CN104892303B - A kind of soil conditioner and preparation method of activated phosphorusore mine tailing - Google Patents
A kind of soil conditioner and preparation method of activated phosphorusore mine tailing Download PDFInfo
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Abstract
The present invention relates to a kind of soil conditioner and preparation method of activated phosphorusore mine tailing, using phosphorite tailings powder as raw material, by the way that vinasse and/or organic sludge are activated calcium hard to tolerate, magnesium, phosphorus, silicon, iron in phosphorite tailings by mixed grinding with inorganic activator, prepare soil conditioner, improve activation rate, the product has the elements such as abundant silicon, calcium, magnesium, nitrogen, phosphorus, and the improvement conditioning to acid soil has preferable effect.This method has easy to operate, and raw material is easy to get, good product quality, and course of reaction is simple, advantages of environment protection.
Description
Technical field
The present invention relates to a kind of soil conditioner and preparation method of activated phosphorusore mine tailing, belongs to fertilizer processing with applying skill
Art field.
Background technology
Phosphorus ore is important chemical industry raw mineral materials, in order to meet quality requirement of the phosphoric acid by wet process to raw ore, at present I
State mainly obtains the phosphorus concentrate of qualified production phosphoric acid by various technique of preparings.But 1t phosphorus concentrates are generally often produced, produce
0.44t mine tailings, the annual phosphorite tailings for producing about 7,000,000 t low phosphorus contents, its phosphorus content 10% or so, granularity in 80 mesh or so,
And Tailings utilization is relatively difficult, it is difficult to recovery wherein useful component, causes a large amount of wastes of phosphor resource.
The Land use systems of mid low grade phosphate rock mainly produce calcium magnesium phosphate and calcium superphosphate, and calcium magnesium phosphate effect is preferable,
But energy consumption is higher；Calcium superphosphate is easily fixed after then burying, and effect of increasing production is not notable.Improve phosphorus utilization rate and rationally efficiently
Increasingly cause the concern of people using low-grade phosphate ore.Some advanced treatment technologies or theory are suggested or entered
Row practice, and achieve good effect.There is research to activate low-grade phosphate ore by a variety of methods, such as high-temperature calcination technique, phosphorus
Ore deposit micropowders technology, activation of microorganism technology, part phosphoric acid activation technology (20-60% of theoretical acid dosage), inorganic mineral
Activating technology, organic matter activating technology etc., but the Study of Activation of shorter mention phosphorite tailings.
Vinasse are remaining dregs after wine brewing, are the discarded objects of brewing process.It contains certain nitrogen, phosphorus, potassium, silicon and more
Kind trace element, while also containing abundant organic matter, crude protein, vitamin, saccharomycete, several amino acids etc., by appropriate
Mode process, fertilizer, feed etc. can be made, can turn waste into wealth, realize resources effective utilization.In daily production, with wine
Grain produces organic fertilizer for raw material or organic and inorganic fertilizer is relatively common.
Chinese patent literature CN101891530A (application number 201010172039.3) discloses a kind of activated calcium magnesium phosphate fertilizer
And preparation method thereof, the activated calcium magnesium phosphate fertilizer is processed into by calcium magnesium phosphate and organic activator.Its organic activator is wooden
Element, acid soluble lignin, lignin sodium, alcohol effluent, monosodium glutamate waste liquid, monosodium glutamate waste residue, acid-sludge, furfural dregs, beer filter mud, filter mud of sugar refinery, wind
Change one or more of mixtures in coal, and be added to according to specific ratio in calcium magnesium phosphate, by grinding, place and
Dry and be made.Phosphorus is in activated state in the activated calcium magnesium phosphate fertilizer of the invention, when being applied in soil, can discharge fast and stable,
But the raw material that this method uses is calcium magnesium phosphate, containing citric acid soluble phosphorus, is formed after phosphorus ore is fired, do not refer to without
The phosphorus ore (indissoluble phosphorus) of roasting or even the effect of phosphorite tailings.
Chinese patent literature CN1373108 (application number CN01129772.7) discloses a kind of activation phosphorus of arable farming
Fertilizer composition, it contains 1~3 kind of phosphate fertilizer and at least one humic-acid kind organic activator or/and inorganic activator, the patent
Raw material is phosphate fertilizer such as phosphorus ammonium, ground phosphate rock, calcium superphosphate etc. (water solubility, slightly solubility, solubility in citric acid), is mixed after being moistened with activator
Night obtains.The activator that the patent uses can be such that phosphate fertilizer is activated in soil, but before not applying, the available phosphorus content of fertilizer
Do not change.
Chinese patent literature CN1276359 (application number CN00117223.9) discloses a kind of efficient phosphorous fertilizer without raw acid life
Production method, being added by a certain percentage in ground phosphate rock under certain process conditions using organic and inorganic activator to significantly improve
P availability.Its disclosed organic activator is lignin, inorganic activator be zeolite, bentonite, vermiculite, ammonium zeolite,
One or more in ammonium bentonite, ammonium vermiculite.Although phosphorus of the invention in activated phosphorusore stone has certain effect, its
It is directed to middle GOOD TASTE phosphorus ore (P2O5>22%) phosphorite tailings effect, relatively low to phosphorus content and that other impurities are more is little.
It there is no research to have at present directly to report the open of phosphorite tailings powder activation.
The content of the invention
In view of the shortcomings of the prior art, the present invention provides a kind of soil conditioner of activated phosphorusore mine tailing, by by vinasse
And/or organic sludge is mixed with inorganic activator by calcium hard to tolerate, magnesium, phosphorus, silicon, iron activation in phosphorite tailings, prepares soil conditioning
Agent, activation rate is improved, makes to be difficult to be activated by elements such as the calcium of crop utilization, magnesium, phosphorus, silicon, iron in activated phosphorusore mine tailing,
Abundant nutrient is provided for the growth of crop.
The present invention also provides a kind of preparation method of the soil conditioner of activated phosphorusore mine tailing.
Term explanation
Phosphorite tailings：The phosphoric acid salt mineral that finger can be economically utilized, one of product of separation operation in ore dressing, no
The ore deposit preferably further sorted；Due to technology etc. reason, P in phosphorite tailings2O5Content is generally 8%~15%, impurity compared with
The more and relatively low indissoluble of calcium, magnesium, phosphorus, iron content.
Technical scheme is as follows：
A kind of soil conditioner of activated phosphorusore mine tailing, the soil conditioner are by organic activator and inorganic activator work
Change phosphorite tailings to be made, parts by weight of raw materials composition is as follows：
Phosphorite tailings powder 60-85 parts, organic activator 8-25 parts, inorganic activator 1-10 parts, diethyl aminoethyl hexanoate DA-6 0.01-
0.1 part, reaction terminating agent 0.3-0.8 parts；
Described phosphorite tailings powder total phosphorus content is in below 10wtwt%；
Described organic activator is one or two kinds of mixing of vinasse or organic sludge.
Described inorganic activator is that one or both of potassium carbonate, potassium hydroxide, potassium pyrophosphate are mixed above.
Described reaction terminating agent is anhydrous zinc sulfate or anhydrous magnesium sulfate.
Currently preferred, described organic activator is vinasse.
Currently preferred, described organic activator is organic sludge.
Currently preferred, described inorganic activator is the matter of potassium carbonate and potassium hydroxide, potassium carbonate and potassium hydroxide
Amount is than being 1:1.
Currently preferred, described inorganic activator is potassium hydroxide and potassium pyrophosphate, potassium hydroxide and potassium pyrophosphate
Mass ratio be 1:1.
Currently preferred, described inorganic activator is potassium carbonate and potassium pyrophosphate, potassium carbonate and potassium pyrophosphate quality
Than for 1:1.
Currently preferred, the soil conditioner of activated phosphorusore mine tailing, parts by weight of raw materials forms as follows：
Phosphorite tailings powder 70-85 parts, organic activator 10-20 parts, inorganic activator 1-5 parts；Diethyl aminoethyl hexanoate DA-6 0.03-
0.07 part, reaction terminating agent 0.6-0.7 parts.
Currently preferred, the soil conditioner of activated phosphorusore mine tailing, parts by weight of raw materials forms as follows：
Phosphorite tailings powder 70-85 parts, vinasse 10-20 parts, potassium carbonate and potassium hydroxide 1-5 parts；Diethyl aminoethyl hexanoate DA-6 0.03-
0.07 part, anhydrous zinc sulfate 0.6-0.7 parts.
The preparation method of the soil conditioner of above-mentioned activated phosphorusore mine tailing, including step are as follows：
(1) phosphorite tailings are crushed and phosphorite tailings powder is made, phosphorite tailings powder is mixed with organic activator by proportioning and ground
Mill, milling time 10-15 minutes；
(2) and then diethyl aminoethyl hexanoate DA-6 and inorganic activator are added, grinds 10-15 minutes；Mixture is made；
(3) reaction terminating agent is added into the mixture of step (2), is ground 5-10 minutes, reaction terminating, soil is made and adjusts
Manage agent.
Soil conditioner prepared by the present invention, each main component are：Phosphorous total amount is less than 9wt%, wherein available phosphorus 2.0-
4.0wt%, 0.3-2.0wt% containing potassium, macro-element nutrients can be provided for crop；Calcic 12-20wt%, magnesium 5-9wt%, silicon
0.2-0.5wt%, moderate-element nutrition can be provided for crop；Iron content 0.05-0.1wt%, trace element can be provided for crop；
DA-6 (diethyl aminoethyl hexanoate) 0.03-0.07wt%, crop water and Nutrient Absorption reinforcing agent can be used as, improve crop yield and quality.
This product also has abundant organic matter simultaneously, plays an important roll in terms of soil physical and chemical property, enhancing soil fertility is improved.
The technical principle that the present invention uses：The present invention utilizes vinasse and/or organic sludge and inorganic activator activated phosphorusore
Calcium, magnesium, iron chelating in the carboxylic acid molecules and phosphorus ore of mine tailing, wherein organic matter, improve its activity function, while had
Calcium, magnesium, phosphorus, the iron of activity, while the content of activated silica is improved, by adding the composition beneficial to soil, crop, prepare energy
A variety of nutrition are provided for plant, improve the soil conditioner of soil activation.
Beneficial effects of the present invention are as follows：
1st, the present invention is combined by organic and inorganic and activated, and is overcome the influence of impurity in phosphorite tailings, is made to contain in phosphorite tailings
Measure relatively low calcium, magnesium, phosphorus, silicon, iron fully to activate, be released to the element that can be effectively utilized by plant, substantially increase phosphorus ore tail
The activation rate of calcium, magnesium, phosphorus, silicon, iron in ore deposit, the available phosphorus being activated in phosphorite tailings account for the 40%-70% of total phosphorus.
2nd, the present invention activates the beneficial elements such as the phosphorus, calcium, magnesium of the indissoluble in phosphorite tailings by using organic activator,
The nutrient ratio for being absorbed by crops and utilizing can be effectively improved, has and improves utilization rate of fertilizer, reduces the work of nutrient loss
With；
3rd, inorganic activator of the invention is that one or both of potassium carbonate, potassium hydroxide, potassium pyrophosphate are mixed above,
Improve the activation efficiency of the elements such as phosphorus, calcium, magnesium.
4th, product produced by the present invention and with nutrition it is comprehensive, fertilizer efficiency is lasting, can increase the soil organism, improve soil
The features such as physicochemical property and bioactivity.
5th, the present invention uses discarded phosphorite tailings, using it as raw material, can be solved due to length for the discarded object of flotation of phosphate rock
Problem of environmental pollution caused by phase bulk deposition, and a kind of effective way to turn waste into wealth is provided, there is larger environmental protection meaning
Justice.
6th, the raw materials used wide material sources of the present invention are easy to get, and product preparation process is simple and easy, and production cost is low, and product is attached
Value added height, remarkable in economical benefits.
Embodiment
The present invention is described further with reference to embodiments, but the invention is not restricted to scope as described below.
Embodiment 1
1st, raw material sources：
Phosphorite tailings：Guizhou Wengfu group ore flotation mine tailing, total phosphorus content 8.8wt%；
Vinasse：Yimeng old area the wine industry wine brewing vinasse；
DA-6 (diethyl aminoethyl hexanoate)：It is commercially available, purity 99%
A kind of soil conditioner of activated phosphorusore mine tailing, parts by weight of raw materials composition are as follows：
5 parts of 75 parts of phosphorite tailings powder, 20 parts of vinasse, potassium carbonate and potassium hydroxide；0.05 part of diethyl aminoethyl hexanoate DA-6.Potassium carbonate
It is 1 with potassium hydroxide quality ratio:1,3 parts of anhydrous zinc sulfate.
2nd, soil conditioner is prepared：
(1) phosphorite tailings are crushed and phosphorite tailings powder is made, by proportioning by phosphorite tailings powder and vinasse mixed grinding
10min,
(2) and then diethyl aminoethyl hexanoate DA-6, potassium carbonate and potassium hydroxide are added, ground 10 minutes；Mixture is made；
(3) anhydrous zinc sulfate is added into the mixture of step (2), is ground 5 minutes, reaction terminating, soil conditioning is made
Agent.
It is as shown in table 1 below that each key component content of soil conditioner is made in embodiment 1：
Table 1
Embodiment 2
1st, raw material sources：
Phosphorite tailings：Guizhou Wengfu group ore flotation mine tailing, phosphorus content 8.5%；
Organic sludge：Linyi water process company；
DA-6 (diethyl aminoethyl hexanoate)：It is commercially available, purity 99%,
A kind of soil conditioner of activated phosphorusore mine tailing, parts by weight of raw materials composition are as follows：
4 parts of 80 parts of phosphorite tailings powder, 18 parts of organic sludge, potassium hydroxide and potassium pyrophosphate；0.06 part of diethyl aminoethyl hexanoate DA-6.
Potassium hydroxide is 1 with potassium pyrophosphate mass ratio:1,4 parts of anhydrous magnesium sulfate.
2nd, soil conditioner is prepared：
(1) phosphorite tailings are crushed and phosphorite tailings powder is made, by proportioning by phosphorite tailings powder and organic sludge mixed grinding
5min,
(2) and then diethyl aminoethyl hexanoate DA-6, potassium hydroxide and potassium pyrophosphate are added, ground 10 minutes；Mixture is made；
(3) anhydrous magnesium sulfate is added into the mixture of step (2), is ground 5 minutes, reaction terminating, soil conditioning is made
Agent.
It is as shown in table 2 below that each key component content of soil conditioner is made in embodiment 2：
Table 2
Embodiment 3
1st, raw material sources：
Phosphorite tailings：Guizhou Wengfu group ore flotation mine tailing, phosphorus content 7.9%；
Vinasse：Shandong Lanling Meijiu limited company wine brewing vinasse；
DA-6 (diethyl aminoethyl hexanoate)：It is commercially available, purity 99%
A kind of soil conditioner of activated phosphorusore mine tailing, parts by weight of raw materials composition are as follows：
3 parts of 70 parts of phosphorite tailings powder, 20 parts of vinasse, potassium carbonate and potassium hydroxide；0.05 part of diethyl aminoethyl hexanoate DA-6.Potassium carbonate
It is 1 with potassium hydroxide quality ratio:1,5 parts of anhydrous magnesium sulfate.
2nd, soil conditioner is prepared：
(1) phosphorite tailings are crushed and phosphorite tailings powder is made, by proportioning by phosphorite tailings powder and vinasse mixed grinding
10min,
(2) and then diethyl aminoethyl hexanoate DA-6, potassium carbonate and potassium hydroxide are added, ground 10 minutes；Mixture is made；
(3) anhydrous magnesium sulfate is added into the mixture of step (2), is ground 5 minutes, reaction terminating, soil conditioning is made
Agent.
It is as shown in table 3 below that each key component content of soil conditioner is made in embodiment 3：
Table 3
Embodiment 4
1st, raw material sources：
Phosphorite tailings：Yunnan Zhong Zheng companies ore flotation mine tailing, total phosphorus content 7.5%；
Organic sludge：Linyi water process company, vinasse：Yimeng old area Wine Co., Ltd wine brewing vinasse；
DA-6 (diethyl aminoethyl hexanoate)：It is commercially available, purity 99%
A kind of soil conditioner of activated phosphorusore mine tailing, parts by weight of raw materials composition are as follows：
The mass ratio of 10 parts of 85 parts of phosphorite tailings powder, organic sludge and vinasse, organic sludge and vinasse is 3:2, pyrophosphoric acid
5 parts of potassium；0.03 part of diethyl aminoethyl hexanoate DA-6,4 parts of anhydrous magnesium sulfate.
2nd, soil conditioner is prepared：
(1) phosphorite tailings are crushed and phosphorite tailings powder is made, mix phosphorite tailings powder with organic sludge and vinasse by proportioning
Grinding 10min is closed,
(2) and then diethyl aminoethyl hexanoate DA-6 and potassium pyrophosphate are added, ground 10 minutes；Mixture is made；
(3) anhydrous zinc sulfate is added into the mixture of step (2), is ground 5 minutes, reaction terminating, soil conditioning is made
Agent.
It is as shown in table 4 below that each key component content of soil conditioner is made in embodiment 4：
Table 4
Embodiment 5
1st, raw material sources：
Phosphorite tailings：Yunnan Zhong Zheng companies ore flotation mine tailing, phosphorus content 7.0%；
Vinasse：Shandong Lanling Meijiu limited company wine brewing vinasse
DA-6 (diethyl aminoethyl hexanoate)：It is commercially available, purity 99%,
A kind of soil conditioner of activated phosphorusore mine tailing, parts by weight of raw materials composition are as follows：
5 parts of 80 parts of phosphorite tailings powder, 15 parts of vinasse, potassium carbonate and potassium hydroxide；0.04 part of diethyl aminoethyl hexanoate DA-6.Potassium carbonate
It is 1 with potassium hydroxide quality ratio:1,5 parts of anhydrous zinc sulfate.
2nd, soil conditioner is prepared：
(1) phosphorite tailings are crushed and phosphorite tailings powder is made, by proportioning by phosphorite tailings powder and vinasse mixed grinding
10min,
(2) and then diethyl aminoethyl hexanoate DA-6, potassium carbonate and potassium hydroxide are added, ground 10 minutes；Mixture is made；
(3) anhydrous zinc sulfate is added into the mixture of step (2), is ground 5 minutes, reaction terminating, soil conditioning is made
Agent.
It is as shown in table 5 below that each key component content of soil conditioner is made in embodiment 5：
Table 5
Comparative example 1
A kind of phosphorite tailings soil conditioner, parts by weight of raw materials composition are as follows：
75 parts of phosphorite tailings powder, 25 parts of vinasse, 0.05 part of diethyl aminoethyl hexanoate DA-6.Potassium carbonate is 1 with potassium hydroxide quality ratio:
1,3 parts of anhydrous zinc sulfate, preparation method is the same as embodiment 1.
Comparative example 2
A kind of phosphorite tailings soil conditioner, parts by weight of raw materials composition are as follows：
25 parts of 75 parts of phosphorite tailings powder, potassium carbonate and potassium hydroxide；0.05 part of diethyl aminoethyl hexanoate DA-6.Potassium carbonate and hydroxide
Potassium mass ratio is 1:1,3 parts of anhydrous zinc sulfate.Preparation method is the same as embodiment 1.
Comparative example 3
A kind of phosphorite tailings soil conditioner, parts by weight of raw materials composition are as follows：
75 parts of phosphorite tailings powder, 20 parts of vinasse, 5 parts of zeolite powder；0.05 part of diethyl aminoethyl hexanoate DA-6.3 parts of anhydrous zinc sulfate.System
Preparation Method is the same as embodiment 1.
Comparative example 4
A kind of phosphorite tailings soil conditioner, parts by weight of raw materials composition are as follows：
75 parts of phosphorite tailings powder, 20 parts of vinasse, 5 parts of bentonite；0.05 part of diethyl aminoethyl hexanoate DA-6.3 parts of anhydrous zinc sulfate.System
Preparation Method is the same as embodiment 1.
Experimental example
Effective (being activated) phosphorus, magnesium, calcium, iron and phosphorus ore tail in soil conditioner made from embodiment 1-5 and comparative example 1-4
Phosphorus, magnesium, calcium, the iron that miberal powder (soil conditioner is not made) is not activated are contrasted and see the table below shown in 6, table 7：
Effective magnesium, phosphorus contrast in the different soils conditioner of table 6
Effective calcium, iron contrast in the different soils conditioner of table 7
Note：It is percentage (%) with numeral in upper table.
The soil conditioner made from 1-5 of the embodiment of the present invention and comparative example 1-4 it can be seen from upper table 6,7 experimental datas
In, embodiment 1 is identical with phosphorite tailings, diethyl aminoethyl hexanoate and reaction terminating agent that comparative example 1-4 is used, the difference is that using different
Activator, the organic and inorganic activator that the present invention uses have good activation effect to the phosphorus in phosphorite tailings, magnesium, calcium, iron etc.
Fruit, compared with contrast 1-4 single use organic or inorganic activators or using different inorganic activators, the activation rate of each element
There are obvious raising in various degree, phosphorus forms rate average out to 59%, comparative example average out to 27% wherein in embodiment；Implement
The activation rate average out to 80% of magnesium, comparative example average out to 39% in example；The activation rate average out to 57% of calcium, comparative example in embodiment
Average out to 30%；The activation rate average out to 38% of iron in embodiment, comparative example average out to 18%, this is due to that the present invention uses wine
Grain and/or organic sludge activate jointly with inorganic activator, overcome the influence of impurity in phosphorite tailings, make to contain in phosphorite tailings
Measure relatively low calcium, magnesium, phosphorus, silicon, iron fully to activate, be released to the element that can be effectively utilized by plant, it can be seen that, the present invention is logical
Cross vinasse and/or organic sludge and inorganic activator activated phosphorusore mine tailing, substantially increase calcium in phosphorite tailings, magnesium, phosphorus, silicon,
The activation rate of iron.
Claims (9)
1. a kind of soil conditioner of activated phosphorusore mine tailing, the soil conditioner is passed through by organic activator and inorganic activator
Grinding activated phosphorusore mine tailing is made, and parts by weight of raw materials composition is as follows：
Phosphorite tailings powder 60-85 parts, organic activator 8-25 parts, inorganic activator 1-10 parts, diethyl aminoethyl hexanoate DA-6 0.01-0.1
Part, reaction terminating agent 0.3-0.8 parts；
Described phosphorite tailings powder total phosphorus content is in below 10wtwt%；
Described organic activator is one or two kinds of mixing of vinasse or organic sludge；
Described inorganic activator is that one or both of potassium carbonate, potassium hydroxide, potassium pyrophosphate are mixed above；
Described reaction terminating agent is anhydrous zinc sulfate or anhydrous magnesium sulfate.
2. the soil conditioner of activated phosphorusore mine tailing according to claim 1, it is characterised in that described organic activator
For vinasse.
3. the soil conditioner of activated phosphorusore mine tailing according to claim 1, it is characterised in that described organic activator
For organic sludge.
4. the soil conditioner of activated phosphorusore mine tailing according to claim 1, it is characterised in that described inorganic activator
For potassium carbonate and potassium hydroxide, the mass ratio of potassium carbonate and potassium hydroxide is 1:1.
5. the soil conditioner of activated phosphorusore mine tailing according to claim 1, it is characterised in that described inorganic activator
For potassium hydroxide and potassium pyrophosphate, the mass ratio of potassium hydroxide and potassium pyrophosphate is 1:1.
6. the soil conditioner of activated phosphorusore mine tailing according to claim 1, it is characterised in that described inorganic activator
For potassium carbonate and potassium pyrophosphate, potassium carbonate is 1 with potassium pyrophosphate mass ratio:1.
7. the soil conditioner of activated phosphorusore mine tailing according to claim 1, it is characterised in that parts by weight of raw materials forms such as
Under：
Phosphorite tailings powder 70-85 parts, organic activator 10-20 parts, inorganic activator 1-5 parts；Diethyl aminoethyl hexanoate DA-6 0.03-
0.07 part, reaction terminating agent 0.6-0.7 parts.
8. the soil conditioner of activated phosphorusore mine tailing according to claim 1, it is characterised in that the soil of activated phosphorusore mine tailing
Earth conditioner, parts by weight of raw materials composition are as follows：
Phosphorite tailings powder 70-85 parts, vinasse 10-20 parts, potassium carbonate and potassium hydroxide 1-5 parts；Diethyl aminoethyl hexanoate DA-6 0.03-0.07
Part, anhydrous zinc sulfate 0.6-0.7 parts.
9. the preparation method of the soil conditioner of the activated phosphorusore mine tailing described in claim 1, including step are as follows：
（1）Phosphorite tailings are crushed phosphorite tailings powder is made, by matching phosphorite tailings powder and organic activator mixed grinding, ground
Consume time 10-15 minutes；
（2）Then diethyl aminoethyl hexanoate DA-6 and inorganic activator are added, grinds 10-15 minutes；Mixture is made；
（3）To step（2）Mixture in add reaction terminating agent, grind 5-10 minutes, reaction terminating, soil conditioning be made
Agent.
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| CN106244159A (en) * | 2016-07-29 | 2016-12-21 | 深圳市芭田生态工程股份有限公司 | Soil conditioner, preparation method and applications |
| CN109134145A (en) * | 2018-09-10 | 2019-01-04 | 贵州水务运营有限公司 | The device and method of living soil modifying agent is prepared using sludge |
| CN113636883A (en) * | 2021-08-13 | 2021-11-12 | 云南善施化工有限公司 | Method for producing calcium magnesium phosphate fertilizer from phosphate ore flotation tailings |
| CN114874038A (en) * | 2022-04-29 | 2022-08-09 | 湖北艾迪普生物科技有限公司 | Biological phosphate fertilizer prepared from phosphate ore dressing tailings and preparation method thereof |
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| CN1185184C (en) * | 2001-10-16 | 2005-01-19 | 广东省生态环境与土壤研究所 | Activated phosphate fertilizer composition |
| DE202007016682U1 (en) * | 2007-11-29 | 2008-02-21 | Hubeny, Rudolf | Soil conditioners |
| CN101525258B (en) * | 2008-03-05 | 2012-10-03 | 中国科学院沈阳应用生态研究所 | Soil phosphorus activator and manufacturing method thereof |
| FR2954939B1 (en) * | 2010-01-04 | 2014-02-07 | Timac Agro Internat | NOVEL PHOSPHATE COMPOUNDS AND THEIR USE AS INGRAIS |
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