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Refining method for salt containing organic matters

A purification method and technology for organic matter, which can be used in chemical instruments and methods, solid waste removal, alkali metal halide purification, etc., and can solve problems such as inability to break, incomplete cracking, and uneven heating of salts.

Inactive Publication Date: 2017-02-22
克雷伯氏环保科技(苏州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing methods for salt containing organic matter use rotary kiln or rake furnace to pyrolyze and incinerate the organic matter in the salt, but the salt containing organic matter will stick into blocks and stick in the On the wall of the equipment, the existing rotary kiln or rake furnace cannot break the cohesive salt, resulting in uneven heating of the salt, incomplete cracking, blockage in the device, and the dissolved and filtered salt solution is colored and smelly. Cannot achieve the purpose of removing organic matter
[0003] The purpose of the present invention is to provide a method for refining salt containing organic matter, which overcomes the defects that the existing process carries out high-temperature cracking of salt containing organic matter, and the salt is easily bonded into blocks or bonded to the equipment wall and cannot be broken during the incineration process. At the same time, it overcomes the defect that the equipment that can break the salt that is bonded into a block is not resistant to high temperature

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0016] A refining method for salt containing organic matter, the sodium chloride containing organic matter is first stirred with biaxial hollow paddles, and the sodium chloride containing organic matter is preheated to 300°C with heat transfer oil, and then passed through a rotary kiln at a high temperature of 550°C Cracking, cracking and carbonizing the organic matter in the salt, dissolving the salt after high-temperature cracking with water, and filtering to obtain transparent brine, and then evaporating and crystallizing the transparent brine to obtain salt from which organic matter has been removed.

example 2

[0018] A refining method for salt containing organic matter, the sodium chloride containing organic matter is first preheated to 200°C with paddle-type stirring, and then subjected to high-temperature cracking at 700°C in a rake furnace, so that the organic matter in the salt is cracked, carbonized, and pyrolyzed The final salt is dissolved in water and filtered to obtain a transparent brine, and the transparent brine is evaporated and crystallized to obtain a salt from which organic matter has been removed.

example 3

[0020] A method for refining salt containing organic matter. The sodium sulfate containing organic matter is preheated to 250°C with paddle-type stirring, and then high-temperature cracked at 1100°C in a rake furnace to crack and carbonize the organic matter in the salt. After high-temperature cracking The salt is dissolved in water and filtered to obtain transparent brine, and the transparent brine is then subjected to ozone aeration, activated carbon adsorption filtration, evaporation and crystallization to obtain salt from which organic matter is removed.

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PUM

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Abstract

The invention relates to the field of chemical solid-waste treatment and in particular to a refining method for salt containing organic matters. The refining method for the salt containing the organic matters comprises the following steps of carrying out paddle type stirring and pre-heating on the salt containing the organic matters, carrying out high-temperature cracking through a rotary furnace or carrying out the high-temperature cracking through a rake type furnace so as to crack and carbonize the organic matters in the salt, dissolving the salt, which is cracked at a high temperature, with water and filtering to obtain transparent saline water, and evaporating and crystallizing the transparent saline water to obtain salt without the organic matters. The refining method for the salt containing the organic matters has the advantages of simple and reliable process, convenience for operation, low cost and small environmental pollution.

Description

technical field [0001] The invention relates to the field of chemical solid waste treatment, in particular to a method for refining salt containing organic matter. Background technique [0002] The existing methods for salt containing organic matter use rotary kiln or rake furnace to pyrolyze and incinerate the organic matter in the salt, but the salt containing organic matter will stick into blocks and stick in the On the wall of the equipment, the existing rotary kiln or rake furnace cannot break the cohesive salt, resulting in uneven heating of the salt, incomplete cracking, blockage in the device, and the dissolved and filtered salt solution is colored and smelly. The purpose of removing organic matter cannot be achieved. [0003] The purpose of the present invention is to provide a method for refining salt containing organic matter, which overcomes the defects that the existing process carries out high-temperature cracking of salt containing organic matter, and the sal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09B3/00C10B53/00C01D3/14C01D5/16
CPCC10B53/00C01D3/14C01D5/16B09B3/40
Inventor 高恒岭
Owner 克雷伯氏环保科技(苏州)有限公司