Device for separating foreign ions in chlorosilane solution
By using a combination device of electrodes and cellulose films in chlorosilane solution, the problems of time spent in the evaporation and drying process and impurity loss in the prior art are solved, and fast and accurate detection results are achieved, improving Test efficiency.
Patent Information
- Application Number
- CN202421170588.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-27
- Publication Date
- 2025-01-17
- Estimated Expiration
- 2034-05-27
AI Technical Summary
In the prior art, when detecting impurities in chlorosilane solution, the evaporation and drying process takes a long time and is prone to loss of impurities, and new impurities are easily introduced when operating in an open environment, resulting in poor inaccuracy and repeatability of the detection data.
A device including a separation body, a first electrode member, a second electrode member and a filter assembly is designed, and a cellulose film is used to selectively separate impurity ions under the action of the electrode, avoid sample contamination and impurity loss, and improve detection efficiency.
It realizes rapid separation of impurities in the sample, ensures the accuracy and stability of the detection data, improves detection efficiency, and avoids contamination and impurity losses during sample pretreatment.
Smart Images
Figure CN222358263U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of polysilicon production, in particular to a device for separating impurity ions in a chlorosilane solution. Background Art
[0002] At present, in the detection of impurities in chlorosilane, a fixed amount of chlorosilane is first added to a clean crucible, and then an appropriate amount of complexing agent and water are added in sequence to generate silicon dioxide; then hydrofluoric acid is added to dissolve the silicon dioxide, and then it is placed in a graphite furnace and evaporated with an electric heating plate. After evaporation, the residue is dissolved with nitric acid, and the volume is fixed with ultrapure water. Finally, the impurity elements are quantitatively analyzed by inductively coupled plasma optical emission spectroscopy (ICP-OES). Since the current method for detecting impurity elements requires the solution to be evaporated, the process consumes a lot of time, and this process is accompanied by volatilization, and impurities are easily lost; at the same time, experiments in an open environment will introduce new impurities, resulting in poor accuracy and repeatability of the detection data. Utility Model Content
[0003] In view of this, the utility model provides a device for separating impurity ions in chlorosilane solutions. The main purpose is to quickly separate impurities in samples, avoid sample contamination and impurity loss during sample pretreatment, and improve detection efficiency while ensuring accurate and stable detection data.
[0004] In order to achieve the above purpose, the utility model mainly provides the following technical solutions:
[0005] The embodiment of the utility model provides a device for separating impurity ions in a chlorosilane solution, comprising: a separation body, a first electrode component, a second electrode component and a filter assembly;
[0006] The separation body has a fluid channel therein;
[0007] One end of the separation body has a material port 1; the material port 1 is connected to the fluid channel;
[0008] The other end of the separation body is provided with a second material port; the second material port is communicated with the fluid channel;
[0009] The first electrode member is disposed on the separation body and is located at one end of the fluid channel;
[0010] The second electrode member is disposed on the separation body and is located at the other end of the fluid channel;
[0011] The filter assembly comprises: a support member and a cellulose membrane;
[0012] The support member is detachably arranged on the separation body;
[0013] The cellulose membrane is detachably disposed on the support member and fixed by the support member for filtering the liquid in the fluid channel.
[0014] Further, the support member includes: a tube structure 1 and a tube structure 2;
[0015] The outer wall of the tube structure 1 has an external thread structure; the tube structure 1 is connected to the fluid channel through threads;
[0016] The outer wall of the second tube structure has an external thread structure; the second tube structure is connected to the fluid channel through threads;
[0017] The cellulose film is arranged between the first tube structure and the second tube structure, and is squeezed and fixed by the first tube structure and the second tube structure.
[0018] Furthermore, the support member is a rectangular frame structure; the support member can be inserted into the separation body;
[0019] The cellulose film is clamped on the supporting member.
[0020] Further, the support member is a grid plate structure;
[0021] There are two supporting members; the two supporting members are overlapped with each other to clamp the cellulose film.
[0022] Furthermore, the supporting member is made of polytetrafluoroethylene profile.
[0023] Further, it also includes: a power supply;
[0024] The power source is connected to the first electrode member and the second electrode member.
[0025] By means of the above technical solution, the device for separating impurity ions in chlorosilane solution of the utility model has at least the following advantages:
[0026] It can quickly separate impurities in samples, avoid sample contamination and impurity loss during sample pretreatment, and improve detection efficiency while ensuring accurate and stable test data.
[0027] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1A schematic diagram of a device for separating impurity ions in a chlorosilane solution provided in an embodiment of the utility model;
[0029] Figure 2 A schematic diagram of a device for separating impurity ions in a chlorosilane solution provided in an embodiment of the utility model;
[0030] Figure 3 A schematic diagram of a device for separating impurity ions in a chlorosilane solution provided in an embodiment of the utility model.
[0031] As shown in the figure:
[0032] 1 is a separation body, 1-1 is a material port 1, 1-2 is a material port 2, 2 is a first electrode component, 3 is a second electrode component, 4 is a filter assembly, 4-1 is a support component, and 4-2 is a cellulose membrane. DETAILED DESCRIPTION
[0033] In order to further explain the technical means and effects adopted by the utility model to achieve the predetermined utility model purpose, the specific implementation methods, structures, features and effects of the utility model application are described in detail below in conjunction with the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "embodiment" does not necessarily refer to the same embodiment. In addition, specific features, structures, or characteristics in one or more embodiments may be combined in any suitable form.
[0034] like Figure 1 As shown, an embodiment of the utility model proposes a device for separating impurity ions in a chlorosilane solution, comprising: a separation body 1, a first electrode member 2, a second electrode member 3 and a filter assembly 4; the separation body 1 is preferably a material that is not easily corroded by hydrofluoric acid. This embodiment is preferably a polytetrafluoroethylene tube. The separation body 1 has a fluid channel for the flow of the separated solution; one end of the separation body 1 has a material port 1-1; the material port 1-1 is connected to the fluid channel for adding a solution; the other end of the separation body 1 has a material port 2-2; the material port 2-2 is connected to the fluid channel for adding a solution. The first electrode member 2 is arranged on the separation body 1, located at one end of the fluid channel; the second electrode member 3 is arranged on the separation body 1, located at the other end of the fluid channel; under the action of the first electrode member 2 and the second electrode member 3, the impurity ions in the solution are directed to move and are adsorbed by the membrane. When the separation is specifically implemented, a nitric acid solution is injected into the negative electrode side of the fluid channel; and a chlorosilane solution is injected into the positive electrode side of the fluid channel.
[0035] The filter assembly 4 includes: a support member 4-1 and a cellulose membrane 4-2; the support member 4-1 is detachably disposed on the separation body 1 for easy disassembly. The cellulose membrane 4-2 is detachably disposed on the support member 4-1 and fixed by the support member 4-1 for filtering the liquid in the fluid channel.
[0036] An embodiment of the utility model proposes a device for separating impurity ions in a chlorosilane solution, which can achieve the advantage of selective separation of ions of different valence states in the impurity ions, and selectively separate the compounds in the chlorosilane solution by adsorbing the ions using a cellulose membrane 4-2; it can quickly separate impurities in the sample, avoid sample contamination and impurity loss during sample pretreatment, and can improve detection efficiency while ensuring accurate and stable detection data.
[0037] As a preferred embodiment of the above, Figure 1 and Figure 2 As shown, the support member 4-1 includes: a tube structure 1 and a tube structure 2; the outer wall of the tube structure 1 has an external thread structure; the tube structure 1 is connected to the fluid channel through threads; the outer wall of the tube structure 2 has an external thread structure; the tube structure 2 is connected to the fluid channel through threads; the cellulose membrane 4-2 is arranged between the tube structure 1 and the tube structure 2, and is squeezed and fixed by the tube structure 1 and the tube structure 2, with a simple structure and convenient operation. The tube structure 1 and the tube structure 2 can cover the entire fluid channel or partially cover it.
[0038] Alternatively, if Figure 3 As shown, the support member 4-1 is a rectangular frame structure; the support member 4-1 can be inserted into the separation body 1; the cellulose membrane 4-2 is clamped on the support member 4-1, and the support member 4-1 can be inserted in the middle of the fluid channel to achieve filtration of the solution, and the operation is quick and convenient.
[0039] Alternatively, the support member 4-1 is a grid plate structure; there are two support members 4-1; the two support members 4-1 are superimposed on each other to clamp the cellulose film 4-2, which has a simple structure and can stably and reliably fix the cellulose film 4-2.
[0040] As a preferred embodiment of the above embodiment, the support member 4 - 1 is made of polytetrafluoroethylene profile, which is corrosion-resistant and avoids the influence of corrosion on detection.
[0041] As a preferred embodiment of the above-mentioned embodiment, an embodiment of the utility model proposes a device for separating impurity ions in a chlorosilane solution, which also includes: a power supply; the power supply is connected to the first electrode component 2 and the second electrode component 3, and is used to supply power to the first electrode component 2 and the second electrode component 3; the power supply is preferably a constant voltage power supply.
[0042] An embodiment of the utility model provides a device for separating impurity ions in a chlorosilane solution, which is simple and convenient to implement, has no harmful pollution to the environment, and has a good separation effect.
[0043] Further explanation, although the terms first, second, etc. can be used to describe various elements in this article, these terms should not limit these elements. These terms are only used to distinguish one element from another element. For example, the first element can be called the second element, and, similarly, the second element can be called the first element, and these terms are only used to distinguish one element from another element. This does not depart from the scope of exemplary embodiments. Similarly, element one and element two do not represent the order of elements, and these terms are only used to distinguish one element from another element. As used herein, the term "and / or" includes any combination and all combinations of one or more associated listed items.
[0044] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0045] The standard parts used in the utility model can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt the conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.
[0046] The above is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.
Claims
1. A device for separating impurity ions in a chlorosilane solution, characterized in that: It includes: a separation body, a first electrode component, a second electrode component and a filter assembly; The separation body has a fluid channel therein; One end of the separation body has a material port 1; the material port 1 is connected to the fluid channel; The other end of the separation body is provided with a second material port; the second material port is communicated with the fluid channel; The first electrode member is disposed on the separation body and is located at one end of the fluid channel; The second electrode member is disposed on the separation body and is located at the other end of the fluid channel; The filter assembly comprises: a support member and a cellulose membrane; The support member is detachably arranged on the separation body; The cellulose membrane is detachably disposed on the support member and fixed by the support member for filtering the liquid in the fluid channel.
2. The device for separating impurity ions in chlorosilane solution according to claim 1, characterized in that: The support member comprises: a first pipe structure and a second pipe structure; The outer wall of the tube structure 1 has an external thread structure; the tube structure 1 is connected to the fluid channel through threads; The outer wall of the second tube structure has an external thread structure; the second tube structure is connected to the fluid channel through threads; The cellulose film is arranged between the first tube structure and the second tube structure, and is squeezed and fixed by the first tube structure and the second tube structure.
3. The device for separating impurity ions in chlorosilane solution according to claim 1, characterized in that: The support member is a rectangular frame structure; the support member can be inserted into the separation body; The cellulose film is clamped on the supporting member.
4. The device for separating impurity ions in chlorosilane solution according to claim 1, characterized in that: The support member is a grid plate structure; There are two supporting members; the two supporting members are overlapped with each other to clamp the cellulose film.
5. The device for separating impurity ions in chlorosilane solution according to any one of claims 1 to 4, characterized in that: The supporting member is made of polytetrafluoroethylene profile.
6. The device for separating impurity ions in chlorosilane solution according to claim 1, characterized in that: Also includes: power supply; The power source is connected to the first electrode member and the second electrode member.