PRODUCTION OF HYDRATED SODIUM TRIPOLYPHOSPHATE

    公开(公告)号:CA968924A

    公开(公告)日:1975-06-10

    申请号:CA119975

    申请日:1971-08-06

    Applicant: HOECHST AG

    Abstract: 1326974 Sodium tripolyphosphate KNAPSACK AG 2 Aug 1971 [10 Aug 1970] 36147/71 Heading C1A Sodium tripolyphosphate hydrated to more than 75 % of the water of hydration in the hexahydrate and having an apparent density of 400-600 g/litre is produced by spraying the stoichiometrically corresponding amount of water on to sodium tripolyphosphate (apparent density > 800 g/litre) containing 50% to 80% of phase I fluidized by a stream of gas which gas also dissipates reaction heat. Ground tripolyphosphate may be used as starting material. In the Example from 77À3-82À3 wt. per cent sodium tripolyphosphate (apparent density = 1010 g/litre) was sprayed with water in fluidized air mixers. Sieve analysis for the products are given in the specification.

    CLEA, EXPANDABLE, FLAME-RETARDANT COATING COMPOSITIONS

    公开(公告)号:CA2137111A1

    公开(公告)日:1995-06-22

    申请号:CA2137111

    申请日:1994-12-01

    Applicant: HOECHST AG

    Abstract: The clear, expandable, flame-retardant coating compositions comprise at least from 10 to 70% by weight of a film-forming binder, from 0 to 40% by weight of at least one substance which is carbonized under the effect of heat, from 0 to 40% by weight of an expansion agent, from 0 to 5% by weight of dispersants and from 0 to 25% by weight of fillers. In these compositions, aqueous synthetic-resin dispersions are present as binder and ammonium salts of alkyl phosphates are present as substance which is carbonized under the effect of heat and/or as expansion agent, and as acid donor, in a quantity of from 1 to 50% by weight.

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