CN108423790A - A kind of preparation formula and preparation method thereof except fluorite mineralizer - Google Patents
A kind of preparation formula and preparation method thereof except fluorite mineralizer Download PDFInfo
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- CN108423790A CN108423790A CN201810342758.1A CN201810342758A CN108423790A CN 108423790 A CN108423790 A CN 108423790A CN 201810342758 A CN201810342758 A CN 201810342758A CN 108423790 A CN108423790 A CN 108423790A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/285—Treatment of water, waste water, or sewage by sorption using synthetic organic sorbents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
- C02F1/583—Treatment of water, waste water, or sewage by removing specified dissolved compounds by removing fluoride or fluorine compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/12—Halogens or halogen-containing compounds
- C02F2101/14—Fluorine or fluorine-containing compounds
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a kind of preparation formulas and preparation method thereof except fluorite mineralizer, can be applied in fluoride waste mineralising processing procedure.It is described except fluorite mineralizer formula is made of each component of following weight：Aluminium polychloride（PAC）40 100g, 10 150g of potassium chloride, 156 390g of aluminium hydroxide, 100 300g of sodium hydroxide, 5 15g of sodium hypochlorite, 5 10g of aluminum sulfate, anionic polyacrylamide（APAM）15 50g, water 1L, 5 10ml/L of triethanolamine, rare earth are added with mixture solution by 0.001mol/L.Should be handled for fluoride waste mineralising except fluorite mineralizer, have processing cost is low, preparation method is simple, non-toxic, sludge settling speed soon, body refuse moisture content is low and can realize recycling, stable water outlet and can be down to 4mg/L（In terms of F）, meet《Integrated wastewater discharge standard（GB8978~1996）》Middle I grades of discharge standard 10mg/L.
Description
Technical field
The present invention relates to one kind removing fluorite mineralizer, needs to use in the depth fluorine removal processing procedure of specifically a kind of fluoride waste
Except fluorite mineralizer formula and preparation method thereof.
Background technology
It is one of new chemical materials to be fluorinated work, is known as " Gold Industry ", and fluorine material often has high-performance, high attached
Value added, high intensity, the excellent properties such as corrosion resistant insulation are widely used in the key areas such as military project, national defence, chemical industry, machinery, have wide
The wealthy market space.
The generation of fluoride waste can cause sternly with fluorine content is excessively high in the exploitation and production process of fluorinated product, in water
The environmental pollution of weight, drinking or absorbing the exceeded water of fluorine content can all cause damages to the normal growth of animals and plants, or even jeopardize
Life and health.Fluoride waste fluorine ion after being handled using conventional method, which often has content, to be reached《Integrated wastewater discharges
Standard（GB8978~1996）》Middle I grades of discharge standard 10mg/L, and since the solid particle of formation is thin, it is not easy precipitation separation,
In addition the problems such as press filtration body refuse moisture content is high.Therefore, the present invention provide a kind of low cost, high efficiency, prepare simple, nontoxicity,
Sinking speed is fast, the low achievable recycling of body refuse moisture content, stable water outlet and can be down to 4mg/L（In terms of F）Depth fluorine removal mineralising
The purpose of waste water advanced fluorine removal is realized in agent.
Invention content
The purpose of the present invention is to provide fluorite mineralizer, place are removed needed for a kind of advanced treatment process of fluorine-containing silicon waste water
Reason process utilizes hydrothermal mineralization, so that the Element Mineralizations such as fluorine in solution, silicon, phosphorus is formed stable hyrate precipitation, and by coating, inhaling
The effects that attached, ion exchange, complexing, carries out depth fluorine removal.And the addition of rare earth element has larger impact to its water purification performance,
Coagulation effect can be improved, the solubility product of calcirm-fluoride and fluoro complex can be changed, reduce solubility.It is detached eventually by precipitation, mistake
It is to be discharged, it can be achieved that qualified discharge to filter filtrate, and the filter cake after separation can realize recycling containing wet low.
The one kind implemented according to the present invention is except fluorite mineralizer formula and preparation method thereof, to solve to carry in above-mentioned background technology
The problem of going out, including the following contents.
To realize that above-mentioned target, the present invention provide the following technical solutions：
A kind of depth removes fluorite mineralizer formula, which is characterized in that includes the raw material of following parts by weight：Aluminium polychloride（PAC）
40-100g, potassium chloride 10-150g, aluminium hydroxide 156-390g, sodium hydroxide 100-300g, sodium hypochlorite 5-15g, aluminum sulfate
5-10g, anionic polyacrylamide（APAM）15-50g, water 1L, triethanolamine 5-10ml/L, rare earth are pressed with mixture solution
0.001mol/L is added.
It designs as a further solution of the present invention：Include the raw material of following parts by weight：Aluminium polychloride（PAC）70g,
Potassium chloride 80g, aluminium hydroxide 234g, sodium hydroxide 225g, sodium hypochlorite 10g, aluminum sulfate 8g, anionic polyacrylamide
（APAM）40g, water 1L, triethanolamine 6ml/L, rare earth are added with mixture solution by 0.001mol/L.
It designs as a further solution of the present invention：The rare earth is yttrium chloride/yttrium nitrate.
Further, the invention also provides a kind of except the preparation method of fluorite mineralizer, which is characterized in that specific steps
For：
（1）Aluminium polychloride, potassium chloride, aluminium hydroxide, sodium hydroxide, sodium hypochlorite, aluminum sulfate, the moon are weighed according to weight fraction
Cationic polyacrylamide, water, triethanolamine, rare earth are spare；
（2）By potassium chloride, aluminium hydroxide, sodium hydroxide is added to the water, and is boiled in 95-130 DEG C, and stirring is complete to dissolving, and obtains
Spare mixed solution a；
（3）Yttrium oxide is added in the mixed solution of concentrated nitric acid and hydrochloric acid, a timing is dissolved by heating in 40-90 DEG C of water-bath
Between.Certain time is no less than 30min.Obtain spare mixed solution b；
（4）Xiang Shuizhong sequentially adds aluminium polychloride, anionic polyacrylamide, sodium hypochlorite, and a kind of material is often added and is both needed to
5-10min is stirred to being completely dissolved, obtains spare mixed solution c；
（5）Spare mixed solution b, spare mixed solution c and triethanolamine are sequentially added into above-mentioned spare mixed solution a；
As further instruction of the present invention, the step（2）By potassium chloride, aluminium hydroxide, sodium hydroxide is added to the water,
It boils, stirring is complete to dissolving, and at least dissolves 30min under the conditions of need to boiling at 120 DEG C.
As further instruction of the present invention, the step（3）The mixing that yttrium oxide is added to concentrated nitric acid and hydrochloric acid is molten
In liquid, is dissolved by heating in 55 DEG C of water-baths and be no less than 30min, be configured to 110-150g/L.
As further instruction of the present invention, the step（5）To step（2）Step is sequentially added in gained a liquid（3）Institute
Obtain b liquid, step（4）Gained c liquid and triethanolamine 6ml/L, gained mixture are stirred 10min to being mixed thoroughly,
Up to except fluorite mineralizer finished product.
Compared with prior art, main advantageous effect of the invention is：
The Element Mineralizations such as fluorine in solution, silicon, phosphorus should be made to form stable aquation precipitation except fluorite mineralizer, and by cladding, absorption, from
Son exchanges, complexing carries out depth defluorinate.With low cost, high efficiency, preparation is simple, non-toxic, sinking speed is fast, body refuse
Moisture content is low and can realize recycling, stable water outlet and can be down to 4mg/L（In terms of F）Meet《Integrated wastewater discharge standard（GB8978
~1996）》The advantages of middle I grades of discharge standard 10mg/L；It prepares simply, raw material is easy to get；In addition, the depth is carried out except fluorite mineralizer
Wastewater treatment method is simple, and water quality is good after processing, and environmental risk is low.
Specific implementation mode
The technical solution of this patent is described in further detail With reference to embodiment.
Case study on implementation 1
One kind removing fluorite mineralizer formula, includes the raw material of following parts by weight：Aluminium polychloride（PAC）40g, potassium chloride 10g, hydrogen
Aluminium oxide 156g, sodium hydroxide 100g, sodium hypochlorite 5g, aluminum sulfate 5g, anionic polyacrylamide（APAM）15g, water 1L, three
Ethanol amine 5ml/L, rare earth are added with mixture solution by 0.001mol/L.
A kind of preparation method except fluorite mineralizer, the specific steps are：
（1）Aluminium polychloride, potassium chloride, aluminium hydroxide, sodium hydroxide, sodium hypochlorite, aluminum sulfate, the moon are weighed according to weight fraction
Cationic polyacrylamide, water, triethanolamine, rare earth are spare；
（2）By potassium chloride, aluminium hydroxide, sodium hydroxide is added to the water, and is boiled in 95 DEG C, and stirring is complete to dissolving；
（3）Yttrium oxide is added in the mixed solution of concentrated nitric acid and hydrochloric acid, certain time is dissolved by heating in 40 DEG C of water-baths.One
Fix time no less than 30min.
（4）Xiang Shuizhong sequentially adds aluminium polychloride, anionic polyacrylamide, sodium hypochlorite, and a kind of material is often added
Stirring 5min is required to being completely dissolved；
（5）To step（2）Step is sequentially added in gained a liquid（3）Gained b liquid, step（4）Gained c liquid and triethanolamine 5ml/
L, mixture are stirred 10min to being mixed thoroughly to get except fluorite mineralizer finished product.
Case study on implementation 2
One kind removing fluorite mineralizer formula, includes the raw material of following parts by weight：Aluminium polychloride（PAC）100g, potassium chloride 150g,
Aluminium hydroxide 390g, sodium hydroxide 300g, sodium hypochlorite 15g, aluminum sulfate 10g, anionic polyacrylamide（APAM）50g, water
1L, triethanolamine 10ml/L, rare earth are added with mixture solution by 0.001mol/L.
A kind of preparation method except fluorite mineralizer, the specific steps are：
（1）Aluminium polychloride, potassium chloride, aluminium hydroxide, sodium hydroxide, sodium hypochlorite, aluminum sulfate, the moon are weighed according to weight fraction
Cationic polyacrylamide, water, triethanolamine, rare earth are spare；
（2）By potassium chloride, aluminium hydroxide, sodium hydroxide is added to the water, and is boiled in 130 DEG C, and stirring is complete to dissolving；
（3）Yttrium oxide is added in the mixed solution of concentrated nitric acid and hydrochloric acid, certain time is dissolved by heating in 90 DEG C of water-baths.One
Fix time no less than 30min.
（4）Xiang Shuizhong sequentially adds aluminium polychloride, anionic polyacrylamide, sodium hypochlorite, and a kind of material is often added
Stirring 10min is required to being completely dissolved.
（5）To step（2）Step is sequentially added in gained a liquid（3）Gained b liquid, step（4）Gained c liquid and triethanolamine
10ml/L, mixture are stirred 10min to being mixed thoroughly to get except fluorite mineralizer finished product.
Case study on implementation 3
One kind removing fluorite mineralizer formula, includes the raw material of following parts by weight：Aluminium polychloride（PAC）60g, potassium chloride 50g, hydrogen
Aluminium oxide 234g, sodium hydroxide 180g, sodium hypochlorite 8g, aluminum sulfate 6g, anionic polyacrylamide（APAM）25g, water 1L, three
Ethanol amine 6ml/L, rare earth are added with mixture solution by 0.001mol/L.
A kind of preparation method except fluorite mineralizer, the specific steps are：
（1）Aluminium polychloride, potassium chloride, aluminium hydroxide, sodium hydroxide, sodium hypochlorite, aluminum sulfate, the moon are weighed according to weight fraction
Cationic polyacrylamide, water, triethanolamine, rare earth are spare；
（2）By potassium chloride, aluminium hydroxide, sodium hydroxide is added to the water, and is boiled in 110 DEG C, and stirring is complete to dissolving；
（3）Yttrium oxide is added in the mixed solution of concentrated nitric acid and hydrochloric acid, certain time is dissolved by heating in 55 DEG C of water-baths.One
Fix time no less than 30min.
（4）Xiang Shuizhong sequentially adds aluminium polychloride, anionic polyacrylamide, sodium hypochlorite, and a kind of material is often added
Stirring 6min is required to being completely dissolved；
（5）To step（2）Step is sequentially added in gained a liquid（3）Gained b liquid, step（4）Gained c liquid and triethanolamine 6ml/
L, mixture are stirred 10min to being mixed thoroughly to get except fluorite mineralizer finished product.
Case study on implementation 4
One kind removing fluorite mineralizer formula, includes the raw material of following parts by weight：Aluminium polychloride（PAC）60g, potassium chloride 50g, hydrogen
Aluminium oxide 234g, sodium hydroxide 180g, sodium hypochlorite 8g, aluminum sulfate 6g, anionic polyacrylamide（APAM）25g, water 1L, three
Ethanol amine 6ml/L, rare earth are added with mixture solution by 0.001mol/L.
A kind of preparation method except fluorite mineralizer, the specific steps are：
（1）Aluminium polychloride, potassium chloride, aluminium hydroxide, sodium hydroxide, sodium hypochlorite, aluminum sulfate, the moon are weighed according to weight fraction
Cationic polyacrylamide, water, triethanolamine, rare earth are spare；
（2）By potassium chloride, aluminium hydroxide, sodium hydroxide is added to the water, and is boiled in 125 DEG C, and stirring is complete to dissolving；
（3）Yttrium oxide is added in the mixed solution of concentrated nitric acid and hydrochloric acid, certain time is dissolved by heating in 75 DEG C of water-baths.One
Fix time no less than 30min.
（4）Xiang Shuizhong sequentially adds aluminium polychloride, anionic polyacrylamide, sodium hypochlorite, and a kind of material is often added
Stirring 8min is required to being completely dissolved；
（5）To step（2）Step is sequentially added in gained a liquid（3）Gained b liquid, step（4）Gained c liquid and triethanolamine 8ml/
L, mixture are stirred 10min to being mixed thoroughly to get except fluorite mineralizer finished product.
Prepared by application implementation case 1-4 removes the waste water advanced fluorine removal processing of fluorite mineralizer finished product 250g/L progress, tests water
Sample amount is 10L, and treatment effect is as follows, unit（mg/L）：
| Serial number | 1 | 2 | 3 | 4 | 5 |
| Dosage（L） | 0.04 | 0.04 | 0.08 | 0.08 | 0.08 |
| Fluorine initial concentration（mg/L） | 20 | 20 | 20 | 50 | 120 |
| Fluorine aqueous concentration（mg/L） | 4.7 | 4.9 | 3.9 | 3.9 | 3.8 |
| Fluosilicic acid root initial concentration（mg/L） | 15 | 230 | 28 | 28 | 288 |
| Fluosilicic acid root aqueous concentration（mg/L） | 2.4 | 3.6 | 2.9 | 2.9 | 3.2 |
Fluorine aqueous concentration and fluosilicic acid root aqueous concentration（It is smaller to get over）Defluorination effect can be embodied（It is good）.It can be seen that from upper table, this
The fluorite mineralizer that removes of invention has good depth removal effect to fluorine contained in waste water.
The fluoride waste removes fluorite mineralizer and is precipitated by making the Element Mineralizations such as fluorine in solution, silicon, phosphorus form stable aquation, and
Depth defluorinate is carried out by cladding, absorption, ion exchange, complexing.With low cost, high efficiency, prepare it is simple, nontoxic
Property, sinking speed is fast, body refuse moisture content is low and can realize recycling, stable water outlet and can be down to 4mg/L（In terms of F）The advantages of；System
Standby simple, raw material is easy to get；In addition, the depth defluorinating agent carries out, wastewater treatment method is simple, and water quality is good after processing, environmental risk
It is low.
The embodiment of this patent is explained in detail above, place is not described in detail by the present invention, is people in the art
The known technology of member.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. a kind of preparation formula except fluorite mineralizer, which is characterized in that include the raw material of following parts by weight：Aluminium polychloride
40-100g, potassium chloride 10-150g, aluminium hydroxide 156-390g, sodium hydroxide 100-300g, sodium hypochlorite 5-15g, aluminum sulfate
5-10g, anionic polyacrylamide 15-50g, water 1L, triethanolamine 5-10ml/L, rare earth are pressed with mixture solution
0.001mol/L is added.
2. the preparation formula according to claim 1 except fluorite mineralizer, which is characterized in that include the original of following parts by weight
Material：Aluminium polychloride 70g, potassium chloride 80g, aluminium hydroxide 234g, sodium hydroxide 225g, sodium hypochlorite 10g, aluminum sulfate 8g are cloudy
Cationic polyacrylamide 40g, water 1L, triethanolamine 6ml/L, rare earth are added with mixture solution by 0.001mol/L.
3. a kind of a kind of preparation method except fluorite mineralizer as claimed in claim 1 or 2, which is characterized in that the specific steps are：
（1）Aluminium polychloride, potassium chloride, aluminium hydroxide, sodium hydroxide, sodium hypochlorite, sulfuric acid are weighed according to the weight fraction
Aluminium, anionic polyacrylamide, water, triethanolamine, rare earth are spare；
（2）The potassium chloride, aluminium hydroxide, sodium hydroxide are added to the water, boiled in 95-130 DEG C, stirring is to having dissolved
Entirely, spare mixed solution a is obtained；
（3）The rare earth is added in the mixed solution of concentrated nitric acid and hydrochloric acid, 30min is dissolved by heating in 40-90 DEG C of water-bath
More than, obtain spare mixed solution b
（4）Xiang Shuizhong sequentially adds aluminium polychloride, anionic polyacrylamide, sodium hypochlorite, and a kind of material is often added and is both needed to
5-10min is stirred to being completely dissolved, obtains spare mixed solution c；
（5）To step（2）Step is sequentially added in the spare mixed solution a of gained（3）The spare mixed solution b of gained, step（4）Institute
Spare mixed solution c and triethanolamine, gained mixture are stirred 10min to being mixed thoroughly to get fluorine removal mine
Agent finished product.
4. the preparation formula according to claim 1 or 2 except fluorite mineralizer, which is characterized in that the rare earth be yttrium chloride/
Yttrium nitrate mixture.
5. the preparation method according to claim 3 except fluorite mineralizer, the step（2）By potassium chloride, aluminium hydroxide, hydrogen
Sodium oxide molybdena is added to the water, and boils, and stirring is complete to dissolving, which is characterized in that is at least dissolved under the conditions of need to boiling at 120 DEG C
30min。
6. the preparation method according to claim 3 except fluorite mineralizer, which is characterized in that the step（3）It will be described dilute
Soil is added in the mixed solution of concentrated nitric acid and hydrochloric acid, is dissolved by heating in 55 DEG C of water-baths and is no less than 30min, is configured to 110-
150g/L。
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114477406A (en) * | 2022-03-07 | 2022-05-13 | 山东环瑞生态科技有限公司 | Solid defluorination medicament and application thereof |
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| CN103739048A (en) * | 2013-11-13 | 2014-04-23 | 南京格洛特环境工程股份有限公司 | Defluorination medicine and preparation method thereof |
| CN105420754A (en) * | 2015-11-30 | 2016-03-23 | 济源市华信科技有限公司 | Preparing method and application of zinc electrolyte fluorine removal agent |
| CN107739121A (en) * | 2017-10-13 | 2018-02-27 | 湖北省宏源药业科技股份有限公司 | A kind of further treatment technique of fluorine-containing silicon waste water |
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2018
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103739048A (en) * | 2013-11-13 | 2014-04-23 | 南京格洛特环境工程股份有限公司 | Defluorination medicine and preparation method thereof |
| CN105420754A (en) * | 2015-11-30 | 2016-03-23 | 济源市华信科技有限公司 | Preparing method and application of zinc electrolyte fluorine removal agent |
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| 徐光宪: "《稀土 （第2版）中册》", 31 August 1995, 北京：冶金工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114477406A (en) * | 2022-03-07 | 2022-05-13 | 山东环瑞生态科技有限公司 | Solid defluorination medicament and application thereof |
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Application publication date: 20180821 |