Citation: Xue Jing Yang, Ya Ling Yang, Wei Zhen, Mou Sheng Liu, Jun Hong Chai. Synthesis and characterization of Al doped δ-laminar crystal sodium silicate[J]. Chinese Chemical Letters, ;2009, 20(4): 462-464. doi: 10.1016/j.cclet.2008.12.032 shu

Synthesis and characterization of Al doped δ-laminar crystal sodium silicate

a Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650224, China bKunming Fruit Business and Economics Co. Ltd., Kunming 650106, China

Received Date: 1 July 2008

An modified laminar crystal sodium silicate (Al-SKS-6) was synthesized by spray drying and high temperature crystallization using sodium silicate as silicon source, Al atom as inorganic source and hexadecyltrimethy ammonium bromide (CTMAB) as the structure template. The hydrothermal stability of product was at least 1 h. The synthesized material was characterized by XRD and SEM. The results indicated that shape and intensity of XRD diffraction peak at 2θ took changes, but raw material δ phase crystal form kept unchanged, and assured high Ca²⁺ and Mg²⁺ binding capacity of the products. The Ca²⁺ and Mg²⁺ binding capacity of product is up to 380 mg Ca/g and 410mg Mg/g respectively. It was found that the hole of product became smaller and appeared rod structure based on SEM. The hydrothermal stability was increased due to the pillaring of Al atom.
- Al doping,
- δ-Laminar crystal sodium silicate,
- Detergent builder,
- Stability
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