Method for producing polyaluminium chloride

A technology of polyaluminum chloride and its production method, which is applied in the fields of aluminum chloride, aluminum halide, flocculation/precipitation water/sewage treatment, etc., can solve the problems of high water insoluble content, low salinity, and high manufacturing cost, and achieve Low water-insoluble content, wide range of applications, and reduced manufacturing costs

Active Publication Date: 2011-05-25
蓝保(厦门)水处理科技有限公司
View PDF0 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These manufacturing methods generally have the following three disadvantages: one is that the raw materials used are conventional chemical raw materials, resulting in relatively high manufacturing costs; The prod

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for producing polyaluminium chloride

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] A kind of production method of polyaluminum chloride of the present invention, comprises the steps:

[0018] In an acid-resistant, steam-heated reaction vessel with a stirring device, start stirring, add water and hydrochloric acid, prepare a hydrochloric acid solution with a volume concentration of 22%, raise the temperature to 65°C under normal pressure, and start adding aluminum-containing waste residue. Raise the temperature, after the aluminum-containing waste residue is added, the temperature of the feed liquid system is controlled at 95°C, and the reaction is carried out under normal pressure for 4 hours; the feed liquid after the reaction is filtered to remove waste residue impurities, and the mother liquor is taken into the acid-proof, steam Heat the reaction vessel, start stirring, add an appropriate amount of water, and start adding calcium aluminate powder. After feeding, adjust the density of the feed liquid to ≥ 1.20g / ml with water, and then add synergist. ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a method for producing polyaluminium chloride, which comprises the following steps: adding aluminum-containing waste residue into solution of hydrochloric acid and reacting at 90 to 120 DEG C and under a normal pressure for 3 to 5 hours; filtering, collecting mother solution, filling the mother solution into an acid-resistance and vapor-heated reactor with a stirring device, starting stirring, supplying a proper amount of water, starting to add calcium aluminate powder, and after the addition is finished, regulating the density of feed liquid to more than or equal to 1.20g/ml with water; and adding a synergist, heating and keeping the temperature between 90 and 120 DEG C, reacting at normal temperature for 3 to 5 hours, and obtaining finished liquid polyaluminium chloride. Compared with the prior art, the method, which uses aluminum-containing waste residue obtained after the neutralization of waste liquid from surface pickling of aluminum ingots and bands as raw material, reduces the manufacturing cost of polyaluminium chloride, recycles aluminum-containing waste residue and is in accordance with the environmental-protection concept of energy conservationand emission reduction.

Description

technical field [0001] The invention relates to a production method of polyaluminum chloride. Background technique [0002] With the rapid development of industrial production, the pollution of water resources is increasing, which leads to the increasing shortage of drinking water resources. There are many types of pollutants in water, and the water contains a large number of toxic and harmful substances. They are absorbed by soil, animals and plants, or directly passed through Drinking water enters the human body and causes long-term harm to humans. Therefore, how to purify water resources has become a very urgent problem. [0003] Polyaluminum chloride is a high-efficiency inorganic polymer coagulant, which has the advantages of high efficiency, low consumption, low price, and convenience. Its water purification effect far exceeds other water purification agents such as ferric chloride and aluminum sulfate. In the prior art, the manufacture of polyaluminum chloride usuall...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C01F7/56C02F1/52
Inventor 吕奋志吕奋勇王志巍
Owner 蓝保(厦门)水处理科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap