind of gangue crushing using containing selenium and be mixed into organic fertilizer, to improve in organic fertilizer
The method of the content of selenium.Chinese patent application CN201610073645.7 discloses one kind and activation selenium is added in chicken manure, sheep dung
The method of miberal powder, to improve the content of selenium in organic fertilizer.
Since the content of selenium in gangue is lower, in order to improve the content of selenium in soil, need to be added a large amount of gangue.
Gangue complicated component easily causes heavy metal in soil exceeded.And the method for activation selenium powder is added since selenium dissolves in water
Fastly, cause the utilization rate of selenium low.
Therefore, searching develops the new sustained release selenium-enriched organic fertilizer preparation method of one kind and has great importance.
Summary of the invention
The purpose of the present invention is to solve the above problems, find a kind of adsorbent of new selenium, inventor is by multiple
It attempts, finally found that and selenium is adsorbed in natural minerals zeolite, be re-introduced into sustained release agent, above-mentioned purpose may be implemented, thus complete
The present invention.
This invention takes following technical solutions:
1., by selenium acid dissolution, and adjust gained Se solution；
2., by zeolite high-temperature activation, crush, ball milling powdering raw material；
3., by step, 1. 2. powder raw material mixes acquired solution with step in proportion, stir evenly, obtain mixture；
4., add water to size mixing the starch, obtain amidin；3. by resulting amidin and step
Resulting mixture is mixed, and drying crushes to obtain raw materials containing selenium
5., raw materials containing selenium and biological organic fertilizer be mixed fermentation by a certain percentage to get sustained release selenium-enriched organic fertilizer.
Beneficial effect
The selenium raw material that the present invention is recommended to use is industrial selenium powder, has (> 99%) with high purity, other thus introduced are heavy
Metal ion is few (with gangue ratio)；Used zeolite be natural minerals, main ingredient be silica and aluminum oxide,
Have many advantages, such as it is from a wealth of sources, it is cheap, after high-temperature activation, the adsorption capacity of selenium is greatly increased, the adsorbance of selenium can
Up to 25mg/g.The introducing of sustained release agent can block the duct of zeolite, as the degradation of starch is slow, keep the selenium salt in duct slow
Be discharged into organic fertilizer, to improve the absorption of Selenium By The Plants, improve the utilization rate of selenium；Using starch as sustained release agent, nontoxic nothing
Evil, it is environmentally friendly；It is sustained the low production cost of selenium-enriched organic fertilizer, is computed, produces one ton of sustained release selenium-enriched organic fertilizer (selenium
Content is 30 g tons) the more common increased cost of organic fertilizer is only 10 yuans.Therefore, with good application prospect.
Specific embodiment
The present invention is described in more detail below, but the present invention is not limited to following the description.
The present invention provides a kind of preparation methods for being sustained selenium-enriched organic fertilizer.Specifically, sustained release according to the present invention is rich
The method of selenium organic fertilizer, includes the following steps:
1., by selenium acid dissolution, and adjust gained Se solution；The selenium can selected from industrial selenium powder, high-purity selenium powder,
Selenium block etc.；The mixed acid that the acid can be mixed with acetic acid, hydrochloric acid, sulfuric acid, nitric acid or the above acid with arbitrary proportion.In stirring bar
Under part, slowly selenium is added in acid solution, the concentration for adjusting selenium in solution is 1g/L~50g/L；Preferably 25g/L；Solution
Acidity be pH=1~6；Preferably pH=2；
2., by zeolite high-temperature activation, crush, ball milling powdering raw material；By natural zeolite between 100~250 degree high temperature
Activation, then first crushes the zeolite after activation, then wears into the powder that granularity is 80~200 mesh with ball mill.Preferred activation
Temperature is 200 degree；Preferred powder particles are 100 mesh.
3., by step 1. gained Se solution and step 2. resulting powder raw material by Se solution: powder=0.1~2:
1 (weight ratio) mixing, stirs evenly, obtains selenium-rich mixture；Preferably, Se solution: powder=1:1 (weight ratio)；
4., starch is added to the water and is sized mixing, its ratio be starch: water=0.01~0.1:1 (weight ratio) obtains starch
Aqueous solution；Wherein, it is preferred that starch: water=0.05:1 (weight ratio)；Then by resulting amidin and step 3. gained
Selenium-rich mixture by amidin: selenium-rich mixture=0.5~2:1 (weight ratio) is mixed, dry, crush former containing selenium
Material；Wherein, it is preferred that amidin: selenium-rich mixture=1:1；Resulting raw materials containing selenium grinding particle size is greater than 30 mesh, preferably
, raw materials containing selenium granularity is greater than 80 mesh；
5., by raw materials containing selenium and biological organic fertilizer be mixed by a certain percentage to get sustained release selenium-enriched organic fertilizer.Described contains selenium
The ratio of raw material and biological organic fertilizer can be raw materials containing selenium: biological organic fertilizer=1:100~5000 (weight ratio)；Preferably,
Raw materials containing selenium: biological organic fertilizer=1:1000 (weight ratio).
Embodiment
For the scheme that the present invention is further explained, specific embodiments of the present invention are provided to facilitate those skilled in the art
Member understands and implements the present invention, but the present invention is not limited to these Examples.
Embodiment 1
30 grams of industrial selenium powders are taken, the acetum ([H of 1.2L is added slowly to+]=0.3mol/L) in, stirring, to selenium
After being completely dissolved, the pH=2 of Se solution at this time；[Se]=25g/L；
1.2Kg natural zeolite is taken, is activated under 200 degree 1 hour, being milled to partial size with ball mill after cooling is 100 mesh；
Active zeolite after 1.2L Se solution is ground with 1.2Kg mixes, and obtains selenium-rich mixture；
50 grams of starch are taken to mix with 1L water, stirring to pulp obtains amidin；By selenium-rich mixture and amidin
Material is milled to 80 mesh with pulverizer, obtains raw materials containing selenium by mixing after dry.
Above-mentioned resulting raw materials containing selenium and 1 ton of organic fertilizer are mixed to get to sustained release selenium-enriched organic fertilizer, are sustained selenium-rich at this time
Se content in organic fertilizer is 30 g tons.
Embodiment 2
50 grams of industrial selenium powders are taken, the sulfuric acid solution ([H of 1L is added slowly to+]=0.5mol/L) in, stirring is complete to selenium
After fully dissolved, the pH=2 of Se solution at this time；[Se]=50g/L；
2Kg natural zeolite is taken, is activated under 200 degree 1 hour, being milled to partial size with ball mill after cooling is 100 mesh；It will
Active zeolite after above-mentioned Se solution is ground with 2Kg mixes, and obtains selenium-rich mixture；
50 grams of starch are taken to mix with 2L water, stirring to pulp obtains amidin；By selenium-rich mixture and amidin
Material is milled to 80 mesh with pulverizer, obtains raw materials containing selenium by mixing after dry.
Above-mentioned resulting raw materials containing selenium and 2 tons of organic fertilizers are mixed to get to sustained release selenium-enriched organic fertilizer, are sustained selenium-rich at this time
Se content in organic fertilizer is 25 g tons.
Embodiment 3
30 grams of high-purity selenium powders are taken, the nitric acid solution ([H of 1.2L is added slowly to+]=0.3mol/L) in, stirring, to selenium
After being completely dissolved, the pH=2 of Se solution at this time；[Se]=25g/L；
1.2Kg natural zeolite is taken, is activated under 200 degree 1 hour, being milled to partial size with ball mill after cooling is 100 mesh；
Active zeolite after 1.2L Se solution is ground with 1.2Kg mixes, and obtains selenium-rich mixture；
100 grams of starch are taken to mix with 1L water, stirring to pulp obtains amidin；Selenium-rich mixture and starch is water-soluble
Material is milled to 80 mesh with pulverizer, obtains raw materials containing selenium by liquid mixing after dry.
Above-mentioned resulting raw materials containing selenium and 1 ton of organic fertilizer are mixed to get to sustained release selenium-enriched organic fertilizer, are sustained selenium-rich at this time
Se content in organic fertilizer is 30 g tons.
Claims (6)
1. a kind of preparation method for being sustained selenium-enriched organic fertilizer, which comprises the following steps:
1., by selenium acid dissolution, and adjust gained Se solution；
2., by zeolite high-temperature activation, crush, ball milling powdering raw material；
3., by step, 1. 2. powder raw material mixes acquired solution with step in proportion, stir evenly, obtain selenium-rich mixture；
4., add water to size mixing the starch, obtain amidin；By resulting amidin, 3. resulting selenium-rich is mixed with step
Object is mixed, and drying crushes to obtain raw materials containing selenium
5., by raw materials containing selenium and biological organic fertilizer be mixed by a certain percentage to get sustained release selenium-enriched organic fertilizer.
2. the preparation method of sustained release selenium-enriched organic fertilizer described in claim 1, wherein
Step 1. in, described can be the raw materials containing seleniums such as industrial selenium powder, high-purity selenium powder, selenium block；Preferably industrial selenium powder；
The acid can be the mixed acid that acetic acid, hydrochloric acid, sulfuric acid, nitric acid or the above acid are mixed with arbitrary proportion；Preferably vinegar
Acid；
The Se solution acidity is pH=1~6；Preferably pH=2；Selenium concentration is 1g/L~50g/L；Preferably 25g/L；
3. the preparation method of sustained release selenium-enriched organic fertilizer described in claim 1, wherein
Step 2. in, the high-temperature activation, activation temperature be 100~250 degree, preferably 200 degree；
Its granularity of the powder raw material is 80~200 mesh, preferably greater than 100 mesh；
4. the preparation method of sustained release selenium-enriched organic fertilizer described in claim 1, wherein
Step 3. in, 1. 2. resulting powder raw material mixes gained Se solution the step with step, wherein Se solution:
Powder raw material=0.1~2:1 (weight ratio)；Preferably, Se solution: powder raw material=1:1 (weight ratio)；
5. the preparation method of sustained release selenium-enriched organic fertilizer described in claim 1, wherein
Step 4. in, the amidin, starch: water=0.01~0.1:1 (weight ratio), it is preferred that starch: water=
0.05:1 (weight ratio)；The amidin: step 3. resulting selenium-rich mixture=0.5~2:1 (weight ratio)；It is preferred that
, amidin: selenium-rich mixture=1:1；Resulting raw materials containing selenium grinding particle size is greater than 30 mesh, and preferred size is greater than 80
Mesh；
6. the preparation method of sustained release selenium-enriched organic fertilizer described in claim 1, wherein
Step 5. in, the ratio of the raw materials containing selenium and biological organic fertilizer can be raw materials containing selenium: biological organic fertilizer=1:100
~5000 (weight ratios)；Preferably, raw materials containing selenium: biological organic fertilizer=1:1000 (weight ratio).
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| CN201910558683.5A CN110357673A (en) | 2019-06-26 | 2019-06-26 | A kind of preparation method being sustained selenium-enriched organic fertilizer |
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| CN201910558683.5A CN110357673A (en) | 2019-06-26 | 2019-06-26 | A kind of preparation method being sustained selenium-enriched organic fertilizer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111675574A (en) * | 2020-06-28 | 2020-09-18 | 北部湾海洋新材料研究院 | Slow-release selenium-rich ecological fertilizer for golden camellia and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010056874A (en) * | 1999-12-17 | 2001-07-04 | 이세린 | A method of preparation for non-pollutive, natural liquid fertilizer and a non-pollutive, natural liquid fertilizer thereof |
| CN107652039A (en) * | 2017-10-11 | 2018-02-02 | 广西南宁秀珀生物科技有限公司 | Se-enriched bio fertilizer with slow-release function and preparation method thereof |
-
2019
- 2019-06-26 CN CN201910558683.5A patent/CN110357673A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010056874A (en) * | 1999-12-17 | 2001-07-04 | 이세린 | A method of preparation for non-pollutive, natural liquid fertilizer and a non-pollutive, natural liquid fertilizer thereof |
| CN107652039A (en) * | 2017-10-11 | 2018-02-02 | 广西南宁秀珀生物科技有限公司 | Se-enriched bio fertilizer with slow-release function and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 孙传尧: "《选矿工程师手册 第4册 下卷 选矿工业实践》", 31 March 2015, 冶金工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111675574A (en) * | 2020-06-28 | 2020-09-18 | 北部湾海洋新材料研究院 | Slow-release selenium-rich ecological fertilizer for golden camellia and preparation method thereof |
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