CN207313483U - It is a kind of double（2- nitrobenzophenones）The preparation facilities of disulphide - Google Patents
It is a kind of double（2- nitrobenzophenones）The preparation facilities of disulphide Download PDFInfo
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- CN207313483U CN207313483U CN201721252623.3U CN201721252623U CN207313483U CN 207313483 U CN207313483 U CN 207313483U CN 201721252623 U CN201721252623 U CN 201721252623U CN 207313483 U CN207313483 U CN 207313483U
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- nitrobenzophenones
- disulphide
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- tubular reactor
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Abstract
The utility model discloses a kind of double（2 nitrobenzophenones）The preparation facilities of disulphide, including feed arrangement, reaction unit and equipment for separating liquid from solid.Feed arrangement is made of ortho-nitrochlorobenzene elevated dosing vessel, sodium disulfide aqueous solution elevated dosing vessel, premixer and material-handling pump；Reaction unit includes tubular reactor and heating equipment；Equipment for separating liquid from solid is made of material-handling pump, filter press, filtrate receiving tank.The utility model is pre-mixed by way of pipe reaction is combined material, and it is double to reach continuous production high-quality（2 nitrobenzophenones）The purpose of disulphide, solves that fragrant Ammonia impurity is more, product quality is low, the problems such as ammonia nitrogen in waste water concentration is high, difficult and equipment capacity is low.
Description
Technical field
Chemical production device is the utility model is related to, it is particularly a kind of double（2- nitrobenzophenones）The preparation dress of disulphide
Put.
Background technology
It is double（2- nitrobenzophenones）Disulphide, also known as 2,2'- dinitro diphenyl disulfides, are a kind of important Chemical Manufactures
Raw material.In production o-nitrobenzene sulfonic acid, orthanilic acid, double（2- aminophenyls）The important chemical products process such as disulphide
Middle extensive use.
At present, prepare double（2- nitrobenzophenones）The main of disulphide uses batch tank reactor, by adjacent nitro chlorine
Change benzene to mix, heat up with bottom water, stir, add sodium disulfide aqueous solution, prepare double（2- nitrobenzophenones）Disulphide product.
During this, sodium disulfide（Or the vulcanized sodium that selfdecomposition produces）It is also a kind of reducing agent while as sulfiding reagent, can be also
It is former substrate ortho-nitrochlorobenzene, double（2- nitrobenzophenones）The material with nitro produces some virtues in disulphide or other structures
Ammonia impurity, especially reacts the later stage, and the concentration of ortho-nitrochlorobenzene is greatly lowered in system, and double（2- nitrobenzophenones）Two
Sulfide concentration is very big, the sodium disulfide of addition（Or the vulcanized sodium that selfdecomposition produces）It is more to play the role of nitro reduction,
Produce fragrant Ammonia impurity（Reaction system is a bit darkish in color）, these impurity can seriously affect double（2- nitrobenzophenones）Disulphide downstream
The production of product.Reaction terminates, in order to obtain qualified pair of quality（2- nitrobenzophenones）Disulphide is, it is necessary to use a large amount of sour water handles
These fragrant Ammonia impurity remove, and have not only reduced reaction yield but also have added the difficulty of wastewater treatment.
Utility model content
Above-mentioned in order to solve the problems, such as, the utility model discloses a kind of double（2- nitrobenzophenones）The system of disulphide
Standby device, it is characterised in that comprising feed arrangement, reaction unit and equipment for separating liquid from solid, the feed arrangement includes adjacent nitro
Benzene Chloride elevated dosing vessel, sodium disulfide aqueous solution elevated dosing vessel, premixer and material-handling pump, the reaction unit bag
Containing tubular reactor and heating equipment, the equipment for separating liquid from solid includes material-handling pump, pressure filter and filtrate receiving tank, described
The lower end discharge port and tubular reactor of ortho-nitrochlorobenzene elevated dosing vessel and sodium disulfide aqueous solution elevated dosing vessel enter
Material mouth connects, between the ortho-nitrochlorobenzene elevated dosing vessel and sodium disulfide aqueous solution elevated dosing vessel and tubular reactor
The feed inlet for being connected with material-handling pump described in premixer and pressure filter connects, and discharge port and the filtrate receiving tank of pressure filter connect
Connect, the heating equipment is installed on the outside of tubular reactor.
Further, it is provided with ortho-nitrochlorobenzene elevated dosing vessel and sodium disulfide the aqueous solution elevated dosing vessel
Spinner flowmeter and heat-preserving equipment.
Further, the material of the tubular reactor can be stainless steel or the glass material of specific customization.
Further, the inlet port and outlet port of each device are equipped with stop valve.
Further, material receiving tank can be configured between the material outlet and material-handling pump of the tubular reactor.
The utility model is pre-mixed by way of pipe reaction is combined material, and it is double to reach continuous production high-quality
（2- nitrobenzophenones）The purpose of disulphide, solves that fragrant Ammonia impurity is more, product quality is low, and ammonia nitrogen in waste water concentration is high, difficulty
The problems such as reason and equipment capacity are low.
Brief description of the drawings
Fig. 1 is the utility model structure diagram；
In figure：1st, ortho-nitrochlorobenzene elevated dosing vessel, 2, sodium disulfide aqueous solution elevated dosing vessel, 3, premixer,
4th, tubular reactor, 5, heating equipment, 6, material-handling pump, 7, pressure filter, 8, filtrate receiving tank, 9, stop valve.
Embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained, shall fall within the protection scope of the present invention.
It is as shown in Figure 1, a kind of double（2- nitrobenzophenones）The preparation facilities of disulphide, includes feed arrangement, reaction unit
And equipment for separating liquid from solid, the feed arrangement include the high-order metering of ortho-nitrochlorobenzene elevated dosing vessel 1, sodium disulfide aqueous solution
Groove 2, premixer 3 and material-handling pump 6, the reaction unit include tubular reactor 4 and heating equipment 5, the solid-liquid point
Material-handling pump 6 ', pressure filter 7 and filtrate receiving tank 8,1 and two sulphur of ortho-nitrochlorobenzene elevated dosing vessel are included from device
The lower end discharge port for changing sodium water solution elevated dosing vessel 2 is connected with the feeding mouth of tubular reactor 4, and the ortho-nitrochlorobenzene is high
Premixer 3 is connected between position measuring tank 1 and sodium disulfide aqueous solution elevated dosing vessel 2 and tubular reactor 4 and material is defeated
Send pump 6, the discharge port of the tubular reactor 4 is connected with material-handling pump 6 ', the material-handling pump 6 ' and pressure filter 7 into
Material mouth connects, and the discharge port of pressure filter 7 is connected with filtrate receiving tank 8, and the heating equipment 5 is installed on the outer of tubular reactor 4
Side.
In device operational process, ortho-nitrochlorobenzene liquid and sodium disulfide aqueous solution are high-order from ortho-nitrochlorobenzene respectively
Measuring tank 1 is exported with 2 lower end of sodium disulfide aqueous solution elevated dosing vessel and mixed through spinner flowmeter into premixer 3,
After mixing, the reaction mass in premixer 3 is continuously transferred to external heating equipment 5 by material-handling pump 6
In tubular reactor 4, when adjusting the interior temperature of tubular reactor 4 flows through out reaction mass, ortho-nitrochlorobenzene is totally converted.Instead
Should after, from the material of the outlet of tubular reactor 4 outflow, by material collection tank or be directly over material-handling pump 6 and go to
Pressure filter 7 carries out solid-liquid separation process, and the filtrate that outflow is exported under filter press is collected in filtrate collecting tank 8, and press filtration terminates
Afterwards, filter cake is qualified pair of quality without acid rinsing（2- nitrobenzophenones）Disulphide product, its purity>99%, appearance is yellow
Color solid.The inlet port and outlet port of device are provided with stop valve 9, to facilitate the on off state for controlling each device at any time.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of the spirit or essential attributes without departing substantially from the utility model, it can realize that this practicality is new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this practicality is new
The scope of type is indicated by the appended claims rather than the foregoing description, it is intended that dropping to containing for the equivalency of claim
All changes in justice and scope are embraced therein.Any reference numeral in claim should not be considered as limitation
Involved claim.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical solution, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (5)
- It is 1. a kind of double（2- nitrobenzophenones）The preparation facilities of disulphide, it is characterised in that comprising feed arrangement, reaction unit and Equipment for separating liquid from solid, the feed arrangement include ortho-nitrochlorobenzene elevated dosing vessel（1）, the high-order metering of sodium disulfide aqueous solution Groove（2）, premixer（3）And material-handling pump（6）, the reaction unit includes tubular reactor（4）And heating equipment（5）, The equipment for separating liquid from solid includes material-handling pump（6’）, pressure filter（7）With filtrate receiving tank（8）, the ortho-nitrochlorobenzene Elevated dosing vessel（1）With sodium disulfide aqueous solution elevated dosing vessel（2）Lower end discharge port and tubular reactor（4）Feeding mouth Connection, the ortho-nitrochlorobenzene elevated dosing vessel（1）With sodium disulfide aqueous solution elevated dosing vessel（2）With tubular reactor （4）Between be connected with premixer（3）And material-handling pump（6）, the tubular reactor（4）Discharge port and material-handling pump （6’）Connection, the material-handling pump（6’）With pressure filter（7）Feed inlet connection, pressure filter（7）Discharge port connect with filtrate Closed cans（8）Connection, the heating equipment（5）It is installed on tubular reactor（4）Outside.
- It is 2. according to claim 1 a kind of double（2- nitrobenzophenones）The preparation facilities of disulphide, it is characterised in that：It is described Ortho-nitrochlorobenzene elevated dosing vessel（1）With sodium disulfide aqueous solution elevated dosing vessel（2）On spinner flowmeter and guarantor are installed Warm equipment.
- It is 3. according to claim 1 a kind of double（2- nitrobenzophenones）The preparation facilities of disulphide, it is characterised in that：It is described Tubular reactor（4）Material be stainless steel or glass material.
- It is 4. according to claim 1 a kind of double（2- nitrobenzophenones）The preparation facilities of disulphide, it is characterised in that：It is described The inlet port and outlet port of each device are equipped with stop valve.
- It is 5. according to claim 1 a kind of double（2- nitrobenzophenones）The preparation facilities of disulphide, it is characterised in that：It is described Tubular reactor（4）Material outlet and material-handling pump（6’）Between can configure material receiving tank.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721252623.3U CN207313483U (en) | 2017-09-27 | 2017-09-27 | It is a kind of double（2- nitrobenzophenones）The preparation facilities of disulphide |
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| CN201721252623.3U CN207313483U (en) | 2017-09-27 | 2017-09-27 | It is a kind of double（2- nitrobenzophenones）The preparation facilities of disulphide |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108863867A (en) * | 2018-07-18 | 2018-11-23 | 江西扬帆新材料有限公司 | The method of pipeline continuous production diphenyl sulfide |
| CN110841585A (en) * | 2019-10-14 | 2020-02-28 | 吴剑华 | Benzyl cyanide production device and use method thereof |
-
2017
- 2017-09-27 CN CN201721252623.3U patent/CN207313483U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108863867A (en) * | 2018-07-18 | 2018-11-23 | 江西扬帆新材料有限公司 | The method of pipeline continuous production diphenyl sulfide |
| CN110841585A (en) * | 2019-10-14 | 2020-02-28 | 吴剑华 | Benzyl cyanide production device and use method thereof |
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