Efficient separation and extraction method of high-concentration ciprofloxacin synthetic liquid
A ciprofloxacin and extraction method technology, which is applied in the field of high-efficiency separation and extraction of high-concentration ciprofloxacin synthetic liquid, can solve the problem of extraction and reuse of ciprofloxacin and other components, which consumes a lot of porous carbon materials and cannot be used twice. pollution and other issues
Pending Publication Date: 2020-07-07
浙江迪萧科技有限公司
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Problems solved by technology
Although this method can quickly adsorb ciprofloxacin in water, for high-concentration ciprofloxacin liquid, it needs to consume a large amount of porous carbon materials and cannot extract and reuse ciprofloxacin and other components. Porous carbon materials also become secondary pollutants
[0003] Therefore, there is an urgent need for a stable, efficient, clean and pollution-free method for the concentration, separation and extraction of mixed liquids containing high concentrations of ciprofloxacin to make up for the technological gap that the current market cannot effectively process such liquids
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[0020] The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
[0021] A high-efficiency separation and extraction method for high-concentration ciprofloxacin synthetic liquid components, comprising the following steps:
[0022] The 100L ciprofloxacin synthetic stock solution has a pH of 0.56, a conductivity of 102.52ms / cm, and a composition of 2% ciprofloxacin, 0.2% piperazine, 0.03% methanol, 3% NaCl and 0.09% ethanol. Add sodium hydroxide to adjust the pH of the ciprofloxacin synthetic solution to 8.9, pass the ciprofloxacin synthetic stock solution after the pH adjustment into the PVDF ultrafiltration membrane device, and obtain the precipitated ciprofloxacin on the ultrafiltration membrane of the ultrafiltration membrane device Shaxing precipitation; then enter the nanofiltration membrane device for separation and concentration, the head of the circulating pump is 350m, the initial operating pressure...
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Abstract
The invention provides an efficient separation and extraction method of a high-concentration ciprofloxacin synthetic liquid. The method comprises the following steps of adjusting the pH value of the ciprofloxacin synthetic stock solution to a proper range through acid or alkali, limiting the operating temperature, pressure and flow, circularly and continuously operating in a mode of combining an ultrafiltration membrane device and a nanofiltration membrane device, efficiently extracting ciprofloxacin from the ciprofloxacin synthetic stock solution, and obtaining piperazine and salt through evaporation and distillation. According to the method provided by the invention, the treatment cost and the energy consumption of the ciprofloxacin-containing water body in the traditional process are greatly reduced, no secondary pollutants are generated in the separation and extraction process, and the separation and extraction products can be recycled. Therefore, the ciprofloxacin and the piperazine in the water body are effectively removed and recycled by the method provided by the invention, the treatment cost of the process and the pollution to the environment are remarkably reduced, and the economic benefit and the environmental protection property are improved.
Description
technical field [0001] The invention belongs to the field of industrial sewage treatment and relates to a high-efficiency separation and extraction method for high-concentration ciprofloxacin synthetic liquid. Background technique [0002] Ciprofloxacin is a synthetic antibiotic widely used to treat some bacterial infections in humans and animals. At present, in the industrial field, liquids containing ciprofloxacin are mainly treated by evaporation, adsorption or biodegradation, which is not only time-consuming It consumes energy, and there will be secondary pollution. There is no effective separation method for the recovery and utilization of the components. There is still no effective and suitable treatment method for the resource reuse of high-concentration ciprofloxacin liquid. Patent CN2019109397599 provides a bimetallic nitrogen-doped magnetic porous carbon material for the adsorption of ciprofloxacin in water. The bimetallic nitrogen-doped magnetic porous carbon mate...
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IPC IPC(8): C02F9/10C02F101/34C02F101/38
CPCC02F9/00C02F1/444C02F1/442C02F1/04C02F1/66C02F2303/14C02F2101/34C02F2101/38
Inventor 丁武龙王浩宇王宇星
Owner 浙江迪萧科技有限公司