Method and equipment for separating butyl acetate from waste water of extractive spent phase in fermentation liquid of penicillin

A penicillin fermentation and butyl acetate technology, which is applied in the preparation of carboxylic acid esters, chemical instruments and methods, and the preparation of organic compounds, can solve the problems of equipment blockage and high energy consumption, and solve the problems of high energy consumption and water phase reduction Effects of back-mixing and improving hydrodynamic properties

Inactive Publication Date: 2005-11-16
INST OF PROCESS ENG CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] The purpose of the present invention is to overcome the high energy consumption, partial hydrolysis of butyl acetate and the coking of various organic substances under the condition of heating to overcome the traditional distilla

Method used

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  • Method and equipment for separating butyl acetate from waste water of extractive spent phase in fermentation liquid of penicillin
  • Method and equipment for separating butyl acetate from waste water of extractive spent phase in fermentation liquid of penicillin
  • Method and equipment for separating butyl acetate from waste water of extractive spent phase in fermentation liquid of penicillin

Examples

Experimental program
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Effect test

Example Embodiment

[0043] Example 1,

[0044] A glass tower 1 with an inner diameter of 10cm and a height of 2m is used as the main body of the solvent flotation tower. A porous sintered titanium alloy plate with an average pore diameter of 10 microns and a diameter of 14cm is connected to the bottom of the tower with a flange as a gas distributor 2. In the float tower 1, five stainless steel sieve plates 10 with a pitch of 30 cm are connected with threaded metal rods. The sieve holes of the sieve plates 10 are 3-5 mm in diameter. The upper and lower ends of the solvent floatation tower are provided with waste water in and out. The material holes 4 and 5, and the solvent inlet and outlet holes 6 and 7, the gas pressure provided by nitrogen or air cylinders is forced into the tower 1 through the gas distributor 2.

Example Embodiment

[0045] Example 2,

[0046] A stainless steel tower 1 with an inner diameter of 40cm and a height of 4m is used as the main body of the solvent flotation tower. A porous sintered plate with an average pore diameter of 10 microns and a diameter of 44cm is connected to the bottom of the tower with a flange as a gas distributor 2. Threaded metal rods are connected to 10 stainless steel sieve plates 10 with a plate spacing of 40 cm. The aperture of the sieve plates 10 is 3 to 5 mm. On each sieve plate, a layer of 3 cm high bulk packing or plate corrugated structured packing is placed. The upper and lower ends of the solvent flotation tower body are provided with waste water inlet and outlet holes 4 and 5, and solvent inlet and outlet holes 6 and 7, and the gas pressure provided by nitrogen or air cylinders is pressed into the tower 1 through the gas distributor 2.

[0047] 2. Examples 3-7 are the separation of butyl acetate from penicillin fermentation broth raffinate wastewater using ...

Example Embodiment

[0050] Example 3 Separation of Butyl Acetate in Intermittent Solvent Flotation Process

[0051] Add 15L of penicillin fermentation broth raffinate phase wastewater from the wastewater inlet 4 of the solvent flotation tower 1 prepared in Example 1, and the pH of the wastewater is 1-5. Add 300ml of isooctyl alcohol above the wastewater phase from the solvent inlet 6. Adjust the gas flow rate to 0.085cm / s. The pressure provided by nitrogen or air cylinders is pressed into the tower 1 through the gas distributor 2 to start the solvent flotation operation. Neither the water phase nor the solvent phase is fed or discharged. This intermittent solvent flotation process For 180 minutes, the butyl acetate in the raffinate phase wastewater of the penicillin fermentation broth is separated from the water phase and enriched in isooctyl alcohol; the solvent flotation operation is stopped, and the isooctyl alcohol in the upper layer of the water phase is collected. The experimental results are a...

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Abstract

An equipment for separating butyl acetate from the sewage generated during extracting penicillin from fermented liquid is a solvent air-floating tower with gas distributor, sieve plates and filler. Its process includes such steps as solvent air-floating to separate butyl acetate from liquid, rectifying for purifying the butyl acetate, and cycic use of solvent.

Description

technical field [0001] The invention relates to a method and equipment for separating butyl acetate from waste water, in particular to a method and equipment for separating butyl acetate from the raffinate phase waste water of penicillin fermentation liquid. Background technique [0002] The production of penicillin consists of fermentation, solvent extraction, stripping, crystallization and drying. The extraction process generally uses butyl acetate as the extraction agent. With the gradual expansion of penicillin production in my country, the amount of raffinate phase wastewater generated during the purification process has also increased significantly. The wastewater contains acetic acid with a mass percentage of about 1%. Butyl, if this part of butyl acetate is not recycled, it will not only be a big economic loss for the enterprise, but also a great pollution to the environment. Based on the consideration of two factors, enterprises attach great importance to the recove...

Claims

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Application Information

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IPC IPC(8): C07C69/14
Inventor 孙兴华常志东安振涛胡欣申淑锋刘会洲
Owner INST OF PROCESS ENG CHINESE ACAD OF SCI
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