Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Improved method for measuring concentration of amine cation-collecting agent

A cationic collector and concentration determination technology, which is applied in the direction of material analysis by observing the influence of chemical indicators, and analysis by making materials undergo chemical reactions, can solve the problem of cumbersome manual extraction process, incomplete extraction, chromatographic equipment, etc. Expensive and other issues, to achieve the effect of easy operation and promotion, reduce labor intensity, and prevent solution overflow

Inactive Publication Date: 2012-01-11
WUHAN UNIV OF TECH
View PDF0 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its chloroform consumption is bigger, and environmental pollution is more serious, and artificial extraction process is loaded down with trivial details, and extraction is incomplete, and extract will leak into the environment, also can be harmful to human body and environment, and the correlation degree of standard curve is low also unstable, and Drugs used are expensive
[0004] There are also liquid chromatography or gas chromatography-mass spectrometry for quantitative determination of cationic surfactants, but the price of the chromatography is relatively expensive

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
  • Improved method for measuring concentration of amine cation-collecting agent
  • Improved method for measuring concentration of amine cation-collecting agent
  • Improved method for measuring concentration of amine cation-collecting agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050]Prepare dodecylamine collector standard solution, take 5mL in a 100mL stoppered measuring cylinder, add 15mL distilled water to dilute the solution, add 1 drop of 1.45N sulfuric acid solution, add 10mL of buffer solution, shake well, add bromophenol blue indicator 1mL . The stoppered measuring cylinder was placed in a SK-1 type rapid mixer to vibrate for 1 min and then left for 5 min. Then add 10mL of chloroform, place in SK-1 type fast mixer and vibrate for 3min, and then centrifuge in LXJ-IIB type low-speed large-capacity multi-tube centrifuge at 3000r / min for 10min to make layers. Take 1 dry and clean separating funnel and 2 dry and clean glass cuvettes, add the two-phase liquid in the shaking container into the separating funnel, use chloroform as a reference, put the extracted liquid in the separating funnel In the cuvette, measure its visible spectrum figure in UV-3000PC type ultraviolet-visible spectrophotometer, figure 1 It is the visible spectrum of dodecylami...

Embodiment 2

[0052] Prepare 10mg / L dodecylamine collector standard solution, then take 0mL, 1mL, 2mL, 3mL, 4mL, 5mL of the solution into 100mL stoppered measuring cylinder, add distilled water 20mL, 19mL, 18mL, 17mL, 16mL, 15mL respectively Dilute the solution. Add 1 drop of 1.45N sulfuric acid solution, add 10 mL of buffer solution, shake well, and add 1 mL of bromophenol blue indicator. The stoppered measuring cylinder was placed in a SK-1 type rapid mixer to vibrate for 1 min and then left for 5 min. Then add 10mL of chloroform, place in SK-1 type fast mixer and vibrate for 3min, and then centrifuge in LXJ-IIB type low-speed large-capacity multi-tube centrifuge at 3000r / min for 10min to make layers. The extracted chloroform solution was separated by a separatory funnel, and its absorbance was measured at 412 nm with chloroform as a reference. Such as figure 2 The standard curve measured as shown is y=0.2016x+0.0139, R 2 =0.9955, its linear correlation coefficient R 2 >0.99, where ...

Embodiment 3

[0054] The preparation concentration is 4×10 -4 mol / L dodecylamine flotation agent, take 40mL in a 100mL beaker, add 2g of chlorite with a 500-mesh stopper to absorb it, put a small magnet in the beaker, and place it in a 78-1 magnetic heating stirrer Stir in the medium for 30 minutes, let stand for 10 minutes, take 10ml of the supernatant in 3 centrifuge tubes, and centrifuge at a speed of 4000r / min in a GENIUS 16K desktop high-speed centrifuge. Take 5mL of the centrifuged supernatant and transfer it into three 100mL stoppered measuring cylinders, then add 15mL of distilled water to dilute the solution, add 1 drop of 1.45N sulfuric acid solution, add 10mL of buffer solution, shake well, and then add bromophenol blue indicator dose 1mL. Place the stoppered measuring cylinder in the SK-1 type rapid mixer to vibrate for 1min, and place it for 5min. Then add 10mL of chloroform, place in SK-1 type fast mixer and vibrate for 3min, and then centrifuge in LXJ-IIB type low-speed lar...

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

PropertyMeasurementUnit
absorption wavelengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses an improved method for measuring the concentration of an amine cation-collecting agent. The improved method mainly comprises: performing complex reaction of bromophenol blue and the amine cation-collecting agent by using an oscillation container and dynamic oscillation equipment; performing chloroform extraction on the color complex after the reaction; and measuring the concentration of the amine cation-collecting agent by spectrophotometry. The method comprises the steps of reagent preparation, complex reaction and extraction process of the amine cation-collecting agent, absorbance measurement and result analysis. The method adopts common and cheap appliances, the method has the advantages of simple, convenient and rapid operation, convenient popularization, accurate and stable analysis method and the like.

Description

technical field [0001] The invention relates to the technical field of flotation agents / environmental inspection and determination in chemistry and metallurgy, in particular to an improved method for measuring the concentration of amine cationic collectors in mine flotation agents. Background technique [0002] There are few reports on the concentration determination of amine cationic collectors at home and abroad, and there are many problems that need to be improved urgently. It is mentioned in the literature that bromophenol blue is used to complex cationic surfactants, and then use chloroform to extract the spectrophotometric method to determine its concentration, but the artificial complexation and extraction process is cumbersome, and the extraction is not complete, and the extract will leak into the environment Among them, it is harmful to human body and environment, and its standard curve correlation is low and unstable, and the effect is not satisfactory. [0003] T...

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
Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/78
Inventor 龚文琪刘晓烨梅光军鄢恒珍陈琛
Owner WUHAN UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com