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Dowa Mining Co., Ltd. Patents |
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Assignee: Dowa Mining Co., Ltd.
Address: Chiyoda-Ku, JP
No. of patents: 202
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 4101286 |
Bubble forming device having no moving parts |
July 18, 1978 |
| A bubble-forming device for gas-liquid contact which can be advantageously used for air oxidation in a liquid phase comprising a housing divided into upper and lower chambers by a partition having an orifice, a liquid inlet in the lower chamber, a gas inlet in the lower chamber having a |
| 3951646 |
Process to make brittle boiler dust adhering to the water tube surface of a waste heat boiler of |
April 20, 1976 |
| The invention of this application relates to a process for making brittle boiler dust adhering to the water tube surface of a waste heat boiler of a non-ferrous metal smelting furnace by addition to the dust one kind of fine-powder or mixed fine-powder selected from compounds of magnesiu |
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