Method for producing polyaluminum ferric chloride composite water purification agent by using plant slag and coal gangue

A technology of polyaluminum ferric chloride and power plant slag, which is applied in the fields of ferric halide, solid waste removal, flocculation/sedimentation water/sewage treatment, etc. It can solve the problems of long production lines, large floor space and high production costs, and achieve Improve the seepage rate, reduce production costs, and strengthen the effect of market competitiveness

Inactive Publication Date: 2009-10-21
山东天元节能环保工程有限公司
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  • Application Information

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Problems solved by technology

Bauxite is the main raw material for the ceramic industry and aluminum smelting, and is a non-renewable mineral resource in the country. The production of polyaluminum ferric chloride water purifier with

Method used

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Experimental program
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Effect test

Embodiment 1

[0020] 5 tons of coal gangue are added to the reaction kettle, while injecting 3 tons of industrial waste hydrochloric acid with a mass percentage of 24%, injecting 2 tons of clear water, adding 0.2 tons of potassium chloride and 0.22 tons of calcium chloride in parts by weight, and Fully stir in the reaction kettle, and seal the reaction kettle to prevent the acid from volatilizing. Inject steam for heating, heat to 100-110°C, and react for 2-3 hours. After the reaction is completed, the material is cooled to 70-80°C for separation of residue and liquid. The separated liquid enters into another reaction tank and adds a basicity adjusting agent to adjust the polymerization. The time of the polymerization reaction is controlled to be 1-2 hours, and the temperature is 90-100°C. After the polymerization reaction is completed, cool to 70°C and separate the slag liquid while it is hot. The separation liquid is a liquid product. In the liquid product, the mass fraction of alumina i...

Embodiment 2

[0022] Add 5 tons of slag to the reactor, inject 3 tons of industrial waste hydrochloric acid with a mass percentage of 24%, inject 2 tons of clear water, add 0.2 tons of sodium chloride by weight, and fully stir in the reactor to react The kettle is sealed to prevent the acid from volatilizing. Inject steam for heating, heat to 110-120°C, and react for 2-3 hours. After the reaction is completed, the material is cooled to 70-80°C for separation of residue and liquid. The separated liquid enters into another reaction kettle and adds a basicity adjusting agent for polymerization adjustment, and the polymerization reaction time is controlled to be 1-2 hours, and the temperature is 95-100°C. After the polymerization reaction is completed, cool to 70°C and separate the slag liquid while it is hot. The separation liquid is a liquid product. In the liquid product, the mass fraction of alumina is 10.18%, the mass fraction of iron oxide is 1.5%, and the mass fraction of water-insolubl...

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Abstract

The invention discloses a method for producing a polyaluminum ferric chloride composite water purification agent by using plant slag and coal gangue; the method features easily obtained raw materials and simple process, and reduces the pollution of the coal mines, electric power plants and other industries to the environment; the invention achieves multiple purposes. is a green process for producing polyaluminum chloride and has wild development prospect.

Description

technical field [0001] The present invention uses power plant slag or coal gangue to produce polyaluminium-iron chloride composite water purifying agent, especially a water purifying agent produced by using coal gangue, a solid waste produced during coal mining and washing process, as the main raw material. The water purifier is mainly used for the purification treatment of industrial water, industrial wastewater, domestic sewage, etc. Background technique [0002] Coal gangue is mainly composed of inorganic substances, containing a large amount of inorganic compounds such as aluminum, iron, silicon, and other trace elements. The above compounds are all useful industrial raw materials. If they are directly stacked and discarded, it will be a great waste of resources. , especially for a country with relatively scarce resources like ours, this kind of waste should be eliminated. According to analysis and calculation, the coal gangue produced in Xiezhuang mining area contains ...

Claims

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Application Information

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IPC IPC(8): C01G49/10C02F1/52B09B3/00
Inventor 袁秋新郎秀勇郑朝勇张新勇
Owner 山东天元节能环保工程有限公司
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