CN109279630A - The device and method of light magnesium carbonate is refined in a kind of magnesium carbonate product from carbon sequestration - Google Patents
The device and method of light magnesium carbonate is refined in a kind of magnesium carbonate product from carbon sequestration Download PDFInfo
- Publication number
- CN109279630A CN109279630A CN201811438972.3A CN201811438972A CN109279630A CN 109279630 A CN109279630 A CN 109279630A CN 201811438972 A CN201811438972 A CN 201811438972A CN 109279630 A CN109279630 A CN 109279630A
- Authority
- CN
- China
- Prior art keywords
- magnesium carbonate
- refining kettle
- outlet
- centrifuge
- drying machine
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F5/00—Compounds of magnesium
- C01F5/24—Magnesium carbonates
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/80—Compositional purity
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
The present invention relates to the devices that light magnesium carbonate is refined in a kind of magnesium carbonate product from carbon sequestration, including magnesium carbonate refining kettle, nitrogen gas tank, centrifuge, filtrate collecting tank, drying machine, three-level absorption tower and cyclone dust collectors, nitrogen gas tank outlet is connected to the entrance of magnesium carbonate refining kettle, the outlet at bottom of magnesium carbonate refining kettle is connect with centrifuge, the liquid outlet of centrifuge is connected to filtrate collecting tank, and the outlet of filtrate collecting tank is connected to the entrance of magnesium carbonate refining kettle；The solid outlet of centrifuge is connect by delivery pipe chain with drying machine, and the gas vent of drying machine is connected to the entrance of cyclone dust collectors；The top exit of magnesium carbonate refining kettle is connected to three-level absorption tower.The magnesium carbonate product that the present invention is generated using carbon sequestration is raw material, light magnesium carbonate is gone out using the device of refining, turn waste into wealth, it is back to refining kettle in the filtrate that subtractive process generates, iterative cycles utilize, and yield greatly improved, reaction temperature is low, energy conservation and environmental protection, operation is simple, and industrialization degree is high.
Description
Technical field
The present invention relates to the device and methods that light magnesium carbonate is refined in a kind of magnesium carbonate product from carbon sequestration, belong to
Chemical and field of environment protection.
Background technique
Since the industrial revolution, atmospheric carbon dioxide concentration is substantially improved in combustion of fossil fuel, brings a series of rings
Border problem, more and more evidences show that the greenhouse gases excessive emissions based on carbon dioxide result in Global climate change.
Global climate change brings immeasurable disaster to natural ecosystems and human society life: extreme weather, glacier disappear
Melt, coral reef is dead, sea level rise etc..Saving carbon emission reduction becomes the subject under discussion of countries in the world extensive concern, carbon dioxide sequestration
The implementation of technology is extremely urgent.
Currently, carbon dioxide sequestration technology mainly includes three kinds: geological storage, ocean are sealed up for safekeeping, mineral are sealed up for safekeeping.Geological storage
Refer to and is injected into the carbon dioxide of trapping in geological structure in the form of overcritical；Ocean, which is sealed up for safekeeping, to be referred to and injects carbon dioxide into
In ocean, Absorption by Sea Water is allowed；The mineral of broad sense, which are sealed up for safekeeping, to be referred to carbon dioxide is fixed up in the form of resistant mineral, that is, is formed
Stable carbonate mineral.There is the risk of leakage in geological storage, need artificial long-term monitoring, ocean, which is sealed up for safekeeping, will lead to seawater
Acidity is presented, destroys the marine eco-environment, therefore it is most stable, most effective carbon sequestration mode that mineral, which are sealed up for safekeeping,.Magnesium carbonic acid
Salinization is a kind of effective approach that carbon dioxide mineral are sealed up for safekeeping, carbon dioxide and rich magnesium mineral during magnesium carbonate
The process of reaction can generate a kind of magnesium carbonate product based on nesquehonite, magnesium carbonate ammonium hydrate.
Light magnesium carbonate is a kind of important Inorganic Chemicals, for producing other chemistry examinations in Fine Chemical
Agent；In medical industry, it is used as medicine intermediate, antacid；It is used as food additives, magnesium elements compensation in food service industry；
It can be used as the filler and reinforcing agent in rubber product；Thermal insulation material resistant to high temperature can be insulated；Manufacture high glass product；It wards off
Porcelain ceramics play surface-brightening；Coatings industry is used as the filler material of accessory pigment, paint, ink, can increase whiteness and covering
Power, it can also be used to make daily cosmetics etc., also be widely used in boiler manfacturing, shipbuilding industry.The tradition of light magnesium carbonate
Refining methd be using dolomite as based on the white clouds rock dust of raw material, there are also the other methods such as brine method and boron mud carbonizatin method, this
A little methods undoubtedly require to consume existing environmental resource, and need to react (200 DEG C or more) at a higher temperature.
Summary of the invention
It is an object of the invention to solve the deficiencies in the prior art, essence in a kind of magnesium carbonate product from carbon sequestration is provided
The device and method of light magnesium carbonate processed combines carbon dioxide discharge-reduction, with purification with the production of carbonic acid magnesium products with carbon
The magnesium carbonate product for sealing generation up for safekeeping is raw material, refines out the product of light magnesium carbonate, to provide a kind of and carbon sequestration environment
The method for the purification light magnesium carbonate that protection combines.
Technical solution
The device of light magnesium carbonate, including magnesium carbonate refining kettle, nitrogen are refined in a kind of magnesium carbonate product from carbon sequestration
Gas tank, centrifuge, filtrate collecting tank, drying machine, three-level absorption tower and cyclone dust collectors, nitrogen gas tank outlet and magnesium carbonate refining kettle
Entrance connection, the outlet at bottom of magnesium carbonate refining kettle connect with centrifuge, liquid outlet and filtrate the collecting tank company of centrifuge
Logical, the outlet of filtrate collecting tank is connected to the entrance of magnesium carbonate refining kettle；The solid outlet of centrifuge is by delivery pipe chain and does
Dry machine connection, the gas vent of drying machine are connected to the entrance of cyclone dust collectors；The top exit and three-level of magnesium carbonate refining kettle
Absorption tower connection.
The method for refining light magnesium carbonate from the magnesium carbonate product of carbon sequestration using above-mentioned apparatus, including walk as follows
It is rapid:
(1) the magnesium carbonate product of carbon sequestration is sent by delivery pipe chain to magnesium carbonate refining kettle, to magnesium carbonate refining kettle
Middle addition water, and open nitrogen gas tank and introduce nitrogen, it heats and stirs and refined, obtain slurries and tail gas；
(2) tail gas for generating step (1) is sent into three-level absorption tower and carries out purified treatment, and treated, and tail gas is directly arranged
It puts；The slurries that step (1) obtains are sent into centrifuge to be centrifuged, obtain filtrate and solid；
(3) filtrate that step (2) obtains is collected into filtrate collecting tank, is then delivered in magnesium carbonate refining kettle and continues to join
With react；The solid that step (2) obtains is sent into drying machine to be dried, light magnesium carbonate is obtained, is generated in drying process
Gas discharges after cyclone dust collectors are handled.
In step (1), the source of the magnesium carbonate product of the carbon sequestration is the magnesium carbon that carbon dioxide mineral seal generation up for safekeeping
Hydrochlorate product, main component are (NH4)2Mg(CO3)2·4H2O、MgCO3·3H2O、Mg2CO3(OH)2·3H2O、Mg2(OH)
ClCO3·3H2O。
In step (1), the magnesium carbonate product of the carbon sequestration and the mass ratio of water are 1:(3-20).
In step (1), extraction temperature is 120-200 DEG C, pressure 0.1-0.5MPa, time 20-80min.
In step (2), the centrifugal rotational speed is 600-1200r/min, time 5-30min.
In step (3), the magnesium carbonate drying machine is paddle-dryer, and the temperature of drying process is 110-180 DEG C, when
Between be 0.5-4h.
Beneficial effects of the present invention:
(1) purification of carbon sequestration and light magnesium carbonate is effectively combined by the present invention, takes full advantage of carbon sequestration production
Raw magnesium carbonate product, reaches resource recycling, the purpose to turn waste into wealth.
(2) present invention is back to refining kettle in the filtrate that subtractive process generates and is reacted, and iterative cycles utilize, and substantially mentions
High yield.
(3) pipeline of package unit of the present invention all uses closed, can effectively prevent environmental pollution.
(4) reaction temperature of the present invention is relatively low, and other impurities are not added, and operation is simple, and industrialization degree is high.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the device of purification light magnesium carbonate of the invention；
In figure, 1- nitrogen gas tank；2- magnesium carbonate refining kettle；3- centrifuge；4- filtrate collecting tank；5- drying machine, 6- three-level are inhaled
Receive tower；7- cyclone dust collectors.
Specific embodiment
Combined with specific embodiments below, the contents of the present invention are further illustrated.
In following embodiments, the source of magnesium carbonate product used is that rich magnesium mineral sequestration of carbon dioxide obtains in the process
Magnesium carbonate product, ingredient be (NH4)2Mg(CO3)2·4H2O、MgCO3·3H2O、Mg2CO3(OH)2·3H2O、Mg2(OH)
ClCO3·3H2O, wherein (NH4)2Mg(CO3)2·4H2O content is greater than 80%.
Embodiment 1
Such as Fig. 1, the device of light magnesium carbonate, including magnesium carbonate purification are refined in a kind of magnesium carbonate product from carbon sequestration
Kettle 2, nitrogen gas tank 1, centrifuge 3, filtrate collecting tank 4, drying machine 5, three-level absorption tower 6 and cyclone dust collectors 7, nitrogen gas tank 1 export
It is connected to the entrance of magnesium carbonate refining kettle 2, the outlet at bottom of magnesium carbonate refining kettle 2 is connect with centrifuge 3, the liquid of centrifuge 3
Outlet is connected to filtrate collecting tank 4, and the outlet of filtrate collecting tank 4 is connected to the entrance of magnesium carbonate refining kettle 2；Centrifuge 3 is consolidated
Body outlet is connect by delivery pipe chain with drying machine 5, and the gas vent of drying machine 5 is connected to the entrance of cyclone dust collectors 7；Carbonic acid
The top exit of magnesium refining kettle 2 is connected to three-level absorption tower 6.
Embodiment 2
Light magnesium carbonate is refined from the magnesium carbonate product of carbon sequestration using the device of embodiment 1, the specific steps are as follows:
(1) the magnesium carbonate product of 120kg carbon sequestration is sent by delivery pipe chain to magnesium carbonate refining kettle, with 10m3/ h's
Water (mass ratio of the magnesium carbonate product of carbon sequestration and water is 1:10) is added into magnesium carbonate refining kettle for flow, and opens nitrogen
Tank introduces nitrogen (flow 20m3/ h), it heats and stirs and refined that (extraction temperature is 150 DEG C, pressure 0.1Pa, the time
For 80min), slurries and tail gas are obtained；
(2) tail gas for generating step (1) is sent into three-level absorption tower and carries out purified treatment, and treated, and tail gas is directly arranged
It puts；The slurries that step (1) obtains are sent into centrifuge and are centrifuged (revolving speed 1000r/min, time 10min), are filtered
Liquid and 195.36kg solid；
(3) filtrate that step (2) obtains is collected into filtrate collecting tank, is then delivered in magnesium carbonate refining kettle and continues to join
With react；The 195.36kg solid that step (2) is obtained is sent into drying machine dry 1h at 120 DEG C, obtains light magnesium carbonate
62.16kg, purity 98%；The gas generated in drying process discharges after cyclone dust collectors are handled.
Embodiment 3
Light magnesium carbonate is refined from the magnesium carbonate product of carbon sequestration using the device of embodiment 1, the specific steps are as follows:
(1) the magnesium carbonate product of 80kg carbon sequestration is sent by delivery pipe chain to magnesium carbonate refining kettle, with 10m3/ h's
Water (mass ratio of the magnesium carbonate product of carbon sequestration and water is 1:15) is added into magnesium carbonate refining kettle for flow, and opens nitrogen
Tank introduces nitrogen (flow 20m3/ h), it heats and stirs and refined that (extraction temperature is 100 DEG C, pressure 0.2Pa, the time
For 60min), slurries and tail gas are obtained；
(2) tail gas for generating step (1) is sent into three-level absorption tower and carries out purified treatment, and treated, and tail gas is directly arranged
It puts；The slurries that step (1) obtains are sent into centrifuge and are centrifuged (revolving speed 800r/min, time 20min), obtain filtrate
With 105.6kg solid；
(3) filtrate that step (2) obtains is collected into filtrate collecting tank, is then delivered in magnesium carbonate refining kettle and continues to join
With react；The 105.6kg solid that step (2) is obtained is sent into drying machine dry 1h at 120 DEG C, obtains light magnesium carbonate
40.1kg, purity 99%；The gas generated in drying process discharges after cyclone dust collectors are handled.
Embodiment 4
Light magnesium carbonate is refined from the magnesium carbonate product of carbon sequestration using the device of embodiment 1, the specific steps are as follows:
(1) the magnesium carbonate product of 30kg carbon sequestration is sent by delivery pipe chain to magnesium carbonate refining kettle, with 10m3/ h's
Water (mass ratio of the magnesium carbonate product of carbon sequestration and water is 1:3) is added into magnesium carbonate refining kettle for flow, and opens nitrogen
Tank introduces nitrogen (flow 20m3/ h), it heats and stirs and refined that (extraction temperature is 200 DEG C, pressure 0.2Pa, the time
For 30min), slurries and tail gas are obtained；
(2) tail gas for generating step (1) is sent into three-level absorption tower and carries out purified treatment, and treated, and tail gas is directly arranged
It puts；The slurries that step (1) obtains are sent into centrifuge and are centrifuged (revolving speed 1000r/min, time 10min), are filtered
Liquid and 40.02kg solid；
(3) filtrate that step (2) obtains is collected into filtrate collecting tank, is then delivered in magnesium carbonate refining kettle and continues to join
With react；The 40.02kg solid that step (2) is obtained is sent into drying machine dry 1h at 150 DEG C, obtains light magnesium carbonate
15.3kg, purity 99%；The gas generated in drying process discharges after cyclone dust collectors are handled.
Claims (6)
1. refining the device of light magnesium carbonate in a kind of magnesium carbonate product from carbon sequestration, which is characterized in that including magnesium carbonate
Refining kettle, nitrogen gas tank, centrifuge, filtrate collecting tank, drying machine, three-level absorption tower and cyclone dust collectors, nitrogen gas tank outlet and carbon
The entrance of sour magnesium refining kettle is connected to, and the outlet at bottom of magnesium carbonate refining kettle is connect with centrifuge, the liquid outlet of centrifuge and filter
The connection of liquid collecting tank, the outlet of filtrate collecting tank is connected to the entrance of magnesium carbonate refining kettle；The solid outlet of centrifuge passes through defeated
Pipe chain is sent to connect with drying machine, the gas vent of drying machine is connected to the entrance of cyclone dust collectors；The top of magnesium carbonate refining kettle
Outlet is connected to three-level absorption tower.
2. refining the method for light magnesium carbonate in a kind of magnesium carbonate product from carbon sequestration, which is characterized in that including walking as follows
It is rapid:
(1) claim 1 described device is used, the magnesium carbonate product of carbon sequestration is sent by delivery pipe chain to magnesium carbonate and is refined
Water is added into magnesium carbonate refining kettle for kettle, and opens nitrogen gas tank and introduce nitrogen, heats and stirs and is refined, obtain slurries and
Tail gas；
(2) tail gas for generating step (1) is sent into three-level absorption tower and carries out purified treatment, tail gas direct emission that treated；It will
The slurries that step (1) obtains are sent into centrifuge and are centrifuged, and filtrate and solid are obtained；
(3) filtrate that step (2) obtains is collected into filtrate collecting tank, is then delivered in magnesium carbonate refining kettle and continues to participate in instead
It answers；The solid that step (2) obtains is sent into drying machine to be dried, obtains light magnesium carbonate, the gas generated in drying process
It is discharged after cyclone dust collectors are handled.
3. method according to claim 2, which is characterized in that in step (1), the magnesium carbonate product and water of the carbon sequestration
Mass ratio be 1:(3-20).
4. method according to claim 2, which is characterized in that in step (1), extraction temperature is 120-200 DEG C, and pressure is
0.1-0.5MPa, time 20-80min.
5. method according to claim 2, which is characterized in that in step (2), the centrifugal rotational speed is 600-1200r/min,
Time is 5-30min.
6. such as the described in any item methods of claim 2 to 5, which is characterized in that in step (3), the magnesium carbonate drying machine is
Paddle-dryer, the temperature of drying process are 110-180 DEG C, time 0.5-4h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811438972.3A CN109279630A (en) | 2018-11-28 | 2018-11-28 | The device and method of light magnesium carbonate is refined in a kind of magnesium carbonate product from carbon sequestration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811438972.3A CN109279630A (en) | 2018-11-28 | 2018-11-28 | The device and method of light magnesium carbonate is refined in a kind of magnesium carbonate product from carbon sequestration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109279630A true CN109279630A (en) | 2019-01-29 |
Family
ID=65172970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811438972.3A Pending CN109279630A (en) | 2018-11-28 | 2018-11-28 | The device and method of light magnesium carbonate is refined in a kind of magnesium carbonate product from carbon sequestration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109279630A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6340722A (en) * | 1986-08-07 | 1988-02-22 | Mitsubishi Heavy Ind Ltd | Method for removing impurity in production of magnesium carbonate |
| CN1087063A (en) * | 1993-06-23 | 1994-05-25 | 河北奥瑞金镁碱化工研究所 | Process for combination producing of magnesium base |
| CN102424409A (en) * | 2011-09-02 | 2012-04-25 | 北京化工大学 | Method for preparing light magnesium carbonate |
| CN105948076A (en) * | 2016-05-03 | 2016-09-21 | 南京大学 | Method for combined production of lightweight magnesium carbonate and ammonium chloride based on carbon dioxide sequestration |
| CN106241842A (en) * | 2016-08-30 | 2016-12-21 | 闻喜县远华冶金材料有限公司 | The production method of light magnesium carbonate |
| CN106276990A (en) * | 2015-06-09 | 2017-01-04 | 徐强 | Heavy anhydrous magnesium carbonate, the preparation method of magnesium oxide |
-
2018
- 2018-11-28 CN CN201811438972.3A patent/CN109279630A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6340722A (en) * | 1986-08-07 | 1988-02-22 | Mitsubishi Heavy Ind Ltd | Method for removing impurity in production of magnesium carbonate |
| CN1087063A (en) * | 1993-06-23 | 1994-05-25 | 河北奥瑞金镁碱化工研究所 | Process for combination producing of magnesium base |
| CN102424409A (en) * | 2011-09-02 | 2012-04-25 | 北京化工大学 | Method for preparing light magnesium carbonate |
| CN106276990A (en) * | 2015-06-09 | 2017-01-04 | 徐强 | Heavy anhydrous magnesium carbonate, the preparation method of magnesium oxide |
| CN105948076A (en) * | 2016-05-03 | 2016-09-21 | 南京大学 | Method for combined production of lightweight magnesium carbonate and ammonium chloride based on carbon dioxide sequestration |
| CN106241842A (en) * | 2016-08-30 | 2016-12-21 | 闻喜县远华冶金材料有限公司 | The production method of light magnesium carbonate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102773006A (en) | Device and process for cyclic capture of carbon dioxide by taking CaO as carrier | |
| CN109250884B (en) | Biogas slurry efficient deamination process combining digested sludge with thermal hydrolysis | |
| CN110950338B (en) | Method for capturing carbon dioxide in converter flue gas and coproducing NPCC (neutral carbon dioxide) by closed cycle of converter steel slag and steelmaking wastewater | |
| CN102278177B (en) | Device and method for efficiently utilizing tail gas of combustion engine | |
| CN103990370A (en) | Method for reducing emission of thermal power generation smoke CO2 and subsidiarily producing superfine nanometer CaCO3 from thermal power generation smoke CO2 | |
| CN107349759A (en) | A kind of ship tail gas combined desulfurization carbonization treatment device | |
| CN103055682B (en) | Solid fuel power station discarded object comprehensive processing technique and equipment thereof | |
| CN113443628A (en) | Carbon-neutralized solid waste leaching-CO2Mineralization circulation system and process | |
| CN112811454A (en) | System and method for comprehensively utilizing sulfur-containing flue gas and fly ash of boiler | |
| CN103446867B (en) | Method for preparing calcium carbonate and recycling CO by collecting and mineralizing CO2 in aluminum electrolysis flue gas | |
| CN103253633A (en) | Method for recovering hydrogen from tail gas of chlorate electrolysis | |
| CN109279630A (en) | The device and method of light magnesium carbonate is refined in a kind of magnesium carbonate product from carbon sequestration | |
| CN206902139U (en) | A kind of biogas Preparation equipment | |
| CN204607785U (en) | Novel energy-conserving effluent treatment plant | |
| CN112680256B (en) | Device and method for wet dechlorination and desulfurization of blast furnace gas | |
| CN108148644A (en) | A kind of gas mixed gas purifying plant and its application method based on chemical reaction | |
| CN105567362B (en) | Gas hydration separation bubbling intensifying device and gas hydration separation purification intensifying device and gas purification intensifying method based on the device | |
| CN202803106U (en) | Device for circularly catching carbon dioxide by taking CaO as carrier | |
| CN206624690U (en) | A kind of reverse flow ozone diffusible oxydation device | |
| CN206911091U (en) | Composite cruising ballast water and marine exhaust processing system | |
| CN205953536U (en) | Active carbon preparation system | |
| CN203002205U (en) | Waste comprehensive treatment system of solid fuel power station | |
| CN210964557U (en) | Device for treating carbon dioxide in industrial waste gas based on coal mine goaf | |
| CN105132281A (en) | Improved methane tank | |
| CN1597506A (en) | Raw material recovery method from active carbon produced by chemical method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190129 |
|
| RJ01 | Rejection of invention patent application after publication |