201038746 四、 指定代表圖： (=)本案指定代表圖為：第⑴圖與第⑵圖。 (二)本代表圖之元件符號簡單說明： a :含氤化鋁之鋁渣為原料。 b :反應槽。 c ·加熱安定化铭渣。 d:含氨之水蒸氣導入反應槽。 e :冷凝。 O f:水進行加熱產生蒸氣。 g :安定化之铭渣。 h :氨水。 i : 一設施 五、 本$若有化學式時，請揭示最能顯示發明特徵的化取 έ氮化紹之銘;查與水蒸氣水解安定化反應 AlN(s)+ 2H2〇(gas)-^A100H(S) + NHs (gas) (1) 含鋁氧化金屬之鋁渣與水蒸氣水解反應 M Al〇〇H(S)+H2〇 (gas)~~> A1(0H)3 (2) 含氨氣體與水蒸氣反應 H2〇(gas)+NH3 (gas)->NH4〇H(lia) (3) 含氮化紹之鋁渣與水蒸氣水解安定化總反應.· A1N(S)+ 4H2〇(gas)-Al(OH)3+ NH4〇H(iiq) 一 六、 發明說明： 【發明所屬之技術領域】 本發明係關於一種方法；一種以水蒸氣去除鋁 2 201038746 渣中氮化鋁之方法，特別是關於一種將鋁渣（含集塵灰) 中所含氮化鋁進行水解的方法，該方法係在使鋁渣 (含集塵灰)在非經由加水調製成漿狀條件下，利用水蒸 氣直接與鋁渣（含集塵灰)進行水解反應，將鋁渣中所 含之氮化鋁進行水解生成氧化鋁之方法，鋁渣經由 本發明之程序處理後，可達到安定化及後續再利用 的目的。 【先前技術】 〇 再生煉鋁製程中所產生鋁渣，由於係為經分選 出可回收之金屬鋁後，而殘留下之金屬氧化物，因 煉鋁製程中的氮化作用，致使空氣中的氮成分與鋁 金屬化合為氮化紹，此類銘渣中之氮化銘物質在惰 性的兩溫環境中非常穩定。在空氣中，溫度高於7 〇 〇 它時’物質表面會發生氧化作用。在氫氣及二氧化 石反中直至980°C，氮化鋁仍相當穩定，直至1370¾， ❹ 氧化物薄膜仍可保護物質，但當溫度高於1370 時’便會發生大量氧化作用。在水相中由於水分子 偶極力作用，使氮化鋁在水中水解速度極為緩慢， 礦物酸通過侵襲粒狀物質的界限使它慢慢溶解，而 強鹼則通過侵襲粒狀氮化鋁使它溶解。氮化鋁可以 抵抗大部分融解的鹽的侵襲，包括氣化物及冰晶石。 先前之技術如專利公告第455514號及第 200815609號及第233312號均是將鋁渣經由加水調 3 201038746 聚狀’並加人各式酸驗_或其它程序使其令 :之氮，，經水相水解而去除氮化鋁，雖可將 經化處理’然而因為氮化缺水相的水 ^需藉由酸㈣劑及加溫與時間等條件與氮化銘 、〜過程t驗性藥劑與銘金屬反應後產生氣 增加氣爆火災等危險I安意外發生的機率，於實務 面臨操作成本及效率與安全的問題，無法達到安定 Ο 〇 化及資源化的目的，後續二次鋁渣漿狀物之乾燥能 耗的成本面臨經濟性的考驗。 又如專利公告第1277463號之方法亦是藉由水 相反應將氮化銘進行水解安定化，雖使用高壓基 氣，但其目的在提供水相水解之能量，使水溫升高 進而加速其水解反應速度，仍不脫藉由水相水解的 ，式使紹/查進行安定化處理，後續铭渣漿狀物之乾 燥能耗，面臨操作成本及效率的問題。 故歸納先前技術之問題如下： 1 ·運用液態水進行水解氮化鋁時效率低。 2·使用酸鹼藥劑加速氮化鋁水解時增加成本。 3.水解過程產生氫氣易發生工安意外。 4·運用液態水進行水解時產生大量廢水問題。 【發脫水及乾燥不_作成本大增。 由於已知之紹渣進行安定化之處理及處置方 法’皆利用沒相水解方法將其中的氮化鋁進行水 解，水解過程由於液態水分子偶極力作用，造成液 4 201038746 態水與鋁渣（含集塵灰）之孔隙形成微小氣態包膜， 阻礙鋁渣（含集塵灰）中氮化鋁水解反應，過程中為 改善此一因輸送現象所引起的緩慢水解反應，多數 鋁渣（含集塵灰）藉由加入酸鹼藥劑的調整，或於液 態水中通入高壓蒸氣以提升液相反應溫度的方式， 使該鋁渣（含集塵灰）安定化，使其可進行後續處理 及掩埋處置，然而因各方法處理的操作程序及效率 均耗費時間及成本’面臨實用性的問題。 因此，對於含氮化鋁之鋁渣安定化問題，需要 發展操作程序簡便及效率高又操作時間短及成本低 的方法。 本發明之方法針對一種以水蒸氣去除鋁渣中氮 化鋁之方法；特別是關於一種將鋁渣中所含氮化鋁 進行水解的方法，該方法係利用水蒸氣直接與鋁渣 進行氣固反應，將鋁渣中所含之氮化鋁進行水解生 成氨氣之方法，鋁渣經由本發明之方法處理後，可 達到安定化及進行後續再利用目的。 當鋁渣經煉鋁製程之鋁金屬分選回收程序產生 後，本方法利用水蒸氣中之氣態的微小水分子，在 非使鋁渣（含集塵灰）形成液態漿狀而不產生液態水 膜條件下，以水蒸氣直接與鋁渣拌混方式，或經由 控制鋁渣形成一薄層使水蒸氣直接吹拂方式，甚或 經由控制鋁渣形成一薄層使水蒸氣直接熱蒸煮方 5 201038746 式，使已降低偶極力且含高活化能之氣態水分子， 能穿透竄入含有無數孔隙之鋁渣内，使令水蒸氣與 孔隙内所包覆的氮化鋁進行水解反應，進而因此令 氮化鋁被分解生成氨氣及氧化鋁，達到使鋁渣所含 氮化鋁安定化的目的，且方法中不需加入酸鹼藥 齊j在水蒸軋的作用下，可增加鋁金屬氧化水解機 會，使其轉化為氧化鋁，因此過程中不會產生氫氣， 又方法中增加其蒸氣壓促使氨氣迅速脫離紹渣的孔 隙，以達到氣固分離之作用，含氨之水蒸氣，可經 由冷卻及加熱循環，進行分離回收並重覆使用，減 少環境污染及清潔生產目標。 本發明之創新特點如下： 1. 以水瘵氣水解鋁渣中氮化鋁時水解效 2. 不使用酸鹼藥劑操作成本低。 β 3. 水解過程不產生氫氣，操作安全可靠。 4. 不產生廢水無廢水操作問題。 5. 銘座乾燥容易操作成本可大幅降低。 本毛明之創意能提供—可使煉銘製程中紹渣安 定化及後續:#源化之方法，其補能使廢水處理成 ^降低，也可免除污泥乾燥的處理成本，以減低銘 漬安定化所產生能耗與對環境的衝擊。 6 201038746 【實施方式】 本侧就以下實施例來作進一步說明，但應 瞭解的是，該等實施例僅為一 、為例不呪明之用，而不應 被解釋為本發明實施之限制。 <化學品來源> 煉銘製程之㈣及集塵灰渣。 ❹ Ο = 以含氮化㉟之紹渣為原料；⑻將該含I化銘之 人二置人反應槽使與水蒸氣進行拌自混合，以使該 氬化紹之|呂;查與水蒸氣進行熱解，此步反應 式如下： 化1呂之1呂造（s) + 4H20(gas)—A1(0H)3 + -十！q)、’（c)將該鋁渣進行加熱，以使含氨之水 2 Ά查分離；⑷分離後之含氨之水蒸氣導入反 ::二(e)將部分之水蒸氣進行冷凝，以使該含氨 L二進仃分離；⑴將已冷凝之水進行加熱產生蒸 軋（g)安定化之鋁渣。 <實施例2 > :a)以含氮化鋁之鋁渣為原料；㈦將該化鋁 ^ ~ 應槽，經由控制鋁渣形成一薄層使水蒸 接°人拂方式，以使該含氮化鋁與鋁渣與水蒸氣 進行水解，此步驟之反應式如下： 含氡化鈕> > 贿顧'邊⑴、+ Ai⑽3 + ’ k C )將該铭丨查進行加熱，以使含氨之水 7 201038746 =與=分離;⑷分離後之含氨之水蒸氣導入反 峨Λ部分之水蒸氣進行冷凝，以使該含氨 气Γ刀離，⑴將已冷凝之水進行加熱產生蒗 軋（g)安定化之鋁渣。 …座王…、 <實施例3 > Ο Ο =以含iU⑽之㉟㈣原料；（b)㈣含I化銘之 :入反應槽’經由控制鋁渣形成 ί;接熱蒸煮方式’以使該含氮化銘之銘渣與水蒸 =進仃水解，此步驟之反應式如下： 二=化鋁之鋁渣⑶ + 4H20(gas)~"AK0H)3 + —二Uiq) ; (c)將該鋁渣進行加熱，以使含氨之水 又乳與銘潰分離；⑷分離後之含氨之水蒸氣導入反 應，、’（e)將部分之水蒸氣進行冷凝，以使該含氨 ^軋進行分離；（f)將已冷凝之水進行加熱產生蒸 氣（g)安定化之紹渣。 <結果> 由實施例進行妓化之！呂渣可進行後續再利用。 、、綜上所述，本發明之以蒸氣進行鋁渣安定化之 =法，使用煉鋁製程所產生含氮化鋁之鋁渣做為起 。物並利用水蒸氣實施化學水解，且於氣固反應 餘件下進行鋁渣安定化，所產生之鋁渣，可為後續 再利用及資源化之用途。 、 淮以上所述者，僅為本發明之較佳實施例而已，當 不能以此限定本發明實施之範圍，即大凡依本發明 8 201038746 申請專利範圍及發明說明内容所作之簡單的等效變 化與修飾，皆仍屬本發明專利涵蓋之範圍内。 【圖式簡單說明】 圖1是一流程圖，說明本發明之流程；圖2是一流 程圖，說明於一空間内同時實施本發明之流程。 【主要元件符號說明】 圖1係本發明之流程圖其元件符號說明如下： 0 a:含氮化鋁之鋁渣為原料。 b:反應槽。 c :加熱安定化銘潰。 d:含氨之水蒸氣導入反應槽。 e :冷凝。 f :水進行加熱產生蒸氣。 g :安定化之鋁渣。 h :氨水。 〇 i : 一設施 9201038746 IV. Designated representative map: (=) The representative representative map of this case is: (1) and (2). (2) A brief description of the symbol of the representative figure: a: Aluminium slag containing aluminum telluride is used as raw material. b : reaction tank. c · Heat the stabilized slag. d: Water vapor containing ammonia is introduced into the reaction tank. e : Condensation. O f: Water is heated to generate steam. g : The stability of the slag. h : Ammonia. i : One facility five, this $ If there is a chemical formula, please reveal the best indication of the characteristics of the invention. The investigation of the hydrolyzed stability of AlN(s) + 2H2〇(gas)-^ A100H(S) + NHs (gas) (1) Aluminium slag containing aluminum oxide metal and water vapor hydrolysis reaction M Al〇〇H(S)+H2〇(gas)~~> A1(0H)3 (2) The ammonia-containing gas reacts with water vapor H2〇(gas)+NH3(gas)->NH4〇H(lia) (3) The total reaction of the aluminum slag containing nitrogen and water vapor to stabilize the hydrolysis. · A1N(S) + 4H2 gas (gas)-Al(OH)3+ NH4〇H(iiq) 1-6. Description of the Invention: [Technical Field] The present invention relates to a method; a method for removing aluminum in water by steam 2 201038746 A method for aluminizing aluminum, in particular, a method for hydrolyzing aluminum nitride contained in aluminum slag (including dust collecting ash) by arranging aluminum slag (including dust collecting ash) into a slurry without adding water Under the condition, the water vapor is directly reacted with the aluminum slag (including the dust collecting ash) to hydrolyze the aluminum nitride contained in the aluminum slag to form alumina, and the aluminum slag can be treated by the procedure of the present invention. Stability and The purpose of continuous reuse. [Prior Art] The aluminum slag produced in the 〇 reclaimed aluminum smelting process is caused by the nitriding of the smelting process in the process of smelting The nitrogen component is combined with aluminum metal to be nitrided, and the nitriding substance in the slag is very stable in an inert two-temperature environment. In the air, when the temperature is higher than 7 〇 〇, the surface of the material will oxidize. In hydrogen and dioxide counter-calculation up to 980 ° C, aluminum nitride is still quite stable until 13703⁄4, ❹ oxide film can still protect the material, but when the temperature is higher than 1370, a large amount of oxidation will occur. In the aqueous phase, due to the action of water molecules, the hydrolysis rate of aluminum nitride in water is extremely slow. The mineral acid dissolves slowly by invading the boundary of the granular material, while the strong base makes it by invading the granular aluminum nitride. Dissolved. Aluminum nitride is resistant to most of the melted salts, including vapors and cryolite. The prior art, such as Patent Publication Nos. 455514 and No. 200815609 and No. 233312, are all made of aluminum slag by adding water 3 201038746 and adding various acid tests _ or other procedures to make: nitrogen, The aqueous phase is hydrolyzed to remove aluminum nitride, although the chemical treatment can be used. However, because the water of the nitriding water-deficient phase is required by the acid (four) agent and the conditions such as heating and time, the nitriding agent is used. After reacting with Ming metal, the probability of occurrence of dangerous I-an accidents such as gas explosion and fire explosion is encountered. In practice, it faces operational cost, efficiency and safety problems, and cannot achieve the purpose of stabilization and recycling, and subsequent secondary aluminum slurry. The cost of drying energy consumption is economically tested. Further, as in the method of Patent Publication No. 1274463, the nitriding is hydrolyzed and stabilized by an aqueous phase reaction. Although a high-pressure base gas is used, the purpose is to provide energy for hydrolysis of the aqueous phase, thereby increasing the temperature of the water and accelerating the temperature thereof. The hydrolysis reaction rate is still not dehydrated by the aqueous phase, and the formula is used to stabilize the treatment, and the subsequent drying energy consumption of the slurry is facing the problem of operation cost and efficiency. Therefore, the problems of prior art are summarized as follows: 1 • The use of liquid water for the hydrolysis of aluminum nitride is inefficient. 2. Increase the cost when using an acid-base agent to accelerate the hydrolysis of aluminum nitride. 3. The hydrogen produced during the hydrolysis process is prone to accidents. 4. The problem of generating a large amount of wastewater when using liquid water for hydrolysis. [Dehydration and drying are not a cost increase. Since the known treatment and treatment methods for the stabilization of the slag are all carried out by the non-phase hydrolysis method, the aluminum nitride is hydrolyzed by the liquid phase, and the hydrolyzed process is caused by the action of the liquid water molecules, causing the liquid 4 201038746 state water and aluminum slag (including The pores of the dust collecting ash form a tiny gaseous envelope, which hinders the hydrolysis reaction of aluminum nitride in the aluminum slag (including dust collecting ash). In order to improve the slow hydrolysis reaction caused by the transportation phenomenon, most of the aluminum slag Dust ash can stabilize the aluminum slag (including dust collection ash) by adding an acid-base agent or by introducing high-pressure steam into liquid water to raise the liquid phase reaction temperature, so that it can be subsequently treated and buried. Disposal, however, due to the operational procedures and efficiency of each method, it takes time and cost to face practical problems. Therefore, for the problem of stability of aluminum slag containing aluminum nitride, it is necessary to develop a method which is simple in operation, high in efficiency, short in operation time, and low in cost. The method of the invention is directed to a method for removing aluminum nitride in aluminum slag by using water vapor; in particular, a method for hydrolyzing aluminum nitride contained in aluminum slag, which is directly gas-solidified with aluminum slag by using water vapor. In the reaction, the aluminum nitride contained in the aluminum slag is hydrolyzed to form ammonia gas, and the aluminum slag can be stabilized and subsequently reused after being treated by the method of the present invention. After the aluminum slag is produced by the aluminum metal sorting recovery procedure of the aluminum smelting process, the method utilizes the gaseous micro water molecules in the water vapor to form a liquid slurry without generating liquid water in the aluminum slag (including the dust collecting ash). Under the conditions of the membrane, the steam is directly mixed with the aluminum slag, or a thin layer is formed by controlling the aluminum slag to directly blow the water vapor, or even a thin layer is formed by controlling the aluminum slag to directly steam the steam. Therefore, the gaseous water molecules with reduced dipole force and high activation energy can penetrate into the aluminum slag containing numerous pores, so that the water vapor and the aluminum nitride coated in the pores are hydrolyzed, thereby The aluminum nitride is decomposed to form ammonia gas and alumina, so as to stabilize the aluminum nitride contained in the aluminum slag, and the method can increase the oxidation of the aluminum metal without adding the acid-base agent. The opportunity of hydrolysis is converted into alumina, so no hydrogen is generated in the process, and the vapor pressure is increased in the method to prompt the ammonia gas to quickly separate from the pores of the slag to achieve the function of gas-solid separation, and the water vapor containing ammonia It may be a cooling and heating cycle is repeated using the recovered and separated, and reduce environmental pollution clean production goals. The innovative features of the invention are as follows: 1. Hydrolysis efficiency when hydrolyzing aluminum nitride in aluminum slag with water helium gas 2. Low operating cost without using acid and alkali chemicals. β 3. No hydrogen is produced during the hydrolysis process, and the operation is safe and reliable. 4. No wastewater and no wastewater operation problems. 5. Easy to operate and easy to operate. Ben Maoming's creativity can provide - the process of refining and refining the slag in the refining process: #源化的方法, which can make the wastewater treatment into a lowering, can also avoid the sludge drying treatment cost, to reduce the inscription The energy consumption generated by stability and the impact on the environment. [Embodiment] The present invention is further described in the following examples, but it should be understood that the embodiments are not intended to be construed as limiting. <Chemical Sources> (4) and dust ash. ❹ Ο = using slag containing nitriding 35 as raw material; (8) mixing the immersion reactor containing I ing ming into the reaction tank to mix with water vapor to make the argon sulphide; The steam is pyrolyzed, and the reaction formula of this step is as follows: 1. 1 LV 1 ru (s) + 4H20 (gas) - A1 (0H) 3 + - 10! q), '(c) the aluminum slag is heated to separate the ammonia-containing water 2; (4) the separated ammonia-containing water vapor is introduced into the reverse:: (e) a part of the water vapor is condensed, In order to separate the ammonia-containing L-injection enthalpy; (1) heating the condensed water to produce a (g) stabilized aluminum slag. <Example 2 > : a) using aluminum slag containing aluminum nitride as a raw material; (7) forming a thin layer of aluminum slag by controlling the aluminum slag to make the water steamed to a person's way, so that The aluminum nitride-containing aluminum slag and water vapor are hydrolyzed, and the reaction formula of this step is as follows: containing a sputum button >> bribes 'edge (1), + Ai (10) 3 + ' k C ) So that the ammonia-containing water 7 201038746 = is separated from the =; (4) the separated ammonia-containing water vapor is introduced into the water vapor of the ruthenium portion to be condensed, so that the ammonia-containing gas is separated, and (1) the condensed water is subjected to Heating produces rolled (g) stabilized aluminum slag. ...King..., <Example 3 > Ο Ο = 35 (four) raw material containing iU (10); (b) (iv) containing I: into the reaction tank 'by controlling aluminum slag formation ί; hot cooking method' The slag containing nitrite and water steaming = hydrolysis of the hydrazine, the reaction formula of this step is as follows: 2 = aluminum slag (3) + 4H20 (gas) ~ " AK0H) 3 + - two Uiq); (c The aluminum slag is heated to separate the ammonia-containing water from the emulsion; (4) the separated ammonia-containing water vapor is introduced into the reaction, and '(e) a part of the water vapor is condensed to make the content Ammonia is rolled to separate; (f) the condensed water is heated to produce steam (g) stabilized residue. <Results> Degenerate by the embodiment! Lu slag can be reused. In summary, in the present invention, the aluminum slag is stabilized by steam, and the aluminum slag containing aluminum nitride produced by the aluminum smelting process is used as the starting point. The material is chemically hydrolyzed by steam, and the aluminum slag is stabilized under the gas-solid reaction remainder, and the aluminum slag produced can be used for subsequent reuse and resource utilization. The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent change of the patent application scope and the description of the invention according to the invention 8 201038746 And modifications are still within the scope of the invention patent. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a flow chart illustrating the flow of the present invention; and Fig. 2 is a schematic diagram showing the flow of the present invention simultaneously implemented in a space. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a flow chart of the present invention, and its component symbols are as follows: 0 a: Aluminum slag containing aluminum nitride is used as a raw material. b: reaction tank. c: Heating stabilized and destroyed. d: Water vapor containing ammonia is introduced into the reaction tank. e : Condensation. f: Water is heated to generate steam. g : stabilized aluminum slag. h : Ammonia. 〇 i : a facility 9