1. W - pyrophyllite is used as pressure medium for high temperature and high pressure synthesis of diamond.

2. Activated pyrophyllite obtained from pyrophyllite treated with a silane coupling reagent has a simple chemical composition, stable structure, fine grainsize and narrow range of grainsize distribution.

3. Pyrophyllite is a key assistant material in production of synthetic diamond.

4. The deformation properties of pyrophyllite powder compact after peak stress were changed from strain softening to ideal plasticity .

5. Non - metallic minerals are granite , clay, pyrophyllite, alunite and so on.

6. The thermal expansion parameter of pyrophyllite mineral should close to that of the impurity minerals and show intertexture structure.

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7. In the spectrum of pyrophyllite containing more quartz the absorption band tends to damp or vanish.

8. The floatability of pyrophyllite is best among three aluminosilicate minerals by using 1228 as the collector.

9. Pyrophyllite is the most common seal, pressure transfer and heat preservation, insulation material in domestic at present.

10. Now, the new used methods and study scopes of pyrophyllite are researching, such as genetic mineralogy and type classify of pyrophyllite.

11. The results show that the digestion rate of kaolinite(), illite and pyrophyllite in aluminate solution is influenced by reaction conditions such as temperature.

12. There are two basic vibration forms in the infrared spectrum of pyrophyllite.

13. The dynamics model was tested with professional finite element analysis software and an initial imitation and calculation were carried out on the plastic behavior of pyrophyllite under high pressure.

14. Different results of synthesizing cBN monocrystal with common and composite pyrophyllite as well as the influence of pyrophyllite roasting technologies on cBN monocrystal were studied in the paper.

15. The vertical miler mills applied to producing non-metallic minerals such as ground calcium carbonate, barite, pyrophyllite and others were discussed.

16. Influences of phosphates on the dispersion of diaspore, kaolinite , illite and pyrophyllite were systematically investigated by sedimentation experiments.

17. The correlation between sealing performance and pressure conduction of pyrophyllite was discussed according to calculation result and error of finite element imitation.

18. A minor unknown mineral with leaf shape is determined as pyrophyllite using scanning electronic microscope.

19. The scanning electron photomicrograph of aluminosilicate particle shows that the pyrophyllite particles take the shape of thin slice, but illite and kaolinite are particles with irregular appearance.

20. The effect of four small-molecule organic regulator to three single minerals such as diaspore, pyrophyllite and kaolinite was investigated using sodium oleate as collector.

21. The numerical analysis results of the pressure distribution inside the pyrophyllite block were presented and the effect of the roasting temperature on the pressure-transmitting beh.

22. Petrographic examination under the microscope showed that this kind of sillimanite is formed directly from the decomposition of pyrophyllite.