Chemistry: physical processes – Physical processes – Agglomerating
Patent
1993-10-12
1994-11-15
Straub, Gary P.
Chemistry: physical processes
Physical processes
Agglomerating
23305A, 423395, C01G 500, C05B 1900
Patent
active
053644182
ABSTRACT:
A process is disclosed for forming compacted silver nitrate bodies. A feed silver nitrate solution is introduced into an evaporative crystallizer (10). Steam is provided to a steam jacket (30) to heat the solution in the crystallizer (10) and form a slurry comprising silver nitrate crystals. The crystallizer (10) has an agitator (20) to mix the slurry and promote crystal growth. Slurry density is maintained within a desired range by controlling the rate of steam flow to the steam jacket (30) via a control valve (34). Slurry containing silver nitrate crystals is withdrawn from the crystallizer (10) and introduced to a centrifuge separator (78), for separating and drying the crystals. The separated, dried crystals are further dried by contact with an airstream and fall into a hopper (88). The crystals flow from the hopper into a translucent feed tube (96) and then into a roll compactor (100) that compacts the crystals to form the compacted silver nitrate bodies.
REFERENCES:
patent: 2414680 (1947-01-01), West
patent: 2614035 (1952-10-01), Robinson
patent: 2671716 (1954-03-01), Ayres
patent: 2801907 (1957-08-01), Scott
patent: 3306710 (1967-02-01), Messing
patent: 3383180 (1968-05-01), Kralik et al.
patent: 3530924 (1970-09-01), Pomning
patent: 3556733 (1971-01-01), Hedrick
patent: 3599701 (1971-08-01), Mollerstedt et al.
patent: 3900292 (1975-08-01), Fairchild
patent: 3970431 (1976-07-01), Wise
patent: 4056364 (1977-11-01), Dmitrovsky et al.
patent: 5000928 (1991-03-01), White
Browning, Agglomeration Growing Larger in Application and Technology, Chemical Engineering 4 Dec. 1967, pp. 147-169.
W. Pietsch "Roll Pressing", 2nd Edition 1987 Powder Advisory Centre pp. 1-19 pp. 98-101.
Bennett "Matching Crystallizer to Material" Chemical Engineering May 88 pp. 119-127.
Guccione, Silver Nitrate from New Plant, 99.9999% Pure Chemical Engineering Aug. 5, 1963 pp. 86-88.
McCabe, W. L. "Crystallization" Chemical Engineers Handbook 4th Edition Section 17 pp. 17-7-17-23.
Show et al Size Reduction and Size Enlargement Perry's Chemical Engineers Handbook 6th ed pp. 8-64.
Crevelling John W.
Drake Paul C.
Hennenkamp Jeffrey R.
Logsdon Kevin M.
Pelto Ralph H.
Eastman Kodak Company
Ruoff Carl F.
Straub Gary P.
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