CN102976858B - Slow-release phosphate fertilizer regenerated from phosphorus-containing waste residue - Google Patents
Slow-release phosphate fertilizer regenerated from phosphorus-containing waste residue Download PDFInfo
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- CN102976858B CN102976858B CN201210555524.8A CN201210555524A CN102976858B CN 102976858 B CN102976858 B CN 102976858B CN 201210555524 A CN201210555524 A CN 201210555524A CN 102976858 B CN102976858 B CN 102976858B
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Abstract
The invention relates to a slow-release phosphate fertilizer regenerated from phosphorus-containing waste residue, which realizes the purposes of slowing the release of phosphate fertilizer and prolonging the fertilizer efficiency period. The slow-release phosphate fertilizer is formed by drying, mixing and crushing 6-8 parts of phosphate ore tailing sand by weight, 2-4 parts of phosphate residue by weight, and 0.5-1 part of phosphorus mud residue by weight. The slow-release phosphate fertilizer regenerated from phosphorus-containing waste residue disclosed by the invention effectively utilizes phosphorus industrial waste residue, as well as is low in raw material cost, slow to release available phosphorus, long and stable in fertilizer efficiency period, low in application amount, and capable of effectively reducing soil hardening, thus effectively utilizing the phosphorus industrial waste residue and preventing excessive phosphorus which cannot be absorbed by plants in the phosphate fertilizer from being washed away with rainwater to pollute the water source of brooks, and then being beneficial to environmental protection.
Description
The invention belongs to chemical fertilizer formula technique, particularly can in soil, slowly discharge the long-acting phosphate fertilizer formula technique of available phosphorus nutrient.
Background technology
Phosphate fertilizer is a kind of universal chemical fertilizer, and take quick-acting phosphate fertilizer as main, raw material sources are in Rock Phosphate (72Min BPL).Quick-acting phosphate fertilizer can not be absorbed by plants in the short period of time in soil, flows into stream with rainwater, and polluted source, because application times is many, easily causes soil compaction, and Financial cost is also because consumption increases greatly.
Chinese patent ZL2005100486491 discloses a kind of long-acting mixing phosphate fertilizer, is weight percent phosphogypsum 20%-30%, calcium magnesium blast furnace waste material 10%-20%, and surplus is secondary ground phosphate rock, is spilled into isobutylidene two urea solutions and the water solvent of gross weight 0.003%.
Isobutylidene two ureas are chemical of a kind of costliness, and one ton of fertilizer of every production is used isobutylidene two urea 0.03KG, and the mixed phosphorus fertilizer cost that this patented technology is produced increases by 150 yuan per ton.
Summary of the invention
The object of this invention is to provide a kind of industrial residue regeneration phosphate fertilizer, its fertilizer efficiency time is grown and stablizes cheap environmental protection.
Technical scheme of the present invention is:
A kind of phosphorus-containing waste slag regeneration slow-release phosphate fertilizer, is obtained than raw material preparation by following weight:
Rock Phosphate (72Min BPL) CHARACTERISTICS OF TAILINGS SAND 6-8, phosphoric acid slag 2-4, mud phosphorus slag 0.5-1,
Preferred: Rock Phosphate (72Min BPL) CHARACTERISTICS OF TAILINGS SAND 7, phosphoric acid slag 3, mud phosphorus slag 1,
The phosphorous weight 15%-28% of described Rock Phosphate (72Min BPL) CHARACTERISTICS OF TAILINGS SAND left and right, the described phosphorous weight 5%-12% of phosphoric acid slag, the described phosphorous weight 4.5%-12% of mud phosphorus slag, described phosphorus content is by weight percentage.
Production method:
One, get the processing of the each raw material drying of described weight ratio, dry, or natural airing;
Two, mix;
Three, fragmentation, screening;
Four, detection, packing, warehouse-in.
Described Rock Phosphate (72Min BPL) CHARACTERISTICS OF TAILINGS SAND derives from the byproduct of Rock Phosphate (72Min BPL) factory, take sandstone as main, is the residual thing of leaving over of washing ore deposit, and normal conditions, do refuse processing.And phosphorous weight 15%-28% left and right is wherein the phosphor resource that can recycle.
Phosphoric acid slag derives from produces residue after phosphoric acid, endanger very greatly, prevents pollution to bury to process.Conventionally wherein phosphorous weight is 5%-12% left and right, and acid composition is wherein conducive to slow decomposition and the release of phosphate fertilizer, utilizes phosphoric acid slag to have two effects as one of composition of the present invention, the one, and sour environment, the 2nd, utilize available phosphorus wherein.
Mud phosphorus slag is the waste residue of producing after yellow phosphorus, abandons and buries processing, phosphorous weight 4.5%-12%.
Phosphorus content of the present invention refers to phosphorus pentoxide content.
In phosphorous industrial residue, all contain available phosphor resource above, through long-term experiment, mix by described proportioning raw material, add described a certain proportion of phosphoric acid slag, can effectively make wherein contained phosphate fertilizer composition in soil, meet water and slowly discharge, at effective P of the initial stage of using
2o
5>=12%, use 90 days effective P afterwards
2o
5for 3.6%-8.4%, thereby reach the slow release effect that fertilizer efficiency is long and stable.General fertilizer efficiency can reach 6 months to 12 months.
Sample censorship, the effective phosphorus pentoxide content of phosphorus-containing waste slag regeneration slow-release phosphate fertilizer the key technical indexes of the present invention reaches 13.4%, is qualified product.
Phosphorus-containing waste slag regeneration slow-release phosphate fertilizer of the present invention; effectively utilize phosphorus industrial residue; raw materials cost is low; scientific and reasonable proportioning slowly discharges available phosphorus, and fertilizer efficiency is grown and stablized, and amount of application is little; effectively reduce soil compaction; both made phosphorus industrial residue effectively be recycled, and do not washed away and pollute water source, stream, enabling environment protection because phosphorus excessive in phosphate fertilizer is not absorbed by plants with rainwater again.
Embodiment:
Now in conjunction with executing example, the invention will be further described, but be not limited to embodiment.
Embodiment 1,
A kind of phosphorus-containing waste slag regeneration slow-release phosphate fertilizer, weight ratio raw material: Rock Phosphate (72Min BPL) CHARACTERISTICS OF TAILINGS SAND 6, phosphoric acid slag 2,
The phosphorous weight 15%-20% of described Rock Phosphate (72Min BPL) CHARACTERISTICS OF TAILINGS SAND, the described phosphorous weight 5%-8% of phosphoric acid slag, 400 ℃ of 5-6 minute of drying treatment, make wherein moisture content≤14%; Mix, fragmentation, screening is 80 orders, detection, packing, warehouse-in.
Embodiment 2,
A kind of phosphorus-containing waste slag regeneration slow-release phosphate fertilizer, weight ratio raw material: Rock Phosphate (72Min BPL) CHARACTERISTICS OF TAILINGS SAND 7, phosphoric acid slag 3,
The phosphorous weight 20%-28% of described Rock Phosphate (72Min BPL) CHARACTERISTICS OF TAILINGS SAND, the described phosphorous weight 5%-10% of phosphoric acid slag, drying treatment sunny day Exposure to Sunlight 2 to 3 days, makes wherein moisture content≤14%; Mix, fragmentation, screening is 80 orders, detection, packing, warehouse-in
Embodiment 3,
A kind of phosphorus-containing waste slag regeneration slow-release phosphate fertilizer, weight ratio raw material: Rock Phosphate (72Min BPL) CHARACTERISTICS OF TAILINGS SAND 8, phosphoric acid slag 3.5,
The phosphorous weight 20% of described Rock Phosphate (72Min BPL) CHARACTERISTICS OF TAILINGS SAND, the described phosphorous weight 10%-12% of phosphoric acid slag, drying treatment sunny day Exposure to Sunlight 2 to 3 days, makes wherein moisture content≤14%; Mix, fragmentation, screening is 80 orders, detection, packing, warehouse-in.Storehouse.
Embodiment 4,
A kind of phosphorus-containing waste slag regeneration slow-release phosphate fertilizer, weight ratio raw material: Rock Phosphate (72Min BPL) CHARACTERISTICS OF TAILINGS SAND 7, phosphoric acid slag 3, mud phosphorus slag 0.7,
The phosphorous weight 16% of described Rock Phosphate (72Min BPL) CHARACTERISTICS OF TAILINGS SAND, the described phosphorous weight 5%-8% of phosphoric acid slag, the phosphorous weight 6% of described mud phosphorus slag, drying treatment sunny day Exposure to Sunlight 2 to 3 days, makes wherein moisture content≤14%; Mix, fragmentation, screening is 80 orders, detection, packing, warehouse-in.
Embodiment 5,
A kind of phosphorus-containing waste slag regeneration slow-release phosphate fertilizer, weight ratio raw material: Rock Phosphate (72Min BPL) CHARACTERISTICS OF TAILINGS SAND 8, phosphoric acid slag 4, mud phosphorus slag 1,
The phosphorous weight 15% of described Rock Phosphate (72Min BPL) CHARACTERISTICS OF TAILINGS SAND, the phosphorous weight 6% of described phosphoric acid slag, the phosphorous weight 12% of described mud phosphorus slag, drying treatment sunny day Exposure to Sunlight 4 days, makes wherein moisture content≤14%; Mix, fragmentation, screening is 80 orders, detection, packing, warehouse-in.
Detected result, effectively P
20
5>=12%, censorship result: effectively P
2o
5be 13.4%.
Within the scope of weight ratio of the present invention, allocate phosphorous high raw material phosphor ore CHARACTERISTICS OF TAILINGS SAND consumption, make product meet effective P
2o
5>=12% requirement.
Claims (4)
1. a phosphorus-containing waste slag regeneration slow-release phosphate fertilizer, is mainly obtained than raw material preparation by following weight:
Rock Phosphate (72Min BPL) CHARACTERISTICS OF TAILINGS SAND 6-8, phosphoric acid slag 2-4, the phosphorous weight 15%-28% of described Rock Phosphate (72Min BPL) CHARACTERISTICS OF TAILINGS SAND; The described phosphorous weight 5%-12% of phosphoric acid slag.
2. phosphorus-containing waste slag regeneration slow-release phosphate fertilizer according to claim 1, is characterized in that, contains weight ratio mud phosphorus slag 0.5-1, the described phosphorous weight 4.5%-12% of mud phosphorus slag.
3. phosphorus-containing waste slag regeneration slow-release phosphate fertilizer according to claim 1, is characterized in that Rock Phosphate (72Min BPL) CHARACTERISTICS OF TAILINGS SAND 7, phosphoric acid slag 3.
4. phosphorus-containing waste slag regeneration slow-release phosphate fertilizer according to claim 2, is characterized in that Rock Phosphate (72Min BPL) CHARACTERISTICS OF TAILINGS SAND 7, phosphoric acid slag 3, mud phosphorus slag 1.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210555524.8A CN102976858B (en) | 2012-12-05 | 2012-12-05 | Slow-release phosphate fertilizer regenerated from phosphorus-containing waste residue |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210555524.8A CN102976858B (en) | 2012-12-05 | 2012-12-05 | Slow-release phosphate fertilizer regenerated from phosphorus-containing waste residue |
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| CN102976858A CN102976858A (en) | 2013-03-20 |
| CN102976858B true CN102976858B (en) | 2014-06-25 |
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| CN201210555524.8A Expired - Fee Related CN102976858B (en) | 2012-12-05 | 2012-12-05 | Slow-release phosphate fertilizer regenerated from phosphorus-containing waste residue |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103360145A (en) * | 2013-07-28 | 2013-10-23 | 瓮福（集团）有限责任公司 | Technology of producing ammonium sulfate phosphate product from tailing slag |
| CN106631175A (en) * | 2017-01-18 | 2017-05-10 | 湖南省经济地理研究所 | Method for preparing phosphate fertilizer from phosphate ores |
| CN111018571A (en) * | 2019-11-22 | 2020-04-17 | 中国农业大学 | Method for activating and utilizing low-grade phosphate ore |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1159436A (en) * | 1996-03-12 | 1997-09-17 | 云南磷肥厂 | Mixed phosphate fertilizer |
| CN1229773A (en) * | 1999-02-04 | 1999-09-29 | 梁俊 | Ecological rare-earth phosphate fertilizer and its prodn. method |
| CN1970508A (en) * | 2005-11-25 | 2007-05-30 | 李德昌 | Novel long-acting mixing phosphate fertilizer |
-
2012
- 2012-12-05 CN CN201210555524.8A patent/CN102976858B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1159436A (en) * | 1996-03-12 | 1997-09-17 | 云南磷肥厂 | Mixed phosphate fertilizer |
| CN1229773A (en) * | 1999-02-04 | 1999-09-29 | 梁俊 | Ecological rare-earth phosphate fertilizer and its prodn. method |
| CN1970508A (en) * | 2005-11-25 | 2007-05-30 | 李德昌 | Novel long-acting mixing phosphate fertilizer |
Non-Patent Citations (2)
| Title |
|---|
| 何蓉等.磷矿尾矿和石灰渣在磷复肥生产中的应用与建议.《硫磷设计与粉体工程》.2011,(第4期),第46-48页. * |
| 蒋柏藩.中低品位磷矿粉直接施用的研究.《化工矿山技术》.1990,第32-34页. * |
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