Check patentability & draft patents in minutes with Patsnap Eureka AI!

A kind of industrial waste slag imitating natural gypsum and its preparation method and application

An industrial waste residue, imitating natural technology, applied in the field of building materials, can solve the problems of unstable sulfur trioxide, ultra-high moisture and high cost, and achieve the effects of suitable large-scale production, low cost and simple operation

Active Publication Date: 2021-10-19
衡阳市仁礼环保科技有限公司
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing disposal methods are costly and cannot solve the problems of unstable sulfur trioxide and high moisture content in the manganese sulfate waste residue

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
  • A kind of industrial waste slag imitating natural gypsum and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0028] The present invention provides the preparation method of industrial waste slag imitation natural gypsum described in the technical scheme, comprising the following steps:

[0029] Mix fluorine gypsum, manganese sulfate waste residue and sodium sulfate waste residue, carry out industrial crystallization reaction, and obtain industrial waste residue imitating natural gypsum;

[0030] The temperature of the industrial crystallization reaction is <65°C.

[0031] In the present invention, the temperature of the industrial crystallization reaction is <65°C, more preferably 50-60°C, most preferably 55-60°C. The invention controls the temperature of the industrial crystallization reaction below 65 DEG C, and can effectively control and prevent crystallization water from being transformed into external moisture. In the present invention, during the industrial crystallization reaction process, fluorogypsum undergoes a crystallization reaction under the excitation of sodium sulfa...

Embodiment 1

[0038] Stir and mix fluorine gypsum, manganese sulfate waste residue and sodium sulfate waste residue according to the mass ratio of 4:5:1, and react at 60°C until the external moisture content meets the national standard (<10wt%). At this time, the reaction time After 5 days, the obtained coarse gypsum was crushed into granules (with a particle size of 50 mm) to obtain industrial waste slag imitating natural gypsum.

Embodiment 2

[0040] Stir and mix fluorine gypsum, manganese sulfate waste residue and sodium sulfate waste residue according to the mass ratio of 2:7:1, and react at 60°C until the external moisture content meets the national standard (<10wt%). At this time, the reaction time After 5 days, the obtained coarse gypsum was crushed into granules (with a particle size of 40 mm) to obtain industrial waste slag imitating natural gypsum.

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
particle sizeaaaaaaaaaa
particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention provides an industrial waste slag imitation natural gypsum and its preparation method and application, belonging to the technical field of building materials. The industrial waste slag provided by the invention imitates natural gypsum, and the preparation raw materials include fluorine gypsum, manganese sulfate waste slag and sodium sulfate waste slag. The present invention uses industrial waste residues such as manganese sulfate waste residue and sodium sulfate waste residue as raw materials, has a wide range of sources of raw materials, greatly improves the resource utilization rate of industrial waste residues, reduces a large amount of resources occupied by landfill industrial waste residues, has low cost, and does not produce secondary pollution; sulfuric acid The combined use of manganese waste slag and fluorine gypsum significantly reduces the cost of disposing of manganese sulfate waste slag with high external moisture; using sodium sulfate in sodium sulfate waste slag as an admixture speeds up the crystallization speed of fluorine gypsum, and the obtained industrial waste slag imitates natural gypsum. All technical indicators have reached the national standard value of natural gypsum for cement.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to an industrial waste slag imitation natural gypsum and its preparation method and application. Background technique [0002] Fluorogypsum is the main by-product in the production process of hydrofluoric acid and sodium fluoroaluminate. It mainly comes from the production process of inorganic fluoride, organic fluoride and hydrofluoric acid. Every ton of hydrofluoric acid produced produces about 3.6 tons of anhydrous Fluorogypsum. The main component of fluoride gypsum is calcium sulfate, and contains part of calcium fluoride and other fluorides, its H 2 SO 4 The high content makes the discharged fluorine gypsum acidic, which is a highly corrosive toxic and hazardous waste. Untreated fluorine gypsum cannot be disposed of directly, and it is difficult to be used. At present, the utilization rate of fluorogypsum is low, and most of it is stored as solid waste, which not ...

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): C04B7/38C04B18/04
CPCC04B7/38C04B40/0039C04B18/0445C04B18/0481Y02W30/91
Inventor 汪文杰汪德仁
Owner 衡阳市仁礼环保科技有限公司
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com