Invention Grant
- Patent Title: Industrial process for the production of a clinker with a high content of belite
- Patent Title (中): 生产具有高含量的熟料的工业过程
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Application No.: US13375640Application Date: 2010-06-07
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Publication No.: US08852339B2Publication Date: 2014-10-07
- Inventor: Gunther Walenta , Cédric Comparet , Vincent Morin
- Applicant: Gunther Walenta , Cédric Comparet , Vincent Morin
- Applicant Address: FR Paris
- Assignee: Lafarge
- Current Assignee: Lafarge
- Current Assignee Address: FR Paris
- Agency: Pillsbury Winthrop Shaw Pittman LLP
- Priority: FR0902938 20090617
- International Application: PCT/FR2010/051115 WO 20100607
- International Announcement: WO2010/146281 WO 20101223
- Main IPC: C04B7/34
- IPC: C04B7/34 ; C04B7/32 ; C04B7/345

Abstract:
The present invention relates to a process for the production of a clinker with a high content of belite, said process comprising the following steps: (i) introducing a raw meal into a calcination chamber of a cement plant kiln; (ii) calcining the raw meal at a temperature of from 1150° C. to 1375° C.; (iii) measuring the weight per liter of the product of step (ii) and eliminating the product having a weight per liter strictly less than 650 g/liter; (iv) measuring the quantity of SO3 in the product of step (ii) and eliminating the product having a ratio of quantity of SO3 of the decarbonated raw meal/quantity of SO3 in the product of step (ii) less than or equal to 0.75 and greater than or equal to 1.2; (v) measuring the quantity of free lime (CaOl) in the product of step (ii) and eliminating the product having a quantity of free lime strictly greater than 1.5%, percentage by mass of free lime in the product of step (ii).
Public/Granted literature
- US20120085265A1 INDUSTRIAL PROCESS FOR THE PRODUCTION OF A CLINKER WITH A HIGH CONTENT OF BELITE Public/Granted day:2012-04-12
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