Claims
- 1. In a process of recovering gallium tichloride from gallium-containing waste comprising chlorination gallium-containing waste to form a chlorination product including elements of low-boiling-point chlorides contained in the gallium-containing waste, separating and collecting gallium trichloride from the chlorination product by fractional distillation, the improvement comprising carrying out said chlorination of gallium waste initially in the presence of gallium tichloride and simultaneously removing the produced low-boiling-point chlorides of elements contained in the gallium-containing waste.
- 2. The process as set forth in claim 1, wherein the chlorination is carried out at a temperature of from 130.degree. to 200.degree. C.
- 3. The process as set forth in claim 1, wherein the recovered gallium trichloride is purified by rectification.
- 4. The process as set forth in claim 1, wherein the gallium-containing waste is GaAs waste or GaP waste.
Priority Claims (1)
Number |
Date |
Country |
Kind |
61-294914 |
Dec 1986 |
JPX |
|
Parent Case Info
This is a continuation of copending application Ser. No. 131,117 filed Dec. 10, 1987, now abandoned.
US Referenced Citations (3)
Foreign Referenced Citations (4)
Number |
Date |
Country |
1094328 |
Jan 1981 |
CAX |
56-38661 |
Sep 1981 |
JPX |
57-101625 |
Jun 1982 |
JPX |
62-153120 |
Jul 1987 |
JPX |
Continuations (1)
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Number |
Date |
Country |
Parent |
131117 |
Dec 1987 |
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