TN2009000165A1 - An improved process for the production of sulfuric acid and cement from gypsum - Google Patents

An improved process for the production of sulfuric acid and cement from gypsum

Info

Publication number
TN2009000165A1
TN2009000165A1 TNP2009000165A TN2009000165A TN2009000165A1 TN 2009000165 A1 TN2009000165 A1 TN 2009000165A1 TN P2009000165 A TNP2009000165 A TN P2009000165A TN 2009000165 A TN2009000165 A TN 2009000165A TN 2009000165 A1 TN2009000165 A1 TN 2009000165A1
Authority
TN
Tunisia
Prior art keywords
gypsum
cement
sulfuric acid
production
kiln
Prior art date
Application number
TNP2009000165A
Other languages
French (fr)
Inventor
Feng Jiutian
Feng Yisheng
Liu Xigang
Wang Yurui
Lv Tianbao
Original Assignee
Shandong Lubei Entpr Group Company
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shandong Lubei Entpr Group Company filed Critical Shandong Lubei Entpr Group Company
Priority to TNP2009000165A priority Critical patent/TN2009000165A1/en
Publication of TN2009000165A1 publication Critical patent/TN2009000165A1/en

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding

Landscapes

  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

The invention relates to an improved process for the production of sulfuric acid and cement from gypsum, pertaining to the fields of production technology of sulfuric acid and cement, comprehensive utilization of industrial by-product gypsum resources and protection and treatment of the environment. The process is characterized in that, it uses natural or by-product gypsum containing CaSO4•2H2O as main component as the major raw material, and clay, coke and coal ash as adjuvant, and adopts the technologies including semi-hydrate stoving procedure of gypsum, single-stage grinding, raw meal mixing, decomposition and calcination in kiln with suspension preheater, electrostatic dust collecting at the kiln end, enclosed scrubbing and purifying with dilute acid and double-conversion double-absorption process to provide sulfuric acid and cement through 6 procedures comprising raw material homogenization, stoving and dehydration, raw meal preparation, clinker calcination, producing acid from kiln gas and cement grinding. The process has the following advantages: various raw materials can be used, and thus the dumping area of the gypsum slag and the contamination to environment are eliminated, and comprehensive utilization of sulfur resources is achieved; various new technologies and new equipments are adopted in the invention, such that large-scale production can be realized; the technology and process are advanced, and thus the process can be easily controlled; energy consumption is low, while the economic benefit is high, and no waste water and slag is discharged.
TNP2009000165A 2009-04-29 2009-04-29 An improved process for the production of sulfuric acid and cement from gypsum TN2009000165A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TNP2009000165A TN2009000165A1 (en) 2009-04-29 2009-04-29 An improved process for the production of sulfuric acid and cement from gypsum

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TNP2009000165A TN2009000165A1 (en) 2009-04-29 2009-04-29 An improved process for the production of sulfuric acid and cement from gypsum

Publications (1)

Publication Number Publication Date
TN2009000165A1 true TN2009000165A1 (en) 2010-10-18

Family

ID=54696010

Family Applications (1)

Application Number Title Priority Date Filing Date
TNP2009000165A TN2009000165A1 (en) 2009-04-29 2009-04-29 An improved process for the production of sulfuric acid and cement from gypsum

Country Status (1)

Country Link
TN (1) TN2009000165A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110156359A (en) * 2019-06-17 2019-08-23 长沙紫宸科技开发有限公司 With the method for dry-process rotary kilns factory transition consumption ardealite producing building land plaster
CN114716166A (en) * 2022-04-18 2022-07-08 安丘市华星机械设备有限公司 Automatic drying system that calcines of gypsum

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110156359A (en) * 2019-06-17 2019-08-23 长沙紫宸科技开发有限公司 With the method for dry-process rotary kilns factory transition consumption ardealite producing building land plaster
CN114716166A (en) * 2022-04-18 2022-07-08 安丘市华星机械设备有限公司 Automatic drying system that calcines of gypsum

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