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Glutamic acid ultrasonic-processing method

A glutamic acid and ultrasonic technology, applied in chemical instruments and methods, preparation of organic compounds, organic chemistry, etc., can solve the problems of increasing the burden on enterprises and increase, and achieve the effect of reducing content, reducing cost and obvious effect.

Inactive Publication Date: 2012-10-03
张吉浩
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Problems solved by technology

Although high-quality glutamic acid can be obtained through the crystallization process of glutamic acid, with the continuous rise of energy prices in recent years, the share of water, electricity and steam in the cost of sodium glutamate refining process has gradually increased, which has aggravated the business burden

Method used

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Embodiment Construction

[0010] Below in conjunction with embodiment further illustrate the present invention.

[0011] 1. Ultrasonic treatment of glutamic acid

[0012] The glutamic acid suspension with a concentration of 18-20 Baume and a temperature of 35°C is adjusted with water, and is mixed with steam through an injector and continuously added to the pretreatment tank. The pretreatment tank mentioned here is a crystal transfer tank equipped with an ultrasonic device. Can;

[0013] The control parameters of the pretreatment tank are:

[0014] The temperature of the suspension in the tank: 65-70°C;

[0015] Ultrasonic frequency in the tank: 18-40KHz;

[0016] Ultrasonic intensity in the tank: 0.5-1.2KW / m 3 ;

[0017] The residence time of the suspension in the tank: 1 hour;

[0018] Stirring speed of pretreatment tank: 50 rpm;

[0019] 2. Crystal transfer process

[0020] The glutamic acid suspension after pretreatment enters the crystal conversion tank continuously, and heats up with stea...

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Abstract

The invention provides a glutamic acid ultrasonic-processing method which aims to solve the problem that with the continuous increase of energy source prices in recent years, the cost share of water, electricity and steam of a glutamic acid crystal transition process, accounting for that of a sodium glutamate refining process, is gradually increased. The invention is characterized in that ultrasonic waves are started to process an alpha type glutamic acid suspension loaded in a container, and the alpha type glutamic acid suspension is heated during processing. The invention has the advantagesthat under the mechanical action and the cavitation action of the ultrasonic waves, impurities are released to the outside of glutamic acid druses in advance, the impurities can be removed at lower temperature within shorter time through ultrasonic processing, and an alkali adding link is saved in the processing process, so that the processing cost is greatly lowered and an unexpected effect is obtained.

Description

technical field [0001] The invention relates to a treatment method for removing impurities entrained in glutamic acid crystal clusters, specifically a method for treating glutamic acid with ultrasonic waves. Background technique [0002] The quality of glutamic acid directly affects the yield and consumption of the refining process and the quality of the final product - sodium glutamate. Good quality glutamic acid can reduce water, electricity and steam consumption in the refining process, increase yield and obtain high-quality monosodium glutamate. The so-called poor-quality glutamic acid refers to glutamic acid that contains a large amount of impurities in α-glutamic acid crystal clusters, or that contains impurities that are difficult to separate from glutamic acid crystal clusters. In the past, when the energy price was relatively low, coupled with the high cost of crystal conversion (mainly alkali consumption and yield loss), the crystal conversion process was not used...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C229/24C07C227/42
Inventor 张吉浩
Owner 张吉浩
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