Method for the production of water purifying substances

Compositions – Water-softening or purifying or scale-inhibiting agents – Water-insoluble base-exchange agent containing

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252175, 252 80, 501 80, C02F 142

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054476534

ABSTRACT:
Water purifying substances produced by mixing raw material soil containing allophane expressed by:

REFERENCES:
patent: 4724078 (1988-02-01), Auriol et al.
patent: 4758538 (1988-07-01), Satoh et al.
patent: 4965230 (1990-10-01), Nakajima et al.
Patent Abstracts of Japan, vol. 15, No. 227 (C-0839); Jun. 10, 1991 of JP-A-30 068 445 (Mar. 25, 1991).
Database WPI, AN 92-172416 of JP-A-4110 035 (Apr. 10, 1992).
Database WPI, AN 88-067440 of JP-A-63 021 113 (Jan. 28, 1988).
Patent Abstracts of Japan, vol. 15, No. 289 (C-0852); Jul. 23, 1991 of JP-A-31 001 834 (Apr. 26, 1991).

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