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Treatment method and treatment system for cooled and crystallized filtered fluid in irbesartan crude product workshop section

A processing method and technology for filtrate, which are applied in the processing field of cooling and crystallization filtrate in crude irbesartan section, can solve problems such as secondary pollution, and achieve the effects of high ethanol purity and low operating cost

Inactive Publication Date: 2015-01-21
SHANGHAI BODAN ENVIRONMENTAL ENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the normal production process, the emission of ethanol is 0.135 tons of ethanol / ton of product, and the amount of residual liquid is 0.064 tons of residual liquid / ton of product. It can only be treated as industrial hazardous waste, which is very likely to cause secondary pollution

Method used

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  • Treatment method and treatment system for cooled and crystallized filtered fluid in irbesartan crude product workshop section

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment one, see figure 1 Shown:

[0024] Irbesartan crude product section cooling and crystallization filtrate: the daily discharge is about 3 tons, and the filtrate components include: ethanol 98.43% (W / W), condensate 0.31% (W / W), irbesartan 0.17 %(W / W), trace amounts of other substances.

[0025] Irbesartan crude product section cooling crystallization filtrate treatment system includes: 6m 3 1 volumetric filtrate collection tank, 2 circulating pumps, 1 set of silicone rubber permeable membrane separation device, 10m 2 1 spiral plate heat exchanger, 1 vacuum suction pump, and sufficient supply of frozen brine in the factory area as the refrigerant.

[0026] A processing method and system for cooling and crystallizing filtrate of irbesartan crude product section, comprising the following steps:

[0027] (1) Separately collect the cooling crystallization filtrate of the crude irbesartan section, and perform water quality homogenization and water volume adjustme...

Embodiment 2

[0031] Embodiment two, see figure 1 Shown:

[0032] The cooling and crystallization filtrate of the crude irbesartan workshop section and its treatment system are the same as those in Example 1.

[0033] A processing method and system for cooling and crystallizing filtrate of irbesartan crude product section, comprising the following steps:

[0034] (1) Separately collect the cooling crystallization filtrate of the crude irbesartan section, and perform water quality homogenization and water volume adjustment;

[0035] (2) Use a circulation pump to send the cooled crystallization filtrate that has been homogenized by water quality to the liquid phase side of the silicone rubber permeable membrane separation device for circulation; turn on the refrigerant circulation pump and vacuum pump to adjust the gas phase of the silicone rubber permeable membrane separation device. The side suction pressure is -0.003MPa; the temperature of the inlet refrigerant of the spiral plate heat ...

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Abstract

The invention relates to the technical field of medical waste liquid treatment and particularly relates to a treatment method and a treatment system for a cooled and crystallized filtered fluid in an irbesartan crude product workshop section. The treatment method comprises the following steps: independently collecting the cooled and crystallized filtered fluid in the irbesartan crude product workshop section, and performing water homogenization and water quantity regulation; feeding the homogenized cooled and crystallized filtered fluid into a liquid-phase side of a silicone rubber permeable membrane separating device by virtue of a circulating pump to circulate, so that alcohol permeates into a gas at a gas-phase side by virtue of a silicone rubber permeable membrane; feeding the gas containing alcohol into a condensing device for condensing alcohol in the gas into a liquid, and recycling the liquid to a production process. The treatment method and the treatment system for the cooled and crystallized filtered fluid in the irbesartan crude product workshop section are free of secondary pollution and distillation still raffinate, and have the advantages of saving resources and energy resources, and being simple in process, low in operation cost and the like; and separated alcohol is high in purity, and can be directly recycled to a front-end production process.

Description

technical field [0001] The invention relates to the technical field of medical waste liquid treatment, in particular to a treatment method and system for cooling and crystallizing filtrate in a crude irbesartan workshop. Background technique [0002] Irbesartan is used for the treatment of essential hypertension, has an important renal protective effect, and can slow down the progress of diabetic nephropathy. For patients with type 2 diabetic nephropathy, if they also suffer from high blood pressure, irbesartan can slow down the progression of nephropathy. [0003] Hypertension is a progressive cardiovascular disease characterized by continuous elevation of arterial blood pressure. It is the most common chronic disease in humans worldwide, including heart disease, cerebrovascular disease, The most important risk factor for kidney disease and death. my country has a large population. With the aging of the population, the incidence of essential hypertension has been increasi...

Claims

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Application Information

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IPC IPC(8): C07C29/76C07C31/08
CPCC07C29/76
Inventor 武广董杰
Owner SHANGHAI BODAN ENVIRONMENTAL ENG TECH