CN101050140A - Method for producing multiplex siliceous fertilizer from molybdenum mine tailings - Google Patents
Method for producing multiplex siliceous fertilizer from molybdenum mine tailings Download PDFInfo
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- CN101050140A CN101050140A CNA2007100113809A CN200710011380A CN101050140A CN 101050140 A CN101050140 A CN 101050140A CN A2007100113809 A CNA2007100113809 A CN A2007100113809A CN 200710011380 A CN200710011380 A CN 200710011380A CN 101050140 A CN101050140 A CN 101050140A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
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Abstract
This invention discloses a method for producing multi-element silicon fertilizer from molybdenum tailing and dolomite or high-magnesium limestone. The method comprises: calculating the equivalents of acidic oxides and alkaline oxides in molybdenum tailing, dolomite or high-magnesium limestone, and anthracite or white coal, calculating the coal amount for greater than or equal to 1200 deg.C kiln temperature, calculating the amounts of molybdenum tailing and dolomite or high-magnesium limestone at an acidic oxides/alkaline oxides weight ratio of 1:2, mixing with coal, adding calcination additive containing 0.2-1% alkali metal ions, grinding to higher than 80 mesh fine powder, adding into a shaft kiln, calcining at 1200-1350 deg.C to obtain silicon fertilizer clinker, or adding into a pelletizer, adding water, palletizing, calcining at 1200 deg.C or higher to obtain silicon fertilizer clinker, quenching and pulverizing to obtain multi-element silicon fertilizer.
Description
Technical field
The invention belongs to a kind of integrated conduct method of molybdenum mine tailing, particularly a kind of method of utilizing the molybdenum mine tailing to produce the multielement siliceous fertilizer.
Background technology
The molybdenum mine tailing accounts for more than 99% of raw ore, is the primary pollution source in mine.At present, the molybdenum mine tailing is administered technology with the harmless target that turns to, and basic skills is to build a dam to build the storehouse, promptly builds a dam on useless gully or depleted soil, builds a mine tailing storehouse of placing the molybdenum mine tailing, seals storehouse, restore vegetation after fill in the mine tailing storehouse.The problem that this molybdenum tailings processing method exists is, the laid down cost height in mine tailing storehouse, and safeguarding also needs to drop into very big man power and material, and medium-sized mine is annual just to need to drop into expense more than millions of.And, can't solve the groundwater pollution problem that the rainwater leaching causes, the vegetation of occupation of land can be damaged, and produces sand and dust, tailing dam more can cause the dire consequences of geologic hazards such as rubble flow if mountain torrents destroy by rush of water.So the molybdenum mine tailing has become the environomental pollution source of mine maximum.And along with the prolongation of selecting and purchasing time, the address that is fit to build the mine tailing storehouse more and more difficulty is looked for, and distance selects the factory also can be more and more far away, builds the storehouse and handling cost is more and more higher.Simultaneously, the danger of leakage and disrepair is also increasing.Therefore, the environmental problem that the molybdenum mine tailing causes has made mining industry that very heavy discount has been beaten in the contribution of local economic development, and the Sustainable development in future is produced more disadvantageous effect.
Siliceous fertilizer has the raising utilization rate of fertilizer, improves the soil, and increases crop yield, improves diseases and insect pests resistance of crops, and improves effect such as quality of agricultural product, is the necessary nutritive element of the fourth-largest plant after nitrogen, phosphorus, potassium.At present, raw material and technology that siliceous fertilizer is produced are based on siliceous mineral calcining and activatings such as blast furnace water quenching slag chemokinesis and potassium felspar sands.The former is limited by blast furnace raw material, and its composition and fertilizer efficiency are more simple, and the slag that harmful heavy metal exceeds standard can't utilize.The latter contains potassium but trace element deficiency, also needs to exploit the mine and to ore processing pulverizing, has resource, cost and environmental problem.The molybdenum mine tailing contains silicon-dioxide more than 60%, and potassium oxide is more than 7%, and producing siliceous fertilizer with the molybdenum mine tailing should have more superiority than blast furnace water quenching slag and potassium felspar sand.Therefore, how the molybdenum mine tailing is carried out comprehensive treating process, reluctant refuse is manufactured into high-quality siliceous fertilizer, solving molybdenum tailings pollution problem of environment from the source is the important topic of pendulum in face of us.
Summary of the invention
The objective of the invention is to solve existing molybdenum mine tailing processing cost height, problem of environment pollution caused, a kind of method of utilizing the molybdenum mine tailing to produce the multielement siliceous fertilizer is provided, make full use of Mineral resources, turn waste into wealth, realize the utilization again of resource.
The present invention is a raw material with molybdenum mine tailing and rhombspar or high magnesium lime stone, and calcining is produced in shaft kiln or rotary kiln, and the concrete production method in shaft kiln is:
1, by manufacture of cement standard and chemical fertilizers production standard test and calculate acidic oxide and basic oxide total yield number separately in molybdenum mine tailing, rhombspar or high magnesium lime stone and hard coal or the anthracite, wherein aluminium and iron count acidic oxide, and the trace element of＜0.01M is disregarded;
2, the calorific value of selected hard coal of check or anthracite is joined by the use of thermal means according to shaft kiln cement and is calculated 〉=1200 ℃ of coal blending amounts that the kiln temperature is required;
3, according to assay, calculate the amount of allocating into of molybdenum mine tailing and rhombspar or high magnesium lime stone by acidic oxide/basic oxide ≈ 1.2, and mix with coal, obtain raw material principle prescription;
4, add alkali metal containing ion calcining auxiliary agent in above-mentioned batching, alkalimetal ion accounts for 0.2～1% of above-mentioned batching total amount;
5, above-mentioned batching is ground to form fine powder, granularity is more than 80 orders, then, it is joined in the nodulizer, adds the water balling-up;
6, the material of balling-up is joined in the shaft kiln calcine, stopped 20～30 minutes, it is sintered into the siliceous fertilizer grog 〉=1200 ℃ high temperature section;
7, the siliceous fertilizer grog after the calcining is pulverized behind the cold quenching in kiln, and the granularity of pulverizing is more than 80 orders, promptly becomes the multielement siliceous fertilizer.
Described alkali metal containing ion calcining auxiliary agent can also be added to the water, with the water that adds the calcining auxiliary agent and batching balling-up in nodulizer.
Concrete production method in rotary kiln is:
1, by manufacture of cement standard and chemical fertilizers production standard test and calculate the molybdenum mine tailing and rhombspar or high magnesium lime stone in acidic oxide and basic oxide total yield number separately, wherein aluminium and iron count acidic oxide, the trace element of＜0.01M is disregarded;
2,, calculate the amount of allocating into of molybdenum mine tailing and rhombspar or high magnesium lime stone, obtain raw material principle prescription by acidic oxide/basic oxide ≈ 1.1 according to assay;
3, add alkali metal containing ion calcining auxiliary agent in above-mentioned batching, alkalimetal ion accounts for 0.2～1% of above-mentioned batching total amount;
4, above-mentioned batching is ground to form fine powder, granularity is more than 80 orders, then, it is joined in the rotary kiln calcine, and 1200～1350 ℃ temperature lower calcinations 20～30 minutes, it is sintered into the siliceous fertilizer grog;
5, the siliceous fertilizer grog after the calcining is pulverized after wind chilling or shrend, and the granularity of pulverizing is more than 80 orders, promptly becomes the multielement siliceous fertilizer.
Described alkali metal containing ion calcining auxiliary agent is industrial alkali waste, strong base-weak acid salt, natural alkaline earth or strong basicity organic compound.
In the multielement siliceous fertilizer, trace elements such as zinc, boron can also be added in right amount, to adapt to different soil properties and fertilizer efficiency requirement.
The invention has the advantages that:
1, the present invention is a main raw material with the molybdenum mine tailing, and the silicon-dioxide that contains in the molybdenum mine tailing is up to more than 60%, potassium oxide is more than 7%, about aluminium sesquioxide 10%, about ferric oxide 3%, also have total amount to surpass 1% sulphur, copper, manganese, zinc etc., abundant silicon-dioxide can with basic metal, alkaline earth metal oxide calcining generates the silicate that can be utilized by plant absorbing, potassium, phosphorus, sulphur, calcium, magnesium etc. are big, middle amount nutritive element, copper wherein, iron, manganese, zinc, trace elements such as molybdenum can become solubility in citric acid fertilizer by calcining, therefore, produce siliceous fertilizer with the molybdenum mine tailing and have more advantage than producing siliceous fertilizer with blast furnace water quenching slag or potassium felspar sand, not only realized the utilization again of resource, also provide fertilizer of high quality and at a reasonable price for agricultural, simultaneously, solved the phreatic problem of molybdenum tailings pollution from the source, dust pollution and rubble flow hidden danger have been reduced, reduced the environmental protection cost, increased the economic benefit of bargh, guaranteed the Sustainable development of bargh, to bargh, environment and modernization construction all have great importance.
2, be equipped with rhombspar or high magnesium lime stone in the molybdenum mine tailing and strengthen alkaline assistant, the swelling property of utilizing the Magnesium Silicate q-agent of its formation to have promotes calcining, has weakened the hydraulicity of Calucium Silicate powder, makes fertilizer be easy to weathering in soil and decomposes.
Embodiment
Embodiment 1:
1.1, by manufacture of cement standard and chemical fertilizers production standard test and calculate acidic oxide and basic oxide total yield number separately in molybdenum mine tailing, rhombspar and the hard coal, wherein aluminium and iron count acidic oxide, the trace element of＜0.01M is disregarded;
1.2, the check selected anthracitic calorific value, join by the use of thermal means according to shaft kiln cement and calculate 〉=1200 ℃ of coal blending amounts that the kiln temperature is required;
1.3, according to assay, calculate the amount of allocating into of molybdenum mine tailings and rhombspar by acidic oxide/basic oxide ≈ 1.2, and mix with coal, obtain raw material principle prescription;
1.4, in above-mentioned batching, add industrial alkali waste as the calcining auxiliary agent, alkalimetal ion accounts for 0.2% of above-mentioned batching total amount, with catalyzed reaction speed, reduces calcining temperature, and improves the activity of silicon-dioxide;
1.5, above-mentioned batching is ground to form fine powder, granularity is more than 80 orders, then, it is joined in the nodulizer, adds the water balling-up;
1.6, the material of balling-up joined in the shaft kiln calcines, stopped 20 minutes 〉=1200 ℃ high temperature section, it is sintered into the siliceous fertilizer grog;
1.7, the calcining after the siliceous fertilizer grog in kiln, pulverize behind the cold quenching, the granularity of pulverizing is more than 80 orders, promptly become the multielement siliceous fertilizer, in the multielement siliceous fertilizer, can also add zinc element in right amount according to the needs of soil, be used for lacking the soil of zinc, and dispatch from the factory with powder packaging, packing is dispatched from the factory after perhaps granulation, oven dry, the classification, wherein the particle more than 5 millimeters is used for fruit tree, 0.3～5 millimeters be used for the land for growing field crops, 0.3 millimeter is following is used for booth vegetable, above-mentioned multielement siliceous fertilizer also can be used as produces various compound, material fertilizers that compound is fertile.
Embodiment 2:
2.1, by manufacture of cement standard and chemical fertilizers production standard test and calculate acidic oxide and basic oxide total yield number separately in molybdenum mine tailing, high magnesium lime stone and the anthracite, wherein aluminium and iron count acidic oxide, the trace element of＜0.01M is disregarded;
2.2, the check selected anthracite calorific value, join by the use of thermal means according to shaft kiln cement and calculate 〉=1200 ℃ of coal blending amounts that the kiln temperature is required;
2.3, according to assay, calculate the amount of allocating into of molybdenum mine tailings and high magnesium lime stone by acidic oxide/basic oxide ≈ 1.2, and mix with coal, obtain raw material principle prescription;
2.4, in water, add the strong basicity organic compound as the calcining auxiliary agent, alkalimetal ion accounts for 1% of above-mentioned batching total amount, described strong basicity organic compound is useless slurry of phenolate worker waste residue saponification mud, alkali paper-making or furfuraldehyde waste slag etc.;
2.5, above-mentioned batching is ground to form fine powder, granularity is more than 80 orders, then, it is joined in the nodulizer, with the water balling-up that adds the calcining auxiliary agent;
2.6, the material of balling-up joined in the shaft kiln calcines, stopped 30 minutes 〉=1200 ℃ high temperature section, it is sintered into the siliceous fertilizer grog;
2.7, the calcining after the siliceous fertilizer grog in kiln, pulverize behind the cold quenching, the granularity of pulverizing is more than 80 orders, promptly becomes the multielement siliceous fertilizer.
Embodiment 3:
3.1, by manufacture of cement standard and chemical fertilizers production standard test and calculate acidic oxide and basic oxide total yield number separately in molybdenum mine tailing and the rhombspar, wherein aluminium and iron count acidic oxide, the trace element of＜0.01M is disregarded;
3.2, according to assay, calculate the amount of allocating into of molybdenum mine tailings and rhombspar by acidic oxide/basic oxide ≈ 1.1, obtain raw material principle prescription;
3.3, in above-mentioned batching, add natural alkaline earth as the calcining auxiliary agent, alkalimetal ion accounts for 0.5% of above-mentioned batching total amount;
3.4, above-mentioned batching is ground to form fine powder, granularity is more than 80 orders, then, it is joined in the rotary kiln calcine, and 1200 ℃ temperature lower calcinations 30 minutes, it is sintered into the siliceous fertilizer grog;
3.5, the calcining after the siliceous fertilizer grog after wind chilling or shrend, pulverize, the granularity of pulverizing is more than 80 orders, promptly becomes the multielement siliceous fertilizer, can also add boron in right amount according to the needs of soil in the multielement siliceous fertilizer, is used for the soil of boron deficiency.
Embodiment 4:
4.1, by manufacture of cement standard and chemical fertilizers production standard test and calculate the molybdenum mine tailing and high magnesium lime stone in acidic oxide and basic oxide total yield number separately, wherein aluminium and iron count acidic oxide, the trace element of＜0.01M is disregarded;
4.2, according to assay, calculate the amount of allocating into of molybdenum mine tailings and high magnesium lime stone by acidic oxide/basic oxide ≈ 1.1, obtain raw material principle prescription;
4.3, in above-mentioned batching, add strong base-weak acid salt as the calcining auxiliary agent, alkalimetal ion accounts for 0.8% of above-mentioned batching total amount, described strong base-weak acid salt is yellow soda ash, water glass or potassium silicate etc.;
4.4, above-mentioned batching is ground to form fine powder, granularity is more than 80 orders, then, it is joined in the rotary kiln calcine, and 1350 ℃ temperature lower calcinations 20 minutes, it is sintered into the siliceous fertilizer grog;
4.5, the calcining after the siliceous fertilizer grog after wind chilling or shrend, pulverize, the granularity of pulverizing is more than 80 orders, promptly becomes the multielement siliceous fertilizer.
Claims (5)
1, a kind of method of utilizing the molybdenum mine tailing to produce the multielement siliceous fertilizer is characterized in that, is raw material with molybdenum mine tailing and rhombspar or high magnesium lime stone, and the concrete production method in shaft kiln is:
(1) by manufacture of cement standard and chemical fertilizers production standard test and calculate acidic oxide and basic oxide total yield number separately in molybdenum mine tailing, rhombspar or high magnesium lime stone and hard coal or the anthracite, wherein aluminium and iron count acidic oxide, and the trace element of＜0.01M is disregarded;
(2) calorific value of selected hard coal of check or anthracite is joined by the use of thermal means according to shaft kiln cement and is calculated 〉=1200 ℃ of coal blending amounts that the kiln temperature is required;
(3) according to assay, calculate the amount of allocating into of molybdenum mine tailing and rhombspar or high magnesium lime stone by acidic oxide/basic oxide ≈ 1.2, and mix with coal, obtain raw material principle prescription;
(4) add alkali metal containing ion calcining auxiliary agent in above-mentioned batching, alkalimetal ion accounts for 0.2～1% of above-mentioned batching total amount;
(5) above-mentioned batching is ground to form fine powder, granularity is more than 80 orders, then, it is joined in the nodulizer, adds the water balling-up;
(6) material of balling-up is joined in the shaft kiln calcine, stopped 20～30 minutes, it is sintered into the siliceous fertilizer grog 〉=1200 ℃ high temperature section;
(7) the siliceous fertilizer grog after the calcining is pulverized behind the cold quenching in kiln, and the granularity of pulverizing is more than 80 orders, promptly becomes the multielement siliceous fertilizer.
2, the method for utilizing the molybdenum mine tailing to produce the multielement siliceous fertilizer according to claim 1 is characterized in that, described alkali metal containing ion calcining auxiliary agent can also be added to the water, with the water that adds the calcining auxiliary agent and batching balling-up in nodulizer.
3, a kind of method of utilizing the molybdenum mine tailing to produce the multielement siliceous fertilizer is characterized in that, is raw material with molybdenum mine tailing and rhombspar or high magnesium lime stone, and the concrete production method in rotary kiln is:
(1) by manufacture of cement standard and chemical fertilizers production standard test and calculate the molybdenum mine tailing and rhombspar or high magnesium lime stone in acidic oxide and basic oxide total yield number separately, wherein aluminium and iron count acidic oxide, the trace element of＜0.01M is disregarded;
(2), calculate the amount of allocating into of molybdenum mine tailing and rhombspar or high magnesium lime stone, obtain raw material principle prescription by acidic oxide/basic oxide ≈ 1.1 according to assay;
(3) add alkali metal containing ion calcining auxiliary agent in above-mentioned batching, alkalimetal ion accounts for 0.2～1% of above-mentioned batching total amount;
(4) above-mentioned batching is ground to form fine powder, granularity is more than 80 orders, then, it is joined in the rotary kiln calcine, and 1200～1350 ℃ temperature lower calcinations 20～30 minutes, it is sintered into the siliceous fertilizer grog;
(5) the siliceous fertilizer grog after the calcining is pulverized after wind chilling or shrend, and the granularity of pulverizing is more than 80 orders, promptly becomes the multielement siliceous fertilizer.
According to claim 1 or the 3 described methods of utilizing the molybdenum mine tailing to produce the multielement siliceous fertilizer, it is characterized in that 4, described alkali metal containing ion calcining auxiliary agent is industrial alkali waste, strong base-weak acid salt, natural alkaline earth or strong basicity organic compound.
5, according to claim 1 or the 3 described methods of utilizing the molybdenum mine tailing to produce the multielement siliceous fertilizer, it is characterized in that, in the multielement siliceous fertilizer, can also add trace elements such as zinc, boron in right amount.
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101805228A (en) * | 2010-04-26 | 2010-08-18 | 张夫道 | Technology for making molybdenum tailings harmless and using same as raw material for preparing slow-release BB fertilizer |
| CN101851133A (en) * | 2010-04-27 | 2010-10-06 | 广东省生态环境与土壤研究所 | Method for preparing foliage silicon fertilizer and using method thereof |
| CN102218431A (en) * | 2010-04-26 | 2011-10-19 | 张夫道 | Harmless processing method for metal tailings |
| CN102838428A (en) * | 2012-09-11 | 2012-12-26 | 广东万山农业科技开发有限公司 | Granular-structure-based soil conditioner and preparation method thereof |
| CN103553745A (en) * | 2013-10-29 | 2014-02-05 | 范起元 | Preparation method of multi-element mineral water-soluble silicon fertilizer |
| CN104341173A (en) * | 2013-08-08 | 2015-02-11 | 苑大海 | Production method for silicon fertilizer |
| CN104475428A (en) * | 2014-12-02 | 2015-04-01 | 张夫道 | Method for performing innocent treatment on molybdenum tailings at low temperature section |
| CN105272714A (en) * | 2014-07-08 | 2016-01-27 | 金惠仁 | Method for preparing soil conditioner and plant growth regulator from high-purity silica and silica sand |
| CN106187330A (en) * | 2016-07-08 | 2016-12-07 | 贵州鑫亚矿业有限公司 | A kind of amorphous silica prepares the method for high-quality solubility in citric acid siliceous fertilizer |
| CN107586946A (en) * | 2017-09-22 | 2018-01-16 | 中南大学 | A kind of synthetical recovery aluminium from molybdic tailing, potassium, the method for sodium and silicon |
| CN107746293A (en) * | 2017-09-22 | 2018-03-02 | 四川巨星新型材料有限公司 | High activity silicon fertilizer prepared using dump slag and preparation method thereof |
| CN107876216A (en) * | 2017-11-02 | 2018-04-06 | 广东省资源综合利用研究所 | A kind of molybdic tailing recovery molybdenum sulphur and the method that molybdenum siliceous fertilizer is prepared as raw material |
| CN109734482A (en) * | 2019-03-22 | 2019-05-10 | 格丰科技材料有限公司 | A kind of efficient siliceous fertilizer and preparation method thereof |
| CN110079332A (en) * | 2019-05-09 | 2019-08-02 | 上杭鑫昌龙实业有限公司 | Soil conditioner and preparation method thereof and application method |
| CN113441533A (en) * | 2021-07-30 | 2021-09-28 | 昆明理工大学 | Method for accelerating waste stone to form soil by utilizing coal gangue |
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- 2007-05-18 CN CNA2007100113809A patent/CN101050140A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102218431A (en) * | 2010-04-26 | 2011-10-19 | 张夫道 | Harmless processing method for metal tailings |
| CN101805228B (en) * | 2010-04-26 | 2013-04-10 | 张夫道 | Method for harmlessly treating molybdenum mine tailing and preparing slow-release BB fertilizer using the same |
| CN101805228A (en) * | 2010-04-26 | 2010-08-18 | 张夫道 | Technology for making molybdenum tailings harmless and using same as raw material for preparing slow-release BB fertilizer |
| CN101851133A (en) * | 2010-04-27 | 2010-10-06 | 广东省生态环境与土壤研究所 | Method for preparing foliage silicon fertilizer and using method thereof |
| CN101851133B (en) * | 2010-04-27 | 2013-02-06 | 广东省生态环境与土壤研究所 | Method for preparing foliage silicon fertilizer and using method thereof |
| CN102838428A (en) * | 2012-09-11 | 2012-12-26 | 广东万山农业科技开发有限公司 | Granular-structure-based soil conditioner and preparation method thereof |
| CN102838428B (en) * | 2012-09-11 | 2014-08-06 | 广东万山农业科技开发有限公司 | Granular-structure-based soil conditioner and preparation method thereof |
| CN104341173A (en) * | 2013-08-08 | 2015-02-11 | 苑大海 | Production method for silicon fertilizer |
| CN103553745B (en) * | 2013-10-29 | 2015-05-20 | 范起元 | Preparation method of multi-element mineral water-soluble silicon fertilizer |
| CN103553745A (en) * | 2013-10-29 | 2014-02-05 | 范起元 | Preparation method of multi-element mineral water-soluble silicon fertilizer |
| CN105272714A (en) * | 2014-07-08 | 2016-01-27 | 金惠仁 | Method for preparing soil conditioner and plant growth regulator from high-purity silica and silica sand |
| CN104475428A (en) * | 2014-12-02 | 2015-04-01 | 张夫道 | Method for performing innocent treatment on molybdenum tailings at low temperature section |
| CN106187330A (en) * | 2016-07-08 | 2016-12-07 | 贵州鑫亚矿业有限公司 | A kind of amorphous silica prepares the method for high-quality solubility in citric acid siliceous fertilizer |
| CN107586946A (en) * | 2017-09-22 | 2018-01-16 | 中南大学 | A kind of synthetical recovery aluminium from molybdic tailing, potassium, the method for sodium and silicon |
| CN107746293A (en) * | 2017-09-22 | 2018-03-02 | 四川巨星新型材料有限公司 | High activity silicon fertilizer prepared using dump slag and preparation method thereof |
| CN107586946B (en) * | 2017-09-22 | 2019-03-29 | 中南大学 | A method of synthetical recovery aluminium, potassium, sodium and silicon from molybdic tailing |
| CN107876216A (en) * | 2017-11-02 | 2018-04-06 | 广东省资源综合利用研究所 | A kind of molybdic tailing recovery molybdenum sulphur and the method that molybdenum siliceous fertilizer is prepared as raw material |
| CN109734482A (en) * | 2019-03-22 | 2019-05-10 | 格丰科技材料有限公司 | A kind of efficient siliceous fertilizer and preparation method thereof |
| CN110079332A (en) * | 2019-05-09 | 2019-08-02 | 上杭鑫昌龙实业有限公司 | Soil conditioner and preparation method thereof and application method |
| CN113441533A (en) * | 2021-07-30 | 2021-09-28 | 昆明理工大学 | Method for accelerating waste stone to form soil by utilizing coal gangue |
| CN113441533B (en) * | 2021-07-30 | 2023-04-07 | 昆明理工大学 | Method for accelerating waste stone to form soil by utilizing coal gangue |
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