CN106518731B - Dimethyl suflfate purified product automates separator - Google Patents
Dimethyl suflfate purified product automates separator Download PDFInfo
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- CN106518731B CN106518731B CN201610789748.3A CN201610789748A CN106518731B CN 106518731 B CN106518731 B CN 106518731B CN 201610789748 A CN201610789748 A CN 201610789748A CN 106518731 B CN106518731 B CN 106518731B
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- acidity
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- central processing
- purified product
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C303/00—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides
- C07C303/42—Separation; Purification; Stabilisation; Use of additives
- C07C303/44—Separation; Purification
Abstract
The invention provides a kind of dimethyl suflfate purified product to automate separator, dimethyl suflfate purified product acidity situation can be grasped in real time, precise classification collects different acidity specification product, realize that dimethyl sulfate product is automatically separated by quality, the high-end dimethyl sulfate product batch output of acidity≤0.1% is realized, improves high-end dimethyl sulfate product yield;Continuous extraction is realized by the switching between intermediate storage tank, refined production is not interrupted, and greatly improves production efficiency;Realize that detection acidity, different acidity specification dimethyl sulfate product are automatically separated in real time, post employee's sampling analysis frequency is greatly decreased, and operational risk is greatly reduced.
Description
Technical field
The present invention relates to dimethyl suflfate preparation technology equipment, more particularly to a kind of dimethyl suflfate purified product to automate
Separator.
Background technology
At present, domestic production dimethyl sulfate product, temperature collection finished product is pressed by the period using refining and distilling;Stepping time rule
Lattice store product, and specific way is:
Post employee's continuous charging distillation, controls vapo(u)rizing temperature, over time, light component constantly steams, and includes acidity
The heavy constituent of material is constantly accumulated in distillation still, and therefore, the acidity that time started section steams material dimethyl suflfate is minimum,
Dimethyl sulfate product content highest, with constantly elapsing backward for distillation time, the dimethyl sulfate product acidity steamed
More and more higher, content are more and more lower.
To collect the dimethyl sulfate product of different size (point three class, product acidity≤0.10%;Acidity≤
0.20%;Acidity > 0.20%), post employee presses vapo(u)rizing temperature and receiving slit liquid level, sampling analysis, and interruption produces, and according to
Assay dimethyl suflfate pans corresponding to by dimethyl sulfate product extraction.
The method, the acidity of dimethyl suflfate in receiving slit can not be monitored in real time, and can not be to the sulfuric acid two of different acidity
Methyl esters carries out categorised collection;Employee is cumbersome simultaneously, and multiple sampling analysis, interval produces in batches, and operational risk is big, production effect
Rate is low.
The content of the invention
In view of this, the present invention proposes a kind of production efficiency height, conveniently the dimethyl suflfate of different acidity is divided
The dimethyl suflfate purified product automation separator that class is collected.
The technical proposal of the invention is realized in this way:A kind of dimethyl suflfate purified product automates separator, bag
Include thermostatic tank, pH sensors, central processing unit and several intermediate storage tanks, each intermediate storage tank is correspondingly arranged on an electromagnetism
Valve, thermostatic tank connect with a magnetic valve and corresponding intermediate storage tank respectively, are provided with supplied materials valve on thermostatic tank and inside is set
PH sensors are equipped with, pH sensors, central processing unit connect with each solenoid signal, wherein,
PH sensors, gather the pH data of distillate in thermostatic tank and pass to central processing unit;
Central processing unit, multiple continuous acidity numerical intervals are stored with, each magnetic valve is corresponded to respectively, receives pH data
And corresponding acidity numerical value is calculated, and the acidity numerical value being calculated and the acidity numerical intervals are contrasted, calculate
Which acidity numerical intervals obtained acidity numerical value falls into and just sends open command to its corresponding magnetic valve, to remaining magnetic valve
Send out code;
Magnetic valve, open when receiving open command, closed when receiving out code.
On the basis of above technical scheme, it is preferred that the pH data meet relationship below, pH with acidity numerical value
=-lg { H+ }, wherein pH are the pH data that pH sensors detect, H+ is acidity numerical value.
On the basis of above technical scheme, it is preferred that the intermediate storage tank and magnetic valve are respectively arranged with three, in
Central processor is stored with three continuous acidity numerical intervals, respectively acidity value≤0.10%, 0.10% < acidity values≤
0.20% and acidity value > 0.20%, three magnetic valves are corresponded to respectively.
On the basis of above technical scheme, it is preferred that also including temperature sensor, two flow control valves, two flow controls
Valve processed is respectively communicated with thermostatic tank and cooling liquid water inlet pipe and coolant outlet pipe, temperature sensor, central processing unit and control valve
Signal connects successively, wherein,
Temperature sensor detection leads to the temperature data of distillate in thermostatic tank and passes to central processing unit;
Central processing unit, receive the temperature data and contrasted with the temperature value section of storage, when temperature data height
When the upper limit of temperature value section, the signal of enlargement discharge is sent to control valve corresponding to cooling liquid water inlet pipe, and simultaneously to cooling
Liquid outlet pipe sends the signal of enlargement discharge;It is corresponding to cooling liquid water inlet pipe when temperature data is less than temperature value interval limit
Control valve send reduce flow signal, and simultaneously to coolant outlet pipe send reduce flow signal;
Control valve, the coolant rate passed through is reduced when receiving the signal for reducing flow, receive the letter of enlargement discharge
Number when increase the coolant rate that passes through.
On the basis of above technical scheme, it is preferred that be also respectively arranged at perseverance including some vacuum valves, the vacuum valve
Warm tank and intermediate storage tank, and connected with pumped vacuum systems.
On the basis of above technical scheme, it is preferred that be also respectively arranged at thermostatic tank including some atmospheric valves, atmospheric valve
With intermediate storage tank.
The dimethyl suflfate purified product automation separator of the present invention has below beneficial to effect relative to prior art
Fruit:
(1) dimethyl suflfate purified product acidity situation can be grasped in real time, and precise classification collects different acidity specification sulfuric acid
Dimethyl ester product, realize that product is automatically separated by quality, realize that the high-end dimethyl sulfate product batch of acidity≤0.1% produces
Go out, improve high-end dimethyl sulfate product yield;
(2) continuous extraction is realized by the switching between intermediate storage tank, refined production is not interrupted, and greatly improves production effect
Rate;
(3) realize that detection acidity, different acidity specification dimethyl sulfate product are automatically separated in real time, post employee sampling point
The analysis frequency is greatly decreased, and operational risk is greatly reduced.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the connection relationship diagram that dimethyl suflfate purified product of the present invention automates separator.
Embodiment
Below in conjunction with the accompanying drawing in embodiment of the present invention, the technical scheme in embodiment of the present invention is carried out clear
Chu, it is fully described by, it is clear that described embodiment only a part of embodiment of the present invention, rather than whole realities
Apply mode.Based on the embodiment in the present invention, those of ordinary skill in the art institute under the premise of creative work is not made
The every other embodiment obtained, belongs to the scope of protection of the invention.
Reference picture 1, dimethyl suflfate purified product of the invention automation separator, including thermostatic tank 1, pH sensors
2nd, central processing unit 3 and several intermediate storage tanks 4, each intermediate storage tank 4 are correspondingly arranged on a magnetic valve 5.
Thermostatic tank 1, continuously receive and store the dimethyl suflfate purified product after distillation, and according to the difference difference of acidity
Supply each intermediate storage tank 4.Supplied materials valve 11 is provided with thermostatic tank 1, so as to be connected with DMS condensers.
Intermediate storage tank 4, different intermediate storage tanks 4 is selected to carry out according to the dimethyl suflfate purified product of different acidity
Classification storage, thermostatic tank 1, magnetic valve 5 connect with intermediate storage tank 4.
PH sensors 2, gather the pH data of distillate in thermostatic tank 1 and pass to central processing unit 3, be arranged at thermostatic tank
Inside 1.Specifically, pH meter can be used.
Central processing unit 3, multiple continuous acidity numerical intervals are stored with, each magnetic valve 5 is corresponded to respectively, receives pH numbers
According to and calculate corresponding acidity numerical value, and the acidity numerical value being calculated and the acidity numerical intervals are contrasted, counted
Which acidity numerical intervals obtained acidity numerical value falls into and just sends open command to its corresponding magnetic valve 5, to remaining electricity
Magnet valve 5 sends out code.Magnetic valve 5, open when receiving open command, closed when receiving out code.In this way,
According to the dimethyl suflfate purified product of different acidity different intermediate storage tanks 4 can be selected to carry out classification storage.Specifically, institute
Stating pH data and meet relationship below with acidity numerical value, pH=-lg { H+ }, wherein pH are the pH data that pH sensors 2 detect,
H+ is acidity numerical value.The intermediate storage tank 4 and magnetic valve 5 are respectively arranged with three, and central processing unit 3 is stored with three continuously
Acidity numerical intervals, respectively acidity value≤0.10%, 0.10% < acidity value≤0.20% and acidity value > 0.20%, point
Dui Ying not three magnetic valves 5.
Preferably, in addition to temperature sensor 6, two flow control valves 7, two flow control valves 7 be respectively communicated with thermostatic tank 1 with
Cooling liquid water inlet pipe 71 and coolant outlet pipe 72, temperature sensor 6, central processing unit 3 connect with control valve 7 successively signal,
Wherein, the detection of temperature sensor 6 leads to the temperature data of distillate in thermostatic tank 1 and passes to central processing unit 3;Central processing unit
3, receive the temperature data and contrasted with the temperature value section of storage, when temperature data is higher than the temperature value section upper limit
When, to the signal of the transmission of control valve 7 enlargement discharge corresponding to cooling liquid water inlet pipe 71, and simultaneously to the correspondence of coolant outlet pipe 72
Control valve 7 send enlargement discharge signal;It is right to cooling liquid water inlet pipe 71 when temperature data is less than temperature value interval limit
The control valve 7 answered sends the signal for reducing flow, and sends reduction flow to control valve 7 corresponding to coolant outlet pipe 72 simultaneously
Signal;Control valve 7, the coolant rate passed through is reduced when receiving the signal for reducing flow, receive the letter of enlargement discharge
Number when increase the coolant rate that passes through.In this way, closed loop control is formed by temperature sensor 6, central processing unit 3 and control valve 7
Loop processed, ensure temperature stabilization in thermostatic tank 1.
Preferably, in addition to some vacuum valves 8, the vacuum valve 8 are respectively arranged at thermostatic tank 1 and intermediate storage tank 4, and
Connected with pumped vacuum systems.
Also include some atmospheric valves 9, atmospheric valve 9 is respectively arranged at thermostatic tank 1 and intermediate storage tank 4.In this way, perseverance can be prevented
Negative pressure is formed in warm tank 1 and intermediate storage tank 4, ensures liquid outflow.
The workflow of the dimethyl suflfate purified product automation separator of the present invention is introduced in detail below:
Step 1, the external DMS condensers of supplied materials valve 11, dimethyl suflfate purified product enter in thermostatic tank 1;
Step 2, initial production acidity value≤0.10%, central processing unit 3 open the magnetic valve 5 of the leftmost side, close remaining
Magnetic valve 5, the dimethyl suflfate purified product of acidity value≤0.10% are automatically flowed into the intermediate storage tank 4 of the leftmost side;
Step 3, as distillation is carried out, the product acidity value entered by DMS condensers is begun to ramp up, when product acidity value
> 0.10%, central processing unit 3 open the magnetic valve 5 of centre, close remaining magnetic valve 5,0.10% < acidity value≤0.20%
Dimethyl suflfate purified product automatically flow into centre intermediate storage tank 4 in;
Step 4, as distillation is carried out, the product acidity value entered by DMS condensers is further up, when product acidity
Value > 0.20%, central processing unit 3 open the magnetic valve 5 of the rightmost side, close remaining magnetic valve 5, acidity value > 0.20% sulphur
Dimethyl phthalate purified product is automatically flowed into the intermediate storage tank 4 of the rightmost side.
The better embodiment of the present invention is the foregoing is only, is not intended to limit the invention, it is all the present invention's
Within spirit and principle, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.
Claims (6)
1. a kind of dimethyl suflfate purified product automates separator, it is characterised in that:Including thermostatic tank (1), pH sensors
(2), central processing unit (3) and several intermediate storage tanks (4), each intermediate storage tank (4) are correspondingly arranged on a magnetic valve
(5), thermostatic tank (1) connects with a magnetic valve (5) and corresponding intermediate storage tank (4) respectively, is provided with and on thermostatic tank (1)
Expect valve (11) and be internally provided with pH sensors (2), pH sensors (2), central processing unit (3) and each magnetic valve (5) signal
Connection, wherein,
PH sensors (2), gather the pH data of thermostatic tank (1) interior distillate and pass to central processing unit (3);
Central processing unit (3), multiple continuous acidity numerical intervals are stored with, each magnetic valve (5) is corresponded to respectively, receives pH numbers
According to and calculate corresponding acidity numerical value, and the acidity numerical value being calculated and the acidity numerical intervals are contrasted, counted
Which acidity numerical intervals obtained acidity numerical value falls into and just sends open command to its corresponding magnetic valve (5), to remaining
Magnetic valve (5) sends out code;
Magnetic valve (5), is opened when receiving open command, is closed when receiving out code.
2. dimethyl suflfate purified product as claimed in claim 1 automates separator, it is characterised in that:The pH data
Meet relationship below with acidity numerical value, pH=-lg { H+ }, wherein pH are the pH data that pH sensors (2) detect, H+ is acid
Number of degrees value.
3. dimethyl suflfate purified product as claimed in claim 1 automates separator, it is characterised in that:Deposit the centre
Storage tank (4) and magnetic valve (5) are respectively arranged with three, and central processing unit (3) is stored with three continuous acidity numerical intervals, point
Not Wei acidity value≤0.10%, 0.10% < acidity value≤0.20% and acidity value > 0.20%, respectively correspond to three magnetic valves
(5)。
4. dimethyl suflfate purified product as claimed in claim 1 automates separator, it is characterised in that:Also include temperature
Sensor (6), two flow control valves (7), two flow control valves (7) are respectively communicated with thermostatic tank (1) and cooling liquid water inlet pipe (71)
With coolant outlet pipe (72), temperature sensor (6), central processing unit (3) connect with control valve (7) successively signal, wherein,
The temperature data of logical thermostatic tank (1) the interior distillate of temperature sensor (6) detection simultaneously passes to central processing unit (3);
Central processing unit (3), receive the temperature data and contrasted with the temperature value section of storage, when temperature data is higher than
During the upper limit of temperature value section, to corresponding to cooling liquid water inlet pipe (71) control valve (7) send enlargement discharge signal, and simultaneously to
Control valve (7) corresponding to coolant outlet pipe (72) sends the signal of enlargement discharge;When temperature data is less than under temperature value section
In limited time, being sent to control valve (7) corresponding to cooling liquid water inlet pipe (71) reduces the signal of flow, and simultaneously to coolant outlet pipe
(72) control valve corresponding to (7) sends the signal for reducing flow;
Control valve (7), the coolant rate passed through is reduced when receiving the signal for reducing flow, receive the signal of enlargement discharge
The coolant rate that Shi Jia great passes through.
5. dimethyl suflfate purified product as claimed in claim 1 automates separator, it is characterised in that:Also include some
Vacuum valve (8), the vacuum valve (8) is respectively arranged at thermostatic tank (1) and intermediate storage tank (4), and is connected with pumped vacuum systems.
6. dimethyl suflfate purified product as claimed in claim 1 automates separator, it is characterised in that:Also include some
Atmospheric valve (9), atmospheric valve (9) are respectively arranged at thermostatic tank (1) and intermediate storage tank (4).
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CN201610789748.3A CN106518731B (en) | 2016-08-31 | 2016-08-31 | Dimethyl suflfate purified product automates separator |
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CN106518731B true CN106518731B (en) | 2018-02-16 |
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CN103566614A (en) * | 2013-10-30 | 2014-02-12 | 临沂远博化工有限公司 | Dimethyl sulfate rectifying tower |
CN204705871U (en) * | 2014-12-17 | 2015-10-14 | 宜昌新洋丰肥业有限公司 | A kind of on-line cleaning system for sulfuric acid production line |
CN105130850A (en) * | 2015-09-17 | 2015-12-09 | 湖北远大富驰医药化工股份有限公司 | Method for purifying dimethyl sulfate |
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Patent Citations (8)
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CN101348693A (en) * | 2008-03-25 | 2009-01-21 | 兰州理工大学 | Automatic control system for neutralization process in gelatin production |
CN201519493U (en) * | 2009-10-21 | 2010-07-07 | 天津合兴碳化工有限公司 | Automatic liquid phase separation control system |
CN102249953A (en) * | 2011-05-20 | 2011-11-23 | 山东兴辉化工有限公司 | Method for converting dimethyl sulfate waste residue into dimethyl sulfate product |
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