CN208594031U - A kind of device for leaching solid magnesium mine and preparing magnesium hydroxide - Google Patents
A kind of device for leaching solid magnesium mine and preparing magnesium hydroxide Download PDFInfo
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- CN208594031U CN208594031U CN201821184267.0U CN201821184267U CN208594031U CN 208594031 U CN208594031 U CN 208594031U CN 201821184267 U CN201821184267 U CN 201821184267U CN 208594031 U CN208594031 U CN 208594031U
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- reaction kettle
- water stream
- injection pump
- stream injection
- gas
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- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
Preparing the device of magnesium hydroxide the utility model discloses a kind of leaching solid magnesium mine, it is characterized by comprising the first reaction kettles, second reaction kettle, first centrifugal pump, water stream injection pump, first reaction kettle is connect at water stream injection pump gas access by gas-guide tube, second reaction kettle, first centrifugal pump, water stream injection pump is in turn connected to form closed circuit by catheter, water stream injection pump is right above the second reaction kettle, gas liquid outlet end connects the second magnesium reaction kettle, first centrifugal pump fluid inlet end connects the second reaction kettle, outlet end connects water stream injection pump fluid inlet end.
Description
Technical field
The utility model belongs to field of inorganic chemical engineering, and in particular to the reaction unit of solid magnesium mine preparing magnesium hydroxide.
Background technique
Magnesium hydroxide is a kind of nontoxic free from corrosion middle highly basic, as a kind of green material in fire retardant, high-grade pottery
Porcelain, electronic product, fine chemical product, fume desulfurizing agent, wastewater treatment, field of medicaments have extensive use, and high-purity hydrogen aoxidizes
Magnesium is more competitive since homogeneity is good, the high suitable production high value added product of whiteness.
It is reacted using solid magnesium mine such as magnesite, boron mud, asbestos tailings as raw material with ammonium salt, obtains ammonium hydroxide and soluble magnesium salt
Solution, solution filtering and impurity removing, then react with ammonia water and can obtain the very high magnesium hydroxide of purity, and ammonium salt is then recycled, and has
At low cost, by-product is few, the high advantage of product purity, can improve magnesite use value or processing boron mud, asbestos tailings work
Industry solid waste, remarkable benefit.Its essence is valuable constituent magnesia to react with ammonium salt, and currently used method is usually normal pressure height
Warm ammonia still process, temperature have following defects that under 1) usual conditions that magnesia reacts difficult with ammonium chloride, and magnesium is molten at 100 DEG C or more
Output is few, and yield is very low, even if being heated to the boiling point of water, reaction is still relatively slow；2) a large amount of water evaporation energy consumption is high, and water evaporation is led
Ammonium salt crystallization is caused, great changes will take place for solution solid-to-liquid ratio, and reaction is difficult to continue progress；3) huge ammonia still process is used during to set
Standby, not only investment is big, but also volatile pollution production environment and ecological environment.
Utility model content
The utility model is directed to the above technological deficiency and not perfect place, provides a kind of leaching solid magnesium mine and prepares hydrogen-oxygen
The device and application method for changing magnesium both can guarantee that ammonia sealed, and prevented volatilization pollution air, and energy high efficiente callback ammonia, avoided ammonia nitrogen
Discharge of wastewater.
The technology employed by the present utility model is
A kind of device for leaching solid magnesium mine and preparing magnesium hydroxide: including the first reaction kettle, the second reaction kettle, the first centrifugation
Pump, water stream injection pump, first reaction kettle are connect at water stream injection pump gas access by gas-guide tube, the second reaction kettle, first
Centrifugal pump, water stream injection pump are in turn connected to form closed circuit by catheter, and water stream injection pump is right above the second reaction kettle, gas-liquid
Outlet end connects the second reaction kettle, and the first centrifugal pump fluid inlet end connects the second reaction kettle, and outlet end connects water injection pump liquid
Body arrival end.
In the above scheme, the first reaction kettle is pacified on gas-guide tube at water stream injection pump gas access close to the first reaction kettle end
Equipped with condenser pipe, including cylinder, gas access to be condensed, condensed gas outlet, condensate liquid bypass outlet, gas access to be condensed
The first reaction kettle, condensed gas outlet connection water stream injection pump gas access, condensate liquid reflux are all connected with condensate liquid bypass outlet
Outlet is connected with valve, and condenser pipe can be greatly reduced water evaporation in the first reaction kettle and enter second instead by returned cold condensate
Answer in kettle and occur crystallizing and hinder reaction, at the same can also slag after washing reaction, reduce the entrainment loss of soluble-salt, maintain
React sustainable progress and environmental protection.
In the above scheme, which further includes the second centrifugal pump, cartridge filter, the first reaction kettle, the second centrifugal pump, filtering
Cylinder is sequentially connected by catheter, and cartridge filter connects the gas-guide tube between condenser pipe and the second reaction kettle, energy by tee tube
Guarantee apparatus integration, continuous production, simultaneously because sealing is avoided that the volatilization loss of ammonia.
In the above scheme, the one kind of magnesium ion solution from magnesium sulfate, magnesium chloride or magnesium nitrate, the magnesium mineral
Including one of light-calcined magnesite, calcining boron mud, calcining asbestos tailings, reacted due to being substantially magnesia with ammonium salt,
Principle is identical.
It carries out, is accumulated without ammonia, present apparatus good seal will not simultaneously due to leaching magnesia and generating magnesium hydroxide
It generates ammonia to overflow, furthermore device is simple, and operation is easy, the magnesium hydroxide purity is high prepared.
Detailed description of the invention
Fig. 1 is that the leaching solid magnesium mine of the utility model prepares the device of magnesium hydroxide.
Fig. 2 is the condensation pipe device of the utility model.
Specific embodiment
Illustrate specific embodiment of the present utility model with reference to the accompanying drawing.
The device that solid magnesium mine prepares magnesium hydroxide is leached in the building of embodiment 1
A kind of building ammonia-ammonium circulation as shown in Figure 1 prepares the device of magnesium hydroxide, mainly by the first reaction kettle 1, second
Reaction kettle 2, the first centrifugal pump 3, water stream injection pump 4 constitute, first reaction kettle 1 at 4 gas access of water stream injection pump pass through lead
Tracheae connection, second reaction kettle 2, the first centrifugal pump 3, water stream injection pump 4 are in turn connected to form closed circuit by catheter,
For water stream injection pump 4 right above the second reaction kettle 2, gas liquid outlet end connects the second magnesium reaction kettle 2,3 liquid inlet of the first centrifugal pump
The second reaction kettle 2 of end connection, outlet end connects 4 fluid inlet end of water stream injection pump.
First reaction kettle 1 is equipped with condenser pipe close to the first reaction kettle end on gas-guide tube at 4 gas access of water stream injection pump
5, including cylinder A, gas access B to be condensed, condensed gas outlet C, condensate liquid bypass outlet D, gas access B to be condensed and cold
Lime set bypass outlet D is all connected with the first reaction kettle 1, and condensed gas exports 4 gas access of C connection water stream injection pump, condensate liquid reflux
Outlet D is connected with valve.
Device further includes the second centrifugal pump 6, cartridge filter 7, and the first reaction kettle 1, the second centrifugal pump 6, cartridge filter 7 pass through drain
Pipe is sequentially connected, and cartridge filter 7 connects the gas-guide tube between condenser pipe 5 and the second reaction kettle 2 by tee tube.
Embodiment 2 prepares magnesium hydroxide using the light-calcined magnesite powder round-robin method of magnesia mass fraction 90%
Magnesium hydroxide is prepared using the device that embodiment 1 constructs, is carried out in accordance with the following steps:
1) mixture of calcined magnesite and ammonium salt solution is added in the preparation stage in the first reaction kettle, in the second reaction
Soluble magnesium salting liquid is added in kettle；
2) the first reaction kettle leaches magnesium, the second reaction kettle prepares the magnesium hydroxide stage, is heated by the way of heating water bath
First reaction kettle opens the first centrifugal pump, obtains magnesium salts in the first reaction kettle, obtain magnesium hydroxide in the second reaction kettle.
3) magnesium hydroxide and slag stage are discharged, magnesium hydroxide suspension in the second reaction kettle of Valved discharge is opened, filters, washes
It washs to obtain magnesium hydroxide and ammonium salt solution, the solid-liquid that unlatching the second centrifugal pump conveying is leached to cartridge filter opens the first centrifugal pump,
In magnesium salt solution enter the second reaction kettle, the slag of cartridge filter is discharged, adds ammonium salt and magnesium mineral in the first reaction kettle.
4) it repeats 2), 3) to operate and enters the technique that circulation extracts magnesium hydroxide, and so on.
Claims (3)
1. a kind of device for leaching solid magnesium mine and preparing magnesium hydroxide, it is characterised in that: instead including the first reaction kettle (1), second
Kettle (2), the first centrifugal pump (3), water stream injection pump (4) are answered, is led at first reaction kettle (1) and water stream injection pump (4) gas access
Gas-guide tube connection is crossed, second reaction kettle (2), the first centrifugal pump (3), water stream injection pump (4) are sequentially connected shape by catheter
At closed circuit, for water stream injection pump (4) right above the second reaction kettle (2), gas liquid outlet end connects the second reaction kettle (2), and first
Centrifugal pump (3) fluid inlet end connects the second reaction kettle (2), and outlet end connects water stream injection pump (4) fluid inlet end.
2. a kind of device for leaching solid magnesium mine and preparing magnesium hydroxide as described in claim 1, it is characterised in that: described first is anti-
It answers and condenser pipe (5), including cylinder is installed close to the first reaction kettle end on gas-guide tube at kettle (1) and water stream injection pump (4) gas access
Body (A), gas access to be condensed (B), condensed gas export (C), condensate liquid bypass outlet (D), gas access (B) to be condensed and
Condensate liquid bypass outlet (D) is all connected with the first reaction kettle (1), and condensed gas exports (C) and connects water stream injection pump (4) gas access,
Condensate liquid bypass outlet (D) is connected with valve.
3. a kind of device for leaching solid magnesium mine and preparing magnesium hydroxide, feature exist as described in claim 1 and claim 2
In: the device further includes the second centrifugal pump (6), cartridge filter (7), the first reaction kettle (1), the second centrifugal pump (6), cartridge filter (7)
It is sequentially connected by catheter, cartridge filter (7) connects leading between condenser pipe (5) and the second reaction kettle (2) by tee tube
Tracheae.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821184267.0U CN208594031U (en) | 2018-07-25 | 2018-07-25 | A kind of device for leaching solid magnesium mine and preparing magnesium hydroxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821184267.0U CN208594031U (en) | 2018-07-25 | 2018-07-25 | A kind of device for leaching solid magnesium mine and preparing magnesium hydroxide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208594031U true CN208594031U (en) | 2019-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821184267.0U Expired - Fee Related CN208594031U (en) | 2018-07-25 | 2018-07-25 | A kind of device for leaching solid magnesium mine and preparing magnesium hydroxide |
Country Status (1)
| Country | Link |
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| CN (1) | CN208594031U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110759365A (en) * | 2018-07-25 | 2020-02-07 | 张旭 | Device for preparing magnesium hydroxide by leaching solid magnesium ore and use method |
-
2018
- 2018-07-25 CN CN201821184267.0U patent/CN208594031U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110759365A (en) * | 2018-07-25 | 2020-02-07 | 张旭 | Device for preparing magnesium hydroxide by leaching solid magnesium ore and use method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190312 Termination date: 20210725 |
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| CF01 | Termination of patent right due to non-payment of annual fee |