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Method for recycling activated carbon after decolorization of gentamicin sulfate

A technology of gentamicin sulfate and activated carbon, which is applied in separation methods, chemical instruments and methods, and other chemical processes, etc., can solve the problems of cumbersome processing procedures, large staffing, environmental pollution, etc., so as to reduce production costs and protect the environment. , the effect of simple operation

Active Publication Date: 2021-04-20
福安药业集团烟台只楚药业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, in the traditional process, the activated carbon used in the "charcoal removal" step is treated as medicinal waste and discarded. Not only is the treatment process cumbersome, the workload is heavy, the cycle is long, the staffing is large, the cost is high, and it also pollutes after discarding. environment; so this processing method needs to be improved

Method used

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  • Method for recycling activated carbon after decolorization of gentamicin sulfate
  • Method for recycling activated carbon after decolorization of gentamicin sulfate
  • Method for recycling activated carbon after decolorization of gentamicin sulfate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The method for gac recycling after gentamicin sulfate decolorization, concrete steps are as follows:

[0033] 1 heating alkaline washing

[0034] 1.1 Put 500kg of wet activated carbon into a 5-ton enamel reaction kettle, add 1000L of water and 50kg of sodium hydroxide, stir and turn on steam to heat to 80°C, keep it warm for 3 hours, and maintain pH=14.

[0035] 1.2 Release the feed liquid to the filter press box for hot filtration, and the filtrate enters the acid-base neutralization tank.

[0036] 1.3 Wash the filter cake with 500kg of hot water at 80°C for three times in total. The filtrate enters the acid-base neutralization tank, and the washed filter cake is dried with air to obtain activated carbon after alkali washing.

[0037] 2 heating pickling

[0038] 2.1 Add the activated carbon after alkali washing into a 5000L reaction kettle, add 500L water, add 6kg of concentrated sulfuric acid with a mass concentration of 98%, stir and heat up to 65°C, keep stirring ...

Embodiment 2

[0055] The method for gac recycling after gentamicin sulfate decolorization, concrete steps are as follows:

[0056] 1 heating alkaline washing

[0057] 1.1 Put 500kg of wet activated carbon into a 5-ton enamel reaction kettle, add 1000L of water and 50kg of sodium hydroxide, stir and turn on steam to heat to 85°C, keep warm for 3 hours, and maintain pH=13.

[0058] 1.2 Release the feed liquid to the filter press box for hot filtration, and the filtrate enters the acid-base neutralization tank.

[0059] 1.3 Wash the filter cake with 500kg of 85°C hot water for three times in total. The filtrate enters the acid-base neutralization tank, and the washed filter cake is dried with air to obtain activated carbon after alkali washing.

[0060] 2 heating pickling

[0061] 2.1 Add the activated carbon after alkali washing into a 5000L reaction kettle, add 500L water, add 6kg of concentrated sulfuric acid with a mass concentration of 98%, stir and heat up to 60°C, keep stirring for 1 ...

Embodiment 3

[0080] The method for gac recycling after gentamicin sulfate decolorization, concrete steps are as follows:

[0081] 1 heating alkaline washing

[0082] 1.1 Put 500kg of wet activated carbon into a 5-ton enamel reaction kettle, add 1000L of water and 50kg of sodium hydroxide, stir and turn on steam to heat to 83°C, keep warm for 3 hours, and maintain pH=13.5.

[0083] 1.2 Release the feed liquid to the filter press box for hot filtration, and the filtrate enters the acid-base neutralization pool.

[0084] 1.3 Wash the filter cake with 500kg of 83°C hot water for three times in total. The filtrate enters the acid-base neutralization tank, and the washed filter cake is dried with air to obtain activated carbon after alkali washing.

[0085] 2 heating pickling

[0086] 2.1 Add the activated carbon after alkali washing into a 5000L reaction kettle, add 500L water, add 6kg of concentrated sulfuric acid with a mass concentration of 98%, stir and heat up to 64°C, stir and keep warm...

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Abstract

The invention discloses a method for recycling activated carbon after decolorization with gentamicin sulfate. The process flow is as follows: activated carbon after decolorization → heating and alkali washing → filtering while hot → washing and drying → heating and pickling → filtering while hot → heating and pickling → Filtration while hot → washing and drying → gentamicin sulfate powder and regenerated activated carbon, which can not only reduce the loss of gentamicin sulfate caused by the decolorization step, but also obtain regenerated activated carbon, which can be reused for the deprocessing of gentamicin sulfate charcoal. The invention has the following advantages: short cycle time and high production capacity; the yield of gentamicin sulfate is increased to reduce production cost; activated carbon is reused to reduce production cost and protect the environment. The treated activated carbon can be reused after being dried to reduce production cost; reduce waste discharge and protect the environment; small investment in transformation, simple operation and high efficiency; the invention has small investment in transformation, simple operation and high efficiency, and is suitable for industrial production.

Description

technical field [0001] The invention relates to a method for recycling activated carbon, in particular to a method for recycling activated carbon after decolorization with gentamicin sulfate. It belongs to the field of pharmaceutical technology. Background technique [0002] Gentamicin sulfate is an aminoglycoside broad-spectrum antibiotic, which has antibacterial and bactericidal effects on a variety of Gram-negative bacteria and positive bacteria. It has a strong effect on Gram-negative bacteria such as Pseudomonas aeruginosa, Bacillus aerogenes, Klebsiella pneumoniae, Salmonella, Escherichia coli and Proteus and Staphylococcus aureus. The mechanism of action of gentamicin sulfate is to firmly bind to the specific protein on the bacterial ribosome subunit, interfere with the function of the ribosome, prevent protein synthesis, and cause errors in the code on the translation messenger ribonucleic acid (mRNA) to synthesize no functional protein. Clinically used for sepsis...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07H15/236C07H1/06B01J20/34B01J20/20
CPCB01J20/20B01J20/3416B01J20/3475B01J20/3483C07H1/06C07H15/236
Inventor 董宏伟徐鹏张卫葛祥斌王莉莉李晓娟周英楠杨春敬
Owner 福安药业集团烟台只楚药业有限公司
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