CN208632416U - The continuous process system of sodium methoxide and potassium methoxide - Google Patents
The continuous process system of sodium methoxide and potassium methoxide Download PDFInfo
- Publication number
- CN208632416U CN208632416U CN201820568814.9U CN201820568814U CN208632416U CN 208632416 U CN208632416 U CN 208632416U CN 201820568814 U CN201820568814 U CN 201820568814U CN 208632416 U CN208632416 U CN 208632416U
- Authority
- CN
- China
- Prior art keywords
- dissolving tank
- tower
- lye dissolving
- reaction
- lye
- 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.)
- Expired - Fee Related
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- WQDUMFSSJAZKTM-UHFFFAOYSA-N Sodium methoxide Chemical compound [Na+].[O-]C WQDUMFSSJAZKTM-UHFFFAOYSA-N 0.000 title claims abstract description 33
- BDAWXSQJJCIFIK-UHFFFAOYSA-N potassium methoxide Chemical compound [K+].[O-]C BDAWXSQJJCIFIK-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 238000010924 continuous production Methods 0.000 title claims abstract description 10
- 238000006243 chemical reaction Methods 0.000 claims abstract description 51
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000001802 infusion Methods 0.000 claims abstract description 11
- 239000003513 alkali Substances 0.000 claims description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 abstract description 98
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 239000002994 raw material Substances 0.000 abstract description 8
- 230000002045 lasting effect Effects 0.000 abstract description 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 158
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 27
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- -1 Sodium alkoxide Chemical class 0.000 description 2
- VXJPCEOTZNHHOA-UHFFFAOYSA-N [K].OC Chemical compound [K].OC VXJPCEOTZNHHOA-UHFFFAOYSA-N 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 241000254173 Coleoptera Species 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 238000012824 chemical production Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- IGUXCTSQIGAGSV-UHFFFAOYSA-K indium(iii) hydroxide Chemical compound [OH-].[OH-].[OH-].[In+3] IGUXCTSQIGAGSV-UHFFFAOYSA-K 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The utility model discloses the continuous process systems of a kind of sodium methoxide and potassium methoxide, the groove top of first lye dissolving tank and the second lye dissolving tank is commonly connected to the entrance of delivery pump by transfer line, the outlet of delivery pump is connected to the entrance of heater, heater is connected to the upper inlet of reaction tower by pipeline, the top exit of reaction tower is connected to rectifying atmospheric tower by steam output pipe, the bottom that the bottom of rectifying atmospheric tower is respectively connected to the first lye dissolving tank by shunting transfer line, the bottom of second lye dissolving tank and the input port of evaporator, the delivery outlet of the evaporator is connected to the steam infusion orifice on reaction tower lower sides, the outlet at bottom of the reaction tower is connected to a collecting tank.The utility model water vapour can be discharged in time, and it the methanol steam after reaction is delivered to rectifying atmospheric tower handles to obtain anhydrous methanol and is added in lye dissolving tank and reaction tower as raw material and reuse, reaction process does not need to interrupt, and back reaction will not occur, and ensure that the lasting progress of production.
Description
Technical field
The utility model relates to a kind of production system, the continuous process system of specifically a kind of sodium methoxide and potassium methoxide belongs to
In chemical production field.
Background technique
The production process of sodium methoxide or potassium methoxide, which refers to using sodium hydroxide or potassium hydroxide and alcohol as raw material, generates first
Sodium alkoxide or potassium methoxide product, chemical equation are as follows: CH3OH+NaOH→CH3ONa+H2O、CH3OH+KOH→CH3OK+H2O,
In actual production, this reaction is reversible reaction, needs that constantly water is discharged from reaction system, therefore at regular intervals all
Suspend production, take the water generated in reaction kettle away, and adds anhydrous methanol as reaction raw materials into reaction kettle.At this
In the process, often suspending during production undoubtedly will be greatly reduced production efficiency, and need constantly addition anhydrous methanol, former
Expect that cost is very high.
Summary of the invention
In view of the above-mentioned problems of the prior art, the purpose of the utility model is to provide a kind of sodium methoxide and potassium methoxides
Continuous process system, can in real time by the discharge of the water of generation, do not need to interrupt production process, and can reduce raw material investment at
Originally, improving production efficiency and economic benefit.
A kind of continuous life of sodium methoxide and potassium methoxide that in order to achieve the above purposes, the technical solution adopted by the utility model is:
Production system, which is characterized in that including arranged side by side the first lye dissolving tank and the second lye dissolving tank, first lye dissolving tank and second molten
The groove top of alkali slot is commonly connected to the entrance of a delivery pump by transfer line, and the outlet of the delivery pump is connected to a heater
Entrance, the outlet of heater is connected to the upper inlet of a reaction tower by pipeline, and the top exit of reaction tower passes through steam
Efferent duct is connected to the entrance of rectifying atmospheric tower, and the outlet at bottom of the rectifying atmospheric tower is separately connected by shunting transfer line
To the bottom, the bottom of the second lye dissolving tank and the input port of an evaporator of the first lye dissolving tank, the delivery outlet of the evaporator is connected
Steam infusion orifice on to reaction tower lower sides, the outlet at bottom of the reaction tower are connected to a collecting tank.
The anhydrous methanol flowed out from rectifying atmospheric tower tower bottom can be by gravity direct infusion to the first lye dissolving tank, the
In two lye dissolving tanks.Further, the bulk velocity carried out, promotion is reacted, the rectifying normal pressure can be continued in order to guarantee to react
Water pump is all equipped on the shunting transfer line that tower is connect with the first lye dissolving tank, the second lye dissolving tank respectively, it can be by rectifying by water pump
The anhydrous methanol of atmospheric tower tower bottom outflow is pumped directly into the first lye dissolving tank, in the second lye dissolving tank.
Further, in order to accelerate the first lye dissolving tank, in the second lye dissolving tank lye dissolution, first lye dissolving tank and
Circulating pump is all equipped in two lye dissolving tanks, sodium hydroxide or potassium hydroxide can mix shape with anhydrous methanol rapidly after unlatching circulating pump
At lye.
Preferably, the reaction tower is sieve-plate tower, has multiple sieve plate in sieve-plate tower, with the progress of distillation reaction, the bottom of from
The anhydrous methanol steam that portion's steam infusion orifice enters can collide with the lye water layer fallen above sieve plate, by the water on sieve plate
Layer blows afloat into turbulent violent, boiling-like froth bed, the contact area of anhydrous methanol steam and lye is increased, so that reaction can
More fully to carry out, the sodium methoxide or methanol potassium solution of generation are collected from the outflow of the outlet at bottom of reaction tower.
The anhydrous methanol flowed out from rectifying atmospheric tower is flow to respectively in the first lye dissolving tank and the second lye dissolving tank, and by hydroxide
Sodium and potassium hydroxide put into the first lye dissolving tank respectively, the second lye dissolving tank forms lye；By delivery pump by the first lye dissolving tank and
Lye in two lye dissolving tanks pumps out, and enters in reaction tower after being heated by heater from the upper inlet of reaction tower, while from essence
The anhydrous methanol for evaporating atmospheric tower outflow can evaporate to form anhydrous methanol steam through evaporator, enter reaction tower from steam infusion orifice；
The methanol solution of sodium hydroxide and potassium hydroxide in reaction tower to flowing down, reacting by anhydrous methanol steam flows upward, the two
Continuous flow upstream contact is reacted in tower, and the sodium methoxide of generation and the methanol solution of potassium methoxide are expelled in collecting tank from tower bottom,
The mixed vapour of the first alcohol and water of generation is discharged by the top exit of reaction tower, and is delivered to rectifying normal pressure by steam output pipe
Tower obtains anhydrous methanol through separation and recovery, is shunted transfer line and is transmitted separately to the bottom of the first lye dissolving tank, the second lye dissolving tank
Bottom and evaporator input port, constantly recycled as reaction raw materials.
The utility model the water vapour of generation can be discharged in time, and it is normal that the methanol steam after reaction is delivered to rectifying
Pressure tower rectification process obtain anhydrous methanol rejoined in the first lye dissolving tank, the second lye dissolving tank and reaction tower as raw material repeat it is sharp
With reaction speed, which can remain, to be stablized and back reaction will not occur, and reaction process does not need to interrupt, and ensure that production
It is lasting to carry out, improve production efficiency；Since anhydrous methanol does not need to repeat to add, raw material input cost is reduced, is improved
Economic benefit.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
In figure, 11. first lye dissolving tanks, 12. second lye dissolving tanks, 13. delivery pumps, 14. heaters, 15. collecting tanks, 20. is anti-
Answer tower, 21. steam output pipes, 22. steam infusion orifices, 31. rectifying atmospheric towers, 32. shunt transfer lines, 33. evaporators, and 34.
Water pump.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
As shown, the continuous process system of a kind of sodium methoxide and potassium methoxide, including the first lye dissolving tank 11 arranged side by side
With the second lye dissolving tank 12, it is defeated that the groove top of first lye dissolving tank 11 and the second lye dissolving tank 12 by transfer line is commonly connected to one
The entrance of pump 13 is sent, the outlet of the delivery pump 13 is connected to the entrance of a heater 14, and the outlet of heater 14 passes through pipeline
It is connected to the upper inlet of a reaction tower 20, the top exit of reaction tower 20 is connected to rectifying atmospheric tower by steam output pipe 21
31 entrance, the outlet at bottom of the rectifying atmospheric tower 31 are respectively connected to the first lye dissolving tank 11 by shunting transfer line 32
Bottom, the bottom of the second lye dissolving tank 12 and an evaporator 33 input port, the delivery outlet of the evaporator 33 is connected to reaction tower
Steam infusion orifice 22 on 20 lower sides, the outlet at bottom of the reaction tower 20 are connected to a collecting tank 15.
In use, flowing to the first lye dissolving tank 11 and the second lye dissolving tank 12 respectively from the anhydrous methanol that rectifying atmospheric tower 31 flows out
In, and sodium hydroxide and potassium hydroxide are put into the first lye dissolving tank 11, the second lye dissolving tank 12, the alkali (sodium hydroxide of investment respectively
And potassium hydroxide) with anhydrous methanol mass ratio be all 1:3.5-4, the alkali formed in the first lye dissolving tank 11 and the second lye dissolving tank 12
The sodium hydroxide or potassium hydroxide content that the control of liquid temperature is dissolved in 45-65 DEG C, lye are in 19-23wt%.Pass through conveying
Pump 13 pumps out the lye in the first lye dissolving tank 11 and the second lye dissolving tank 12, from the upper of reaction tower 20 after being heated by heater 14
Square entrance enters in reaction tower 20, at the same can evaporate through evaporator 33 from the anhydrous methanol that rectifying atmospheric tower 31 flows out to be formed it is anhydrous
Methanol steam, anhydrous methanol steam enter reaction tower 20 from steam infusion orifice 22；Sodium hydroxide and hydroxide in reaction tower 20
The methanol solution of potassium to flowing down, reacted by anhydrous methanol steam flows upward, the two continuous flow upstream contact in reaction tower 20,
The sodium methoxide of generation and the methanol solution of potassium methoxide are expelled in collecting tank 15 from tower bottom, and pure first can be obtained after collection processing
Sodium alkoxide and potassium methoxide finished product, and the mixed vapour of the first alcohol and water generated is discharged by the top exit of reaction tower 20, and passes through steaming
Vapour efferent duct 21 is delivered to rectifying atmospheric tower 31, obtains anhydrous methanol through separation and recovery, is shunted transfer line 32 and transmitted respectively
To the bottom, the bottom of the second lye dissolving tank 12 and the input port of evaporator 33 of the first lye dissolving tank 11, constantly followed as reaction raw materials
Ring.
The anhydrous methanol flowed out from 31 tower bottom of rectifying atmospheric tower can pass through gravity direct infusion to the first lye dissolving tank
11, in the second lye dissolving tank 12.Further, the bulk velocity carried out, promotion is reacted, the essence can be continued in order to guarantee to react
It evaporates and is all equipped with water pump 34 on the shunting transfer line 32 that atmospheric tower 31 is connect with the first lye dissolving tank 11, the second lye dissolving tank 12 respectively,
The anhydrous methanol that 31 tower bottom of rectifying atmospheric tower flows out can be pumped directly into the first lye dissolving tank 11, the second lye dissolving tank by water pump 34
In 12.
Further, in order to accelerate the first lye dissolving tank 11, in the second lye dissolving tank 12 lye dissolution, first lye dissolving tank
11 and second are all equipped with circulating pump in lye dissolving tank 12, open after circulating pump sodium hydroxide or potassium hydroxide can rapidly with no water beetle
Alcohol is mixed to form lye.
Preferably, the reaction tower 20 is sieve-plate tower, has multiple sieve plate in sieve-plate tower, with the progress of distillation reaction, from
The anhydrous methanol steam that bottom steam infusion orifice 22 enters can collide with the lye water layer fallen above sieve plate, will be on sieve plate
Water layer blow afloat into it is turbulent acutely, the froth bed of boiling-like, the contact area of anhydrous methanol steam and lye is increased, so that instead
It can should more fully carry out, the sodium methoxide or methanol potassium solution of generation are from being collected the outflow of the outlet at bottom of reaction tower 20
Come.
Claims (4)
1. the continuous process system of a kind of sodium methoxide and potassium methoxide, which is characterized in that including the first lye dissolving tank arranged side by side
(11) and the second lye dissolving tank (12), the groove top of first lye dissolving tank (11) and the second lye dissolving tank (12) is common by transfer line
It is connected to the entrance of a delivery pump (13), the outlet of the delivery pump (13) is connected to the entrance of a heater (14), heater
(14) outlet is connected to the upper inlet of a reaction tower (20) by pipeline, and the top exit of reaction tower (20) is defeated by steam
Outlet pipe (21) is connected to the entrance of rectifying atmospheric tower (31), and the outlet at bottom of the rectifying atmospheric tower (31) is by shunting transfer tube
Line (32) is respectively connected to the input of the bottom of the first lye dissolving tank (11), the bottom of the second lye dissolving tank (12) and an evaporator (33)
Mouthful, the delivery outlet of the evaporator (33) is connected to the steam infusion orifice (22) on reaction tower (20) lower sides, the reaction
The outlet at bottom of tower (20) is connected to a collecting tank (15).
2. the continuous process system of sodium methoxide according to claim 1 and potassium methoxide, which is characterized in that the rectifying normal pressure
Water pump is all equipped on the shunting transfer line (32) that tower (31) is connect with the first lye dissolving tank (11), the second lye dissolving tank (12) respectively
(34)。
3. the continuous process system of sodium methoxide according to claim 1 and potassium methoxide, which is characterized in that the first molten alkali
Circulating pump is all equipped in slot (11) and the second lye dissolving tank (12).
4. the continuous process system of sodium methoxide according to claim 1 and potassium methoxide, which is characterized in that the reaction tower
It (20) is sieve-plate tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820568814.9U CN208632416U (en) | 2018-04-20 | 2018-04-20 | The continuous process system of sodium methoxide and potassium methoxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820568814.9U CN208632416U (en) | 2018-04-20 | 2018-04-20 | The continuous process system of sodium methoxide and potassium methoxide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208632416U true CN208632416U (en) | 2019-03-22 |
Family
ID=65732013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820568814.9U Expired - Fee Related CN208632416U (en) | 2018-04-20 | 2018-04-20 | The continuous process system of sodium methoxide and potassium methoxide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208632416U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021148174A1 (en) | 2020-01-23 | 2021-07-29 | Evonik Functional Solutions Gmbh | Method for the simultaneous production of sodium and potassium alcoholates |
| US11634372B2 (en) | 2020-01-23 | 2023-04-25 | Evonik Functional Solutions Gmbh | Method for the energy-efficient production of sodium and potassium alcoholates |
-
2018
- 2018-04-20 CN CN201820568814.9U patent/CN208632416U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021148174A1 (en) | 2020-01-23 | 2021-07-29 | Evonik Functional Solutions Gmbh | Method for the simultaneous production of sodium and potassium alcoholates |
| US11634372B2 (en) | 2020-01-23 | 2023-04-25 | Evonik Functional Solutions Gmbh | Method for the energy-efficient production of sodium and potassium alcoholates |
| US11746075B2 (en) | 2020-01-23 | 2023-09-05 | Evonik Functional Solutions Gmbh | Method for the simultaneous production of sodium and potassium alcoholates |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190322 |