Evaporator for concentrating mineral acid, particularly sulphuri

Details Evaporator for concentrating mineral acid, particularly sulphuri Evaporator for concentrating mineral acid, particularly sulphuri

1980-06-11

1981-06-23

Yudkoff, Norman

Concentrating evaporators

Miscellaneous

159 2R, 159DIG15, 159DIG19, 203 86, B01D 102

Patent

active

042749107

ABSTRACT:
The invention procides a circulation evaporator for concentrating mineral acid, particularly sulphuric acid, comprising parts of, or at least coated with, enamel, characterized by a heat exchanger for heating the acid comprising at least one acid feed pipe provided with an enamel layer, means being provided to maintain the compressive stress in the enamel layer under all working conditions, said acid feed pipe being connected at its inlet end to a circulation pump and at its outlet end to a flash evaporator for concentrating the heated acid, this evaporator being connected by a circulation pipe to the pump inlet and to means for introducing the crude acid, for discharging the concentrate and for carrying away the vapors.

REFERENCES:
patent: 1854327 (1932-04-01), Baum
patent: 3294650 (1966-12-01), Manteufel
patent: 4014735 (1977-03-01), Guth et al.

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