CN212076417U

CN212076417U - Hydrogen peroxide purifier

Info

Publication number: CN212076417U
Application number: CN202020739002.3U
Authority: CN
Inventors: 司富强; 聂开云; 曹广侠
Original assignee: ZHENGZHOU HUIZE BIOCHEMICAL TECHNOLOGY CO LTD
Current assignee: ZHENGZHOU HUIZE BIOCHEMICAL TECHNOLOGY CO LTD
Priority date: 2020-05-08
Filing date: 2020-05-08
Publication date: 2020-12-04
Anticipated expiration: 2030-05-08

Abstract

The utility model discloses a hydrogen peroxide purifying device, which is used for removing organic impurities and inorganic impurities in hydrogen peroxide, purifying the hydrogen peroxide and improving the purity of the hydrogen peroxide, and relates to the technical field of hydrogen peroxide purification, the utility model comprises a precipitation purification cavity, an anion exchange resin purification cavity, a cation exchange resin purification cavity and a silicon powder adsorption purification cavity which are sequentially communicated from bottom to top, wherein a silicon powder filter core is arranged in the silicon powder adsorption purification cavity, a cation exchange resin filter core is arranged in the cation exchange resin purification cavity, an anion exchange resin filter core is arranged in the anion exchange resin purification cavity, an inclined plate is arranged in the precipitation purification cavity, a conveying pipeline is arranged at one side of the precipitation purification cavity, a blow-off port which can be opened or closed is arranged at the other side of the precipitation purification cavity, a valve is arranged on the conveying pipeline, and an exhaust port and a feed port are, this feed inlet and silica flour filter core intercommunication, the utility model discloses the compound mode is nimble, and is easy and simple to handle.

Description

Hydrogen peroxide purifier

Technical Field

The utility model provides a hydrogen peroxide purifier for organic impurity and inorganic impurity in cleaing away the hydrogen peroxide, purify the hydrogen peroxide, improve the purity of hydrogen peroxide, the utility model relates to a hydrogen peroxide purifies technical field.

Background

High-purity hydrogen peroxide is one of important chemicals in the electronic industry, and along with the gradual increase of industrial storage capacity in the electronic industry, the storage capacity of a storage battery needs to be increased as much as possible, so that an oxide film becomes thinner; inorganic impurities such as alkali metal in the high-purity hydrogen peroxide used as a cleaning agent, a corrosive agent and a photoresist remover are dissolved into the oxide film to reduce the insulation voltage resistance of the oxide film, and heavy metal impurities are attached to the surface of the silicon wafer to reduce the voltage resistance and the attachment of impurity molecules or ions, which is also a main cause of chemical failures such as corrosion or electric leakage; therefore, the metal ion inorganic acid radical ions, mechanical impurities and the like are strictly limited in the high-purity hydrogen peroxide, while the existing rectification method can produce for a long period by using a single set of equipment, the production is not limited, but the material consumption and the energy consumption are high, and the product purity is difficult to reach a high degree; the product with high concentration and high purity can be obtained by various adsorption methods such as flocculation method and crystallization method, but the energy consumption is high, and the development of hydrogen peroxide is limited.

Disclosure of Invention

The utility model aims to provide a: the hydrogen peroxide purification device is provided, impurities are removed by a resin reaction filtration method, multiple grades of products can be obtained, the occupied area of equipment is small, the combination mode is flexible, the operation is simple and convenient, and the purification purity is high.

The utility model adopts the technical scheme as follows: the utility model provides a hydrogen peroxide purifier, includes from supreme precipitation that communicates in proper order down and purifies chamber, anion exchange resin purification chamber, cation exchange resin purification chamber, silica flour absorption purification chamber, its characterized in that, silica flour absorption purification intracavity is provided with the silica flour filter core, and cation exchange resin purifies the intracavity and is provided with the cation exchange resin filter core, and anion exchange resin purifies the intracavity and is provided with the anion exchange resin filter core, and precipitation purification intracavity is provided with the swash plate, and this precipitation purifies chamber one side and is provided with pipeline, and the opposite side is provided with the drain that can open or close, pipeline is last to be provided with the valve, silica flour absorption purifies the top in chamber and is provided with gas vent and feed inlet, this feed inlet and silica flour filter core intercommunication.

The utility model discloses a theory of operation does: hydrogen peroxide is injected into the silicon powder filter element from the feed inlet, after iron and aluminum ions are adsorbed by the silicon powder filter element, the filter membrane enters the silicon powder adsorption purification cavity to obtain first purification liquid, the first purification liquid enters the cation exchange resin filter element through the liquid outlet to carry out resin exchange to obtain second purification liquid for reducing impurities, the second purification liquid enters the anion exchange resin filter element through the central through hole to carry out resin exchange to obtain third purification liquid, then the third purification liquid enters the precipitation purification cavity through the connecting port, the purified high-purity hydrogen peroxide is discharged and stored through the conveying pipeline after inclined plate precipitation, the top end of the silicon powder adsorption purification cavity is provided with an exhaust port for properly exhausting to prevent the explosion phenomenon caused by overlarge air pressure, and the precipitation purification cavity, the anion exchange resin purification cavity, the cation exchange resin purification cavity and the silicon powder adsorption purification cavity which are sequentially connected in an inserting manner, the junction is provided with the sealing ring, and 2 engaging lugs are set up to the equidistance on every lateral wall that purifies the chamber at least, it is more convenient to make the dismantlement, and nimble changeable, can assemble the purification chamber in a flexible way according to the demand, also can fill the anion of different concentration and brand, cation exchange resin or anion, cation mixed exchange resin, silica flour selection particle diameter is 1-20 millimeters silica flour, it is convenient to fill and change, moreover, the operation is simple, after filtering a period of time, need to change filter core filler and wash the purification chamber, each purifies the chamber separately to wash alone through the engaging lug, the bottom side that deposits the purification chamber is provided with the drain, abluent drain accessible drain discharges, other filter cores can be taken down and lay filter membrane and filler (anion exchange resin or cation exchange resin or silica flour) again.

The bottom edge of the silicon powder adsorption and purification cavity is provided with an inward shrinkage connecting end, a sealing ring is sleeved on the inward shrinkage connecting end, 2-4 connecting lugs are arranged on the side wall of the silicon powder adsorption and purification cavity at equal intervals, a liquid outlet is formed in the center of the bottom of the silicon powder adsorption and purification cavity, a filter element cover is arranged at the top of the silicon powder adsorption and purification cavity, the size of the filter element cover corresponds to that of the silicon powder filter element, and a through hole for a feed inlet to pass through; make the junction difficult for leaking through the sealing ring, the setting of engaging lug is easy to assemble and dismantles, and the setting of filter core lid is except can preventing that the filter core from polluting, still conveniently adds the filler.

The top of the cation exchange resin purification cavity is provided with a bearing end, the bottom of the cation exchange resin purification cavity is provided with an inserting end, 2-4 connecting lugs are arranged on the outer side of the wall in a radial direction at equal intervals, a filter element mounting concave edge is arranged at the position corresponding to the liquid outlet, a cation exchange resin filter element is mounted outside the filter element mounting concave edge, the bottom of the cation exchange resin purification cavity is provided with a central through hole, and the outer wall of the inserting end is sleeved with a sealing ring; the bearing end and the inserting end are matched for use, so that the installation and the disassembly are more convenient, and the cleaning and maintenance work is simplified.

The anion exchange resin purification cavity and the cation exchange resin purification cavity have the same structure, and the cation exchange resin filter element is replaced by an anion exchange resin filter element; the structure is the same, and the accessory is the same, can change in a flexible way, reduces the installation degree of difficulty.

The silicon powder filter element comprises a first convex edge, a first inner filter cylinder, silicon powder, a first filter membrane, a first outer filter cylinder and a connecting rod, wherein the first convex edge is connected with the top edge of the first outer filter cylinder; the silicon powder adsorbs iron and aluminum ions, even if the hydrogen peroxide aqueous solution adjusted to be alkalescent flows through the metal silicon powder with a clean surface, the metal ion impurities in the hydrogen peroxide can be removed, the silicon powder is firstly cleaned by ultrapure water before use, when the refining effect is reduced, the silicon powder is washed by the same method, the surface adsorption capacity is regenerated, the production consumption is reduced, the iron and aluminum ions in the hydrogen peroxide are firstly removed, the difficulty of resin crushing and decomposition at the back is improved, and the consumption of the hydrogen peroxide is reduced.

The cation exchange resin filter element comprises a second convex edge, a second inner filter cylinder, cation exchange resin, a second filter membrane, a second outer filter cylinder and a connecting rod, wherein the second convex edge is connected with the top edge of the second outer filter cylinder; the cation exchange resin has a mass concentration of each cation of less than 1 g/L.

The anion exchange resin filter element comprises a third convex edge, a third inner filter cylinder, anion exchange resin, a third filter membrane, a third outer filter cylinder and a connecting rod, wherein the third convex edge is connected with the top edge of the third outer filter cylinder; the anion exchange resin adopts the anion exchange resin containing acetate, the concentration of anion in the anion is lower than 10gL, and the concentration of each metal ion in the final product can be ensured to be lower than 0.5 gL.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

the utility model adsorbs iron and aluminum ions in hydrogen peroxide through the silicon powder filter element, then combines and purifies through the cation exchange resin filter element and the anion exchange resin filter element, and finally obtains high-purity hydrogen peroxide through inclined plate precipitation; the utility model discloses an each purifies the chamber and can dismantle the connection, can make up in a flexible way, can obtain multiple rank product according to the difference of compound mode, and is easy and simple to handle, and the energy consumption is low.

Drawings

The invention will now be described, by way of example, with reference to the accompanying drawings, in which:

fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic top view of the structure of FIG. 1;

FIG. 3 is a schematic view of the structure of the silica powder adsorption purification chamber of the present invention;

FIG. 4 is a schematic structural view of a cation exchange resin purification chamber of the present invention;

FIG. 5 is a schematic view of the structure of the silica powder filter element of the present invention;

FIG. 6 is a schematic view of the structure of the cation exchange resin filter element of the present invention;

FIG. 7 is a schematic view of the anion exchange resin filter element of the present invention;

FIG. 8 is a schematic top view of the structure of FIG. 7;

labeled as: 1-precipitation purification cavity, 2-anion exchange resin purification cavity, 3-cation exchange resin purification cavity, 4-silica powder adsorption purification cavity, 5-exhaust port, 6-feed port, 7-sewage discharge port, 8-conveying pipeline, 9-valve, 10-inclined plate, 11-connecting port, 12-sealing ring, 13-connecting lug, 21-anion exchange resin filter element, 31-cation exchange resin filter element, 32-filter element mounting concave edge, 33-central through hole, 34-receiving end, 35-inserting end, 41-silica powder filter element, 42-filter element cover, 43-liquid outlet, 44-retraction connecting end, 411-first convex edge, 412-first inner filter cylinder, 413-silica powder, 414-first filter membrane, 415-first outer cartridge, 311-second ledge, 312-second inner cartridge, 313-cation exchange resin, 314-second filter membrane, 315-second outer cartridge, 211-third ledge, 212-third inner cartridge, 213-anion exchange resin, 214-third filter membrane, 215-third outer cartridge, 216-tie rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

As shown in fig. 1-8, a hydrogen peroxide purifying device comprises a precipitation purifying cavity 1, an anion exchange resin purifying cavity 2, a cation exchange resin purifying cavity 3, and a silicon powder adsorption purifying cavity 4 which are sequentially communicated from bottom to top, it is characterized in that a silicon powder filter element 41 is arranged in the silicon powder adsorption purification cavity 4, a cation exchange resin filter element 31 is arranged in the cation exchange resin purification cavity 3, an anion exchange resin filter element 21 is arranged in the anion exchange resin purification cavity 2, an inclined plate 10 is arranged in the precipitation purification cavity 1, one side of the precipitation purification cavity 1 is provided with a conveying pipeline 8, the other side is provided with a sewage discharge outlet 7 which can be opened or closed, the conveying pipeline 8 is provided with a valve 9, the top of the silicon powder adsorption purification cavity 4 is provided with an exhaust port 5 and a feed port 6, and the feed port 6 is communicated with a silicon powder 413 filter element 41.

The utility model discloses a theory of operation does: injecting hydrogen peroxide into a silicon powder filter element 41 from a feed inlet 6, adsorbing iron and aluminum ions through the silicon powder filter element 41, allowing a filter membrane to enter a silicon powder adsorption purification cavity 4 to obtain a first purification solution, allowing the first purification solution to enter a cation exchange resin filter element 31 through a liquid outlet 43 for resin exchange to obtain a second purification solution for reducing impurities, allowing the second purification solution to enter an anion exchange resin filter element 21 through a central through hole 33 for resin exchange to obtain a third purification solution, allowing the third purification solution to enter a precipitation purification cavity 1 through a connecting port 11, precipitating through an inclined plate 10, discharging and storing purified high-purity hydrogen peroxide through a conveying pipeline 8, arranging an exhaust port 5 at the top end of the silicon powder adsorption purification cavity 4, properly exhausting air to prevent explosion phenomenon caused by excessive air pressure, and sequentially connecting the precipitation purification cavity 1, the anion exchange resin purification cavity 2, the cation exchange resin purification cavity 3, The silicon powder adsorption purification cavities 4 are connected in an inserting way, the connection part is provided with a sealing ring 12, and the side wall of each purification cavity is provided with at least 2 connecting lugs 13 at equal intervals, so that the disassembly is more convenient and flexible, the purification cavity can be flexibly assembled according to the requirement, and also can be filled with anion and cation exchange resin 313 or anion and cation mixed exchange resin with different concentrations and brands, the silica powder 413 with the particle size of 1-20 mm is selected as the silica powder 413, the filling and the replacement are convenient, the operation is simple, after filtering for a period of time, the filter element filler needs to be replaced and the purification cavity needs to be cleaned, the purification chambers can be separately cleaned by connecting lugs 13, the bottom side of the precipitation purification chamber 1 is provided with a sewage discharge outlet 7, the cleaned sewage discharge outlet can be discharged through the sewage discharge outlet 7, and other filter elements can be removed to lay the filter membrane and the filler (namely anion exchange resin or cation exchange resin or silicon powder) again.

Example 2

On the basis of embodiment 1, the bottom edge of the silicon powder adsorption and purification cavity 4 is provided with an inward-shrinkage connecting end 44, the inward-shrinkage connecting end is sleeved with a sealing ring 12, the side wall of the silicon powder adsorption and purification cavity 4 is provided with 2-4 connecting lugs 13 at equal intervals, the center of the bottom is provided with a liquid outlet 43, the top is provided with a filter element cover 42, the size of the filter element cover 42 corresponds to that of the silicon powder filter element 41, and the middle of the filter element cover is provided with a through hole through which the feed inlet 6 can pass; make the junction difficult for leaking through sealing ring 12, the setting of engaging lug 13 is easy to assemble and is dismantled, and filter core lid 42's setting is except can preventing that the filter core from polluting, still conveniently adds the filler.

Example 3

On the basis of embodiment 2, the top of the cation exchange resin purification cavity 3 is provided with a receiving end 34, the bottom is provided with an inserting end 35, the outer side of the wall is provided with 2-4 connecting lugs 13 at equal intervals in the radial direction, a filter element mounting concave edge 32 is arranged at the position corresponding to the liquid outlet 43, a cation exchange resin filter element 31 is mounted outside the filter element mounting concave edge 32, the bottom of the cation exchange resin purification cavity 3 is provided with a central through hole 33, and the outer wall of the inserting end 35 is sleeved with a sealing ring 12; the bearing end 34 and the inserting end 35 are matched for use, so that the installation and the disassembly are more convenient, and the cleaning and maintenance work is simplified.

Example 4

On the basis of the embodiment 3, the anion exchange resin purification cavity 2 and the cation exchange resin purification cavity 3 have the same structure, and the cation exchange resin filter element 31 is replaced by an anion exchange resin filter element 21; the structure is the same, and the accessory is the same, can change in a flexible way, reduces the installation degree of difficulty.

Example 5

On the basis of embodiment 1, the silicon powder filter element 41 includes a first convex edge 411, a first inner filter cylinder 412, silicon powder 413, a first filter membrane 414, a first outer filter cylinder 415, and a connecting rod 216, the first convex edge 411 is connected to a top edge of the first outer filter cylinder 415, the first filter membrane 414 is laid on an inner side wall, a bottom wall, and the first convex edge 411 of the first outer filter cylinder 415, the first inner filter cylinder 412 is detachably connected to the first convex edge 411 through the connecting rod 216, and the silicon powder 413 is filled between the first inner filter cylinder 412 and the first filter membrane 414; the silicon powder 413 adsorbs iron and aluminum ions, even though the hydrogen peroxide water solution adjusted to be slightly alkaline flows through the metal silicon powder 413 with a clean surface, the metal ion impurities in the hydrogen peroxide can be removed, the silicon powder 413 is washed by ultrapure water before being used, when the refining effect is reduced, the silicon powder 413 is washed by the same method, the surface adsorption capacity is regenerated, the production consumption is reduced, the iron and aluminum ions in the hydrogen peroxide are removed firstly, the difficulty of resin crushing and decomposition in the later process is improved, and the consumption of the hydrogen peroxide is reduced.

Example 6

On the basis of embodiment 1, the cation exchange resin filter element 31 comprises a second convex edge 311, a second inner filter cartridge 312, cation exchange resin 313, a second filter membrane 314, a second outer filter cartridge 315 and a connecting rod 216, wherein the second convex edge 311 is connected with the top edge of the second outer filter cartridge 315, the second filter membrane 314 is laid on the inner side wall, the bottom wall and the second convex edge 311 of the second outer filter cartridge 315, the second inner filter cartridge 312 is detachably connected with the second convex edge 311 through the connecting rod 216, and the cation exchange resin 313 is filled between the second inner filter cartridge 312 and the second filter membrane 314; the cation exchange resin 313 has a cation concentration of less than 1g/L in each cation species.

Example 7

On the basis of embodiment 1, the anion exchange resin filter element 21 comprises a third convex edge 211, a third inner filter cartridge 212, anion exchange resin 213, a third filter membrane 214, a third outer filter cartridge 215, and a connecting rod 216, wherein the third convex edge 211 is connected with the top edge of the third outer filter cartridge 215, the third filter membrane 214 is laid on the inner side wall, the bottom wall, and the third convex edge 211 of the third outer filter cartridge 215, the third inner filter cartridge 212 is detachably connected with the third convex edge 211 through the connecting rod 216, and the anion exchange resin 213 is filled between the third inner filter cartridge 212 and the third filter membrane 214; the anion exchange resin 213 is an anion exchange resin 213 containing acetate, and the concentration of anion in the anion is lower than 10gL, so that the concentration of each metal ion in the final product can be ensured to be lower than 0.5 gL.

The above description is only for the preferred embodiment of the present invention, and the present invention is not limited thereto, the protection scope of the present invention is defined by the claims, and all structural changes equivalent to the contents of the description and drawings of the present invention should be included in the protection scope of the present invention.

Claims

1. A hydrogen peroxide purification device comprises a precipitation purification cavity (1), an anion exchange resin purification cavity (2), a cation exchange resin purification cavity (3) and a silicon powder adsorption purification cavity (4) which are sequentially communicated from bottom to top, and is characterized in that a silicon powder filter core (41) is arranged in the silicon powder adsorption purification cavity (4), a cation exchange resin filter core (31) is arranged in the cation exchange resin purification cavity (3), an anion exchange resin filter core (21) is arranged in the anion exchange resin purification cavity (2), an inclined plate (10) is arranged in the precipitation purification cavity (1), a conveying pipeline (8) is arranged on one side of the precipitation purification cavity (1), a drain outlet (7) which can be opened or closed is arranged on the other side of the precipitation purification cavity (1), a valve (9) is arranged on the conveying pipeline (8), an exhaust port (5) and a feed port (6) are arranged at the top of the silicon powder adsorption, the feed inlet (6) is communicated with the silicon powder filter element (41).

2. The hydrogen peroxide purification device according to claim 1, wherein the bottom edge of the silicon powder adsorption and purification cavity (4) is provided with a retraction connecting end (44) which is sleeved with a sealing ring (12), the side wall of the silicon powder adsorption and purification cavity (4) is equidistantly provided with 2-4 connecting lugs (13), the center of the bottom is provided with a liquid outlet (43), the top is provided with a filter element cover (42), the size of the filter element cover (42) corresponds to that of the silicon powder filter element (41), and the middle of the filter element cover is provided with a through hole which can enable the feed port (6) to pass through.

3. The hydrogen peroxide purification device according to claim 2, wherein the top of the cation exchange resin purification cavity (3) is provided with a receiving end (34), the bottom of the cation exchange resin purification cavity is provided with a plugging end (35), the outer side of the wall is provided with 2-4 connecting lugs (13) at equal intervals in the radial direction, a filter element mounting concave edge (32) is arranged at the position corresponding to the liquid outlet (43), the cation exchange resin filter element (31) is mounted outside the filter element mounting concave edge (32), the bottom of the cation exchange resin purification cavity (3) is provided with a central through hole (33), and the outer wall of the plugging end (35) is sleeved with a sealing ring (12).

4. A hydrogen peroxide purification apparatus according to claim 3, wherein the anion exchange resin purification chamber (2) and the cation exchange resin purification chamber (3) have the same structure, and the cation exchange resin cartridge (31) is replaced by the anion exchange resin cartridge (21).

5. The hydrogen peroxide purification device according to claim 1, wherein the silicon powder filter element (41) comprises a first convex edge (411), a first inner filter cartridge (412), silicon powder (413), a first filter membrane (414), a first outer filter cartridge (415) and a connecting rod (216), the first convex edge (411) is connected with the top edge of the first outer filter cartridge (415), the first filter membrane (414) is laid on the inner side wall, the bottom wall and the first convex edge (411) of the first outer filter cartridge (415), the first inner filter cartridge (412) is detachably connected with the first convex edge (411) through the connecting rod (216), and the silicon powder (413) is filled between the first inner filter cartridge (412) and the first filter membrane (414).

6. The hydrogen peroxide purification device as claimed in claim 1, wherein the cation exchange resin filter element (31) comprises a second convex edge (311), a second inner filter cartridge (312), a cation exchange resin (313), a second filter membrane (314), a second outer filter cartridge (315) and a connecting rod (216), the second convex edge (311) is connected with the top edge of the second outer filter cartridge (315), the second filter membrane (314) is laid on the inner side wall, the bottom wall and the second convex edge (311) of the second outer filter cartridge (315), the second inner filter cartridge (312) is detachably connected with the second convex edge (311) through the connecting rod (216), and the cation exchange resin (313) is filled between the second inner filter cartridge (312) and the second filter membrane (314).

7. The hydrogen peroxide purification device according to claim 1, wherein the anion exchange resin filter element (21) comprises a third convex edge (211), a third inner filter cartridge (212), anion exchange resin (213), a third filter membrane (214), a third outer filter cartridge (215), and a connecting rod (216), the third convex edge (211) is connected with the top edge of the third outer filter cartridge (215), the third filter membrane (214) is laid on the inner side wall, the bottom wall, and the third convex edge (211) of the third outer filter cartridge (215), the third inner filter cartridge (212) is detachably connected with the third convex edge (211) through the connecting rod (216), and the anion exchange resin (213) is filled between the third inner filter cartridge (212) and the third filter membrane (214).