Method for preparing rare earth ceria modified inorganic polymeric flocculant by using industrial waste

An inorganic polymer and flocculant technology, applied in the direction of flocculation/sedimentation water/sewage treatment, etc., to achieve the effect of reducing production cost and wastewater treatment cost, improving environmental value, and wide application range of pH value

Inactive Publication Date: 2009-11-11
SHANDONG UNIV
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Problems solved by technology

However, using blast furnace gas ash and aluminum smelting slag as the main raw materials, adding rare earth cerium compounds to prepare rare eart

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  • Method for preparing rare earth ceria modified inorganic polymeric flocculant by using industrial waste

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Embodiment Construction

[0020] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0021] Such as figure 1 As shown, using blast furnace gas ash and aluminum smelting slag as main raw materials to prepare rare earth cerium modified inorganic polymer flocculant body products includes the following steps:

[0022] 1. A method for preparing rare earth cerium modified inorganic polymer flocculant (RE-PAFC), which is to use blast furnace gas ash and aluminum smelting slag containing iron salt and aluminum salt material as main raw materials, add rare earth compound, and heat synthesis Obtain; it is characterized in that: the specific synthetic method of described rare earth cerium modified inorganic polymer flocculant is:

[0023] (1) Raw material pretreatment: After the industrial waste blast furnace gas ash and aluminum smelting ash are naturally air-dried respectively, pass through a 60-mesh sieve and set aside;

[0024] (2) Preparation of blast fu...

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Abstract

The invention discloses a method for preparing a rare earth ceria modified inorganic polymeric flocculant by using industrial waste. In the method, blast furnace dust and aluminum-making cinder which contain iron salt and aluminum salt materials are used as main raw materials and are added with rare earth compounds to form the rare earth ceria modified inorganic polymeric flocculant through the thermosynthesis. The product synthesized by the method is a rare earth modified composite iron-aluminum polymer which has the combined properties of aluminum salt flocculants and iron salt flocculants as well as excellent water purifying property and a wide application range. The method provides a feasible way for comprehensively using wastes from iron plants and aluminum plants and provides a process route for producing flocculants with a cheap raw material, thereby realizing treating waste with waste and creating excellent economic, social and environmental benefits.

Description

technical field [0001] The invention relates to a production process of a composite inorganic macromolecule flocculant, in particular to a method for preparing a rare earth modified inorganic macromolecule by using steel mill waste blast furnace gas ash and aluminum plant waste aluminum smelting slag as main raw materials and adding a compound of rare earth cerium flocculant method. Background technique [0002] Blast furnace gas ash is the particle produced by the dust of the raw fuel brought out by the blast furnace gas (also known as gas) and the intense reaction in the high temperature zone during the ironmaking process of the ironmaking blast furnace. Its main components are carbon particles, elemental iron and its oxides. , in addition to SiO 2 、Al 2 o 3 etc., is one of the main solid emissions from iron and steel enterprises. In recent years, my country's iron and steel output has leapt to the first place in the world. The total amount of blast furnace gas ash pro...

Claims

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Application Information

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IPC IPC(8): C02F1/52
Inventor 李善评付敬
Owner SHANDONG UNIV
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