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Carbide slag preparation of industrial sodium hydroxide reaction device

A sodium hydroxide and reaction device technology, applied in the direction of alkali metal hydroxides, etc., can solve the problems of lack, low concentration of sodium hydroxide solution, low reaction efficiency, etc., and achieve the effects of good effect, reduced pollution impact, and unique structure

Inactive Publication Date: 2017-06-06
HENAN INST OF ENG
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  • Claims
  • Application Information

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Problems solved by technology

However, this technology lacks special equipment, and there are problems such as low reaction efficiency and low concentration of sodium hydroxide solution.

Method used

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  • Carbide slag preparation of industrial sodium hydroxide reaction device
  • Carbide slag preparation of industrial sodium hydroxide reaction device

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Embodiment Construction

[0021] The specific implementation manners of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0022] Depend on figure 1 Given, the present invention comprises a concentration column, a first exchange reactor and a second exchange reactor, the first exchange reactor and the second exchange reactor have the same structure, both of which include a shell, the shell is a hollow structure, and the shell There is a liquid outlet at the bottom, a filter cloth is arranged on the liquid outlet, an agitator is arranged in the casing above the filter cloth, a feeding port and a water feeding port are respectively arranged on the upper part of the casing, the first exchange reactor and the second exchange reactor The liquid outlets are respectively connected to the inlet of the alkali-resistant pump 19 through the first circulation pipeline 10 and the second circulation pipeline 10a. The concentration column includes a shell ...

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Abstract

The invention relates to a reaction device for preparing industrial sodium hydroxide from carbide slag. The reaction device can effectively solve the problems of increasing the concentration of the industrial sodium hydroxide generated through the carbide slag and improving the efficiency of generating the industrial sodium hydroxide through the carbide slag. According to the technical scheme, the reaction device comprises a concentration column, a first exchange reactor and a second exchange reactor; a liquid outlet of the first exchange reactor and a liquid outlet of the second exchange reactor are connected with an inlet of an alkali-resisting pump through a first circulating pipeline and a second circulating pipeline respectively, an outlet of the alkali-resisting pump is communicated with the internal space, over a reverse osmosis membrane, of a concentration column shell through a third circulating pipeline, and a liquid outlet is formed in the bottom, under the reverse osmosis membrane, of the shell and connected with an inlet formed in the upper portion of the first exchange reactor and an inlet formed in the upper portion of the second exchange reactor through a fourth circulating pipeline and a fifth circulating pipeline respectively. The reaction device has the advantage of continuous production and achieves the function of efficiently converting the carbide slag into the industrial sodium hydroxide solution.

Description

technical field [0001] The invention relates to a reaction device for preparing industrial sodium hydroxide solution with calcium carbide slag and a method for preparing industrial sodium hydroxide solution with calcium carbide slag using the device. Background technique [0002] Carbide slag is the industrial waste discharged at the end of the production of acetylene with calcium carbide and water. At present, nearly 10 million tons of calcium carbide slag (dry slag) is produced in my country every year (nearly 50 million tons of slurry with a solid content of 20%). , Atmospheric environment caused serious harm. Carbide slag is generally treated with high-efficiency sedimentation and dehydration equipment. The newer treatment method is based on the technology of using calcium carbide slag to prepare industrial sodium hydroxide on the basis of waste recycling. However, this technology lacks special equipment, and there are problems such as low reaction efficiency and low c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01D1/04
CPCC01D1/04
Inventor 谷保祥王喜英刘碧波马培曹志林
Owner HENAN INST OF ENG
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