CN207276528U - The device of cyclohexanol is recycled from cyclohexanol rectifying column kettle liquid - Google Patents
The device of cyclohexanol is recycled from cyclohexanol rectifying column kettle liquid Download PDFInfo
- Publication number
- CN207276528U CN207276528U CN201721194088.0U CN201721194088U CN207276528U CN 207276528 U CN207276528 U CN 207276528U CN 201721194088 U CN201721194088 U CN 201721194088U CN 207276528 U CN207276528 U CN 207276528U
- Authority
- CN
- China
- Prior art keywords
- storage tank
- cyclohexanol
- rectifying column
- complete condenser
- pump
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/74—Separation; Purification; Use of additives, e.g. for stabilisation
- C07C29/76—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/74—Separation; Purification; Use of additives, e.g. for stabilisation
- C07C29/76—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment
- C07C29/80—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment by distillation
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/74—Separation; Purification; Use of additives, e.g. for stabilisation
- C07C29/76—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment
- C07C29/86—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment by liquid-liquid treatment
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The utility model discloses the device that cyclohexanol is recycled in a kind of rectifying column kettle liquid from cyclohexanol, belong to field of chemical equipment.The device includes rectifying column, storage tank and cooler, it is characterised in that rectifying column uses double tower, is connected in series by pump and storage tank A；Complete condenser A, complete condenser A connection storage tank B are connected by pipeline at the top of first rectifying column, Second distillation column top connects complete condenser B by pipeline, and complete condenser B connections storage tank C, storage tank C are connected in parallel storage tank B and storage tank D by valve at the same time；Complete condenser B is connected in parallel complete condenser A and vacuum pump at the same time；Second distillation column bottom connects extractant delivery pump and discharging pump, discharging pump connection storage tank E respectively.The arrangement increases the rate of recovery of cyclohexanol and the purity of recycling cyclohexanol, extractant used is water, economic and environmental protection.
Description
Technical field
The device that cyclohexanol is recycled in a kind of rectifying column kettle liquid from cyclohexanol is the utility model is related to, belongs to Chemical Engineering Technology neck
Domain.
Background technology
Industrially generally use cyclohexane oxidation process and cyclohexene hydration method prepare cyclohexanol at present, inevitably
The accessory substances such as dicyclohexyl ether, cyclohexylidene hexamethylene and 1- cyclohexyl ring hexenes can be produced.The prior art is obtained by rectifying
The cyclohexanol of part high-purity, part cyclohexanol and heavy constituent form kettle liquid.Cyclohexanol content is up to 68% in kettle liquid, so having
Necessity recycles cyclohexanol, not only contributes to waste utilization, and reduce environmental pollution.
The content of the invention
For the purpose of fully recycling the cyclohexanol in cyclohexanol rectifying column kettle liquid, the utility model proposes one kind to recycle ring
The device of hexanol.The purpose of this utility model is achieved through the following technical solutions：
The device of cyclohexanol, including rectifying column, storage tank and cooler are recycled in the rectifying column kettle liquid from cyclohexanol, it is special
Sign is that rectifying column uses double tower, is connected in series by pump and storage tank A；Complete condenser is connected by pipeline at the top of first rectifying column
A, complete condenser A connection storage tank B, connect complete condenser B at the top of Second distillation column by pipeline, complete condenser B connections storage tank C, and storage tank C leads to
Cross valve and be connected in parallel storage tank B and storage tank D at the same time；Complete condenser B is connected in parallel complete condenser A and vacuum pump at the same time；Second distillation column
Bottom connects extractant delivery pump and discharging pump, discharging pump connection storage tank E respectively.
Each rectifying column inner top is provided with cooler.Bottom connects dehvery pump.
The utility model innovative point：First rectifying column tower top cooler plays the role of the heavy constituent purification light component that flows back,
Light component flows into storage tank B by complete condenser A.Kettle liquid is pumped into storage tank A, and since two tower reaction time are different with temperature, which rises
Cooling and cushioning effect, the kettle liquid in the storage tank is pumped into Second distillation column, while is pumped into 25% extractant, stirs 1h, rectifying.
Tower top cooler makes the azeotropic mixture of heavy constituent and water flow back, and the azeotropic mixture of light component and water is purified, and is flowed into by complete condenser B
Storage tank C, is stood in the storage tank, and extraction agent flows into storage tank D, and upper strata light component flows into storage tank B, kettle liquid pump by gravity
Enter storage tank E.
Rectifying column is using ceramic raschig rings as filler in described device.
First rectifying column cooler and Second distillation column cooler are water-cooled in described device.
Extractant is deionized water in described device.
The utility model advantage：The device is easy to operate, input cost is low, can more fully recycle cyclohexanol rectifying column
Cyclohexanol in kettle liquid, the rate of recovery is up to more than 83%；Extractant used is water, economic and environmental protection.
Brief description of the drawings
Fig. 1 is the utility model apparatus structure schematic diagram, in figure, 1- first rectifying columns, and 2- coolers A, 3- complete condenser A,
4- storage tanks B, 5- cooler B, 6- Second distillation column, 7- complete condensers B, 8- storage tank C, 9- storage tank D, 10- vacuum pump, 11- storage tank E,
12- extractant delivery pumps, 13- discharging pumps, 14- delivery pumps C, 15- storage tank A, 16- delivery pump B, 17- delivery pump A.
Specific embodiment
For the utility model is better described, it is described in detail with reference to attached drawing.
Embodiment 1
Such as Fig. 1, the device of cyclohexanol, including rectifying column, storage tank and cooling are recycled in the rectifying column kettle liquid from cyclohexanol
Device, it is characterised in that rectifying column uses double tower, is sequentially connected in series by pumping (16), storage tank A (15) and pump (14)；First essence
Evaporate and complete condenser A (3), complete condenser A (3) connection storage tank B (4) are connected by pipeline at the top of tower (1), Second distillation column (6) top leads to
Piping connection complete condenser B (7), complete condenser B (7) connection storage tank C (8), storage tank C (8) are connected in parallel storage tank B by valve at the same time
(4) and storage tank D (9)；Complete condenser B (7) while it is connected in parallel complete condenser A (3) and vacuum pump (10)；Second rectifying (6) tower bottom
Extractant delivery pump is connected respectively（12）And discharging pump（13）, discharging pump（13）Connect storage tank E（11）.
First rectifying column（1）Inner top is provided with cooler（2）, bottom connection dehvery pump（17）.Second distillation column（6）It is interior
Top is provided with cooler（5）, bottom connection dehvery pump（14）.
Application examples 1
Cyclohexanol rectifying tower reactor liquid pump is entered into first rectifying column（1）, negative pressure 0.1MPa, tower reactor is gradually heated to 100 DEG C, this
Shi Tading is 60 DEG C, cooler（2）Control reflux, improves light component purity.Light component is liquefied by complete condenser A (3) and flows into storage
Tank B (4), kettle liquid are pumped into storage tank A (15) and are down to room temperature, are pumped into Second distillation column (6), while pass through extractant delivery pump（12）
The extractant of above-mentioned kettle liquid 25% is pumped into Second distillation column (6), and stirs 1h.Tower reactor is gradually heated to 60 DEG C, and tower top is at this time
44 DEG C, tower top cooler control reflux, raising distillates compositional purity.Light component is liquefied by complete condenser B (7) and flows into storage tank C
(8), liquid separation is stood, lower water is put into storage tank D (9), and upper strata light component flows into storage tank B (4) by gravity.
Rectifying column is using ceramic raschig rings as filler in described device.
The control of first rectifying column cooler is 80 DEG C in described device, and the control of Second distillation column cooler is 50 DEG C.
Extractant is deionized water in described device.
Required temperature is low in the process of running for the utility model, so reducing energy consumption, water is cheap easy as extractant
, to environment non-hazardous, the cyclohexanol recycling in cyclohexanol rectifying column kettle liquid can be realized well.Cyclohexanol overall recovery reaches
83% and recycling cyclohexanol purity up to 97%.
Claims (2)
1. the device of cyclohexanol is recycled from cyclohexanol rectifying column kettle liquid, including rectifying column, storage tank and cooler, its feature exist
In rectifying column uses double tower, is connected in series by pump and storage tank A；Complete condenser A is connected by pipeline at the top of first rectifying column, entirely
Condenser A connection storage tank B, Second distillation column top connect complete condenser B by pipeline, and complete condenser B connections storage tank C, storage tank C pass through valve
Door is connected in parallel storage tank B and storage tank D at the same time；Complete condenser B is connected in parallel complete condenser A and vacuum pump at the same time；Second distillation column bottom
Extractant delivery pump and discharging pump, discharging pump connection storage tank E are connected respectively；
Each rectifying column inner top is provided with cooler；Bottom connects dehvery pump.
2. the device of cyclohexanol is recycled from cyclohexanol rectifying column kettle liquid as claimed in claim 1, it is characterised in that rectifying column
Make filler with ceramic raschig rings.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2017105328853 | 2017-07-03 | ||
| CN201710532885.3A CN107162877A (en) | 2017-07-03 | 2017-07-03 | The device of cyclohexanol is reclaimed from cyclohexanol rectifying column kettle liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207276528U true CN207276528U (en) | 2018-04-27 |
Family
ID=59827484
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710532885.3A Withdrawn CN107162877A (en) | 2017-07-03 | 2017-07-03 | The device of cyclohexanol is reclaimed from cyclohexanol rectifying column kettle liquid |
| CN201721194088.0U Expired - Fee Related CN207276528U (en) | 2017-07-03 | 2017-09-18 | The device of cyclohexanol is recycled from cyclohexanol rectifying column kettle liquid |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710532885.3A Withdrawn CN107162877A (en) | 2017-07-03 | 2017-07-03 | The device of cyclohexanol is reclaimed from cyclohexanol rectifying column kettle liquid |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN107162877A (en) |
-
2017
- 2017-07-03 CN CN201710532885.3A patent/CN107162877A/en not_active Withdrawn
- 2017-09-18 CN CN201721194088.0U patent/CN207276528U/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN107162877A (en) | 2017-09-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180427 Termination date: 20210918 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |