Method of pulverizing aromatic phosphates

Details Method of pulverizing aromatic phosphates Method of pulverizing aromatic phosphates

1996-07-24

1997-10-21

Richter, Johann

Organic compounds -- part of the class 532-570 series

Organic compounds

Phosphorus esters

558162, C07F 909

Patent

active

056798245

ABSTRACT:
A method of pulverizing aromatic phosphates which comprises stressing an oily product of an aromatic phosphate having a purity of 90% or more at a temperature lower by 5.degree. to 100.degree. C. than a melting point of the aromatic phosphate in a temperature-controllable kneader to solidify and pulverize the aromatic phosphate.
According to the present invention, aromatic phosphates industrially obtained are able to be solidified and pulverized in a short time in a simple way without being subjected to specific purification. Further, the invention is industrially advantageous in that the solidification and pulverization can be performed successively after production of the aromatic phosphate.

REFERENCES:
patent: 3254973 (1966-06-01), Giammaria
patent: 4134876 (1979-01-01), Horner et al.
patent: 5122556 (1992-06-01), Kambour
patent: 5420327 (1995-05-01), Bright et al.
Kosolapoff et al., "Structural Effects in Reactions of Organophosphorous Compounds. I Reactions of Phosphorous Oxychloride with Hindered Phenols", J. Chem. Soc., pp. 815-818 (1968).
Kambour et al., Journal of Polymer Science: Part B: Polymer Physics, vol. 27, No. 10, pp. 1979-1992 and 2721 (1989).
Chemical Abstract, vol. 116, No. 12, Mar. 23, 1992, Columbus, Ohio, US, Abstract No. 107929, p. 79.

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