KR20010089870A

KR20010089870A - Process for manufacturing mineral to be added in feed for animais from dust in electric furnace

Info

Publication number: KR20010089870A
Application number: KR1020000015343A
Authority: KR
Inventors: 문상우
Original assignee: 문상우
Priority date: 2000-03-25
Filing date: 2000-03-25
Publication date: 2001-10-12

Abstract

PURPOSE: A method for manufacturing complex mineral from electric furnace dust is provided, which enables recycling of waste iron dust as a raw material for assorted feed additive or a mixed fertilizer additive through simple processes. CONSTITUTION: The complex mineral is manufactured by (i) immersing manganese dioxide and iron scrap in a diluted sulfuric acid solution for about 4hrs to dissolve the manganese dioxide; (ii) adding electric furnace dust into above solution for neutralization, and concentrating/drying it to prepare manganese sulfate(MnSO4·H2O) after filtering; (iii) redissolving iron oxide and sludge from the preparation processes of manganese sulfate by sulfuric acid, and immersing iron scrap acting as reductant into the solution; (iv) putting electric furnace dust into the solution to adjust hydrogen-ion concentration of the solution to pH 4, and discarding precipitates; (v) adding zinc powder to the supernatant solution to remove heavy metals; and then (vi) concentrating and drying the resultant solution to prepare target complex mineral.

Description

Process for manufacturing mineral to be added in feed for animais from dust in electric furnace}

본 발명은 전기로더스트를 이용하여 미네랄을 제조하는 방법에 관한 것으로 보다 구체적인 것은 묽은 황산에 금속철과 이산화망간을 넣어 이산화망간을 용해시킨다음 전기로더스트를 넣어 중화시킨 것을 여과하여 황산망간을 제조하고 남은 산화철 슬러지를 황산을 가해 용해시킨다음 철을 넣어 환원시키고 전기로더스트를 넣어 중화시켜서 복합미네랄을 제조하는 것인데 본 발명의 특징은 이산화망간을 녹이기 위해 철을 환원제로 사용하므로서 이산화망간을 완전히 녹여 황산망간을 제조할수 있고 황산망간을 제조한 산화철을 황산으로 용해하고 전기로더스트로 중화시켜 복합미네랄을 생산케하므로서 전기로더스트의 이용가치를 보다 넓혀서 산업에 이바지 할수 있게한 것이다.The present invention relates to a method for producing minerals using an electric furnace, and more specifically, to dissolve manganese dioxide by putting metal iron and manganese dioxide in dilute sulfuric acid, and then neutralizing the electric furnace by adding manganese sulfate to produce manganese sulfate sludge. Is dissolved by adding sulfuric acid, and then iron is reduced and neutralized by addition of an electric furnace. The characteristics of the present invention is that by using iron as a reducing agent to dissolve manganese dioxide, manganese dioxide can be completely dissolved to prepare manganese sulfate. By dissolving the manganese oxide iron oxide with sulfuric acid and neutralizing it with an electric furnace to produce a composite mineral, it is possible to contribute to the industry by expanding the value of use of the electric furnace.

전기로더스트를 산업에 이용하는 방법은 아연 또는 아연화합물을 제조하는 것이 제시되어 있다.The method of using electric furnace for industry is proposed to prepare zinc or zinc compound.

그러나 전기로더스트에서 아연 또는 아연화합물을 제조하는 것은 함유된 철분을 제거하는 방법이 난이하여 완전한 분리가 어렵고 처리약품과 고가의 장비가 설치되어 분리과정을 거쳐야 하기 때문에 실용성면에서 부담이 큰 불편이 있었다.However, manufacturing zinc or zinc compounds from electric furnaces was difficult because of the difficulty in removing the contained iron, so it was difficult to completely separate them and the treatment chemicals and expensive equipment had to be separated. .

본 발명은 상기와 같은 종래의 결점을 해소하기 위하여 개발한 것으로 이를 상세히 설명하면 다음과 같다.The present invention has been developed to solve the above conventional drawbacks as described in detail as follows.

1. 황산망간의 제조1. Manufacturing of Manganese Sulfate

이산화망간(망간함유50%) 45gManganese Dioxide (50% Manganese) 45g

황산 66gSulfuric acid 66g

철 17g17 g of iron

물 200g200 g of water

전기로더스트(중화재)는 성분이Electric Roaster (Neutralization Material)

철 15∼25%15-25% iron

아연15∼30%15-30% zinc

망강 1∼4%1-4% of manganese steel

Si 16∼26%Si 16-26%

Pb 1∼3로 되어 있고 그 전기로더스트 23g을 준비하여It consists of Pb 1-3 and prepares 23g of the electric roasts,

물에 황산을 넣고 액온 80℃로 만들어 이산화망간과 철스크랩을 넣은후 4시간정도 반응시켜 이산화망간이 완전히 용해되면 전기로더스트 23g을 넣고 중화시켜 용액을 여과하여 얻은 여액을 농축 또는 건조시켜 황산망간(MnSo₄,H₂0) 59.58g 을 제조한다.Sulfuric acid was added to water to make a liquid temperature of 80 ℃ After reacting for 4 hours into the manganese dioxide and iron scrap manganese dioxide is completely dissolved to put the electric furnace dust 23g neutralization was filtered and the solution was concentrated or dried and the filtrate obtained manganese sulfate (MnSo ₄ , H ₂ 0) 59.58 g.

2. 미네랄의 제조2. Preparation of Minerals

가. 상기 제조공정에서 황산 망간을 제조하고 남은 산화철과 슬러지를 황산100g 물 200g과 반응시킨후 철스크랩을 환원재로 넣고 환원시키면서 전기로더스트 80g∼150g을 넣어 PH4로 중화시켜 여과한후 슬러지는 세척후 버리고 여액을 얻어 아연말을 가해 중금속을 제거시킨후 남은 여액을 농축 또는 건조시켜 미네랄 185g을 얻는다.end. After manufacturing manganese sulfate in the manufacturing process and reacting the remaining iron oxide and sludge with 200g of sulfuric acid 100g water and put iron scrap as a reducing material while putting 80g ~ 150g of electric roast and neutralized with PH4 filtered and discarded sludge after washing Obtain a filtrate, add zinc powder to remove heavy metals, and concentrate or dry the remaining filtrate to obtain 185 g of mineral.

이와같이된 본 발명은 물에 황산을 넣고 80℃로 가열하여 이산화망간과 철을 넣고 4시간 이상 교반하여 반응시키므로서 철이 이산화망간을 녹이는 환원재로 작용하기 때문에 이산화망간을 완전히 녹일수 있고 이산화망간이 완전히 녹으면 중화재로 중화시켜 철을 산화물로 만든 다음 제거하는 여과를 하고 여액은 증발시켜 농축 하거나 건조시키므로서 황산망간을 제조할수 있으며 황산망간을 제조하고 남은 슬러지와 산화철을 황산을 가해 다시 다시 용해시키고 철을 환원재로 넣어 환원시킨다음 전기로더스트를 넣고 PH를 4로 조정하여 여과시켜 슬러지를 버리고 얻은 여액에 아연말을 넣어 중금속을 분리 제거한후 여액을 농축 하므로서 복합미네랄을 얻는 것이다.The present invention thus added sulfuric acid in water and heated to 80 ℃ manganese dioxide and iron and reacted by stirring for more than 4 hours, so iron acts as a reducing agent to dissolve manganese dioxide can completely dissolve the manganese dioxide and neutralize when the manganese dioxide completely dissolved Manganese sulfate can be prepared by neutralizing with ash to make iron into oxide and then removing and filtrate by evaporating to concentrate or dry.Manganese sulfate can be prepared and the remaining sludge and iron oxide are dissolved again with sulfuric acid to reduce iron Put it into ash and reduce it, add electric furnace, adjust the pH to 4, filter it, discard the sludge, add zinc powder to the obtained filtrate, remove heavy metals, and concentrate the filtrate to obtain a composite mineral.

이렇게 얻어진 복합미네랄은 철 20.80%, 아연10.95%, 망간 1.59%의 비율로혼합된 복합미네랄을 구성하므로 사료에 첨가하거나 복합비료제조에 이용할수 있어서 경제적인 이용가치를 높일수 있다.The composite mineral obtained in this way constitutes a mixed mineral at a ratio of 20.80% iron, 10.95% zinc and 1.59% manganese, so that it can be added to feed or used for manufacturing fertilizer to increase economic value.

나. 한편 상기 공정에서 황산망간을 제조하고 남은 산화철과 슬러지에 물 200g을 보충하고 황산80g을 넣어 반응시킨후 철 20g과 전기로더스트55g을 넣어 PH4로 중화시켜 여과하여 슬러지를 세척하여 버리고 여액을 얻어서 아연말을 넣고 중금속을 분리한후 남은 여액을 건조시키면 미네날 155g을 얻을 수 있다.I. Meanwhile, the manganese sulfate was prepared in the above process, and 200 g of water was added to the remaining iron oxide and sludge, 80 g of sulfuric acid was added and reacted. Then, 20 g of iron and 55 g of iron were neutralized with PH4, filtered, washed with sludge, and the filtrate was obtained. After adding heavy metals and drying the remaining filtrate, you can get 155g of mineral.

이때 얻어진 미네랄은 철 20.70%, 아연20.74%, 망간1.56%의 복합미네랄을 얻는다.The minerals obtained are 20.70% iron, 20.74% zinc, and 1.56% manganese composite minerals.

다. 또한 본 발명은 전기로더스트를 넣어 중화시킨 여액에 페로망간분말, 코발트, 세륨와 같은 특정의 무기물을 일정비율로 추가하여 용출액을 만들어 이를 건조시키므로서 미네랄에 망간, 코발트, 세륨와 같은 무기물의 함량을 일정수준으로 유지하는 복합미네랄의 제조도 가능하다.All. In addition, the present invention by adding a specific ratio of ferro manganese powder, cobalt, cerium to the filtrate neutralized by the addition of the electric furnace in a certain ratio to make the eluate and drying it to a certain level of minerals such as manganese, cobalt, cerium in the mineral It is also possible to produce a composite mineral to be maintained.

이렇게 함으로서 황산액에 금속철과 이산화망간을 녹여서 황산망간을 얻고 난후의 슬러지와 산화철에 황산을 가해 재용해시켜서 철을 가해 환원시킨 다음 전기로 더스트를 중화재로 사용하여 중화시키므로서 복합미네랄을 제조할수 있어서 전기로에서 발생하는 폐기물인 전기로더스트를 동물사료첨가용 미네랄이나 제4종 복합비료제조기에 이용할수 있어서 활용성을 높일수 있는 이점을 얻는 것이다.By dissolving metal iron and manganese dioxide in sulfuric acid solution, manganese sulfate is obtained. After the sulfuric acid is added to the sludge and iron oxide, redissolved, iron is reduced, and then neutralized using electric dust as a neutralizing material. In this case, the electric furnace, which is a waste generated in the electric furnace, can be used for mineral feed for animal feed or the fourth type of compound fertilizer manufacturing company, thereby obtaining an advantage of increasing utility.

Claims

Dissolve manganese dioxide by adding manganese dioxide and iron together in dilute sulfuric acid solution for 4 hours and get manganese sulfate by concentrating the solution obtained by neutralizing electric furnace in neutralized solution After obtaining manganese, sulfuric acid is added to the iron oxide and sludge, redissolved, and iron is reduced. Then, zinc oxide is added to the filtrate neutralized with PH4 and neutralized with PH4, and the heavy metal is removed. Method of manufacturing a composite mineral by using an electric furnace prepared by the process of obtaining a composite mineral