Title: Production of low bulk density product from sodium bicarbonate

Abstract: Low bulk density products containing at least 10% Wegscheider's Salt (Na.sub.2 CO.sub.3.3NaHCO.sub.3), by weight, in needlelike form are produced from sodium bicarbonate by heating in two distinct steps an aqueous feed mixture comprising by weight at least about 50% sodium bicarbonate and about 3 to 25% Wegscheider's Salt.

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Inventors: Gancy, Alan B. (Syracuse, NY, US)
Poncha, Rustom P. (Syracuse, NY, US)

Application Number: 540615
Filing Date: 1975-01-13
Publication_date: 1976-03-16
Assignee: Allied Chemical Corporation (New York, NY)
Primary Class(es): 252/182.32 252/192, 423/425, 510/509, 510/531
Other Classes:
US Patent Ref:

1473259	Nov, 1923	Sundstrom et al.	423/425.
1583660	May, 1926	Cocksedge	423/425.
1583661	May, 1926	Cocksedge	423/425.
1583662	May, 1926	Sundstrom et al.	423/425.
3701737	Oct, 1972	Goldstein	252/182.

Other Refs:
Primary Examiner: Schulz, William E.
Assistant Examiner:
Attorney: Fuchs; Gerhard H.