Stainless Steel Pickling by fixed concentration HF/HNO3 mixtures through diffusion dialysis acid reclamation

$15.00

An innovative technology of stainless steel pickling by fixed concentration HF/HNO mixtures through diffusion dialysis acid reclamation has been developed and put into practical operation by Daido Steel collaboration with Uniyika.The system is composed of 3 main parts.1. Automated analyzing controllers of HFm HNO and dissolved metal.2. Diffusion dialysis cells utilizing ion-selective membranes.3. Acid replenishment apparatuses.The system was installed in July, 1989 in 12,000-T/month capacity pickling line at Hoshizaki Works.

Description

An innovative technology of stainless steel pickling by fixed concentration HF/HNO mixtures through diffusion dialysis acid reclamation has been developed and put into practical operation by Daido Steel collaboration with Uniyika.The system is composed of 3 main parts.1. Automated analyzing controllers of HFm HNO and dissolved metal.2. Diffusion dialysis cells utilizing ion-selective membranes.3. Acid replenishment apparatuses.The system was installed in July, 1989 in 12,000-T/month capacity pickling line at Hoshizaki Works.

Additional information

Author(s)

Masayuki Ono and Mitsuaki Uchida, Daido Steel Co., Ltd., and Tadaya Ishibashi, Unitika, Ltd. Japan.

Publication/Event/Pages

Paper presented at WAI 61st Annual Convention, Atlanta, GA USA. Paper published in Wire Journal International, March 1992, pg. 43.

Year

1991