Preparation method and application of PCAMT (polymeric aluminium magnesium titanium chloride)

A technology of polyaluminum magnesium chloride and aluminum chloride, which is applied in chemical instruments and methods, water/sewage treatment, flocculation/sedimentation water/sewage treatment, etc. The problem of large dosage and other problems can achieve the effect of good turbidity removal and decolorization, good coagulation effect and fast floc settling speed.

Inactive Publication Date: 2018-06-19
HUNAN UNIV OF SCI & TECH
View PDF4 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention aims at that when the existing aluminum coagulant is used as a sewage treatment agent, the dosage of the agent is large, the effect of sewage treatment is not obvious, the flocs produced are relatively fragile, and are easily broken when the water body is disturbed, and the sedi

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
  • Preparation method and application of PCAMT (polymeric aluminium magnesium titanium chloride)
  • Preparation method and application of PCAMT (polymeric aluminium magnesium titanium chloride)
  • Preparation method and application of PCAMT (polymeric aluminium magnesium titanium chloride)

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0025] A preparation method of polyaluminum magnesium titanium chloride includes the following steps:

[0026] (1) Take aluminum chloride hexahydrate and deionized water and fully stir and dissolve to obtain a colorless and transparent solution, prepare the aluminum chloride solution with a concentration of 0.1 to 0.3 mol / L, take magnesium chloride hexahydrate and deionized water, and fully stir and dissolve it. Colorless and transparent solution, prepared into a magnesium chloride solution with a concentration of 0.05 to 0.2mol / L;

[0027] (2) According to the molar ratio of Mg / Al of 0.1 to 0.6:1, the aluminum chloride and the magnesium chloride solution obtained in step (1) are mixed to obtain the aluminum magnesium chloride solution, which is placed in a refrigerator at a temperature of -20 to 5 Place it at ℃ for 20-30 minutes and then take it out. According to the molar ratio of Ti / Al of 0.1-0.6:1, pipette 0.11-0.66 mL of titanium tetrachloride liquid into the aluminum magnesiu...

Example Embodiment

[0034] Example 1

[0035] (1) Weigh 2.4163g of white crystals of aluminum chloride hexahydrate and 0.6099g of white crystals of magnesium chloride hexahydrate and dissolve them in 60 mL of deionized water, fully stir to dissolve them to obtain a colorless and transparent aluminum magnesium chloride solution;

[0036] (2) Place the obtained colorless and transparent aluminum magnesium chloride solution in a refrigerator at -10°C for 20 minutes and then take it out;

[0037] (3) According to the Ti / Al molar ratio of 0.3, pipette 0.33 mL of titanium tetrachloride liquid into the aluminum magnesium chloride solution obtained in step (2) to obtain the aluminum magnesium titanium chloride solution.

[0038] (4) According to the molar ratio of n(OH) / n(Al+Mg+Ti) as 0.4, dropwise add 2mol / L sodium hydroxide (NaOH) solution to the mixed solution in (3), and add dropwise After completion, stirring was continued for 2 hours in a constant temperature water bath at 60°C.

[0039] (5) The aluminum-ma...

Example Embodiment

[0044] Example 2

[0045] (1) Weigh 2.4163g white crystals of aluminum chloride hexahydrate and 1.0165g magnesium chloride hexahydrate

[0046] Dissolve the white crystals in 60 mL of deionized water, fully stir to dissolve to obtain a colorless and transparent aluminum magnesium chloride solution;

[0047] (2) Place the obtained colorless and transparent aluminum magnesium chloride solution in a refrigerator at -15°C for 25 minutes and then take it out;

[0048] (3) According to the Ti / Al molar ratio of 0.5, pipette 0.55 mL of the titanium tetrachloride liquid into the aluminum magnesium chloride solution obtained in step (2) to obtain the aluminum magnesium titanium chloride solution.

[0049] (4) According to the molar ratio of n(OH) / n(Al+Mg+Ti) as 0.6, add dropwise sodium hydroxide (NaOH) solution with a concentration of 2mol / L to the mixed solution in (3), and add dropwise After completion, stirring was continued for 2 hours in a constant temperature water bath at 60°C.

[0050] (5...

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 preparation method and an application of PCAMT (polymeric aluminium magnesium titanium chloride). The preparation method comprises the following steps: an aluminium chloridesolution and a magnesium chloride solution are prepared and mixed in the mole ratio of Mg/Al being 0.1-0.6:1, an aluminium magnesium chloride solution is obtained, placed in a refrigerator for 20-30min and taken out, 0.11-0.66 mL of a titanium tetrachloride liquid is pipetted to the aluminium magnesium chloride solution in the mole ratio of Ti/Al being 0.1-0.6:1, the mixed solution is sufficiently stirred and uniformly mixed, an aluminium magnesium titanium chloride solution is obtained, a sodium hydroxide solution with concentration being 2 mol/L is added dropwise to the aluminium magnesiumtitanium chloride solution, the mixed solution is stirred and mixed uniformly during addition, thermostatic water bath and continuous stirring are performed after addition, curing is performed in a light avoiding manner at room temperature, and PCAMT is obtained. The process is simple, the cost is low, an obtained composite polymeric coagulant has better charge neutralizing and adsorption bridging effects on pollutants, and the coagulation effect is better.

Description

technical field [0001] The invention relates to a preparation method and application of polyaluminium-magnesium-titanium chloride, belonging to the technical field of water treatment. Background technique [0002] With the rapid development of industry and agriculture and the rapid increase of population, the water resources that human beings depend on for survival are becoming increasingly scarce, and the water resource crisis is becoming more and more serious. At present, water pollution and water shortage are becoming more and more important factors restricting economic development. In order to save water resources, improve water utilization, reduce and eliminate the harm caused by water pollution to human beings and the environment, water treatment must be strengthened. Coagulation technology is the most commonly used treatment technology unit in water pollution control, water purification treatment, sewage (waste) water advanced treatment and reuse, and sludge dehydrat...

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): C02F1/52
CPCC02F1/5236
Inventor 张鹏赵冬琴张艳君
Owner HUNAN UNIV OF SCI & TECH
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