1 The new technology for the preparation of cryolite from fluosilicic acid and ammonium hydrocarbonate is introduced.

2 Production technology and uses of cryolite are reviewed briefly and some suggestions on market are presented.

3 The molten electrolyte bath consists principally of cryolite (sodium aluminum fluoride) plus some excess aluminum fluoride, 6 to 10 percent by weight of fluorspar and 2 to 5 percent aluminum oxide.

4 She wears a hand chain made of cryolite around her wrist.

5 At last, the formula to calculate the cryolite ratio of thealuminum electrolyte with was derived.

6 In particular, the article introduces the experiment to produce cryolite with fluosilicic acid, lists the experimental results and forecasts the prospect...

7 From the results, solution mechanism of alumina in molten cryolite was discussed.

8 Mathematic models about the relationships between liquidus temperature and their components and cryolite ratio computer.

9 A mathematic model about the relationship between liquidus temperature and cryolite ratio was simulated.

10 There are two methods, namely clay-bittern method and sodium fluosilicate method, being applied in Do-fluoride Chemicals Co. ,[] Ltd to produce cryolite.