Q1 Research Application · Frontier Focus

Microwave-enhanced selective leaching calcium from steelmaking slag to fx CO2 and produce high value-added CaCO3

This Separation and Purifcation Technology paper (2024) is indexed as a Xianghu equipment application case for XH-300PE.

View DOI Back to Library Chinese Solution
Paper ID 539
Application Focus Steel-slag valorization, CO2
Key Result See key results below
Core Condition Temperature 80 ℃ / 70 ℃
Paper ID
539
Journal
Separation and Purifcation Technology
Impact Factor
8.6
CAS Zone
Zone 1
Year
2024
DOI
10.1016/j.seppur.2023.125395
Equipment Model
XH-300PE
Affiliations
Central South University
Research Directions
Steel-slag valorization CO2

Fact Snapshot

  • Paper: Microwave-enhanced selective leaching calcium from steelmaking slag to fx CO2 and produce high value-added CaCO3
  • Equipment: XH-300PE
  • Source: Separation and Purifcation Technology, 2024
  • Research direction: steel-slag valorization and CO2
  • Core conditions: Temperature 80 ℃ / 70 ℃, Ultrasonic power 400 W, and Time 15 min

Research Abstract

Microwave-enhanced selective leaching calcium from steelmaking slag to fx CO2 and produce high value-added CaCO3 was published in Separation and Purifcation Technology (2024) and is indexed as a Xianghu Q1 application case for XH-300PE. The structured source links this paper to steel-slag valorization and CO2. Core operating conditions include Temperature 80 ℃ / 70 ℃, Ultrasonic power 400 W, and Time 15 min. The DOI recorded for this paper is 10.1016/j.seppur.2023.125395.

Research Background and Problem

The paper is positioned around steel-slag valorization and CO2. The equipment record identifies XH-300PE as the Xianghu instrument context for this application case. The source affiliation record includes Central South University.

Equipment Use and Experimental Conditions

ItemParameter
Temperature80 ℃ / 70 ℃
Ultrasonic power400 W
Time15 min

Evidence Details

Activation-energy evidence

Activation-energy evidence: source values include 20 %, 400 W, 70 °C, 15 min.

Equipment-detail evidence

Equipment-detail evidence: source values include 0–1000 W. Entities: XH-300PE.

Source evidence

High selectivity for leaching Ca and Mg can be attained under the conditions of 0.5 M HAc, a reaction temperature of 60 ℃, a reaction time of 30 min, a stirring rate of 300 r/min, a solid-to-liquid ratio of 25 g/L, and a microwave power of 600 W.

Microwave-method evidence

Microwave-method evidence: source values include 60 °C, 30 min, 25 g, 0.132 mol/L.

Source evidence

The synthesis of calcium carbonate whiskers with aspect ratios ranging from 8 to 40 can be achieved by carefully controlling the solution’s pH to 9.1, maintaining a reaction temperature of 70 ℃, and sustaining a CO2 concentration of 25 %. The cumulative impurity content in the product is below 4.3 × 10-5 wt%, while its whiteness exceeds 99.

Additional source evidence

Additional source evidence: source values include 10 %, 200 W. Entities: JP-040.

Condition evidence

Temperature: 80 ℃ / 70 ℃

Mechanism / Method Highlights

  • Method context: Temperature 80 ℃ / 70 ℃, Ultrasonic power 400 W, and Time 15 min.
  • Activation-energy evidence: source values include 20 %, 400 W, 70 °C, 15 min
  • Equipment-detail evidence: source values include 0–1000 W. Entities: XH-300PE
  • Source evidence: High selectivity for leaching Ca and Mg can be attained under the conditions of 0.5 M HAc, a reaction temperature of 60 ℃, a reaction time of 30 min, a stirring rate of 300 r/min, a solid-to-liquid ratio of 25 g/L, and a microwave power of 600 W

Application Value

  • Positions XH-300PE in a peer-reviewed Q1 research application.
  • Records source affiliations: Central South University.

Related Equipment

XH-300PE High-Pressure Ultrasonic-Microwave Collaborative Workstation
XH-300PE High-Pressure Ultrasonic-Microwave Collaborative Workstation

FAQ

Which Xianghu instrument is covered by this page?
The structured source records XH-300PE for this paper.
What is the main application direction?
The source tags this paper under steel-slag valorization and CO2.
Which publication does this case come from?
It comes from Separation and Purifcation Technology (2024), DOI 10.1016/j.seppur.2023.125395.
Citation
Microwave-enhanced selective leaching calcium from steelmaking slag to fx CO2 and produce high value-added CaCO3
Separation and Purifcation Technology, 2024
DOI: 10.1016/j.seppur.2023.125395