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Process for preparing chloramphenicol adsorbent

A preparation process and adsorbent technology, applied in the field of material modification, can solve problems such as unsatisfactory adsorption effect of chloramphenicol, and achieve the effects of good environmental benefits, improved soil conditions and low production costs

Active Publication Date: 2019-12-13
湖南君悦达科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem in the prior art that the adsorbent has an unsatisfactory adsorption effect on chloramphenicol, the purpose of the embodiments of the present invention is to provide a preparation process for the chloramphenicol adsorbent

Method used

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  • Process for preparing chloramphenicol adsorbent
  • Process for preparing chloramphenicol adsorbent
  • Process for preparing chloramphenicol adsorbent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] A preparation process of chloramphenicol adsorbent, the steps comprising:

[0051] S1: crushing the pine needles after being dried for the first time;

[0052] S2: After the pine needle powder obtained in step S1 is extracted, cleaned for the first time and dried for the second time, soaked in a modifier solution;

[0053] S3: After adjusting the pH of the modifying agent solution in step S2, leave it still;

[0054] S4: The pine needle powder treated in step S3 is washed for the second time and then dried for the third time to obtain the chloramphenicol adsorbent.

[0055]In the above process, the pine needles are first crushed to obtain a larger surface area, and then the pine needle powder is extracted. The purpose of the extraction treatment is to destroy the outer cuticle structure of the pine needles, so that the pine needle powder is loose and porous, and the fiber structure is exposed. The chloramphenicol adsorbent can be obtained by loading the active agent o...

Embodiment 2

[0067] In this example, a chloramphenicol adsorbent is actually prepared, specifically:

[0068] After washing the pine needles, place them in an oven at 80°C to dry to constant weight, crush and grind the dried pine needles, and collect crushed pine needles below 60 mesh;

[0069] Take 100g crushed pine needles and pass through supercritical CO 2 , 200mL95% NaOH solution to extract the remaining residue after the active ingredients of larch needles were extracted for 10h, washed with distilled water until the supernatant was colorless and transparent, and dried at 80°C to constant weight to obtain modified pine needles;

[0070] Take 20g of modified pine needles and put them into 200mL0.2moL / L phenylenediamine solution, stir for 1h and deposit for 10h, then add sodium hydroxide solution dropwise under stirring conditions, control the pH value at 8-9, and let it stand for 24h. Stir for 5min every 3h;

[0071] After the loading was deposited, the pine needles were washed with...

Embodiment 3

[0073] In this example, a chloramphenicol adsorbent is actually prepared, specifically:

[0074] After washing the pine needles, place them in an oven at 80°C to dry to constant weight, crush and grind the dried pine needles, and collect crushed pine needles below 60 mesh;

[0075] Take 100g crushed pine needles and pass through supercritical CO 2 , 200mL95% NaOH solution to extract the remaining residue after the active ingredients of larch needles were extracted for 12h, washed with distilled water until the supernatant was colorless and transparent, and dried at 80°C to constant weight to obtain modified pine needles;

[0076] Take 20g of modified pine needles and put them into 200mL0.4moL / L phenylenediamine solution, stir for 1h and deposit for 12h, then add sodium hydroxide solution dropwise under stirring conditions, control the pH value at 8-9, and let it stand for 24h. Stir for 5min every 3h;

[0077] After the loading was deposited, the pine needles were washed with...

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Abstract

The embodiment of the invention provides a process for preparing a chloramphenicol adsorbent. The process comprises the following steps: grinding pine needles to obtain a large surface area; soaking the pine needle powder in a modifier solution to load the modifier on the pine needle powder; and performing standing and washing, and performing second drying treatment on the pine needle powder to obtain the chloramphenicol adsorbent. The preparation process is simple in method and low in production cost. According to the preparation process provided by the embodiment, primary waste pine needlesare subjected to resource utilization, and chloramphenicol adsorbed pine needles can be used as organic fertilizer for improving the soil condition, so that the problem of forestal by-product development and utilization can be solved to a certain extent, a new means is provided to water body eutrophication, and the application prospect and environmental benefit are excellent.

Description

technical field [0001] The invention belongs to the technical field of material modification, and in particular relates to a preparation process of a chloramphenicol adsorbent. Background technique [0002] Chloramphenicol (CAP) is a crystalline powdery substance isolated from the culture solution of Streptomyces venezuelae by Ehrlichz in 1947. It is the first antibiotic that can be synthesized artificially. At present, it is mainly synthesized artificially. Because of its good antibacterial effect and pharmacokinetic properties, it is often used in the prevention and treatment of fish and other diseases in aquaculture. However, due to the possibility of mutagenesis and carcinogenesis, it is seriously toxic to the human hematopoietic system and digestive system, and can also cause harm to the ecological environment and human health through the transmission of the food chain. [0003] Common methods for removing chloramphenicol include photocatalysis, Fenton oxidation, micro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/24B01J20/30B01J20/34C02F1/28C02F101/34C02F101/36C02F101/38
CPCB01J20/22B01J20/24B01J20/30B01J20/3425B01J20/3475C02F1/288C02F2101/34C02F2101/36C02F2101/38
Inventor 江国防吴应辉杨志军
Owner 湖南君悦达科技有限公司
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