Method for producing a fibrous fire protection agent

Details Method for producing a fibrous fire protection agent Method for producing a fibrous fire protection agent

1979-07-17

1981-08-25

Lovering, Richard D.

Compositions

Fire retarding

For wood or cellulosic material other than textile

106 1813, 252604, 427201, 427425, 428921, C09D 518, C09K 328

Patent

active

042858429

ABSTRACT:
A method for producing a fibrous fire protection agent composed of a fibrous material with boric acid particles adhering to its surface, by providing a mass of such fibrous material having a moisture content of up to 80 percent by weight, intimately mixing in a mixer that mass of material with a quantity of powdered boron mineral material, spraying a quantity of concentrated sulfuric acid into the mixer during the mixing step to form a granulate, feeding the resulting granulate onto an evaporation line, and withdrawing the granulate from the evaporation line and comminuting the granulate in an impact pulverizer to form it into the fibrous fire protection agent.

REFERENCES:
patent: 2935471 (1960-05-01), Aarons et al.
patent: 3380842 (1968-04-01), Watson
patent: 3983040 (1976-09-01), Draganov
patent: 4168175 (1979-09-01), Shutt

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