Invention Grant
- Patent Title: Method for the production of hydrotalcites
- Patent Title (中): 水滑石生产方法
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Application No.: US11741847Application Date: 2007-04-30
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Publication No.: US07897136B2Publication Date: 2011-03-01
- Inventor: Max Eisgruber , Jürgen Ladebeck , Jürgen Koy , Hubert Schiessling , Wolfgang Buckl , Herrmann Ebert
- Applicant: Max Eisgruber , Jürgen Ladebeck , Jürgen Koy , Hubert Schiessling , Wolfgang Buckl , Herrmann Ebert
- Applicant Address: DE Munich
- Assignee: Sud-Chemie AG
- Current Assignee: Sud-Chemie AG
- Current Assignee Address: DE Munich
- Agent Scott R. Cox
- Main IPC: C07F11/00
- IPC: C07F11/00

Abstract:
A method is described for the manufacture of hydrotalcites by using at least one compound of a bivalent metal (Component A) and at least one compound of a trivalent metal (Component B), wherein at least one of these components is not used in the form of a solution, characterized in that a) at least one of the Components A and/or B which is not used in the form of a solution, shortly before or during mixing of the components, and/or b) the mixture containing the Components A and B is subjected to intensive grinding until an average particle size (D50) in the range of approx. 0.1 to 5 μm is obtained, and optionally, after aging treatment or hydrothermal treatment, the resulting hydrotalcite product is separated, dried, and optionally calcinated. The hydrotalcite precursors and/or fine-particle crystalline hydrotalcites which can be obtained by using the method in accordance with this present invention may be used in particular as catalysts or catalyst carriers or as nanocomposite filling agents or co-stabilizers in a polymer matrix.
Public/Granted literature
- US20070231243A1 METHOD FOR THE PRODUCTION OF HYDROTALCITES Public/Granted day:2007-10-04
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