Device for recycling mother liquor in scyllo-inositol preparation process

Abstract

The utility model discloses a mother liquor recycling device in a scyllo-inositol preparation process, which relates to the technical field of scyllo-inositol production, and is characterized in that ethanol in a scyllo-inositol mother liquor tank is distilled out through distillation, and dealcoholized feed liquid enters a first concentration and crystallization tank and is subjected to concentration and cooling crystallization; then filtering through a first filter to obtain mixed crystals of boric acid and scyllo-inositol, enabling the mixed crystals to enter a mixing tank, dissolving boric acid in purified water, enabling a boric acid aqueous solution to pass through a second filter, concentrating, cooling and crystallizing through a second concentrating and crystallizing tank, and then enabling the boric acid aqueous solution to pass through a third filter to obtain boric acid crystals. The boric acid is recycled, so that the economic benefit of the product is greatly improved, the waste is reduced, meanwhile, the discharge of hazardous wastes is reduced, and the method is environment-friendly.

Description

TECHNICAL FIELD

[0001] The utility model relates to shark muscle inositol production technical field, concretely relates to a recovery and utilization device of mother liquor in shark muscle inositol preparation process. BACKGROUND

[0002] In recent years, with the development of bioengineering technology, the biological method for preparing shark muscle inositol becomes a new development trend, and a large amount of boric acid is often used in the preparation process, and the complex salt of boric acid shark muscle inositol is generated to achieve the purpose of separating shark muscle inositol and inositol, and then the complex salt is decomposed by phosphoric acid, and then ethanol is added to obtain shark muscle inositol, which can produce a large amount of mother liquor while obtaining shark muscle inositol, and the mother liquor contains ethanol, phosphoric acid, boric acid, shark muscle inositol, water and a small amount of metal ions, and reasonable recovery and utilization of various components in the mother liquor can not only reduce the production cost, but also achieve the purpose of energy saving and emission reduction. SUMMARY

[0003] The technical problem to be solved by the utility model is: in view of the deficiencies existing in the prior art, a recovery and utilization device of mother liquor in shark muscle inositol preparation process is provided, the economic benefit is improved, the waste is reduced, and the environment is friendly.

[0004] To solve the above technical problems, the technical scheme of the utility model is:

[0005] A recovery and utilization device of mother liquor in shark muscle inositol preparation process, comprising a distillation tank, the inlet of the distillation tank is communicated with a shark muscle inositol mother liquor tank through a pipeline, the lower outlet of the distillation tank is communicated with a first concentration and crystallization tank through a pipeline, the outlet of the first concentration and crystallization tank is communicated with a first filter through a pipeline, and the solid phase outlet of the first filter is communicated with a mixed crystal tank through a pipeline.

[0006] The outlet of the mixed crystal tank is communicated with a mixing tank through a pipeline, the inlet of the mixing tank is communicated with a first purified water tank through a pipeline, the outlet of the mixing tank is communicated with a second filter through a pipeline, the liquid phase outlet of the second filter is communicated with a boric acid aqueous solution tank through a pipeline, the outlet of the boric acid aqueous solution tank is communicated with a second concentration and crystallization tank through a pipeline, the outlet of the second concentration and crystallization tank is communicated with a third filter through a pipeline, and the solid phase outlet of the third filter is communicated with a boric acid crystal tank.

[0007] Preferably, the upper outlet of the distillation tank is communicated with an ethanol recovery tank through a pipeline.

[0008] Preferably, the liquid phase outlet of the first filter is communicated with a phosphoric acid recovery tank through a pipeline.

[0009] Preferably, the outlet of the phosphoric acid recovery tank is communicated with a preparation tank through a pipeline, and the inlet of the preparation tank is communicated with a second purified water tank through a pipeline.

[0010] Preferably, the solid phase outlet of the second filter is communicated with a scyllite crystal tank through a pipeline.

[0011] Preferably, the liquid phase outlet of the third filter is communicated with a filtrate tank through a pipeline, and the outlet of the filtrate tank is communicated with the inlet of the first concentrated crystallization tank through a pipeline.

[0012] With the technical scheme, the device has the following advantages:

[0013] A mother liquor recycling device in a scyllite preparation process, comprising a distillation tank, an inlet of the distillation tank is communicated with a scyllite mother liquor tank through a pipeline, a lower outlet of the distillation tank is communicated with a first concentrated crystallization tank through a pipeline, an outlet of the first concentrated crystallization tank is communicated with a first filter through a pipeline, and a solid phase outlet of the first filter is communicated with a mixed crystal tank through a pipeline; an outlet of the mixed crystal tank is communicated with a mixing tank through a pipeline, an inlet of the mixing tank is communicated with a first purified water tank through a pipeline, an outlet of the mixing tank is communicated with a second filter through a pipeline, a liquid phase outlet of the second filter is communicated with a boric acid aqueous solution tank through a pipeline, an outlet of the boric acid aqueous solution tank is communicated with a second concentrated crystallization tank through a pipeline, an outlet of the second concentrated crystallization tank is communicated with a third filter through a pipeline, and a solid phase outlet of the third filter is communicated with a boric acid crystal tank. The scyllite mother liquor tank contains about 40% ethanol, 5% phosphoric acid, 5% boric acid and 1% scyllite, and the rest is water. The ethanol is first distilled out, the dealcoholized material liquid enters the first concentrated crystallization tank, is concentrated and crystallized by cooling, then is filtered through the first filter to obtain mixed crystals of boric acid and scyllite, the mixed crystals enter the mixing tank, the boric acid is dissolved in purified water, the boric acid aqueous solution is concentrated and crystallized by cooling through the second concentrated crystallization tank, then passes through the third filter to obtain boric acid crystals. The boric acid is recycled, the economic benefit of the product is greatly improved, waste is reduced, the discharge of hazardous waste is reduced, and the environment is friendly.

[0014] The upper outlet of the distillation tank is communicated with an ethanol recovery tank through a pipeline, the content of the recovered ethanol is greater than 90%, and the ethanol can be used in the crystallization section of the scyllite production, so that the cost of raw materials is reduced.

[0015] The liquid phase outlet of the first filter is communicated with a phosphoric acid recovery tank through a pipeline. The outlet of the phosphoric acid recovery tank is communicated with a preparation tank through a pipeline, and the inlet of the preparation tank is communicated with a second purified water tank through a pipeline. The first filter obtains phosphoric acid with a concentration of 60-70% wt, and then the phosphoric acid is diluted with purified water to obtain phosphoric acid with a concentration of 5-10% wt, which is used for acidolysis of boric acid scyllite complex salt, so that the phosphoric acid is recycled.

[0016] The solid phase outlet of the second filter is communicated with a scyllite crystal tank through a pipeline, through recovery of scyllite, economic benefits of products are improved, and waste is reduced.

[0017] The liquid phase outlet of the third filter is communicated with a filtrate tank through a pipeline, and the outlet of the filtrate tank is communicated with the inlet of the first concentration crystallization tank through a pipeline. BRIEF DESCRIPTION OF DRAWINGS

[0018] The utility model is further explained below in combination with the drawings and examples.

[0019] Figure 1 It is the structural schematic diagram of the utility model example;

[0020] Among them: 1, distillation tank, 2, scyllite mother liquor tank, 3, first concentration crystallization tank, 4, first filter, 5, mixed crystal tank, 6, mixing tank, 7, first purified water tank, 8, second filter, 9, boric acid aqueous solution tank, 10, second concentration crystallization tank, 11, third filter, 12, boric acid crystal tank, 13, ethanol recovery tank, 14, phosphoric acid recovery tank, 15, preparation tank, 16, second purified water tank, 17, scyllite crystal tank, 18, filtrate tank. DETAILED DESCRIPTION

[0021] The utility model is further explained below in combination with the drawings and examples.

[0022] As Figure 1As shown, a kind of recovery device of mother liquor in the preparation process of chrysamine, including distillation tank 1, the inlet of the distillation tank 1 is communicated with chrysamine mother liquor tank 2 by pipeline, the lower outlet of the distillation tank 1 is communicated with first concentrated crystallization tank 3 by pipeline, the outlet of the first concentrated crystallization tank 3 is communicated with first filter 4 by pipeline, the solid phase outlet of the first filter 4 is communicated with mixed crystal tank 5 by pipeline;The outlet of the mixed crystal tank 5 is communicated with mixing tank 6 by pipeline, the inlet of the mixing tank 6 is communicated with first purified water tank 7 by pipeline, the outlet of the mixing tank 6 is communicated with second filter 8 by pipeline, the liquid phase outlet of the second filter 8 is communicated with boric acid aqueous solution tank 9 by pipeline, the outlet of the boric acid aqueous solution tank 9 is communicated with second concentrated crystallization tank 10 by pipeline, the outlet of the second concentrated crystallization tank 10 is communicated with third filter 11 by pipeline, the solid phase outlet of the third filter 11 is communicated with boric acid crystal tank 12.The chrysamine mother liquor tank 2 contains about 40% ethanol, 5% phosphoric acid, 5% boric acid, 1% chrysamine, and the rest is water, first distill ethanol, de-alcohol material liquid enters the first concentrated crystallization tank 3, crystallizes by concentration and cooling, then the mixed crystal of boric acid and chrysamine is obtained by filtering through the first filter 4, the mixed crystal enters the mixing tank 6, boric acid is dissolved in purified water, after the second filter 8, the boric acid aqueous solution is concentrated and crystallized by the second concentrated crystallization tank 10, then through the third filter 11, boric acid crystal is obtained.By recycling boric acid, the economic benefit of the product is greatly improved, waste is reduced, and the environment is friendly.

[0023] The upper outlet of the distillation tank 1 is communicated with ethanol recovery tank 13 by pipeline, the recovery ethanol content is >90%, which can be applied to the crystallization stage of chrysamine production, reducing the cost of raw materials.

[0024] The liquid phase outlet of the first filter 4 is communicated with phosphoric acid recovery tank 14 by pipeline. The outlet of the phosphoric acid recovery tank 14 is communicated with preparation tank 15 by pipeline, and the inlet of the preparation tank 15 is communicated with second purified water tank 16 by pipeline. The first filter 4 obtains phosphoric acid with a concentration of 60-70% wt, which is then diluted with purified water to obtain 5-10% wt phosphoric acid, which is used for acidolysis of boric acid chrysamine salt, achieving the purpose of recycling.

[0025] The solid phase outlet of the second filter 8 is communicated with chrysamine crystal tank 17 by pipeline, by recycling chrysamine, the economic benefit of the product is improved, and waste is reduced.

[0026] The liquid phase outlet of the third filter 11 is communicated with filtrate tank 18 by pipeline, and the outlet of the filtrate tank 18 is communicated to the inlet of the first concentrated crystallization tank 3 by pipeline. By returning the filtrate to the first concentrated crystallization tank 3, the yield of raw materials is improved, and the production benefit is greatly improved.

[0027] It should be understood that these embodiments are merely illustrative of the present application and do not limit the scope of the present application. Furthermore, it should be understood that various modifications can be made to the present application by those skilled in the art upon reading the contents of the present application, and these equivalent forms also fall within the scope of the appended claims of the present application.

Claims

1. A device for recycling mother liquor in a process for preparing scyllo-inositol, characterized by: The distillation tank is connected with the sharkskin mother liquor tank through a pipeline at the inlet, and connected with the first concentrated crystallization tank through a pipeline at the lower outlet, and the outlet of the first concentrated crystallization tank is connected with the first filter through a pipeline, and the solid-phase outlet of the first filter is connected with the mixed crystal tank through a pipeline; ​ The outlet of the mixed crystal tank is connected with the mixed tank through a pipeline, the inlet of the mixed tank is connected with the first purified water tank through a pipeline, the outlet of the mixed tank is connected with the second filter through a pipeline, the liquid-phase outlet of the second filter is connected with the boric acid aqueous solution tank through a pipeline, the outlet of the boric acid aqueous solution tank is connected with the second concentrated crystallization tank through a pipeline, the outlet of the second concentrated crystallization tank is connected with the third filter through a pipeline, and the solid-phase outlet of the third filter is connected with the boric acid crystal tank.

2. The apparatus for recycling mother liquor in a process for preparing scyllite according to claim 1, wherein: The upper outlet of the distillation tank is connected with the ethanol recovery tank through a pipeline.

3. The apparatus for recycling mother liquor in a process for preparing scyllite according to claim 1, wherein: The liquid-phase outlet of the first filter is connected with the phosphoric acid recovery tank through a pipeline.

4. The apparatus for recycling mother liquor in a process for preparing scyllite according to claim 3, wherein: The outlet of the phosphoric acid recovery tank is connected with the preparation tank through a pipeline, and the inlet of the preparation tank is connected with the second purified water tank through a pipeline.

5. The apparatus for recycling mother liquor in a process for preparing scyllite according to claim 1, wherein: The solid-phase outlet of the second filter is connected with the sharkskin crystal tank through a pipeline.

6. The apparatus for recycling mother liquor in a process for preparing scyllite according to claim 1, wherein: The liquid-phase outlet of the third filter is connected with the filtrate tank through a pipeline, and the outlet of the filtrate tank is connected with the inlet of the first concentrated crystallization tank through a pipeline.

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