583155 五、發明說明（1) "—-— 【發明所屬之技術領域】 本發明係一種將鋁渣灰資源化利用之方法，主要η 煉鋁爐渣分選回收金屬鋁後剩餘之鋁渣灰廢棄物進行=乐 燒，製成耐火材料之原料，以達成鋁渣灰資源化之目=， 並創造更南的經濟價值。 、 【先前技術】 鋁為咼活性之金屬，因此再生鋁廠煉鋁過程中，易有 氧化汗渣之產生；此種浮渣移除冷卻後稱為煉鋁爐渣，簡 稱鋁渣。煉鋁除去鋁渣的過程中，部分之金屬鋁會夾雜其 中；故一般處理鋁渣之方式乃是將其中之殘留金屬鋁予^ 分選回收，分選剩餘之物便將之拋棄。此被拋棄之物，稱 之為鋁渣灰。鋁渣灰的化學成分主要以氧化鋁、氧化矽、 氧=鈉、氧化鐵、氧化鎂及氧化鈣為主，其各成分的比例 隨著各廠家的原料及操作條件不同而略有變化，典型鋁渣 灰之化學成分如第四圖所示。而鋁渣灰顆粒大小隨著 廠家篩選作業條件不同而異，通常在20篩目以下。 發明人在鋁渣灰資源化利用之領域從事研究及實作多 年，累積有豐富之實務經驗，民國89年間，發明人利用磷 酸或硫酸對銘渣灰施以安定化之處理，復添加砂及水泥再 施已壓力製成水泥體之方法，提供了鋁渣灰資源化利用的 有效解決方案，該方法並取得中華民國發明 3711號專 利，發明人經多年之再研究，又有本發明之產生。583155 V. Description of the invention (1) " —- [Technical field to which the invention belongs] The present invention is a method for recycling aluminum slag ash, mainly η aluminum slag ash remaining after aluminum smelting sorting and recovery of aluminum metal The waste will be = burned and made into the raw materials of refractory materials to achieve the goal of recycling aluminum slag ash = and create more economic value in the south. [Previous technology] Aluminum is a rhenium-active metal. Therefore, during the aluminum smelting process of the recycled aluminum plant, oxidized sweat slag is easily generated; such slag is called aluminum slag after being removed and cooled, and is simply called aluminum slag. During the process of smelting aluminum to remove aluminum slag, part of the metal aluminum will be mixed; therefore, the general way to treat aluminum slag is to sort and recover the residual metal aluminum, and then discard the remaining material. This abandoned thing is called aluminum slag ash. The chemical composition of aluminum slag ash is mainly alumina, silica, oxygen = sodium, iron oxide, magnesium oxide, and calcium oxide. The proportion of each component varies slightly with the raw materials and operating conditions of various manufacturers. Typical The chemical composition of aluminum slag ash is shown in Figure 4. The size of aluminum slag ash varies with manufacturers' screening conditions, and is usually below 20 mesh. The inventor has been engaged in research and implementation in the field of aluminum slag ash resource utilization for many years, and has accumulated rich practical experience. During the Republic of China in 1989, the inventor applied phosphoric acid or sulfuric acid to stabilize the slag ash, added sand and The method of re-pressing the cement into a cement body provides an effective solution for the utilization of aluminum slag ash resources. This method has also obtained the Republic of China Patent No. 3711. After years of re-examination by the inventor, the invention came into being. .
第5頁 urn 583155 五、發明說明（2) 【發明内容】 本發明乃根據鋁渣灰鋁含量高的特點，與耐火材料之 原料化學成分接近，故利用此一特性將其製成耐火材料之 原料。本方法不僅可以將鋁渣灰充分資源化再利用，解決 紹渣灰處理之問題；而且可以提高鋁渣灰之附加價值及有 效減少製造耐火材料原料之資源及能源之浪費。 在呂是地殼中存量最豐富的金屬元素，性極活潑，在自 然界中並不以金屬的狀態存在，直到十九世紀鋁金屬提煉 技術的出現，鋁金屬的應用才逐漸開始，而到目前為止已 成為用量僅次於鐵的金屬，且持續增加當中。 因為鋁的化性活潑，故其高溫冶鍊時氧化情形無法避 免；除此之外，原料中含有水分及有機物，亦是亦是造成 金屬鋁氧化的原因之一。此氧化物比重小，遂浮於鋁液表 面’形成浮渣，將浮渣移除冷卻後即為鋁渣。因此，銘^ 除了夾雜部分之金屬鋁外，其絕大多數的氧化物皆為氧^ 銘。:紹渣分選回收金屬鋁後剩下之鋁渣灰，其主要八 亦^ Ϊ以氧化鋁為最主要的組成。本發明即針對鋁渣灰二 鋁量高的特性，加以資源化利用，提出既經濟又有&的二 法將原本需視為廢棄物處理之鋁渣灰，製成高單僧^ 火材料之原料。 干#的耐 5月參閱第一圖，本發明之主要步驟係： 1 ·以鋁渣灰為原料； 2 ·進行而溫假燒、安定化； 3 ·製成耐火材料之原料。Page 5 urn 583155 V. Description of the invention (2) [Abstract] The present invention is based on the characteristics of high aluminum content of aluminum slag and aluminum, which is close to the chemical composition of the raw material of the refractory material, so it is used to make it into a refractory material. raw material. This method can not only fully recycle aluminum slag ash and solve the problem of slag ash treatment, but also can increase the added value of aluminum slag ash and effectively reduce the waste of resources and energy for manufacturing refractory raw materials. Lu is the most abundant metal element in the earth's crust. It is extremely lively and does not exist as a metal in nature. Until the advent of aluminum metal refining technology in the 19th century, the application of aluminum metal began gradually. So far It has become the second most used metal after iron, and it continues to increase. Because aluminum is chemically active, it cannot be oxidized during high temperature smelting. In addition, the raw materials contain moisture and organic matter, which is also one of the reasons for aluminum oxidation. This oxide has a small specific gravity, and then floats on the surface of the molten aluminum to form scum. The scum is removed and cooled to become an aluminum slag. Therefore, with the exception of metallic aluminum, most of its oxides are oxygen. : The aluminum slag ash remaining after the metal slag is sorted and recovered, its main components are also alumina. The present invention aims at the characteristics of high aluminum content of aluminum slag ash and uses it as a resource. It proposes two methods that are economical and have an aluminum slag ash that originally needs to be treated as waste to make a high-grade monk. . The resistance of dry # Refer to the first figure in May. The main steps of the present invention are: 1 · Aluminum slag ash is used as raw material; 2 · Temperature firing and stabilization are carried out; 3 · Raw material for making refractory material.
第6頁 583155 五、發明說明（3) 【實施方式】 亦即，本發明主要的方法是利用高溫窯爐將鋁渣灰高 溫瑕燒，使其轉變成為主要成分為氧化鋁（礦物結晶相為 剛玉）之材料，以做為耐火材料之原料使用，煆燒中，影 響資源化再利用之A 1 N (氮化鋁）及A丨4 q (碳化鋁）將趨 於安定。 前述之高溫煆燒，其溫度範圍係自8 〇 〇。〇至丨8 〇 〇它。 又上述之紹渣灰係指煉紹爐渣分選回收金屬铭後之剩 餘物或是煉鋁爐渣經粉碎研磨過程而使顆粒變細者。 根據上述方法假燒至8 〇 〇 後之銘渣灰材料，從其X光 繞射分析（XRD )的結果便可看出有明顯之剛玉結晶相產 生（第二圖所示即為鋁渣灰130(rc煆燒XRD結果，圖中 及Y軸是表示X光照射角度及強度），上述剛玉結晶相隨著 假燒的溫度越高而越明顯（第三圖為鋁渣灰8 〇 至 1 50 0 °C煆燒XRD結果之堆疊圖），因此控制鋁洁灰煆ά μ 度，所製得之原料係可配合不同等級耐火材料 要’此所稱之耐火材料包括耐火碑、耐火泥、洗注料等定 型及不定型耐火材料；又所稱耐火材料之原料$指耐火材 料製造過程中之添加物者。 煆燒過程中，影響其資源化再利用之A1N (氮化銘） 及AI4 C3 (碳化鋁）將趨於安定，其反應式如下： 4A1N + 702 ->2Α12〇3 +4N02 A14C3 + 602 —2Al2〇3 +3C02Page 583155 5. Explanation of the invention (3) [Embodiment] That is, the main method of the present invention is to use a high temperature kiln to burn the aluminum slag ash at a high temperature to transform it into alumina, which is the main component (the mineral crystal phase is Corundum) is used as a raw material for refractory materials. During sintering, A 1 N (aluminum nitride) and A 丨 4 q (aluminum carbide), which affect the reuse of resources, will tend to be stable. The aforementioned high temperature sintering has a temperature range from 800. 〇 to 丨 8 〇 〇 It. The above-mentioned slag ash refers to the residue after the slag sorting and recycling of metal slag is sorted or the slag of aluminum smelting is made into particles by pulverization and grinding. According to the above method, the slag ash material that has been sintered to 8000 is found from the results of X-ray diffraction analysis (XRD). There is obvious generation of corundum crystal phase (the second figure is aluminum slag ash 130 (rc sintering XRD results, the X-ray irradiation angle and intensity are shown in the figure and the Y-axis), the above-mentioned corundum crystal phase becomes more obvious as the temperature of false firing is higher (the third figure is aluminum slag ash 8 0 to 1 50 0 ° C stacking chart of XRD results), so the aluminum ash is controlled. The raw materials produced can be used with different grades of refractory materials. The so-called refractory materials include refractory monuments, refractory mud, Shaped and unshaped refractories such as castables; also known as the raw materials of refractories $ refers to the additives in the manufacturing process of refractory materials. A1N (nitriding inscription) and AI4 that affect its resource reuse during the calcination process C3 (aluminum carbide) will tend to be stable, and its reaction formula is as follows: 4A1N + 702-> 2A12〇3 + 4N02 A14C3 + 602 —2Al2〇3 + 3C02
583155583155
583155 圖式簡單說明 第一圖係本發明之流程圖。 第二圖係鋁渣灰1 300 °C煆燒XRD結果。 第三圖係為鋁渣灰8 0 0 °C至1 5 0 0 °C煆燒經X光繞射分析結果 之堆疊圖。 第四圖係紹潰灰之化學成分表。583155 Brief description of drawings The first drawing is a flowchart of the present invention. The second picture is the XRD results of aluminum slag ash 1 300 ° C. The third picture is a stacking diagram of the results of X-ray diffraction analysis of aluminum slag ash at 800 ° C to 15 0 ° C. The fourth picture is the chemical composition table of the ash.
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