Dissolving and deaerating method

Details Dissolving and deaerating method Dissolving and deaerating method

1990-06-18

1991-09-03

Nozick, Bernard

Agitating

In vacuum chamber

55 38, 55 43, 55 52, 55 55, 55190, 55195, B01D 1900

Patent

active

050447610

ABSTRACT:
A method of dissolving a powder material is disclosed in which the material is wholly dissolved and the existence of bubbles in the resultant solution is greatly minimized. An agitating blade stirs a liquid in an air-tight tank while the powder material is inserted into the liquid. The pressure is then reduced in the tank causing large bubbles to swell. The bubbles are destroyed by the agitating blade. The pressure reducing operation is then turned off so that the bubbles do not leave the tank through a pressure reduction port. The pressure reducing operation is then repeated a number of times to dissolve the powder material and to destroy bubbles.

REFERENCES:
patent: 2355057 (1944-08-01), Copeland
patent: 4444508 (1984-04-01), Kreuer
patent: 4696684 (1987-09-01), Shen

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