发明名称 |
MATERIALS FOR GROWING ALGAE AND ARTIFICIAL REEFS |
摘要 |
Vitreous materials for growing algae from which ferric ions can be stably eluted over a long time while regulating the elution time to the desired period by controlling the particle size thereof; materials for growing algae prepared by molding the above-mentioned materials into porous ones; and artificial fishing banks involving these materials as at least a part of the same. These materials are characterized by containing as the major components from 15 to 50 %, on the weight basis, of SiO2, from 1 to 35 % of either or both of Na2O and K2O, from 30 to 70 % of B2O3, and from 1 to 40 % of either or both of Fe O and Fe2O3 a nd ferric ions can be easily eluted therefrom owing to the elevated boron content thereof.
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申请公布号 |
CA2274104(C) |
申请公布日期 |
2003.02.25 |
申请号 |
CA19972274104 |
申请日期 |
1997.12.04 |
申请人 |
TOYO GLASS COMPANY LIMITED;TETRA CO., LTD. |
发明人 |
HORIKAWA, KEIKO;SAIKI, MASAMICHI;SENNOU, YASUNORI;WATANUKI, AKIRA;KITAO, SHUUJI;AOTA, TORU;HIROSE, NORIKAZU |
分类号 |
A01G33/00;(IPC1-7):A01G33/00 |
主分类号 |
A01G33/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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