【発明の名称】鉄鋼ダストからΖnおよびPbを回収する方法

Title:

【発明の名称】鉄鋼ダストからΖnおよびPbを回収する方法

Document Type and Number:

Japanese Patent JPS6053090

Kind Code:

B2

Abstract:

A method of recovering Zn and Pb from iron and steel dust wherein the interior of a rotary smelting furnace connected to the discharge side of a rotary kiln is heated by a burner disposed on the outlet side of the rotary smelting furnace; a heating gas is introduced into the rotary kiln to subject the iron and steel dust containing Zn and Pb which was fed in the rotary kiln to a preliminary reduction with the aid of a reducing agent and, if required, a flux so as to volatilize Zn and Pb; and the product of the rotary kiln is fed into the rotary smelting furnace with addition of a flux to melt the resultant mixture and further volatilize Zn and Pb entrained in the product.

More Like This:

WO/2000/065106	METHOD OF PRODUCING SLURRY-COATED FEED STOCK TO BE USED FOR A DIRECT REDUCTION PROCESS
JP7441237	Methods and systems for ash treatment
JP3709043	METHOD FOR REDUCING POWDERY OXIDE AND REDUCING DEVICE

Inventors:

YASUKAWA MOTOHIRO
ISHIKAWA YUKIO
OSHIMA YASUO
HARADA KOZO
MORI YOSHIAKI

Application Number:

JP13719183A

Publication Date:

November 22, 1985

Filing Date:

July 26, 1983

Export Citation:

Click for automatic bibliography generation Help

Assignee:

SUMITOMO METAL MINING CO

International Classes:

C22B7/02; C22B13/02; C22B19/04; C22B19/30; (IPC1-7): C22B19/30; C22B7/02; C22B13/02; C22B19/04

Attorney, Agent or Firm:

Nakamura Katsunari

Previous Patent: A receiving container of wet tissue

Next Patent: CURRENT INJECTION TYPE JOSEPHSON SWITCH CIRCUIT