公开(公告)号：US3779871A

公开(公告)日：1973-12-18

申请号：US3779871D

申请日：1971-02-16

Applicant: ALUMINUM CO OF AMERICA

Inventor： BROWN M

IPC: B01D3/06 ,  B01D3/00 ,  B01D1/22 ,  B01D1/26 ,  B01D3/02 ,  B01D3/08 ,  B01D3/10 ,  B01D3/28

CPC classification number: B01D3/065

Abstract: A portion of an impure liquid is evaporated and the vapor condensed to provide a purified liquid product such as purified water. Evaporation is effected by a process employing a plurality of evaporative zones. According to the new arrangements, evaporation is effected in a plurality of zones and the vapor removed downwardly through elongate chambers. A downwardly decreasing thermal gradient is established in the unevaporated liquid by properly controlling the pressures in the evaporative zones. Heat is removed from the vapor as it is moved downwardly through this temperature gradient. The concentrated unevaporated liquid can also be recovered.

Abstract translation: 一部分不纯的液体被蒸发并且蒸气冷凝以提供纯化的液体产物，例如净化水。 通过采用多个蒸发区的方法实现蒸发。 根据新的布置，在多个区域中进行蒸发，并且蒸汽通过细长室向下移除。 通过适当地控制蒸发区中的压力，在未蒸发的液体中建立向下降低的热梯度。 当蒸汽向下移动通过该温度梯度时，热量从蒸汽中除去。 浓缩的未蒸发的液体也可以回收。

公开(公告)号：US3843463A

公开(公告)日：1974-10-22

申请号：US30189172

申请日：1972-10-30

Applicant: ALUMINUM CO OF AMERICA

Inventor： BROWN M

IPC: B01D1/22 ,  B01D3/06 ,  B01D3/34 ,  C02F1/10

CPC classification number: B01D3/346 ,  B01D1/22 ,  B01D3/065 ,  C02F1/10 ,  Y02A20/128

Abstract: 1. IN THE METHOD OF TREATING A LIQUID FEED COMPRISING A MORE VOLATILE AND A LESS VOLATILE FRACTION TO SEPARATE SAID FRACTIONS THE STEPS COMPRISING (1) MOVING SAID LIQUID FEED VERTICALLY THROUGH A SUBSTANTIALLY VERTICAL EVAPORATION CHAMBER HAVING THEREWITHIN A CONDITION OF SUBSTANTIALLY PROGRESSIVELY INCREASING TEMPERATURE IN THE DIRECTION OF SAID LIQUID FEED MOVEMENT AND MOVING CONCURRENTLY THEREWITH AND IN CONTACT THEREWITH A CARRIER GAS THEREBY TO PROGRESSIVELY HEAT SAID LIQUID AND SAID GAS MEDIA TO CAUSE EVAPORATION OF THE MORE VOLATILE FRACTION FROM SAID LIQUID AND ENRICHMENT OF SAID CARRIER GAS IN VAPOR OF SAID MORE VOLATILE FRACTION; (2) HEATING THE MOST ADVANCED PORTIONS OF SAID EVAPORATION CHAMBER AND THE FLUID MEDIA THEREWITHIN TO THE HIGHEST TEMPERATURE WITHIN SAID INCREASING TEMPERATURE CONDITION EXCLUSIVELY WITH EXTERNALLY DERIVED HEAT ENERGY; (3) MOVING THE VAPOR ENRICHED GAS FROM THE EXIT OF SAID EVAPORATION CHAMBER THROUGH A CONDENNSATION CHAMBER COUNTERCURRENTLY WITH RESPECT TO THE FLOW IN THE EVAPORATION CHAMBER AND IN HEAT TRANSFER RELATIONSHIP WITH PORTIONS OF SAID EVAPORATION CHAMBER PRECEDING SAID MOST ADVANCED PORTIONS TO PROGRESSIVELY COOL SAID VAPOR ENRICHED CARRIER GAS AND CONDENSED VAPOR THEREFROM AND TO PROGRESSIVELY HEAT THE FLUID MEDIA MOVING WITHIN SAID PRECEDING PORTIONS OF SAID EVAPORATION CHAMBER; (4) SAID EXTERNALLY DERIVED HEAT ENERGGY IN SAID STEP (2) BEING PROVIDED ADDITIONALLY TO AND AT A TEM HIGHER THAN THE HEAT CONTAINED IN SAID VAPOR ENRICHED CARRIER GAS MOVED THROIUGH SAID CONDENSATION CHAMBER IN SAID STEP (3); (5) SAID HEATING OF SAID MOST ADVANCED PORTIONS OF SAID EVAPORATION CHAMBER IN SAID STEP 2 AND SAID HEATING OF PRECEDING PORTIONS THEREOF IN SAID STEP 3 PROVIDING AMD MAINTAINING SAID SUBSTANTIALLY PROGRESSIVELY INCREASING TEMPERATURE CONDITION WITHIN SAID EVAPORATION CHAMBER; (6) REMOVING SAID CARRIER GAS FROM SAID CONDENSATION CHAMBER.
D R A W I N G

公开(公告)号：US3822192A

公开(公告)日：1974-07-02

申请号：US20608671

申请日：1971-12-08

Applicant: ALUMINUM CO OF AMERICA

Inventor： BROWN M

IPC: B01D1/22 ,  B01D3/06 ,  B01D3/34 ,  C02F1/04 ,  C02F1/10 ,  B01D1/06 ,  B01D1/10 ,  B01D1/14

CPC classification number: B01D3/065 ,  B01D1/22 ,  B01D3/346 ,  C02F1/10 ,  Y10S159/29

Abstract: THE METHOD OF VAPORATION FEATURING HUMIDIFICATION IS EFFECTED IN A CHAMBER MAINTAINED AT A DOWNWARDLY INCRESING TEMPERATURE GRADIENT. THE LIQUID BEING TREATED AND A VAPOR CARRIER GAS ARE PASSED DOWNWARDLY THROUGH THE CHAMBER WHERE THE CARRIER GAS IS ENRICHED IN VAPOR FROM THE LIQUID. THE ENRICHED CARRIER GAS EXITING FROM THE BOTTOM OF THE CHAMBER IS MOVED UPWARDLY ALONGSIDE THE CHAMBER AND IN HEAT TRANSFER RELATION WITH THE FLUIDS WITHIN THE CHAMBER. HEAT IS APPLIED TO THE BOTTOM PORTIONS OF THE CHAMBER TO ASSURE THE DESIRED TEMPERATURE GRADIENT. CONDENSATION OCCURS ON THE OUTSIDE OF THE CHAMBER. THIS CONDENSATE AND THE CONCENTRATED LIQUID CAN BE RECOVERED. THE HEATED LIQUID CONCENTRATE EXITING THE BOTTOM OF THE CHAMBER MAY BE FURTHER TREATED.

公开(公告)号：US3708352A

公开(公告)日：1973-01-02

申请号：US3708352D

申请日：1971-06-14

Applicant: ALUMINUM CO OF AMERICA

Inventor： SHUMAKER M ,  BROWN R ,  BROWN M

IPC: C22C21/06 ,  C22F1/047 ,  C22F1/04

CPC classification number: C22C21/06 ,  C22F1/047

Abstract: ALUMINUM ALLOY PLATE CONTAINING 4.4 TO 10% MAGNESIUM AND STRAIN HARDENED TO IMPROVE ITS STRENGTH TO A LEVEL OF AT LEAST 40% GREATER THAN THE STRENGTH IN THE ANNEALED STATE IS IMPARTED WITH SUBSTANTIALLY FREEDOM FROM SUSCEPTIBILITY OF EXFOLIATION CORROSION. THE PROCESS INCLUDES ROLLING AT MINIMUM TEMPERATURES OF ABOUT 420* TO 650*F. DEPENDING ON THE AMOUNT OF MAGNESIUM PRESENT, TO PRODUCE THE STRAIN HARDENED PRODUCT AND COOLING AT SPECIALLY CONTROLLED RATES.