Sugar – starch – and carbohydrates – Processes – Carbohydrate manufacture and refining
Patent
1986-08-18
1988-08-02
Sneed, H. M. S.
Sugar, starch, and carbohydrates
Processes
Carbohydrate manufacture and refining
127 65, 127 33, 127 70, 210651, 210805, 426661, C08B 3000
Patent
active
047611863
ABSTRACT:
Aqueous slurries of physically and/or chemically modified starch solids, having high starch solids levels, are purified by means of ultrafiltration. An ultrafiltration system is started by circulating water and then the modified starch slurry is added to raise the starch solids level of the stream fed to the ultrafiltration unit to between 20 and 32% by weight. Water is added to the ultrafiltration system, preferably at the same rate at which water is removed from the system in the permeate. After the desired level of purification is achieved the slurry is concentrated to above 35% and then dried.
REFERENCES:
patent: 3342729 (1967-09-01), Strand
patent: 4069103 (1978-01-01), Muller
patent: 4228199 (1980-10-01), Chiu et al.
patent: 4280815 (1981-07-01), Oberhardt et al.
patent: 4477480 (1984-10-01), Seidel et al.
patent: 4562086 (1985-12-01), Smolka et al.
Dorr-Oliver Ultrafiltration Systems, Bulletin No. 10-9, (Dorr-Oliver Inc. 1984).
Katcher Jay H.
Schara Robert E.
Donovan Daniel J.
General Foods Corporation
Pak Chung K.
Savoie Thomas R.
Sneed H. M. S.
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