CN109967488A - A kind of phosphate ore flotation tailings cooperate with harmless disposal method with ardealite - Google Patents
A kind of phosphate ore flotation tailings cooperate with harmless disposal method with ardealite Download PDFInfo
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- CN109967488A CN109967488A CN201910151225.XA CN201910151225A CN109967488A CN 109967488 A CN109967488 A CN 109967488A CN 201910151225 A CN201910151225 A CN 201910151225A CN 109967488 A CN109967488 A CN 109967488A
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- ardealite
- phosphate ore
- flotation tailings
- ore flotation
- slurry
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
Abstract
A kind of phosphate ore flotation tailings cooperate with a kind of phosphate ore flotation tailings of harmless disposal method to cooperate with harmless disposal method with ardealite with ardealite, and the method steps are as follows: (1) by phosphate ore flotation tailings with ardealite according to phosphate ore flotation tailings: ardealite=1:0.3 ~ 3(butt quality ratio) uniformly mixed；(2) slurry (mass ratio) is made according to solid-to-liquid ratio=1:0.3 ~ 0.5 in the mixture in step (1), using basic agent (the calcination raw material of 0.5 ~ 1 parts by weight, the calcium oxide of 0.5 ~ 1 parts by weight, the magnesia of 1 ~ 1.5 parts by weight is one of or a variety of) adjust slurry pH, it is ensured that and slurry pH is 6 ~ 9.(3) step (2) mixed material is conveyed into the stockpiling of stockpiling ground or is used for other utilization.Compared with prior art, the present invention can not only effectively fix soluble fluoride and phosphorus in ardealite and phosphate ore flotation tailings, while the technique also has many advantages, such as that reaction condition is mild, and process is simple, easy to operate, processing cost is lower.
Description
Technical field
The invention belongs to field of environment protection, are related to sulphur dioxide of phosphor chemical industry solid waste processing disposal field.
Background technique
Ardealite, which refers to, reacts the industrial solid wastes given off, main component with phosphorus ore with sulfuric acid in phosphoric acid production
It is CaSO4·2H2O, in addition containing phosphorus ore containing, fluoride, phosphoric acid, organic matter, the acid non-soluble substance, iron calorize not leached on a small quantity
Close the impurity such as object.With the fast development of phosphorous chemical industry enterprise, China, ardealite discharge amount increases.China's ardealite year discharges at present
For amount up to 50,000,000 t or so, adding up volume of cargo in storage is more than 200,000,000 t.Domestic ardealite mostly uses greatly there are no preferable utilization ways
Directly landfill stockpiling processing disposition, not only land occupation, but also waste of resource, wherein being easy containing harmful substances such as phosphorus, fluorine, organic matters
Surrounding enviroment are polluted.In short, ardealite has seriously restrict the sustainable development of entire phosphorous chemical industry enterprise.
Phosphate ore flotation tailings refer to the by-product that floatation process process generates in Wet-process Phosphoric Acid Production, and main component contains
There is dolomite (CaMg (CO3)2), (Ca5(PO4)3F), CaSO4·2H2O and SiO2.Currently, China's phosphate ore flotation tailings is comprehensive
It closes utilization rate and there was only 7% or so, there are Tailings Dams for a large amount of direct heaps of flotation tailing.Flotation tailing in Tailings Dam can be to mining area week
Surrounding environment pollutes.Be mainly manifested in: under condition of raining, Transport And Transformations occur for some harmful chemicals elements, to big gas and water,
Soil causes seriously to pollute；In addition, the remaining flotation agent of flotation tailing can also cause damages to periphery ecological environment.
The pH value of ardealite is between 2 ~ 4, wherein contain soluble metal ion, such as Ca2+、Mg2+、PO4 3-、F-、Zn2+、
Fe2+、Pb2+、Al3+、Cu2+、Cr6+、As2+.Dolomite (CaMg of the pH value range of phosphate ore flotation tailings in 6 ~ 7, ardealite
(CO3)2) with phosphate ore flotation tailings in H+Reaction generates Mg2+And Ca2+It can PO in stable curing ardealite4 3 -And F-；In addition, phosphorus
OH in mine flotation tailing-The H of ardealite can be neutralized +Water is generated, PO can be promoted4 3 -And F-Stable curing.Ardealite and phosphorus
The reaction equation that may relate to during the collaboration stockpiling of mine flotation tailing is as follows:
OH-+H+=H2O (1)
Ca5(PO4)3F+H++10H2O→3H3PO4+5CaSO4·2H2O+HF (2)
Ca5(PO4)3F+H++2.5H2O→3H3PO4+5CaSO4·0.5H2O+HF (3)
(Ca, Mg, Zn)(CO3)2+H+→CO2+H2O+Ca2++Mg2++Zn2+(4)
CaMg(CO3)2+H++2F-→(Ca, Mg, Zn)F2+CO2+H2O (5)
CaSO4·2H2O+2F-→CaF2+SO4 2-+2H2O (6)
(Ca2+, Mg2+, Zn2+)+2OH-→(Ca, Mg, Zn)(OH)2(7)
(Ca2+, Mg2+, Zn2+)+2F-→ (Ca, Mg, Zn)F2(8)
(Ca, Mg, Zn)(OH)2+PO4 3-→ (Ca, Mg, Zn)PO3(OH)·2H2O (9)
(Ca2+, Mg2+, Zn2+)+PO4 3-→ (Ca, Mg, Zn)3(PO4)2(10)
The present invention carries out phosphate ore flotation tailings with ardealite innoxious stockpiling is cooperateed with to dispose, and it is useless to can be realized simultaneously the two
The effective, harmlessization of object is disposed, and is an important invention for protecting environment.
Summary of the invention
Harmlessness disposing side is cooperateed with ardealite the technical problem to be solved by the present invention is providing a kind of phosphate ore flotation tailings
Method solves the problems, such as two kinds of solid waste disposals in phosphoric acid process production, administers ardealite and phosphate ore flotation tailings are individually stored up
Pollution to atmosphere, water system and soil.The technical scheme is that a kind of phosphate ore flotation tailings cooperateed with ardealite it is harmless
Change method of disposal, specific step is as follows for this method:
(1) by phosphate ore flotation tailings and ardealite according to phosphate ore flotation tailings: ardealite=1:0.3 ~ 3(butt quality ratio) it carries out
Uniformly mixing.
(2) by the mixture in step (1) according to solid-to-liquid ratio=1:0.3 ~ 0.5(butt quality ratio) slurry is made, using alkaline medicine
Agent (the calcination raw material of 0.5 ~ 1 parts by weight, the calcium oxide of 0.5 ~ 1 parts by weight, the magnesia of 1 ~ 1.5 parts by weight it is one of or
It is a variety of) adjust slurry pH, it is ensured that and slurry pH is between 6 ~ 9.
(3) step (2) mixed material is conveyed into the stockpiling of stockpiling ground or is used for other utilization.
The present invention inherently solves phosphate ore flotation tailings, ardealite individually stores up pollution on the environment, maximum
Bright spot is to carry out mixing stockpiling harmless treatment using the respective characteristic of the two.Secondly, calcination raw material refer to water in the present invention
The intermediate product of new type nonaqueous cement rotary kiln dore furnace, main component are CaO(67 ~ 75% in mud production process), SiO2(6
~ 11%), SO3(3 ~ 5%), Al2O3(3 ~ 6%) and Fe2O3(2 ~ 6%) compare technical grade calcium oxide, and the calcination that the present invention uses is raw
Expect active height, the advantages such as at low cost.In addition, magnesia is technical grade light magnesium oxide in the present invention, main component is
MgO(80 ~ 88%), SiO2(8 ~ 12%) and CaO(1 ~ 3%).
Specific embodiment
(1) by phosphate ore flotation tailings and ardealite according to phosphate ore flotation tailings: ardealite=1:0.3 ~ 3(mass ratio) it carries out
Uniformly mixing.
(2) slurry is made according to solid-to-liquid ratio=1:0.3 ~ 0.5 in the mixture in step (1), using basic agent (0.5 ~ 1
The magnesia of the calcination raw material of parts by weight, the calcium oxide of 0.5 ~ 1 parts by weight, 0.5 ~ 1.0 parts by weight is one of or a variety of) it adjusts
Save slurry pH, it is ensured that slurry pH is 6 ~ 9.
(3) step (2) mixed material is conveyed into the stockpiling of stockpiling ground or is used for other utilization.
The present invention inherently solves phosphate ore flotation tailings, ardealite individually stores up pollution on the environment, maximum
Bright spot is the respective characteristic using the two and carries out mixing stockpiling harmless treatment with basic agent.
For the present invention by the experimental verification done in production scene, verification step is identical as described in specific embodiment.It tests
When card, by measuring the content of titanium pigment and soluble fluoride in ardealite before and after the processing and flotation tailing, calculating separately out can
The curing degree of dissolubility phosphorus and soluble fluoride.
Embodiment 1:
A kind of phosphate ore flotation tailings cooperate with harmless disposal method with ardealite, comprising the following steps:
(1) phosphate ore flotation tailings and ardealite are according to phosphate ore flotation tailings: the dry phosphate ore flotation tailings 10kg of ardealite=1:1(: dry
Ardealite 10kg) uniformly mixed；
(2) slurry (dry phosphate ore flotation tailings and ardealite mixing is made according to solid-to-liquid ratio=1:0.3 in the mixture in step (1)
Object 20kg:6L water), use calcination raw material (mass percent 0.5%, i.e. 0.1kg) to adjust slurry pH, it is ensured that the initial pH of slurry
Value is 7.0, is stored up 10 days；
(3) step (2) mixed material is conveyed into the stockpiling of stockpiling ground or is used for other utilization.
Embodiment 2:
A kind of phosphate ore flotation tailings cooperate with harmless disposal method with ardealite, comprising the following steps:
(1) phosphate ore flotation tailings and ardealite are according to phosphate ore flotation tailings: the dry phosphate ore flotation tailings 10kg of ardealite=1:2(: dry
Ardealite 20kg) uniformly mixed；
(2) slurry (dry phosphate ore flotation tailings and ardealite mixing is made according to solid-to-liquid ratio=1:0.4 in the mixture in step (1)
Object 30kg:12L water), using calcium oxide (mass percent 0.1%, i.e. 0.3kg) and calcination raw material, (mass percent is
0.3%, i.e. 0.9kg) adjust slurry pH, it is ensured that and slurry initial pH value is 8.0, is stored up 10 days；
(3) step (2) mixed material is conveyed into the stockpiling of stockpiling ground or is used for other utilization.
Embodiment 3:
A kind of phosphate ore flotation tailings cooperate with harmless disposal method with ardealite, comprising the following steps:
(1) phosphate ore flotation tailings and ardealite are according to phosphate ore flotation tailings: the dry phosphate ore flotation tailings 10kg of ardealite=1:3(: dry
Ardealite 30kg) uniformly mixed；
(2) slurry (dry phosphate ore flotation tailings and ardealite mixing is made according to solid-to-liquid ratio=1:0.5 in the mixture in step (1)
Body 40kg:20L water), using calcium oxide (mass percent 0.2%, i.e. 0.8kg) and calcination raw material, (mass percent is
0.3%, i.e. 1.2kg) adjust slurry pH, it is ensured that and slurry initial pH value is 8.5, is stored up 10 days；
(3) step (2) mixed material is conveyed into the stockpiling of stockpiling ground or is used for other utilization.
Embodiment 4:
A kind of phosphate ore flotation tailings cooperate with harmless disposal method with ardealite, comprising the following steps:
(1) phosphate ore flotation tailings and ardealite are according to phosphate ore flotation tailings: the dry phosphate ore flotation tailings 20kg of ardealite=2:1(: dry
Ardealite 10kg) uniformly mixed；
(2) slurry (dry phosphate ore flotation tailings and ardealite mixing is made according to solid-to-liquid ratio=1:0.5 in the mixture in step (1)
Body 30kg:15L water), using magnesia (mass percent 0.2%, i.e. 0.6kg) and calcination raw material, (mass percent is
0.3%, i.e. 0.9kg) adjust slurry pH, it is ensured that and slurry initial pH value is 8.0, is stored up 10 days；
(3) step (2) mixed material is conveyed into the stockpiling of stockpiling ground or is used for other utilization.
Embodiment 5:
(1) flotation tailing and ardealite are according to phosphate ore flotation tailings: the dry phosphate ore flotation tailings 30kg of ardealite=3:1(: dry phosphorus stone
Cream 10kg) uniformly mixed；
(2) slurry (dry phosphate ore flotation tailings and ardealite mixing is made according to solid-to-liquid ratio=1:0.4 in the mixture in step (1)
Body 40kg:16L water), use magnesia (mass percent 0.3%, i.e. 1.2kg) and calcium oxide (mass percent 0.2%,
That is 0.8kg) adjust slurry pH, it is ensured that and slurry initial pH value is 9.0, is stored up 10 days；
(3) step (2) mixed material is conveyed into the stockpiling of stockpiling ground or is used for other utilization.
Proof list
As can be seen that cooperateing with innoxious storage bay to postpone with ardealite by phosphate ore flotation tailings from above-mentioned each example,
The concentration of soluble phosphate is not higher than 14.00 mg/L, and fluorinion concentration is not higher than 3.00 mg/L, and soluble phosphate is consolidated
Rate is minimum also to reach 96.64%, and soluble fluoride ion curing degree is minimum to reach 98.00%, and leachate pH maintains 6 ~ 9.This is just
It is to say, in ardealite and after phosphate ore flotation tailings mixing stockpiling 10 days, fluorine ion and phosphate concn in leachate, and leach
Liquid pH meets " the discharge standard GB 15580-1995 in Phosphate Fertilizer Industry pollution discharge standard "-fluorine (15mg/L), phosphate
(20mg/L), pH(6 ~ 9).It can be seen that this processing method can not only cooperate with two kinds of solid waste of processing, and method letter simultaneously
Single, cost is relatively low, and efficiency is higher.
Claims (1)
1. the step of a kind of phosphate ore flotation tailings cooperate with harmless disposal method with ardealite, this method is as follows:
(1) by phosphate ore flotation tailings and ardealite according to phosphate ore flotation tailings: ardealite=1:0.3 ~ 3(butt quality ratio) it carries out
Uniformly mixing.
(2) slurry (mass ratio) is made according to solid-to-liquid ratio=1:0.3 ~ 0.5 in the mixture in step (1), using basic agent
(magnesia of the calcination raw material of 0.5 ~ 1 parts by weight, the calcium oxide of 0.5 ~ 1 parts by weight, 1 ~ 1.5 parts by weight is one of or more
Kind) adjusting slurry pH, it is ensured that slurry pH is 6 ~ 9.
(3) step (2) mixed material is conveyed into the stockpiling of stockpiling ground or is used for other utilization.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910151225.XA CN109967488A (en) | 2019-02-28 | 2019-02-28 | A kind of phosphate ore flotation tailings cooperate with harmless disposal method with ardealite |
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| CN201910151225.XA CN109967488A (en) | 2019-02-28 | 2019-02-28 | A kind of phosphate ore flotation tailings cooperate with harmless disposal method with ardealite |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110102559A (en) * | 2019-04-29 | 2019-08-09 | 长江师范学院 | Ardealite cooperates with stable curing method with phosphate ore flotation tailings |
| CN110907330A (en) * | 2019-12-06 | 2020-03-24 | 西南科技大学 | Artificial rainfall simulation device for phosphogypsum pile |
| CN111377632A (en) * | 2020-04-20 | 2020-07-07 | 武汉工程大学 | Phosphogypsum treating agent, phosphogypsum treating method, preparation method of phosphogypsum filling material and phosphogypsum filling material |
| CN112934906A (en) * | 2019-12-11 | 2021-06-11 | 西南科技大学 | Method for innocent treatment of phosphorus tailings and phosphogypsum by burning raw materials |
| CN114455927A (en) * | 2022-01-20 | 2022-05-10 | 云南胜威化工有限公司 | Production method of phosphogypsum building block |
| CN114918219A (en) * | 2022-04-07 | 2022-08-19 | 云南磷化集团有限公司 | Phosphorus tailings harmless treatment method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080003174A1 (en) * | 2006-07-03 | 2008-01-03 | Tripoliven, C.A. | Process for the physiochemical conditioning of chemical gypsum or phospho-gypsum for use in formulation for cement and other construction materials |
| CN103143433A (en) * | 2013-03-06 | 2013-06-12 | 瓮福（集团）有限责任公司 | Method for combined processing of phosphogypsum and phosphate reverse flotation tailings |
| CN105237030A (en) * | 2015-09-11 | 2016-01-13 | 三峡大学 | Phosphorite ore beneficiation tailings cast-in-situ foam concrete mixing material and preparation method thereof |
| CN106698988A (en) * | 2016-12-29 | 2017-05-24 | 吉林建筑大学 | Carbonatite-modified phosphogypsum , and preparation method of carbonatite-modified phosphogypsum |
| CN106915941A (en) * | 2015-12-24 | 2017-07-04 | 贵州川恒化工股份有限公司 | Half water ardealite mine filling material and preparation method thereof |
-
2019
- 2019-02-28 CN CN201910151225.XA patent/CN109967488A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080003174A1 (en) * | 2006-07-03 | 2008-01-03 | Tripoliven, C.A. | Process for the physiochemical conditioning of chemical gypsum or phospho-gypsum for use in formulation for cement and other construction materials |
| CN103143433A (en) * | 2013-03-06 | 2013-06-12 | 瓮福（集团）有限责任公司 | Method for combined processing of phosphogypsum and phosphate reverse flotation tailings |
| CN105237030A (en) * | 2015-09-11 | 2016-01-13 | 三峡大学 | Phosphorite ore beneficiation tailings cast-in-situ foam concrete mixing material and preparation method thereof |
| CN106915941A (en) * | 2015-12-24 | 2017-07-04 | 贵州川恒化工股份有限公司 | Half water ardealite mine filling material and preparation method thereof |
| CN106698988A (en) * | 2016-12-29 | 2017-05-24 | 吉林建筑大学 | Carbonatite-modified phosphogypsum , and preparation method of carbonatite-modified phosphogypsum |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110102559A (en) * | 2019-04-29 | 2019-08-09 | 长江师范学院 | Ardealite cooperates with stable curing method with phosphate ore flotation tailings |
| CN110102559B (en) * | 2019-04-29 | 2020-05-19 | 长江师范学院 | Method for synergistically stabilizing and curing phosphogypsum and phosphorite flotation tailings |
| CN110907330A (en) * | 2019-12-06 | 2020-03-24 | 西南科技大学 | Artificial rainfall simulation device for phosphogypsum pile |
| CN112934906A (en) * | 2019-12-11 | 2021-06-11 | 西南科技大学 | Method for innocent treatment of phosphorus tailings and phosphogypsum by burning raw materials |
| CN111377632A (en) * | 2020-04-20 | 2020-07-07 | 武汉工程大学 | Phosphogypsum treating agent, phosphogypsum treating method, preparation method of phosphogypsum filling material and phosphogypsum filling material |
| CN114455927A (en) * | 2022-01-20 | 2022-05-10 | 云南胜威化工有限公司 | Production method of phosphogypsum building block |
| CN114918219A (en) * | 2022-04-07 | 2022-08-19 | 云南磷化集团有限公司 | Phosphorus tailings harmless treatment method |
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Application publication date: 20190705 |