LIU Baoman (1995-), female, Master candidate. E-mail: mandy_lbm@163.com
A zeolite molecular sieve was synthesized with oil shale ash from Yaojie, China. The effects of liquid-solid ratio (A), crystallization time (B) and crystallization temperature (C) on the cation exchange capacity (Y) of synthesized zeolite were investigated based on the Box-Behnken Design (BBD) of a response surface method. The results show that the model established by the response surface method has a good predictability for the Y value of zeolite, and the Y value of zeolite is improved after optimization. Each factor and their interaction have effects on the Y value of synthesized zeolite, and the order of the factor effect is A, C, and B and the order of interaction effect is AC, BC, and AB. The Na-X zeolite can be synthesized under optimum conditions (i.e., alkali melting temperature of 650 ℃, ash-alkali ratio of 1∶1.7 g/g, liquid-solid ratio of 4.5∶1 mL/g, crystallization time of 25.2 h, and crystallization temperature of 83 ℃). The Y value of zeolite synthesized under optimum conditions is 52.44 mg/g.
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |