CN104905983A - Method for extracting mineral bath salt from asbestos tailings - Google Patents
Method for extracting mineral bath salt from asbestos tailings Download PDFInfo
- Publication number
- CN104905983A CN104905983A CN201510253455.9A CN201510253455A CN104905983A CN 104905983 A CN104905983 A CN 104905983A CN 201510253455 A CN201510253455 A CN 201510253455A CN 104905983 A CN104905983 A CN 104905983A
- Authority
- CN
- China
- Prior art keywords
- weight
- asbestos tailings
- filtering residue
- bath salt
- filtrate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
The invention discloses a method for extracting mineral bath salt from asbestos tailings. According to the method, after the asbestos tailings are ground and activated, the leaching efficiency of silicon and magnesium can be effectively improved; a large amount of calcium ions are contained in first-time filter liquor, rich magnesium sulfate is contained in second-time filter liquor, and rich silicate is contained in third-time filter liquor; and after the components and monopotassium phosphate and dipotassium glycyrrhizinate are mixed together and dried in the sun, the mixture can be directly used as bath salt, and safety and environment friendliness are achieved.
Description
Technical field
The present invention relates to a kind of method extracting mineral bath salt from asbestos tailings.
Background technology
Asbestos tailings is the mineral residue produced in asbestos deposit selecting and purchasing, and main component is serpentine, also containing a small amount of Talcum, dolomite and calcite.Chemical composition is mainly SiO
2, other materials such as MgO and a small amount of ferrum, aluminum, calcium.China is asbestos big producing country in the world, and asbestos reserves occupy third place in the world, but not high containing asbestos amount in China's asbestos deposit, generally between 1% ~ 4%, namely produces one ton of asbestos and will produce nearly hundred tons of asbestos tailings.According to statistics, China produces more than 340,000 ton, asbestos every year, and produce the tens million of ton of crude asbestos mine tailing per year, the storage capacity of current national asbestos tailings has reached tens tons.These huge mine tailing mountains do not occupy a large amount of land resource, and contaminated environment, constitute a serious threat to human health and safety;
Asbestos tailings is mainly manifested in the harm of leaving mining area and surrounding enviroment are caused of long-term heap:
(1) appropriation of land, destroys ecological environment.Asbestos deposit is exploited for a long time and will be produced the mine tailing mountain of enormous amount, these mine tailing mountains do not occupy limited land resource, and the local ecological environment of heavy damage.On mine tailing mountain, not even a blade of grass grows, if meet Storm Flood, and the geological disaster such as very easily cause mud-rock flow, massif caves in.
(2) atmospheric pollution.Containing the tiny short fiber do not selected in a large number in asbestos tailings, these short fiber balloonings, cause the destruction of air quality.China's " industrial site harmful factor Exposed present worth " specifies, in asbestos mine and its production work environment of asbestos friction material manufacturing enterprise, dust content must not more than 2mg/m
3.But it is substantially up to standard that the practical situation in national each mining area is state-owned big business, medium-sized and small enterprises generally can not be up to standard, in working environment asbestos dust content in every cubic metre of air up to hundreds of milligram, far beyond national standard.It should be noted that these tiny asbestos dusts move with the wind especially, can be floated to outside several kilometers, cause the pollution of mine surrounding enviroment;
Because asbestos produces high risks to environmental and human health impacts, developed country is very strict to asbestos management, the U.S., Britain, Japan and European Union etc. have all formulated strict law, limit the exploitation of asbestos, production and use, and require properly to dispose asbestos tailings and refuse.The maximum disposal technology of current use is security landfill, in recent years along with the development of high-temperature plasma body technique, the developed country such as Italian, French develops asbestos high temperature crystal technology, at high temperature asbestos is melted, no longer present threadiness, and be converted into wear-resisting, corrosion resistant glass ceramics.
Utilize the characteristic containing High Contents of Magnesium and silicon in asbestos tailings, magnesium salt and silicon product salt can be extracted from asbestos tailings, so not only effectively eliminate the pollution problem of mine tailing to environment, and can reasonably apply ore dressing refuse, make enterprise obtain economic benefit by comprehensive utilization, finally reach the unification of social benefit, economic benefit and environmental benefit.
Summary of the invention
The object of the invention is just to provide a kind of method extracting mineral bath salt from asbestos tailings.
The present invention is achieved by the following technical solutions:
From asbestos tailings, extract a method for mineral bath salt, it is characterized in that comprising the following steps:
(1) asbestos tailings is pulverized, cross 200-300 mesh sieve, join in the activator solution of its weight 4-6%, heat-insulation soaking 30-40 minute at 60-70 DEG C, filter, obtain first-time filtrate and a filtering residue;
(2) filtering residue is dried, mix with ammonium phosphate, ammonium sulfate, be placed in Muffle furnace, roasting 40-50 minute at 360-400 DEG C, join in the sulfuric acid solution of roasting material weight 1.8-2 0.1-0.2mol/l doubly after cooling, filter after stirring, obtain secondary filtrate and secondary filtering residue;
(3) secondary filtering residue is joined in the sodium hydroxide solution of its weight 20-30%, insulated and stirred 1-2 hour at 50-60 DEG C, filter, obtain three filtrates;
(4) by above-mentioned first-time filtrate, secondary filtrate, three filtrate mixing, add the potassium dihydrogen phosphate of filtrate weight 1-2%, the glycyrrhizic acid dipotassium of 2-3% after stirring, stir, placement dries in the sun.
From asbestos tailings, extract a method for mineral bath salt, described activator solution is made up of the raw material of following weight parts: calcium ascorbate 3-4, sodium chloride 1-2, deionized water 100-110.
From asbestos tailings, extract a method for mineral bath salt, the consumption of the ammonium phosphate described in step (2) is the 6-10% of filtering residue weight, the consumption of ammonium sulfate is the 1-1.7% of filtering residue weight.
From asbestos tailings, extract a method for mineral bath salt, the sodium hydroxide solution described in described step (3) is 8-10mol/l.
Advantage of the present invention is:
The present invention by asbestos tailings through grinding activation after, effectively can improve the leaching rate of silicon, magnesium, containing a large amount of calcium ions in first-time filtrate, containing abundant magnesium sulfate in secondary filtrate, containing abundant silicate in three filtrates, mix with potassium dihydrogen phosphate, glycyrrhizic acid dipotassium after drying, can directly use as bath salt, safety and environmental protection.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail:
The chemical composition of asbestos tailings of the present invention is:
SiO
2：41.35；
Al
2O
3：2.30；
CaO：1.21；
MgO：30.64；
Fe
2O
3：7.83；
K
2O：0.08；
Na
2O：0.21；
TiO?：0.16；
Remaining is loss on ignition.
Embodiment 1:
From asbestos tailings, extract a method for mineral bath salt, comprise the following steps:
(1) asbestos tailings is pulverized, cross 300 mesh sieves, join in the activator solution of its weight 4%, heat-insulation soaking 30 minutes at 70 DEG C, filter, obtain first-time filtrate and a filtering residue;
(2) filtering residue is dried, mix with ammonium phosphate, ammonium sulfate, be placed in Muffle furnace, roasting 50 minutes at 400 DEG C, join in the sulfuric acid solution of the 0.2mol/l of roasting material weight 1.8 times after cooling, filter after stirring, obtain secondary filtrate and secondary filtering residue;
(3) secondary filtering residue is joined in the sodium hydroxide solution of its weight 30%, insulated and stirred 1 hour at 60 DEG C, filter, obtain three filtrates;
(4) by above-mentioned first-time filtrate, secondary filtrate, three filtrate mixing, add the potassium dihydrogen phosphate of filtrate weight 1%, the glycyrrhizic acid dipotassium of 2% after stirring, stir, placement dries in the sun.
From asbestos tailings, extract a method for mineral bath salt, described activator solution is made up of the raw material of following weight parts: calcium ascorbate 3, sodium chloride 1, deionized water 110.
From asbestos tailings, extract a method for mineral bath salt, the consumption of the ammonium phosphate described in step (2) is 10% of filtering residue weight, the consumption of ammonium sulfate is 1.7% of filtering residue weight.
From asbestos tailings, extract a method for mineral bath salt, the sodium hydroxide solution described in described step (3) is 10mol/l.
Embodiment 2
From asbestos tailings, extract a method for mineral bath salt, it is characterized in that comprising the following steps:
(1) asbestos tailings is pulverized, cross 200 mesh sieves, join in the activator solution of its weight 5%, heat-insulation soaking 30 minutes at 63 DEG C, filter, obtain first-time filtrate and a filtering residue;
(2) filtering residue is dried, mix with ammonium phosphate, ammonium sulfate, be placed in Muffle furnace, roasting 44 minutes at 380 DEG C, join in the sulfuric acid solution of the 0.16mol/l of roasting material weight 1.8 times after cooling, filter after stirring, obtain secondary filtrate and secondary filtering residue;
(3) secondary filtering residue is joined in the sodium hydroxide solution of its weight 30%, insulated and stirred 1 hour at 60 DEG C, filter, obtain three filtrates;
(4) by above-mentioned first-time filtrate, secondary filtrate, three filtrate mixing, add the potassium dihydrogen phosphate of filtrate weight 1%, the glycyrrhizic acid dipotassium of 2% after stirring, stir, placement dries in the sun.
From asbestos tailings, extract a method for mineral bath salt, described activator solution is made up of the raw material of following weight parts: calcium ascorbate 3, sodium chloride 1, deionized water 110.
From asbestos tailings, extract a method for mineral bath salt, the consumption of the ammonium phosphate described in step (2) is 10% of filtering residue weight, the consumption of ammonium sulfate is 1.6% of filtering residue weight.
From asbestos tailings, extract a method for mineral bath salt, the sodium hydroxide solution described in described step (3) is 9mol/l.
Claims (4)
1. from asbestos tailings, extract a method for mineral bath salt, it is characterized in that comprising the following steps:
(1) asbestos tailings is pulverized, cross 200-300 mesh sieve, join in the activator solution of its weight 4-6%, heat-insulation soaking 30-40 minute at 60-70 DEG C, filter, obtain first-time filtrate and a filtering residue;
(2) filtering residue is dried, mix with ammonium phosphate, ammonium sulfate, be placed in Muffle furnace, roasting 40-50 minute at 360-400 DEG C, join in the sulfuric acid solution of roasting material weight 1.8-2 0.1-0.2mol/l doubly after cooling, filter after stirring, obtain secondary filtrate and secondary filtering residue;
(3) secondary filtering residue is joined in the sodium hydroxide solution of its weight 20-30%, insulated and stirred 1-2 hour at 50-60 DEG C, filter, obtain three filtrates;
(4) by above-mentioned first-time filtrate, secondary filtrate, three filtrate mixing, add the potassium dihydrogen phosphate of filtrate weight 1-2%, the glycyrrhizic acid dipotassium of 2-3% after stirring, stir, placement dries in the sun.
2. a kind of method extracting mineral bath salt from asbestos tailings according to claim 1, is characterized in that what described activator solution was made up of the raw material of following weight parts: calcium ascorbate 3-4, sodium chloride 1-2, deionized water 100-110.
3. a kind of method extracting mineral bath salt from asbestos tailings according to claim 1, is characterized in that the 1-1.7% that the consumption of the ammonium phosphate described in step (2) is the 6-10% of filtering residue weight, the consumption of ammonium sulfate is filtering residue weight.
4. a kind of method extracting mineral bath salt from asbestos tailings according to claim 1, is characterized in that the sodium hydroxide solution described in described step (3) is 8-10mol/l.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510253455.9A CN104905983B (en) | 2015-05-19 | 2015-05-19 | A kind of method that mineral bath salt is extracted from asbestos tailings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510253455.9A CN104905983B (en) | 2015-05-19 | 2015-05-19 | A kind of method that mineral bath salt is extracted from asbestos tailings |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104905983A true CN104905983A (en) | 2015-09-16 |
| CN104905983B CN104905983B (en) | 2017-09-29 |
Family
ID=54075719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510253455.9A Active CN104905983B (en) | 2015-05-19 | 2015-05-19 | A kind of method that mineral bath salt is extracted from asbestos tailings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104905983B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105567956A (en) * | 2015-11-30 | 2016-05-11 | 河北工程大学 | Method for extracting cobalt from tailings |
| CN114873615A (en) * | 2022-05-24 | 2022-08-09 | 西南科技大学 | Method for preparing magnesium sulfate by removing iron from asbestos tailings |
| CN115196657A (en) * | 2022-08-24 | 2022-10-18 | 西南科技大学 | Magnesium sulfate solution refined from asbestos tailings mixed with auxiliary agent and preparation method thereof |
| CN115259186A (en) * | 2022-08-24 | 2022-11-01 | 西南科技大学 | Magnesium sulfate solution refined from asbestos tailings and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101250622A (en) * | 2008-04-07 | 2008-08-27 | 戴元宁 | Complete wet way comprehensive processing method for serpentine mine |
| CN101456565A (en) * | 2009-01-09 | 2009-06-17 | 昆明理工大学 | Method for preparing magnesium hydrate nano powder by active acid leaching nickel-containing serpentine |
| CN104152686A (en) * | 2014-07-18 | 2014-11-19 | 南阳东方应用化工研究所 | Decomposition method for asbestos tailings |
-
2015
- 2015-05-19 CN CN201510253455.9A patent/CN104905983B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101250622A (en) * | 2008-04-07 | 2008-08-27 | 戴元宁 | Complete wet way comprehensive processing method for serpentine mine |
| CN101456565A (en) * | 2009-01-09 | 2009-06-17 | 昆明理工大学 | Method for preparing magnesium hydrate nano powder by active acid leaching nickel-containing serpentine |
| CN104152686A (en) * | 2014-07-18 | 2014-11-19 | 南阳东方应用化工研究所 | Decomposition method for asbestos tailings |
Non-Patent Citations (3)
| Title |
|---|
| 唐冬雁等: "《化妆品配方设计与制备工艺》", 30 June 2003, 化学工业出版社 * |
| 姜延鹏等: "温石棉尾矿活化产物酸浸渣碱浸取率实验研究", 《非金属矿》 * |
| 宋丽英等: "蛇纹岩开发与综合利用", 《无机盐工业》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105567956A (en) * | 2015-11-30 | 2016-05-11 | 河北工程大学 | Method for extracting cobalt from tailings |
| CN114873615A (en) * | 2022-05-24 | 2022-08-09 | 西南科技大学 | Method for preparing magnesium sulfate by removing iron from asbestos tailings |
| CN114873615B (en) * | 2022-05-24 | 2023-10-03 | 西南科技大学 | Method for preparing magnesium sulfate by deironing asbestos tailings |
| CN115196657A (en) * | 2022-08-24 | 2022-10-18 | 西南科技大学 | Magnesium sulfate solution refined from asbestos tailings mixed with auxiliary agent and preparation method thereof |
| CN115259186A (en) * | 2022-08-24 | 2022-11-01 | 西南科技大学 | Magnesium sulfate solution refined from asbestos tailings and preparation method thereof |
| CN115196657B (en) * | 2022-08-24 | 2023-10-10 | 西南科技大学 | Magnesium sulfate solution refined by asbestos tailing mixed auxiliary agent and preparation method thereof |
| CN115259186B (en) * | 2022-08-24 | 2023-12-26 | 西南科技大学 | Magnesium sulfate solution refined from asbestos tailings and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104905983B (en) | 2017-09-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102978659B (en) | A kind of Deep method of comprehensive utilization of electrolytic cell overhaul slag | |
| CN101942562A (en) | Harmless treatment technology of main metal tailings | |
| CN105565691A (en) | Lead-zinc smelting slag based geopolymer gelling material and preparation method thereof | |
| CN104905983A (en) | Method for extracting mineral bath salt from asbestos tailings | |
| CN101565768A (en) | Method for producing ferrous powder and co-production titanium slag by rapidly reducing titanium placer pellets by rotary hearth furnace | |
| CN108264233A (en) | The method that electrolytic manganese residues comprehensively utilize and prepare devitrified glass | |
| CN105778886A (en) | Low-density high-strength ceramsite proppant and preparation process thereof | |
| Bing et al. | Comprehensive utilization of iron tailings in China | |
| CN104451161A (en) | Method for low-temperature smelting of regenerated lead | |
| CN106145686B (en) | A kind of complicated utilization Pb-Zn tailings, devitrified glass of electrolytic manganese waste residue and preparation method thereof | |
| CN105754581A (en) | Method for preparing petroleum propping agent from aluminum ash and aluminum residues | |
| CN103058739B (en) | Method for producing alkaline fertilizer by phosphate rock tailings or low-grade phosphate rock kiln method | |
| CN103304141A (en) | Glass ceramic prepared by compounding steel slag and red mud and preparation method thereof | |
| CN103086778B (en) | Method for producing alkaline fertilizer from insoluble potassium-containing rock by kiln process | |
| CN115521772A (en) | Fracturing propping agent and method for preparing fracturing propping agent by using drilling mud and rock debris of oil and gas field | |
| CN101792184A (en) | Method for comprehensively utilizing asbestos tailings | |
| CN104529518A (en) | Lead-zinc tailing-red mud-flyash-based foamed ceramic and preparation method thereof | |
| CN104891855A (en) | A method of extracting rare earth sulfate from coal gangue and applying the rare earth sulfate as a concrete additive | |
| CN106045564B (en) | A method of preparing thermal insulation material using gangue | |
| CN108911660B (en) | Consolidation material for electrolytic manganese slag stabilization treatment and application thereof | |
| CN103951261B (en) | A kind of with golden copper tailing foam glass material that is main raw material and preparation method thereof | |
| CN104891951B (en) | A method of extracting a silicon-magnesium-aluminum composite insulating material from asbestos tailings | |
| CN103290240A (en) | Method for extracting vanadium by utilizing sensible heat and low energy consumption of vanadium-containing stone coal power generation ash | |
| CN111039299B (en) | Method for efficiently recycling lead-zinc tailings | |
| CN102992298A (en) | Method for recycling overhauling slag waste cathode carbon blocks of electrolytic bath |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |