Claims
- 1. A method of recovering zinc from a gas containing zinc vapor comprising the steps of introducing said vapor into the lower portion of a first chamber having upper and lower portions, passing said vapor upwardly through the chamber, spraying atomized lead in liquid form into the chamber by nozzle means arranged such that the lead and vapor contact each other in counter current flow thereby condensing said vapor on droplets of the lead and thereby forming a liquid lead-zinc mixture, collecting the lead-zinc mixture at the bottom of the chamber and withdrawing said mixture from the chamber; thereafter passing said mixture to a separator and cooling said mixture in said separator such that the zinc forms a layer on the top of the lead, removing the zinc layer from the top of the lead by means of a first separator outlet, and removing the lead from a second separator outlet and recycling the lead from which the zinc has been removed back into the chamber.
- 2. A method according to claim 1 wherein the mixture is cooled in the separator by means of cooling water loops.
- 3. A method according to claim 1 including the step of precooling the gas to a temperature of about 500.degree.-550.degree. C. prior to introducing the gas into said first chamber.
- 4. A method according to claim 1 wherein the mixture is cooled in the separator to a temperature of about 450.degree. C.
- 5. A method according to claim 1 including the step of cooling the lead to about 350.degree. C. prior to recycling.
- 6. A method according to claim 5 including the step of reheating the lead cooled to about 350.degree. C. by means of said gas prior to introducing the gas into the chamber.
- 7. A method according to claim 6 in which the lead is reheated to about 360.degree. C.
- 8. A method of recovering zinc from a gas containing zinc vapor comprising the steps of introducing said vapor into the upper portion of a first chamber having upper and lower portions, passing said vapor downwardly through the chamber, spraying atomized lead in liquid form into the chamber by nozzle means arranged such that the lead and vapor contact each other in co-current flow thereby condensing said vapor on droplets of the lead and thereby forming a liquid lead-zinc mixture, collecting the lead-zinc mixture at the bottom of the chamber and withdrawing said mixture from the chamber; thereafter passing said mixture into a separator and cooling said mixture in said separator such that the zinc forms a layer on the top of the lead, removing the zinc layer from the top of the lead by means of a first separator outlet, and removing the lead from a second separator outlet and recycling the lead from which the zinc has been removed back into the chamber.
- 9. A method according to claim 8 including the steps of removing uncondensed vapor from the lower portion of the first chamber and passing said vapor into the lower portion of a second chamber having upper and lower portions, said second chamber separated at least partially from said first chamber, passing said vapor upwardly through the second chamber, spraying atomized lead in liquid form into the second chamber by nozzle means arranged such that the lead and vapor contact each other in counter current flow thereby condensing the vapor on droplets of the lead and thereby forming a liquid lead-zinc mixture, collecting the lead-zinc mixture at the bottom of the second chamber and withdrawing said mixture from the second chamber; and thereafter passing said mixture to a separator and cooling said mixture in said separator such that the zinc forms a layer on the top of the lead, removing the zinc layer from the top of the lead by means of a first separator outlet, and removing the lead from a second separator outlet and recycling the lead from which the zinc has been removed back into the chamber.
- 10. A method according to claim 9 wherein the lead is collected at the bottom of the first chamber and the second chamber in a single reservoir.
- 11. A method according to claim 9 including the step of precooling the gas to a temperature of about 500.degree.-550.degree. C. prior to including the gas into said first chamber.
- 12. A method according to claim 9 wherein the mixture is cooled in the separator to a temperature of about 450.degree. C.
- 13. A method according to claim 9 wherein the mixture is cooled in the separator by means of cooling water loops.
- 14. A method according to claim 9 including the step of cooling the lead to about 350.degree. C. prior to recycling.
- 15. A method according to claim 14 including the step of reheating the lead cooled to about 350.degree. C. by means of said gas prior to introducing the gas into the chamber.
- 16. A method according to claim 15 in which the lead is reheated to about 360.degree. C.
Priority Claims (1)
Number |
Date |
Country |
Kind |
8203830 |
Jun 1982 |
SEX |
|
Parent Case Info
This application is a continuation of application Ser. No. 460,351, filed on Jan. 24, 1983, now abandoned.
US Referenced Citations (6)
Foreign Referenced Citations (5)
Number |
Date |
Country |
905320 |
Mar 1943 |
DEX |
47491 |
Nov 1972 |
JPX |
572961 |
Oct 1945 |
GBX |
572960 |
Oct 1945 |
GBX |
138753 |
Feb 1960 |
SUX |
Continuations (1)
|
Number |
Date |
Country |
Parent |
460351 |
Jan 1983 |
|