CN204982067U - Fluoridize electrolysis trough - Google Patents

Abstract

The utility model relates to a fluoridize electrolysis trough, it restraints to press from both sides cover, electrode post and electrode including electrolysis trough, draft tube, electrolysis trough, be provided with the electrolysis trough apron on the electrolysis trough, the electrolysis trough presss from both sides the cover and sets up around the electrolysis trough outside, the electrolysis trough presss from both sides the cover and sets up refrigerant import and refrigerant outlet, the refrigerant import sets up presss from both sides the cover upper end at the electrolysis trough, refrigerant outlet sets up and presss from both sides the cover lower extreme at the electrolysis trough, and the refrigerant that presss from both sides the electrolysis trough in the cover gets into the bottom play from the upper end that the electrolysis trough pressed from both sides the cover for the temperature is hanged down above the inside electrolyte of electrolysis trough, and now the temperature is higher, because above -mentioned electrolyte temperature is low, the relative ratio is important big, and the electrolyte that the temperature is low sinks, and now higher electrolyte floats, and consequently, electrolyte forms an inner loop at the inslot, makes inslot electrolyte temperature more even, and the electrolytic efficiency is higher.

Description

A kind of fluorination electrolytic cell

Technical field

This practicality relates to the technical field of the electrolyzer of Organic Electrochemical Synthesis, particularly relates to a kind of fluorination electrolytic cell.

Background technology

Organic fluorocompound nature exists few, how fluorine to be introduced in organism the problem becoming people and be badly in need of solving, the preparation of organic fluoride directly can be fluoridized with F2, the method also indirectly can fluoridized with fluorination reagents such as XeF2, Hydroxyl fluoride, high-valence metal fluoride, N2F compounds.These electrochemical fluorination methods, react and operate all more complicated, the equipment of needs is harsher; The fluorination reagent toxicity used is high or be absolutely unsafe, and what have is very expensive; And wayward fluorine adding content, be difficult to obtain target product.Therefore, people have to seek other method.Nineteen forty-one, Americanized scholar Simons invented electrochemical fluorination (ECF) method, produce perfluor or partially fluorinated organic compound, such as full-fluorine octyl sulfuryl fluoride, perfluoro butyl sulfonic acid fluoride, perfluoro triethylamine etc., its invention, the preparation for fluorocarbon opens a brand-new and marvellous approach.Initial Simons method has alternately installed one group of nickel anode and iron cathode pole plate in the steel electrolyzer of rectangle or circle, and add anhydrous hydrogen fluoride and a small amount of organism, logical direct current carries out electrolysis.Electrolyzer external application cooling jacket removes the heat produced in electrolytic process.Usual bath voltage is 5V-8V, and current density is greater than 500A/dm2, and temperature range is 0 DEG C-9 DEG C.With this understanding, F2 can not overflow, and fluorinated product then generates at anode.The fluorochemical generated, owing to being insoluble to anhydrous hydrogen fluoride, or is deposited on bottom of electrolytic tank, or evaporates in cold-trap in gas phase and be collected.But traditional electrolyzer has following shortcoming: 1, in existing fluorination electrolytic cell, chilled brine in external jacket generally enters bottom chuck, on bring out, make electrolyte bath non-uniform temperature, electrolysis effectiveness is not good, 2, the HF in groove does not flow, be dissolved in ionogen in HF and pole plate contact probability little, therefore electrofluorination reaction efficiency is low; Reaction electrofluorination decomposition induction time is long, is generally 3 days-5 days, and dead groove phenomenon is comparatively frequent, and after making alive, no current inputs.

Utility model content

In order to solve the technical problem of above-mentioned existence, the utility model provides a kind of fluorination electrolytic cell, and concrete technical scheme is:

A kind of fluorination electrolytic cell, it is characterized in that: comprise electrolyzer, guide shell, electrolyzer chuck, electrode column and electrode bundle, described electrolyzer is provided with reduction cell cover plate, electrolyzer arranges discharge port and opening for feed, discharge outlet arranges bleeder valve, described reduction cell cover plate is provided with whipping appts, described whipping appts comprises stir shaft and is set in the stirring frame on described stir shaft, described stirring frame is made up of with the vertical agitator arm being connected to described arc agitator arm two ends the agitator arm of arc, the tilting stirring rake of polylith is provided with between two described vertical agitator arms, reduction cell cover plate is passed by shaft seal in the upper end of described stir shaft, described stir shaft upper end is connected with shaft coupling and motor, described guide shell is fixed on reduction cell cover plate, bottom described guide shell, blind plate is set, in the middle of blind plate, axle sleeve is set, described stir shaft is positioned at guide shell, in described electrolyzer, electrode bundle is set, described electrode column is fixed on reduction cell cover plate after being connected with the electrode bundle in electrolyzer, described electrode column and cover plate insulating washer separate, electrode column comprises positive pole and negative pole, the positive pole of described electrode column positive pole and the corresponding connection electrode bundle of negative pole and negative pole, electrode bundle is nickel positive pole conveniently, iron negative pole is alternately arranged, just, insulating trip is adopted to separate between negative pole, electrode bundle is between guide shell outer wall and electrolyzer inwall, evenly arrange around guide shell, described electrolyzer chuck is arranged on the outside surrounding of electrolyzer, described electrolyzer chuck arranges refrigerant import and refrigerant exit, described refrigerant import is arranged on electrolyzer chuck upper end, described refrigerant exit is arranged on electrolyzer chuck lower end, a venting port is provided with on the left of described electrolyzer chuck.

Further: what described refrigerant import was placed is chilled brine or organic refrigerant.

Further: described electrolyzer and reduction cell cover plate are circular or rectangular configuration, described electrode bundle is around the outer wall circular of guide shell, evenly arrangement two groups, three groups or multi-group electrode bundle, the pole plate arrangement centerline direction of electrode bundle is consistent with the normal of guide shell, described reduction cell cover plate sets out gas port, outside described electrolyzer chuck, thermal insulation layer is set.

The compared with prior art acquired technique effect of the utility model is: entered the upper end of the refrigerant in electrolyzer chuck from electrolyzer chuck, bottom goes out, and make electrolyte bath electrolytic solution overhead temperature low, lower surface temperature is higher, because electrolyte temperature is low above, compare greatly important, the electrolytic solution that temperature is low sinks, and electrolytic solution higher below floats, therefore, electrolytic solution forms an internal recycle in groove, and make groove electrolyte inside temperature more even, electrolytic efficiency is higher.

Whipping appts is provided with in addition in electrolyzer, the tilting stirring rake of polylith is provided with between two agitator arms stirring frame, between the plate face of stirring rake and horizontal plane, the angle of angle is 55 degree ~ 65 degree, material in reactor can fully be uniformly mixed, material is dissolved in whole system and disperse evenly, carry out fluoridation in a cell simultaneously, decrease decomposition induction time, decomposition induction time reduced to one day from 3-5 days, also dead groove phenomenon has substantially been stopped, reduce the number of times of the clear groove because of handling dead groove, adopt shunt slot former annual dead groove 3-4 time, after adopting shunt slot of the present invention, there is not dead groove phenomenon, reduce supplies consumption more than 20%, single groove output increased 30%, the polymkeric substance generated in electrolyzer reduces, clear groove time lengthening one times, alleviate artificial clear groove labour intensity.

Accompanying drawing explanation

Fig. 1 is the structural representation of the utility model fluorination electrolytic cell.

Embodiment

Below in conjunction with accompanying drawing 1, the utility model is described.

A kind of fluorination electrolytic cell shown in Fig. 1, comprise electrolyzer 1, guide shell 2, electrolyzer chuck 3, electrode column 4 and electrode bundle 5, described electrolyzer 1 is provided with reduction cell cover plate 6, electrolyzer 1 arranges discharge port 7 and opening for feed 8, discharge port 7 place arranges bleeder valve 9, described reduction cell cover plate 6 is provided with whipping appts, the stirring frame 11 that described whipping appts comprises stir shaft 10 and is set on described stir shaft, described stirring frame 11 is made up of with the vertical agitator arm being connected to described arc agitator arm two ends the agitator arm of arc, the tilting stirring rake of polylith 12 is provided with between two described vertical agitator arms, reduction cell cover plate 6 is passed by shaft seal 13 in the upper end of described stir shaft 10, described stir shaft 10 upper end is connected with shaft coupling 14 and motor 15, described guide shell 2 is fixed on reduction cell cover plate 6, bottom described guide shell 2, blind plate 16 is set, in the middle of blind plate 16, axle sleeve 17 is set, described stir shaft 10 is positioned at guide shell 2, in described electrolyzer 1, electrode bundle 5 is set, described electrode column 4 is fixed on reduction cell cover plate 6 after being connected with the electrode bundle 5 in electrolyzer 1, described electrode column 4 separates with reduction cell cover plate 6 insulating washer 18, electrode column 4 comprises positive pole and negative pole, the positive pole of described electrode column 4 positive pole and the corresponding connection electrode bundle 5 of negative pole and negative pole, electrode bundle 5 is nickel positive pole conveniently, iron negative pole is alternately arranged, just, insulating trip is adopted to separate between negative pole, electrode bundle 5 is between guide shell 2 outer wall and electrolyzer 1 inwall, evenly arrange around guide shell 2, described electrolyzer chuck 3 is arranged on the outside surrounding of electrolyzer 1, described electrolyzer chuck 3 arranges refrigerant import 19 and refrigerant exit 20, described refrigerant import 19 is arranged on electrolyzer chuck 3 upper end, described refrigerant exit 20 is arranged on electrolyzer chuck 3 lower end, a venting port 22 is provided with on the left of described electrolyzer chuck.

What described refrigerant import 19 was placed is chilled brine or organic refrigerant.

Described electrolyzer 1 and reduction cell cover plate 6 are circular or rectangular configuration, described electrode bundle 5 is around the outer wall circular of guide shell 2, evenly arrangement two groups, three groups or multi-group electrode bundle 5, the pole plate arrangement centerline direction of electrode bundle 5 is consistent with the normal of guide shell 2, arranges thermal insulation layer 21 outside described electrolyzer chuck 3.

Venting port 22 on the left of described electrolyzer chuck is all connected salt solution return pipe 23 with refrigerant exit 20.

The upper end of refrigerant in electrolyzer chuck from electrolyzer chuck enters by the utility model, bottom goes out, and make electrolyte bath electrolytic solution overhead temperature low, lower surface temperature is higher, because electrolyte temperature is low above, compare greatly important, the electrolytic solution that temperature is low sinks, and electrolytic solution higher below floats, therefore, electrolytic solution forms an internal recycle in groove, and make groove electrolyte inside temperature more even, electrolytic efficiency is higher.

Whipping appts is provided with in addition in electrolyzer, the tilting stirring rake of polylith is provided with between two agitator arms stirring frame, between the plate face of stirring rake and horizontal plane, the angle of angle is 55 degree ~ 65 degree, material in reactor can fully be uniformly mixed, material is dissolved in whole system and disperse evenly, carry out fluoridation in a cell simultaneously, decrease decomposition induction time, decomposition induction time reduced to one day from 3-5 days, also dead groove phenomenon has substantially been stopped, reduce the number of times of the clear groove because of handling dead groove, adopt shunt slot former annual dead groove 3-4 time, after adopting shunt slot of the present invention, there is not dead groove phenomenon, reduce supplies consumption more than 20%, single groove output increased 30%, the polymkeric substance generated in electrolyzer reduces, clear groove time lengthening one times, alleviate artificial clear groove labour intensity.

The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model know-why; can also make some improvement and modification, these improve and modification also should be considered as protection domain of the present utility model.

Claims (3)

1. a fluorination electrolytic cell, it is characterized in that: comprise electrolyzer, guide shell, electrolyzer chuck, electrode column and electrode bundle, described electrolyzer is provided with reduction cell cover plate, electrolyzer arranges discharge port and opening for feed, discharge outlet arranges bleeder valve, described reduction cell cover plate is provided with whipping appts, described whipping appts comprises stir shaft and is set in the stirring frame on described stir shaft, described stirring frame is made up of with the vertical agitator arm being connected to described arc agitator arm two ends the agitator arm of arc, the tilting stirring rake of polylith is provided with between two described vertical agitator arms, reduction cell cover plate is passed by shaft seal in the upper end of described stir shaft, described stir shaft upper end is connected with shaft coupling and motor, described guide shell is fixed on reduction cell cover plate, bottom described guide shell, blind plate is set, in the middle of blind plate, axle sleeve is set, described stir shaft is positioned at guide shell, in described electrolyzer, electrode bundle is set, described electrode column is fixed on reduction cell cover plate after being connected with the electrode bundle in electrolyzer, described electrode column and cover plate insulating washer separate, electrode column comprises positive pole and negative pole, the positive pole of described electrode column positive pole and the corresponding connection electrode bundle of negative pole and negative pole, electrode bundle is nickel positive pole conveniently, iron negative pole is alternately arranged, just, insulating trip is adopted to separate between negative pole, electrode bundle is between guide shell outer wall and electrolyzer inwall, evenly arrange around guide shell, described electrolyzer chuck is arranged on the outside surrounding of electrolyzer, described electrolyzer chuck arranges refrigerant import and refrigerant exit, described refrigerant import is arranged on electrolyzer chuck upper end, described refrigerant exit is arranged on electrolyzer chuck lower end, a venting port is provided with on the left of described electrolyzer chuck.

2. fluorination electrolytic cell according to claim 1, is characterized in that: what described refrigerant import was placed is chilled brine or organic refrigerant.

3. fluorination electrolytic cell according to claim 1, it is characterized in that: described electrolyzer and reduction cell cover plate are circular or rectangular configuration, described electrode bundle is around the outer wall circular of guide shell, evenly arrangement two groups, three groups or multi-group electrode bundle, the pole plate arrangement centerline direction of electrode bundle is consistent with the normal of guide shell, described reduction cell cover plate sets out gas port, outside described electrolyzer chuck, thermal insulation layer is set.