Reaction device for crystallizing aluminum chloride

Abstract

The utility model relates to a reaction device for crystalline aluminum chloride. The reaction device comprises an acidolysis unit, an acidolysis auxiliary unit and a post-treatment unit, the acidolysis unit is respectively connected with the acidolysis auxiliary unit and the post-treatment unit; the acidolysis auxiliary unit comprises suction filtration equipment, raw material transfer equipment and material collection equipment; the suction filtration equipment is respectively connected with the raw material transfer equipment and the material collection equipment; the raw material transfer equipment comprises a liquid outlet, and the liquid outlet of the raw material transfer equipment is connected to the acidolysis unit. Crystallized aluminum chloride obtained by the reaction device disclosed by the utility model is high in purity and can be directly sold, and the device is simple in structure and capable of realizing cyclic utilization of raw materials, reducing energy consumption and cost, realizing material balance, improving income and simplifying operation.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of crystalline aluminium chloride, especially to a reaction device of crystalline aluminium chloride. BACKGROUND

[0002] Currently, the disposal methods of waste aluminium chloride trihydroxide water produced by hydrolysis after Friedel-Crafts reaction include making polyaluminium chloride, distillation or passing hydrogen chloride to make crystalline aluminium chloride.

[0003] The existing technology has too low yield in producing polyaluminium chloride, high energy consumption in distillation crystalline aluminium chloride, complicated operation in passing hydrogen chloride and cannot achieve material balance, and the reaction device required in making crystalline aluminium chloride by polyaluminium chloride, distillation or passing hydrogen chloride has complex structure, high cost, simple structure reaction device cannot prepare high-purity crystalline aluminium chloride, and cannot realize the recycling of raw materials, further increasing the economic cost.

[0004] Therefore, it is essential to develop a reaction device of crystalline aluminium chloride that can overcome the above-mentioned defects. CONTENT OF THE UTILITY MODEL

[0005] In view of the deficiencies of the prior art, the purpose of the utility model is to provide a reaction device of crystalline aluminium chloride, which has high purity, can be directly sold, and has simple structure, can realize the recycling of raw materials, reduce energy consumption and cost, achieve material balance, improve yield and simplify operation.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides a reaction device of crystalline aluminium chloride, which comprises an acidolysis unit, an acidolysis auxiliary unit and a post-treatment unit.

[0008] The acidolysis unit is connected with the acidolysis auxiliary unit and the post-treatment unit respectively.

[0009] The acidolysis auxiliary unit comprises a suction filtration device, a raw material transfer device and a material collection device.

[0010] The suction filtration device is connected with the raw material transfer device and the material collection device respectively.

[0011] The raw material transfer device comprises a liquid outlet, and the liquid outlet of the raw material transfer device is connected to the acidolysis unit.

[0012] The utility model discloses a reaction device, the crystalline aluminium chloride obtained by the reaction device has high purity, can be directly sold, and the device has simple structure, can realize the recycling of raw materials, reduce energy consumption and cost, achieve material balance, improve the income and simplify the operation.

[0013] In the utility model, the number of liquid inlet and liquid outlet in each unit is set according to the specific structure of the reaction process and the reaction device, for example, the liquid outlet of the raw material transfer equipment is connected to the acidolysis unit, which means that the material in the liquid outlet of the raw material transfer equipment is transferred to the liquid inlet of the acidolysis unit.

[0014] Preferably, the acidolysis unit comprises an acidolysis device.

[0015] The acidolysis unit comprises at least two (for example, three, four, five, etc.) liquid outlets, one of which is connected to the filtration equipment, and one of which is connected to the post-processing unit.

[0016] Preferably, the liquid outlet of the acidolysis unit is also connected to the raw material transfer equipment.

[0017] Preferably, the acidolysis unit comprises an acidolysis device and a separation device.

[0018] The separation device comprises at least two (for example, three, four, five, etc.) liquid outlets, one of which is connected to the filtration equipment, and one of which is connected to the post-processing unit.

[0019] Preferably, the liquid outlet of the separation device is also connected to the raw material transfer equipment.

[0020] In the utility model, the acidolysis device and the separation device, in actual operation of the reaction device, the aluminium chloride waste liquid is acidolysed by the acidolysis device and then enters the separation device, and is divided into upper organic phase, intermediate aluminium water phase and lower salt-containing aluminium water, the upper organic phase enters the post-processing unit, the lower salt-containing aluminium water enters the filtration equipment for filtration, the main component of the filter residue is crystalline aluminium chloride which enters the material collection equipment, the intermediate aluminium water phase and the filtrate enter the raw material transfer equipment and then enter the acidolysis unit for recycling.

[0021] Preferably, the post-processing unit comprises a water washing device and a collection device.

[0022] The water washing device comprises at least two (for example, three, four, five, etc.) liquid outlets, one of which is connected to the collection device.

[0023] The liquid outlet of the water washing device is further connected with the raw material transfer device and / or the acidolysis unit.

[0024] In the utility model, the post-processing unit includes the water washing device and the collecting device, after the upper organic phase enters the water washing device, the washing water enters the raw material transfer device and / or the acidolysis unit, and the washed upper organic phase enters the collecting device, and further processing is needed, and this structure realizes material balance through simple equipment.

[0025] Preferably, the reaction device further includes an acid liquid supplement unit.

[0026] The liquid outlet of the acid liquid supplement unit is connected with the acidolysis unit and / or the raw material transfer device.

[0027] In the utility model, the acid liquid supplement unit is used for automatically supplementing the acidolysis liquid required in the acidolysis process, and the acidolysis liquid is transferred from the acid liquid supplement unit to the acidolysis unit and / or the raw material transfer device, so that the addition amount of the acidolysis liquid in the acidolysis process is timely adjusted, the process flow is simplified, and the production efficiency is improved.

[0028] Preferably, the reaction device further includes an acidolysis liquid recovery unit.

[0029] The liquid inlet of the acidolysis liquid recovery unit is connected with the acidolysis unit.

[0030] In the utility model, the reaction device further includes the acidolysis liquid recovery unit, after the acidolysis is completed, the waste acidolysis liquid is transferred from the acidolysis unit to the acidolysis liquid recovery unit, the waste acidolysis liquid is recovered, and the resource is recycled.

[0031] Preferably, the reaction device further includes a waste liquid treatment unit.

[0032] The liquid inlet of the waste liquid treatment unit is connected with any one or a combination of at least two of the raw material transfer device, the acidolysis liquid recovery unit or the post-processing unit, and a typical but non-limiting combination includes a combination of the raw material transfer device and the acidolysis liquid recovery unit, a combination of the acidolysis liquid recovery unit and the post-processing unit, a combination of the raw material transfer device, the acidolysis liquid recovery unit and the post-processing unit, etc.

[0033] In the utility model, the reaction device further includes the waste liquid treatment unit, which is used for treating the waste liquid generated in a certain production link or some production links after the preparation of the crystalline aluminum chloride is completed, is energy-saving and environment-friendly, is environment-friendly, realizes the recycling of resources, and is environment-friendly.

[0034] Preferably, the reaction device further includes a reaction device.

[0035] The liquid outlet of the reaction device is connected with the acidolysis unit.

[0036] The reaction device can directly acidolysis the aluminum chloride waste liquid, or can first perform a Friedel-Crafts reaction to obtain a mixed liquid containing a reaction product such as a photoinitiator 1173 and aluminum chloride, and then the mixed liquid is transferred to an acidolysis unit for a next reaction, and the aluminum chloride is recovered to prepare crystalline aluminum chloride.

[0037] For example, the process flow of the reaction device in actual operation is as follows:

[0038] (1) first, the reaction raw material of the photoinitiator 1173 containing aluminum chloride is added to the reaction equipment for reaction, and the mixed liquid after reaction is subjected to acidolysis in the acidolysis equipment to obtain an upper organic phase, an intermediate aluminum water phase and a lower salt-containing aluminum water, and the liquid separation is performed in the acidolysis equipment or in the liquid separation equipment;

[0039] (2) the lower salt-containing aluminum water is transferred to the suction filtration equipment for suction filtration to obtain crystalline aluminum chloride and a filtrate;

[0040] (3) the intermediate aluminum water phase and the filtrate are mixed in the raw material transfer equipment, the upper organic phase is transferred to the water washing equipment for water washing, and the acidolysis liquid and the washing water of the upper organic phase are added in the raw material transfer equipment or the acidolysis equipment, and the acidolysis and liquid separation are repeated in step (2), and the above process is performed at least once to obtain crystalline aluminum chloride, and the upper organic phase after water washing is transferred to the collection equipment;

[0041] (4) the crystalline aluminum chloride obtained in steps (2) and (3) is collected in the material collection equipment, the acidolysis liquid such as hydrogen chloride in the acidolysis waste liquid is recovered through the acidolysis liquid recovery unit, and other waste liquids generated in each equipment are uniformly treated through the waste liquid treatment unit.

[0042] Compared with the prior art, the reaction device has the following beneficial effects:

[0043] The crystalline aluminum chloride obtained by the reaction device has high purity, can be directly sold, and the device structure is simple, the raw materials can be recycled, the energy consumption and cost are reduced, the material balance is achieved, the income is improved, and the operation is simplified. BRIEF DESCRIPTION OF DRAWINGS

[0044] Figure 1 is a structural schematic view of the reaction device described in embodiment 1;

[0045] Figure 2 is a structural schematic view of the reaction device described in embodiment 2;

[0046] Figure 3 is a structural schematic view of the reaction device described in embodiment 3;

[0047] Wherein, 1-reaction equipment; 2-acidolysis equipment; 3-separation equipment; 4-filtering equipment; 5-raw material transfer equipment; 6-water washing equipment; 7-material collecting equipment; 8-collecting equipment; 9-acidolysis liquid recovery unit. DETAILED DESCRIPTION

[0048] For the convenience of understanding the present application, the present application is listed as follows. It should be understood by those skilled in the art that the embodiments are only to help understand the present application, and should not be regarded as a specific limitation of the present application.

[0049] Embodiment 1

[0050] The present embodiment provides a reaction device for crystalline aluminum chloride, and a structural schematic diagram is shown as follows Figure 1 The arrow represents the material flow direction, and the reaction device comprises an acidolysis unit, an acidolysis auxiliary unit and a post-processing unit.

[0051] The acidolysis unit is connected with the acidolysis auxiliary unit and the post-processing unit respectively.

[0052] The acidolysis auxiliary unit comprises filtering equipment 4, raw material transfer equipment 5 and material collecting equipment 7.

[0053] The filtering equipment 4 is connected with the raw material transfer equipment 5 and the material collecting equipment 7 respectively.

[0054] The raw material transfer equipment 5 comprises a liquid outlet, and the liquid outlet of the raw material transfer equipment 5 is connected to the acidolysis unit.

[0055] The acidolysis unit comprises acidolysis equipment 2 and separation equipment 3.

[0056] The separation equipment 3 is connected with other units through a liquid outlet, one liquid outlet is connected to the filtering equipment 4, one liquid outlet is connected to the post-processing unit, and one liquid outlet is connected to the raw material transfer equipment 5.

[0057] The post-processing unit comprises water washing equipment 6 and collecting equipment 8.

[0058] The water washing equipment 6 comprises two liquid outlets, one of which is connected to the collecting equipment 8, and the other is connected to the raw material transfer equipment 5.

[0059] The reaction device further comprises an acid liquid supplementing unit (not shown in the figure).

[0060] The acid liquid supplementing unit is connected with the acidolysis equipment 2.

[0061] The reaction device further comprises an acidolysis liquid recovery unit 9.

[0062] The acidolysis liquid recovery unit 9 is connected with the acidolysis equipment.

[0063] The reaction device further comprises a waste liquid treatment unit (not shown in the figure).

[0064] The waste liquid treatment unit is connected to the raw material transfer device and the acidolysis liquid recovery unit respectively (not shown in the figure).

[0065] The reaction device further comprises a reaction device 1;

[0066] The reaction device 1 is connected to the acidolysis unit.

[0067] Example 2

[0068] The present embodiment provides a reaction device for crystalline aluminum chloride, a structural schematic diagram of which is shown in Figure 2 The arrow represents the material flow direction, and the reaction device comprises an acidolysis unit, an acidolysis auxiliary unit, and a post-treatment unit;

[0069] The acidolysis unit is connected to the acidolysis auxiliary unit and the post-treatment unit respectively;

[0070] The acidolysis auxiliary unit comprises a suction filtration device 4, a raw material transfer device 5, and a material collection device 7;

[0071] The suction filtration device 4 is connected to the raw material transfer device 5 and the material collection device 7 respectively;

[0072] The raw material transfer device 5 comprises a liquid outlet, and the liquid outlet of the raw material transfer device 5 is connected to the acidolysis unit.

[0073] The acidolysis unit comprises an acidolysis device 2;

[0074] The acidolysis device 2 is connected to other units through liquid outlets, one liquid outlet is connected to the suction filtration device 4, one liquid outlet is connected to the post-treatment unit, and one liquid outlet is connected to the raw material transfer device 5.

[0075] The post-treatment unit comprises a water washing device 6 and a collection device 8;

[0076] The water washing device 6 comprises two liquid outlets, one of which is connected to the collection device 8, and the other is connected to the acidolysis unit.

[0077] The reaction device further comprises an acid liquid supplement unit (not shown);

[0078] The acid liquid supplement unit is connected to the acidolysis device 2 of the acidolysis unit and the raw material transfer device 5.

[0079] The reaction device further comprises an acidolysis liquid recovery unit 9;

[0080] The acidolysis liquid recovery unit 9 is connected to the acidolysis device 2 of the acidolysis unit.

[0081] The reaction device further comprises a waste liquid treatment unit (not shown);

[0082] The waste liquid treatment unit is connected to the raw material transfer device 5, the acidolysis liquid recovery unit 9 and the post-treatment unit respectively (not shown).

[0083] The reaction device further comprises the reaction device 1;

[0084] The reaction device 1 is connected to the acidolysis device 2 of the acidolysis unit.

[0085] Embodiment 3

[0086] The difference between this embodiment and embodiment 1 is that the reaction device is not included, and the acidolysis process is directly performed in actual operation.

[0087] Exemplarily, the reaction device taking embodiments 1-3 as examples has the following process in actual operation:

[0088] (1) The reaction raw material of the photoinitiator 1173 containing aluminum chloride is first added to the reaction device 1 for reaction, and the mixed liquid after reaction is subjected to acidolysis in the acidolysis device 2 to obtain an upper organic phase, an intermediate aluminum water phase and a lower salt-containing aluminum water, and the liquid separation is performed in the acidolysis device 2 or the liquid separation device 3;

[0089] (2) The lower salt-containing aluminum water is transferred to the suction filtration device 4 for suction filtration to obtain crystalline aluminum chloride and a filtrate;

[0090] (3) The intermediate aluminum water phase and the filtrate are mixed in the raw material transfer device 5, the upper organic phase is transferred to the water washing device 6 for water washing, and the acidolysis liquid and the washing water of the upper organic phase are supplemented in the raw material transfer device 5 or the acidolysis device 2, and the acidolysis and liquid separation are repeated step (2), and the above process is performed at least once to obtain crystalline aluminum chloride, and the upper organic phase after water washing enters the collection device 8;

[0091] (4) The crystalline aluminum chloride obtained in steps (2) and (3) is collected in the material collection device 7, the acidolysis liquid such as hydrogen chloride in the waste liquid after acidolysis is recovered through the acidolysis liquid recovery unit 9, and other waste liquids generated in each device are uniformly treated through the waste liquid treatment unit.

[0092] In the utility model, the crystalline aluminum chloride obtained by the reaction device has high purity, can be directly sold, and the device structure is simple, the raw material can be recycled, the energy consumption and cost are reduced, the material balance is achieved, the income is improved and the operation is simplified. In the utility model, in actual operation, the aluminum chloride waste liquid (for example, which is not limited to the aluminum chloride waste liquid, and other waste liquids containing aluminum salt can be selected) is subjected to acidolysis through the acidolysis unit and is divided into an upper organic phase, an intermediate aluminum water phase and a lower salt-containing aluminum water, the upper organic phase enters the post-treatment unit, the lower salt-containing aluminum water enters the suction filtration device for suction filtration, the filter residue mainly composed of crystalline aluminum chloride enters the material collection device, and the intermediate aluminum water phase and the filtrate enter the raw material transfer device and then enter the acidolysis unit for recycling.

[0093] In the utility model, the acidolysis equipment and the liquid separation equipment, the reaction device in actual operation, the aluminium chloride waste liquid is acidolysed after entering the liquid separation equipment through the acidolysis equipment, or is acidolysed in the acidolysis equipment, and is divided into upper organic phase, intermediate aluminium water phase and lower salt-containing aluminium water, the upper organic phase enters the post-treatment unit, the lower salt-containing aluminium water enters the suction filtration equipment and is suction filtered, the main component of the filter residue is crystalline aluminium chloride and enters the material collecting equipment, the intermediate aluminium water phase and the filtrate enter the raw material transfer equipment, and then enter the acidolysis unit and are repeatedly used.

[0094] In the utility model, the post-treatment unit includes the water washing equipment and the collecting equipment, after the upper organic phase enters the water washing equipment, washing water enters the raw material transfer equipment and / or the acidolysis unit, and the upper organic phase after washing enters the collecting equipment, and is further treated according to the requirement, and this structure realizes material balance through simple equipment.

[0095] In the utility model, after acidolysis is completed, the waste acidolysis liquid is transferred from the acidolysis unit to the acidolysis liquid recovery unit, the waste acidolysis liquid is recovered, and the resource is repeatedly used.

[0096] In the utility model, the waste liquid treatment unit is used for treating the waste liquid generated in a certain production link or some production links after the preparation of crystalline aluminium chloride, is energy-saving and environment-friendly, is environment-friendly, realizes the recycling of resources.

[0097] The applicant declares that the utility model is explained through the above embodiment, but the utility model is not limited to the above detailed method, namely, it does not mean that the utility model must depend on the above detailed method to be implemented. The skilled in the art should understand that any improvement of the utility model, equivalent replacement of each raw material of the utility model product and addition of auxiliary ingredients, selection of specific mode and the like fall within the protection scope and the disclosure scope of the utility model.

Claims

1. A reaction apparatus for crystallizing aluminum chloride, characterized in that, The reaction device comprises an acidolysis unit, an acidolysis auxiliary unit and a post-processing unit; The acidolysis unit is connected with the acidolysis auxiliary unit and the post-processing unit respectively; The acidolysis auxiliary unit comprises a suction filtration device, a raw material transfer device and a material collection device; The suction filtration device is connected with the raw material transfer device and the material collection device respectively; The raw material transfer device comprises a liquid outlet, and the liquid outlet of the raw material transfer device is connected to the acidolysis unit.

2. The reaction apparatus according to claim 1, wherein The acidolysis unit comprises an acidolysis device; The acidolysis unit comprises at least two liquid outlets, one of which is connected to the suction filtration device and the other of which is connected to the post-processing unit.

3. The reactor of any of claims 1-2, wherein, The liquid outlet of the acidolysis unit is also connected to the raw material transfer device.

4. The reaction apparatus of claim 1, wherein The acidolysis unit comprises an acidolysis device and a liquid separation device; The liquid separation device comprises at least two liquid outlets, one of which is connected to the suction filtration device and the other of which is connected to the post-processing unit.

5. The reaction apparatus of claim 4, wherein The liquid outlet of the liquid separation device is also connected to the raw material transfer device.

6. The reaction apparatus of claim 1, wherein The post-processing unit comprises a water washing device and a collection device; The water washing device comprises at least two liquid outlets, one of which is connected to the collection device; The liquid outlet of the water washing device is also connected to the raw material transfer device and / or the acidolysis unit.

7. The reaction apparatus of claim 1, wherein The reaction device further comprises an acid liquid supplementing unit; The liquid outlet of the acid liquid supplementing unit is connected to the acidolysis unit and / or the raw material transfer device.

8. The reactor of claim 1 wherein, The reaction device further comprises an acidolysis liquid recovery unit; The liquid inlet of the acidolysis liquid recovery unit is connected to the acidolysis unit.

9. The reaction apparatus of claim 8, wherein The reaction device further comprises a waste liquid treatment unit; The liquid inlet of the waste liquid treatment unit is connected to any one or a combination of at least two of the raw material transfer device, the acidolysis liquid recovery unit or the post-processing unit.

10. The reaction apparatus of claim 1, wherein The reaction device further comprises a reaction device; The liquid outlet of the reaction device is connected to the acidolysis unit.

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