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Method for producing inorganic macromolecule flocculant polymerization iron aluminum chloride

A polyaluminum ferric chloride, inorganic polymer technology, applied in the direction of flocculation/sedimentation water/sewage treatment, etc., can solve problems such as unindustrial utilization

Inactive Publication Date: 2008-07-09
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the production process, a large amount of acidified waste liquid is produced, which has not yet been industrialized

Method used

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  • Method for producing inorganic macromolecule flocculant polymerization iron aluminum chloride

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Embodiment Construction

[0012] A production method of polyaluminium-ferric chloride, an inorganic polymer flocculant, in which alkaline substances such as sodium hydroxide or potassium hydroxide, quicklime, and sodium carbonate are added to the acidified waste liquid produced in the process of producing activated clay from attapulgite clay Or sodium bicarbonate, stir, adjust the pH of the solution to 4.0, and heat to 80-90°C, then fully stir and react for 4-5 hours to make it polymerized to generate an inorganic polymer flocculant polyaluminum ferric chloride liquid product, this liquid After the product is matured and dried under certain conditions, it becomes a solid polyaluminum ferric chloride product. The properties of liquid products are shown in the table below

[0013] Product index comparison

[0014] project

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Abstract

The invention discloses a process using an inorganic polymer flocculating agent polymerizing aluminum chloride and iron chloride, which is characterized in that, add alkaline matter in acidated waste liquor which is produced in the process that concavo-convex rod stone and clay produce floridin, stir the solution, adjust pH of solution, heat and polymerize solution, then fully stir solution to make reaction, thereby generating an inorganic polymer flocculating agent polymerizing aluminum chloride and iron chloride. The applicable pH range is wider, and the treatment effect is better than other flocculating agent in common usage.

Description

technical field [0001] The invention belongs to the field of inorganic chemistry, and specifically relates to a production method of polyaluminum ferric chloride as an inorganic polymer flocculant. Background technique [0002] Attapulgite clay refers to a clay mineral whose main component is Attapulgite. It is a crystalline hydrated magnesium aluminum silicate mineral with a unique layer chain structure. There is lattice replacement in its structure, so the crystal contains indefinite amounts of Na+, Ca2+, Fe3+, Al, and the crystal is needle-like. shape, fibrous or fibrous aggregates. Attapulgite has good colloidal properties such as unique dispersion, high temperature resistance, salt-alkali resistance, high adsorption and decolorization ability, certain plasticity and cohesion, and is an intermediate structure between chain structure and layer structure. . Attapulgite clay is used to produce activated clay, which belongs to natural oil decolorization adsorbent. It is ...

Claims

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Application Information

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IPC IPC(8): C02F1/52
Inventor 彭书传马步春陈天虎
Owner HEFEI UNIV OF TECH
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