Novel technique for producing sulfur from industrial waste gypsum
A technology of industrial waste gypsum and gypsum production, which is applied in the preparation/purification of sulfur, cement production, etc., can solve the problems of small investment, complicated equipment, waste of resources, etc., achieve significant social and economic benefits, and facilitate environmental protection standards and protection environmental effects
Active Publication Date: 2009-07-01
长沙紫宸科技开发有限公司
0 Cites 34 Cited by
AI-Extracted Technical Summary
Problems solved by technology
View more
Abstract
The invention provides a novel process for preparing sulfur from industrial waste gypsum, which is to manufacture the sulfur or manufacture sulfur and by-product cement by reducing the industrial waste gypsum and carbon reduced materials. The industrial waste gypsum is waste gypsum residue discharged by production of phosphogypsum, desulfurization gypsum, fluorgypsum, citric acid gypsum and titanium pigment or waste residue which is discharged in industrial production and regards calcium sulphate as a main composition; and the carbon reduced materials can be coal, coke, petroleum residue or bitumen. The reduction process adopts a sulfur preparation process by one-stage or multi-stage reduction, and tail gas adopts a reducing and purifying process by one-stage or multi-stage catalysis. Theprocess can sufficiently utilize the industrial waste gypsum and manufacture the by-product cement, has the advantages of small investment, low cost, simple process, environmental protection and resource conservation, changes waste into valuable, and has significant social benefit and economic benefit.
Application Domain
Sulfur preparation/purificationCement production
Technology Topic
Industrial wasteNovel technique +20
Image
Examples
- Experimental program(3)
Example Embodiment
Example Embodiment
Example Embodiment
PUM
Property | Measurement | Unit |
Compressive strength | 27.3 | mPa |
Compressive strength | 48.9 | mPa |
Description & Claims & Application Information
We can also present the details of the Description, Claims and Application information to help users get a comprehensive understanding of the technical details of the patent, such as background art, summary of invention, brief description of drawings, description of embodiments, and other original content. On the other hand, users can also determine the specific scope of protection of the technology through the list of claims; as well as understand the changes in the life cycle of the technology with the presentation of the patent timeline. Login to view more.
Similar technology patents
Image sensor and method of manufacturing the same
Owner:SAMSUNG ELECTRONICS CO LTD
Ammonium polyphosphate, montmorillonite nano complex and preparation thereof
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY
Treating method for oily sludge
Owner:安徽省通源环境节能股份有限公司
Method for preparing superhydrophobic coating by adopting supersonic electric arc spaying technique
Owner:NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
Classification and recommendation of technical efficacy words
- Simple process
- less investment
Multimedia data recording apparatus, monitor system, and multimedia data recording method
Owner:PANASONIC INTELLECTUAL PROPERTY CORP OF AMERICA
Simultaneously desulfurization and denitration wet ammonia flue gas cleaning technology and system thereof
Owner:WUHAN KAIDI ELECTRIC POWER ENVIRONMENTAL
Method for recycling metal oxide from waste flue gas denitration catalyst
Owner:HUADIAN ELECTRIC POWER SCI INST CO LTD
Method for preparing graphite alkyne film
Owner:INST OF CHEM CHINESE ACAD OF SCI