발간논문

Home > KJMM 논문 > 발간논문

Vol.33, No.9, 1191 ~ 1197, 1995
Title
A Study on the Recycling of the Waste Pickling Sludge of Stainless Steel
박현호 , 강신우 , 김영삼 H . H . Park , S . W . Kang , Y . S . Kim
Abstract
The results obtained from the reduction-experiment study on the recycling of the waste pickling sludge of stainless steel are follows. 1) From the reduction sintering experiment carried out in an N₂-atmosphere by adding the active carbon to the waste pickling sludge of stainless steel, it was found that the suitable condition for extracting the Fe-Ni-Cr crude alloy from the waste pickling sludge is ; the weight ratio of carbon/sludge should be above 0.32 and the reduction temperature should be above 1200℃. It is necessary that the waste pickling sludge is sintered above 1200℃ to decrease the loss-and-pollution of dust by fine particle powders. 2) The products obtained from the melting process under the conditions of the temperature 1600℃, N₂-atmosphere and the carbon/sludge ratio 0.32 should the recovery fraction of Fe above 96%, Ni above 97% and Cr above 90%. The excessive carbon included in the crude alloy produced in this experiment is necessary to pass by the decarburization progress during the oxidizing period in the steel making process.
Key Words
| PDF
대한금속∙재료학회 │ (06633) 서울시 서초구 서초대로 56길 38 대한금속∙재료학회 회관 (서초1동 1666-12번지)
Tel : 070-4266-1646 │ FAX : 02-557-1080 │ E-mail : metal@kim.or.kr
Copyright ⓒ 2013 사단법인 대한금속∙재료학회 All rights reserved.