200909355 九、發明說明： 【發明所屬之技術領域】 本發明係有關於氧化鋁的萃取。 【先前技術】 本發明的内容中’術語「苛性物」表雜、姊_氧化物、氮氧化 物、和碳酸鹽。 拜爾法在世界各地利用以由銘馨土礦石中萃取氧化銘。此為一渴法涉 及驗的使用。拜爾法由許多步驟賴成，包括在驗中消化錄土，紅泥的 《 淨化和移除’氧化銘的沉澱以及其後的鍛燒，以得到純氧化銘。 鋁礬土’即鋁質的鑛石，在提高的溫度下消化於苛性物中，以從產生 包含豐富=稱之為綠液的苛性銘酸鹽溶液、以及稱之為紅泥的礦石殘留物 之泥漿中萃取可用的氧化铭。綠液是氧化㈣餘和i接著由雜操作而 來的泥漿急速冷卻至大氣條件，並且受麟淨化及/或過_作，以分離所 述過，和=溶液和不可溶_石殘留物。清洗_石殘_或紅泥以回收 所夾π的苛性銘酸鹽溶液然後吾棄。所述過飽和的苛性鋁酸鹽溶液進一步 =、，並且在，或沒有先前沉_三水合氧德為日日日種的情況下，氧化銘 =澱為^水合紐在—般齡巾，在該舰和的苛伽酸齡液中5〇% • >解的氧化纟g &氧化纟S ’並且氧化#g所餘留的部份被溶 I 液所2留，其被时以消化為無賴苛性織财液，稱之驗液。過滤 所述/冗;殿的一水合氧化銘，以水清洗並且在約麵（到⑻。c锻燒以製造 出99%純，化銘。拜爾法其中一個最重要的步驟為消化，其中絲土中最 大可能的氧她量射鮮取出來。這依魏絲土的品質和祕而定。 銘礬土可以不同形式出現，視其形成的地質狀況而定。除此之外銘馨土 的三種主要形式有關於⑷水合作用分子的水的數目；以及⑻結晶質結構為 =銘石、軟水銘石和硬水魅。三水如為_種具有三水化合物形式的 氫氧化銘mg；5和硬水纟g;5為具有單―水合物形式的氫氧化物-氣化 鋁。這些形式的基本特性如表1所示。 200909355 表1200909355 IX. DESCRIPTION OF THE INVENTION: TECHNICAL FIELD OF THE INVENTION The present invention relates to the extraction of alumina. [Prior Art] In the context of the present invention, the term "caustic" is used to describe impurities, cerium oxides, nitrogen oxides, and carbonates. Bayer Law is used throughout the world to extract and oxidize from the minerals of Mingxin. This is the use of a thirst method. Bayer's method is based on many steps, including digesting the soil in the test, red mud's "purification and removal" of the oxidation of the precipitation and subsequent calcination to obtain pure oxidation. Bauxite, an aluminum ore, is digested in caustic at elevated temperatures to produce a caustic acid solution containing abundant = called green liquor, and an ore residue called red mud. The available oxidation is extracted from the mud. The green liquor is oxidized (iv) and then the mud from the miscellaneous operation is rapidly cooled to atmospheric conditions and purified by the lining and/or over-dissolved to separate the solution, and = solution and insoluble_stone residue. Wash _ stone residue _ or red mud to recover the caustic acid solution of the π sandwich and then discard it. The supersaturated caustic aluminate solution is further =, and, in the case of, or without, the previous sinking_trihydrate oxygen is the day of the day, the oxidation is in the form of a hydration 〇 〇 & & 苛 • • • • • • • • • • • • • • • • • • • • 苛 苛 苛 苛 苛 苛 苛 苛 苛 苛 苛 苛 苛 苛 苛 苛 苛 苛 苛 苛 苛 苛 苛 苛 苛 苛 苛 苛Rogue caustic woven liquid, called the test liquid. Filtration of the / redundancy; the hydration of the temple is oxidized, washed with water and calcined at about (8).c to produce 99% pure, mingming. One of the most important steps of Bayer's method is digestion. The largest possible oxygen in the silk soil is taken out freshly. This is determined by the quality and secret of the Weisi soil. Mingyu soil can appear in different forms depending on the geological conditions of its formation. The three main forms are related to (4) the number of waters of hydration molecules; and (8) the crystal structure is = Mingshi, soft water Mingshi and hard water charm. Sanshui is a kind of hydroxide with the form of trihydrate; And hard water 纟g; 5 is a hydroxide-aluminized aluminum with a monohydrate form. The basic characteristics of these forms are shown in Table 1. 200909355 Table 1
單位 二水招石 軟水鋁石 ~--—- 硬水鋁石 成份 ai(oh)3 AIO(OH) AIO(OH) 最大氧化鋁 % 65.4 85 — --- 85 含量 晶糸 單斜 斜方 斜方 密度 g/cm3 2.42 「3.01 ------- 3.44 快速脫水作 °C 150 350 450 ~ 用的溫度 — J 消㈣條件(苛性物濃度、消化溫度及壓力)係依據銘礬土的成份而定。 具有高三水銘石成份的礦石可在14(rC被消化，而軟水紹石需要勘到 240〇C 〇 i. 雖然較高溫度和高的苛性物濃度通常對於最大消化效率理論上是有利 的’但有-些不利之處像是雜關題、其他絲土成份的消化可=性以 及較，的能量消耗。如此增加了生產銘的成本。因此對於包含低於5%的單 ^合氧化鋁使用低溫消化(100到150。〇。由於90到97%的三水合氧化鋁在 這些條件下鮮取出來胁棄單水合氧倾在紅财以轉較低的回收成 本。然而’如果該織土包含多於5%的單水合氧脑，則使用到3 操作的尚溫消化單元以萃取所有氧化鋁的90到97%(單水合及三水人 較偏好所使用的銘礬土為富於三水紹石成份的。然而，由於其0耗竭， 礦石變传較富於軟水!s;5相。因此所述消化製程被進—步修改以增加 =的消化步驟’-有助於在低溫下萃取三德石，以及另—個在^高溫 =取軟水如。如此即絲有兩鋪化。要降倾娜土碌的氧化= =成本對於氧化社業是—種減。這部份由礦井帽石的提選本身來 嘗4，以降低運輸和廢料處理的成本。 200909355 、、，礙，諸如來的氧触’在水、驗金屬鹽或酸心以及鹽溶 液或氣體翔或朗存树，藉由對於礦;5的電磁輻聽理，可同時導致 結構和化學_化。紐馳贿_水齡她，M料成更乾淨且 更有效率的化學反應以及更高的產量。 在氫氧化納和微波輻射存在時，沒有關於銘礬土的結構瓦解和反應性 之專利或文獻資料的報告。然而，關於微波在金舰石中用於輕鬆研磨的 應用則有報告；ShawJaymondW—a'edmdogidi^u^p^ Umited> Australm)。不珊制微波魏不同，且其視所對應的’ 魏讀錢射賴舰錄奴雜後的加熱效應 在以下的表2中表示。 表2 : 材料 加熱速率， 最高溫度， °C/秒 °C Fe3〇4 1200 1000 Fe2〇3 170 1000 AI2O3 80 1900 CaO 5 200 CaC03 5 130 S1O2 2 70 【發明内容】 《所欲解決之技術問題》 萃 取的製程 =明_中_個目岐提供鎌礦石碾碎使賴少能量之氧化銘 本^月的另一個目的是提供用於增進的反應比率之方法。 本毛明的另—個目的是提供以減少的加熱所料間的氧化鮮取之方 200909355 本發月的另-個目的是提供經濟的氡化㉟萃取之製程。 本發明的另—個目的是提供—種氧化鱗取之製程，以增加消化的效 率。 《解決問題之技術手段》 $其提供—種由含銘礦石中萃取氧化1s的製程，包括以下 步驟： 測定礦石中的氧化鋁和二氧化矽含量； 將具有夕於礦石總質量5。/。的氧化銘以及少於礦石總質量5〇%的二氧 化石夕之礦石置於反應槽中； 物與該礦石混合，並可選擇性地與—種添加物(I)混合，以形成 將此反應質里文控於800到3〇〇〇應2範圍内、功率25〇w到5〇KW的 電磁輕射，作用一段i微秒到3_秒的時間，發生於溫度_到⑽叱之 下’以形成包含!g麵和矽酸蘭中間產物以及雜質； $應針以水淋財__分離不可㈣紅泥域留物，並且以 獲付i a 18酸鹽、石夕酸鹽和飢酸鹽的渡液； 藉由加熱域液巾分離出魏鹽和其铺f為前物，可選擇性地盘 選合，ί %到35叱的溫度並且冷卻至4到靴以獲得提 選的銘酸鹽溶液；以及 以傳統方法由铭酸納萃取出氧化紹。 通常，所述苛性物是由鹼金屬族中所選擇出來。 。通常，所述之齡顧包括納、鉀和_氧化物、氫氧化物、和碳酸 鹽。 通常’氧化織表示為叫〇>3的苛性物之重量比在1:〇 3 f|Jl2 $的範 圍内。 通常，苛性物為固體的形式。 通常，苛性物為10到99%的苛性泥漿的形式， 通常，苛性物為蒸氣的形式。 通常，所述添加物(I)是由鹼土金屬族中所選擇出來。 200909355 通常’所述之驗土金屬族包括的、鋇、銀和鎮的氧化物。 通常，所述添加物以鑛石總重量的〇到2〇%的範圍來添加。 通常，所述電磁波是微波。 通常，所述的水在4°C到15(TC的範圍内。 通常’氧化紹與表示為碳酸納的苛性物之重量比在1:〇3到1:25的範 圍内 通常，添加物(II)與二氧化石夕的莫耳比在1:2到出的範圍内。 通常，添加物(II)是由鹼土金屬族中所選擇出來。 山通常’所述之驗土金屬族包括转、鋇、錯和鎂的氧化物、氯氧化物和 碳酸鹽。 【實施方式】 依照本發明的-個最佳實酬，揭露礦石㈣職氧化触液以及微 波輪射’其贿A1形雜義，制樣财種觀切軸。這些所形 成的化合物/混合物賴藉由水的賴硫解，紐後受胁傳統的水熱處 在本發明中，礦石與鹼諸如氫氧化鈉與微波輻射一同揭露，可致使A! 开>成鋁酸鈉，並同樣將二氧化矽種轉變為矽酸鈉。這些隨後可藉由水的溼 潤而溶解’或隨後受控於傳統的水熱處理，以回收氧化鋁。 微波在很廣泛的頻率範圍中出現’從900MHz到3000MHz。然而，在 多數國家中，於工業及家庭使用所允許的頻率為2450MHz。在多種瓦特數 最高達50KW中皆可得到微波。 ’ 依照本發明，在一種最佳實施例中，提供了一種從含銘礦石中萃取氧 化艇的製程。礦石被測定其氧化銘和二氧化砍含量。較佳地，具有氧化銘 夕於5%礦石總質置及二氧化石夕少於50%礦石總質量的礦石，可用於本發明 的製程。礦石是乾或渥研磨至大约60篩孔。研磨的礦石帶入第一反應槽中 且較佳地以苛性物來處理，以及97%純度的氫氧化鈉粉末，選擇性地與添 加物(I)形成一反應質量。苛性物是由驗金屬族中所選擇出來，包括納、卸 和鋰的氧化物、氫氧化物、和;6炭酸鹽。礦石中的氧化紹對表示為碳酸納的 200909355 可性物在1:G.3到1:2.5的比例中。反應質量(礦石與稀釋/濃縮的Na〇H)受控 於電磁輻射，較佳地是在功率25〇w到5〇KW、以8〇〇到3〇〇〇mHz範圍^ 的微波作用-段1微秒到i小時的時間，以形成包含纖納和雜納的中 間產物，以及如紅泥的其他雜質。第丨圖和第2圖表示在將其受控於紅泥 之前和之後，在紅泥巾錄场抑XRD影像。第2陳分散注意力，其 提高了反應性。 、 通常，所述添加物(I)是由鹼土金屬族中所選擇出來，其包括鈣、鋇、 錄和鎂的氧化物、氫氧化物、礙酸鹽。所縣加物(⑽礦石總重Q到鐵 的範圍中被添加。 &中間質量接著在反應槽中以熱水淋溶，以從濾液巾溶解出嫌納和石夕Unit Dishui Zhaoshi soft boehmite ~---- Hard diaspore composition ai(oh)3 AIO(OH) AIO(OH) Maximum alumina% 65.4 85 — --- 85 Content crystal 糸 斜 oblique square Density g/cm3 2.42 "3.01 ------- 3.44 Rapid dehydration °C 150 350 450 ~ Temperature used - J (4) Conditions (caustic concentration, digestion temperature and pressure) are based on the composition of the earthworm The ore with high Mishui Mingshi composition can be digested at 14 (rC, while softwater shale needs to be surveyed to 240 〇C 〇i. Although higher temperature and high caustic concentration are usually theoretically beneficial for maximum digestion efficiency. 'But there are some disadvantages like the cross-cutting question, the digestion of other silky soil components, the sex and the energy consumption. This increases the cost of production. So for inclusions containing less than 5% Alumina is digested with low temperature (100 to 150. 〇. Since 90 to 97% of alumina trihydrate is freshly taken under these conditions to discard the monohydrate oxygen, it is dumped in Hongcai to lower the recovery cost. However, if The woven soil contains more than 5% of the monohydrated oxygen brain, and the use of 3 operations is still The unit extracts 90 to 97% of all alumina (the monohydrate and trihydrate people prefer to use the Ming Tuo soil as rich in Sanshui Shaoshi. However, due to its 0 depletion, the ore is more rich in soft water. !s;5 phase. Therefore, the digestion process is further modified to increase the digestion step of the =' - it helps to extract the sedite at low temperature, and the other is at high temperature = take soft water, such as silk. There are two deposits. It is necessary to reduce the oxidation of the soil. ==The cost is reduced for the oxidation industry. This part is tasted by the selection of the mine hatstone itself to reduce the cost of transportation and waste disposal. 200909355 ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, New Zealand's bribe _ water age her, M material into a cleaner and more efficient chemical reaction and higher yield. In the presence of sodium hydroxide and microwave radiation, there is no structural collapse and reactivity of the Ming 矾 soil Report on patents or literature. However, regarding microwaves used in gold ship stones for light The application of grinding is reported; ShawJaymondW-a'edmdogidi^u^p^ Umited> Australm). The microwave effect is different, and the heating effect of the corresponding Wei’s It is shown in the following Table 2. Table 2: Material heating rate, maximum temperature, °C/sec °C Fe3〇4 1200 1000 Fe2〇3 170 1000 AI2O3 80 1900 CaO 5 200 CaC03 5 130 S1O2 2 70 [Summary of the Invention] The technical problem to be solved" The process of extraction = Ming _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Another purpose of Ben Maoming is to provide a means of reducing the oxidation between the heating materials. 200909355 Another purpose of this month is to provide an economical process for the extraction of 35. Another object of the present invention is to provide a process for oxidizing scales to increase the efficiency of digestion. "Technical means to solve the problem" $Provided - a process for extracting oxidation for 1 s from containing ore, including the following steps: Determination of the content of alumina and ceria in the ore; will have the total mass of the ore 5 . /. Oxidation and the ore of less than 5% of the total mass of the ore is placed in the reaction tank; the material is mixed with the ore and optionally mixed with the additive (I) to form In the reaction quality, the electromagnetic light is controlled in the range of 800 to 3 〇〇〇, and the power is from 25 〇w to 5 〇 KW. The time is from i microsecond to 3 sec, which occurs at temperature _ to (10). The next 'to form the inclusion of the !g surface and the yttrium acid intermediates and impurities; $ should be needled with water to __ separation can not (four) red mud domain retention, and to pay ia 18 acid salt, ashes and hunger The salt of the acid salt; by separating the Wei salt and the paving f as a precursor by heating the liquid towel, the tray can be selectively selected, ί % to 35 叱 and cooled to 4 to obtain the selected The acid salt solution; and the extraction of the acid by sodium silicate in a conventional manner. Typically, the caustic is selected from the group of alkali metals. . Typically, the ages include sodium, potassium and oxides, hydroxides, and carbonates. Usually, the oxidative weave is expressed as a weight ratio of caustic of 〇>3 within the range of 1: 〇 3 f|Jl2 $. Typically, the caustic is in the form of a solid. Typically, the caustic is in the form of 10 to 99% caustic slurry, typically the caustic is in the form of a vapor. Typically, the additive (I) is selected from the group of alkaline earth metals. 200909355 Usually the oxides of the earthworms included in the earthworms, strontium, silver and towns. Typically, the additive is added in the range of 〇 to 2% by weight of the total weight of the ore. Typically, the electromagnetic waves are microwaves. Typically, the water is in the range of from 4 ° C to 15 (TC). Typically the weight ratio of 'oxidized to caustic with sodium carbonate is in the range of 1:3 to 1:25. II) The molar ratio to the cerium dioxide is in the range of 1:2. Generally, the additive (II) is selected from the group of alkaline earth metals. , 钡, 和, and magnesium oxides, oxychlorides, and carbonates. [Embodiment] According to the present invention, the best remedy, revealing ore (four) occupational oxidizing contact liquid and microwave firing 'the bribe A1 shape The sampled compound/mixture is formed by the thiol solution of water, and the traditional hydrothermal heat is in the present invention. The ore and alkali such as sodium hydroxide are combined with microwave radiation. It can be revealed that A! can be turned into sodium aluminate and the cerium oxide species can also be converted to sodium citrate. These can then be dissolved by the wetting of water' or subsequently controlled by conventional hydrothermal treatment to recover Alumina. Microwaves appear in a wide range of frequencies from 900MHz to 3000MHz. However, in many In the country, the frequency allowed for industrial and domestic use is 2450 MHz. Microwaves are available in a variety of wattages up to 50 kW. In accordance with the present invention, in a preferred embodiment, an extraction from a containing ore is provided. Oxidation boat process. The ore is determined by its oxidation and dioxide content. Preferably, it has an ore that oxidizes the total mass of 5% ore and less than 50% of the total mass of ore on the day of the dioxide. Process of the invention. The ore is dried or mashed to about 60 mesh. The ground ore is brought into the first reaction tank and preferably treated with caustic, and 97% pure sodium hydroxide powder, optionally with Additive (I) forms a reaction mass. The caustic is selected from the group of metals, including oxides, hydroxides, and 6-carbonates of sodium, unloading, and lithium. The oxidation in the ore is expressed as The 200,909,355 carbonates are in a ratio of 1:G.3 to 1:2.5. The reaction mass (ore and diluted/concentrated Na〇H) is controlled by electromagnetic radiation, preferably at a power of 25 〇w. 5〇KW, with a range of 8〇〇 to 3〇〇〇mHz^ Function - the period of 1 microsecond to i hours to form intermediates containing soda and nano, as well as other impurities such as red mud. Figures 2 and 2 show that before being controlled by red mud and After that, the XRD image is suppressed in the red mud towel recording. The second Chen distracts attention, which improves the reactivity. Generally, the additive (I) is selected from the group of alkaline earth metals, including calcium and strontium. , recorded and magnesium oxides, hydroxides, acid salts. County additives ((10) ore total weight Q to iron is added. & intermediate mass is then leached with hot water in the reaction tank, Dissolved from the filtrate towel
酸納、鈒以及其他雜質。所獲得的遽液包括鋁酸鹽溶液。紅泥接著以觸。C 的熱水清洗。做為添加物⑻的石灰被加人嫌鹽溶液，在·。C作用3〇分 鐘’以移除二氧化;^該溶液接著被冷卻到4(rc，其分離諸如雜鹽和叙 =鹽的雜質以形成提選_酸鹽溶液。通常，添加师)嫌土金屬族中所 選擇出來’其包括m銷和鎂的氧化物、氫氧化物和碳酸鹽。通常， 濾液中的二氧切總量與添加物(11)的莫耳比在1:G3到1:25的範圍内。 所述提選的鋁酸鹽溶液藉由傳統的製程進一步送出而用於氧化鋁萃 取。在傳統製程巾氧錄進—步送出而餘三水合氧化㈣沉澱。這受控 於鍛燒以萃取氧化鋁。 微波效果的優點： (1) 不像傳統方法，如果以微波加熱，則可建構起數個局部的熱點，其 導致增進的反應速率。 ^ (2) ，波轉移的時間尺度是1G_9秒，而由此能量而來的動力分子鬆 弛大約疋10秒、。當其加熱的料越快，導致反應速率及產物產量的增進。 (3) 微波#自料致在關粒子中表面缺_產生。這些表面缺陷的產生 致能增加轉子運動，並且因此幫助這·子料被激發至更高的能階。 (4) 微波輻射可被歸因於諸如水之類的溶劑之過熱處理(增加溶劑或溶 液的/弗點)及/或與水溶解的鹽及域酸，其致能該反應以在更高的溫度下執 11 200909355 行’並且導致此反應及/或反應性的速率增加。 (5) 微波可用於拜爾消化，可與諸如鈣或鎂的氧化物及氫氡化物、有機 錯合劑等的添加物一'同使用或不一同使用。 (6) 微波處理可麟嫌土礦石和苛性物混合物無水或有水兩者的情況 下，其正足夠濕潤碌石粒子然後接著進行氧化紹萃取。Sodium, strontium and other impurities. The obtained mash includes an aluminate solution. The red mud then touches. Hot water cleaning of C. The lime used as the additive (8) is added to the salt solution. C acts for 3 ' ' to remove the oxidize; ^ the solution is then cooled to 4 (rc, which separates impurities such as hetero-salts and salts to form a _acid salt solution. Usually, add a division) Selected from the metal family's include m-and magnesium oxides, hydroxides and carbonates. Usually, the molar ratio of the total amount of dioxane in the filtrate to the additive (11) is in the range of 1:G3 to 1:25. The extracted aluminate solution is further sent for alumina extraction by a conventional process. In the traditional process, the oxygen is recorded in the step-by-step and the remaining three hydrates are oxidized (4). This is controlled by calcination to extract alumina. Advantages of the microwave effect: (1) Unlike conventional methods, if heated by microwaves, several local hot spots can be constructed, which leads to an increased reaction rate. ^ (2), the time scale of wave transfer is 1G_9 seconds, and the power molecule derived from this energy relaxes for about 10 seconds. The faster the material is heated, resulting in an increase in reaction rate and product yield. (3) Microwave # self-materials cause surface defects in the particles. The generation of these surface defects increases the rotor motion and thus helps the material to be excited to a higher energy level. (4) Microwave radiation can be attributed to overheating of a solvent such as water (increasing the solvent or solution / point) and/or salt and domain acid dissolved with water, which enables the reaction to be higher The temperature of 11 200909355 is performed at the temperature 'and causes an increase in the rate of this reaction and/or reactivity. (5) Microwaves can be used for Bayer digestion, and can be used together with or without additives such as oxides of calcium or magnesium, hydroquinones, organic complexing agents, and the like. (6) Microwave treatment In the case where the mixture of earth ore and caustic mixture is anhydrous or has water, it is sufficient to wet the stone particles and then carry out the oxidation extraction.
⑺對於鋁礬土礦石粒子的微波處理可打破氧化鋁水合物的結構從社晶 質到非晶質，並且既然從鋁礬土礦石淋溶非晶質氧化鋁的效率大於其 質的形態’則增加了氧化鋁萃取的效率。 、^aB 同時也设想對於礦物之微波處理的製程，如以上所說明之銘馨土的情 況，也可刺於其他的雜。上述處理也线對於_土巾豐富的其他^ 屬諸如二氧化錫、氧化鐵等是有用的。 沒有關於當氫氧賴和微波輻鱗在時，綠土的結構瓦解和反應性 之專利或文獻齡的報告。然而，有報導指出微波在金屬礦石巾對於其輕 易研磨/礙碎的應用。 〃二 本發明將以接下來的示财描述，鱗_麟峰何形式限制本發 明，而僅為示例本發明。 示例1 _測定40 gm鋁礬土礦石的氧化鋁及二氧化矽含量。該礦石包含45.5% I 氧化減2.3%二氧化攻。該礦石被乾研磨至約6〇 _孔。該研磨的礦石帶入 反應槽中且與純度97%的雜魏合以形成反應。氧德料性物(如 Na2C〇3)的重量比維持在〇 5。反應質量受控於功率9〇〇 w、頻率245〇MHz 的電磁辕射’於289°C的溫度下作用一段9分鐘的時間，以形成包含銘酸鈉 和魏鈉以及其他雜質的中間產物。該中間產物接著在反應槽中被淋溶， 使^ 145 gm的熱水以從中間產物中溶解可溶性的鋁酸鈉和矽酸鈉以及其他 雜質為滤液，而紅泥為殘留物。不可溶的紅泥在1〇(rc下以4〇畔的熱水清 ，。所得銘酸鹽溶液在20(TC與做為添加物⑼的4牌石灰反應3〇分鐘以 为離一氧化$。織其接著被冷卻以移除财㈣祕質。減鹽溶液藉 由傳統製程被送出做為氧化細收。根據紅泥的氧她含量，氧化銘萃取 12 200909355 的效率可得為85.91%。 示例2 示例2如同示例1來實行，其中該反應質量受控於微波作用6分鐘， 於溫度196°C下發生。氧化銘對苛性納(如Na；2C〇3)的重量比維持在〇 50。氧 化鋁萃取的效率可得為87.67%。 示例3 示例3如同示例1來實行，其中該反應質量受控於微波作用3分鐘， 於溫度161°C下發生。氧化鋁對苛性鈉(如Na2C〇3)的重量比維持在〇 5〇。氧 ί 化鋁萃取的效率可得為82.40%。 示例4 示例4如同示例1來實行’其中該反應質量受控於微波作用9分鐘， 於溫度383°C下發生。氧化銘對苛性納(如他⑺3)的重量比維持在〇 7〇。氣 化鋁萃取的效率可得為80%。 示例5 示例5如同示例1來實行，其中該反應質量受控於微波作用9分鐘， [ 於溫度332 C下發生。氧化銘對苛性鈉(如NafO3)的重量比維持在〇·85。氧 化鋁萃取的效率可得為63〇/〇。 微波處理以多個階段來實行。在淋溶過後已微波反應的紅泥，再—次 與分配在14些階段中的苛性物受控於微波。可觀察到多個階段增進製程中 的萃取效率。 示例6到10以兩階段來實行。 示例6 13 200909355 示例6如同示例1來實行，其中該反應質量受控於微波作用18分鐘， 於溫度700°C下發生。氧化鋁對苛性鈉(如NafO3)的重量比維持在〇 51。氧 化鋁萃取的效率可得為95.86%。 示例7 示例7如同示例1來實行，其中該反應質量受控於微波作用12分鐘， 於溫度390°C下發生。氧化鋁對苛性納(如NafCb)的重量比維持在〇 51。氧 化鋁萃取的效率可得為90.72%。 不例8 示例8如同示例1來實行，其中該反應質量受控於微波作用6分鐘， 於溫度343°C下發生。氧化鋁對苛性鈉(如NafO3)的重量比維持在〇 51。氧 化鋁萃取的效率可得為86.50%。 示例9 示例9如同示例1來實行，其中該反應質量受控於微波作用μ分鐘， 於溫度285°C下發生。氧化鋁對苛性鈉(如NasCO3)的重量比維持在0 70。氧 化鋁萃取的效率可得為83.62%。 示例10 示例10如同示例1來實行，其中該反應質量受控於微波作用18分鐘， 於溫度390°c下發生。氧化銘對苛性納(如Na2C〇3)的重量比維持在0.85。氧 化鋁萃取的效率可得為84.23%。 示例11 示例11如同示例1來實行，其中使用100 gm的鋁礬土。該反應質量 受控於微波作用9分鐘，於溫度192°C下發生。在這個示例中，控制此反應 質量的製程以三個階段’與分配在這些階段中的苛性物來實行。氧化I呂對 苛性鈉(如Na2C〇3)的重量比維持在0.85。氧化鋁萃取的效率可得為85.24%。 14 200909355 示例12、13和14如同示例1來實行，並結合了其他傳統的技術，其中微 波反應的混合物被水熱處理，其中分離出來的紅泥被加熱到溫度24〇c>c。可 注意到的是在這些示例中，儘管鋁礬土的裝載增加，消化的效^仍提高。 示例12 示例12如同示例1來實行，其中100 gm的鋁礬土與苛性物反應。該 反應質量受控於微波作用8分鐘’於溫度39(TC下發生。氧化銘對苛性納(如 NaaCOO的重量比維持在〇.7。消化效率可得為86 47%。 示例13 示例13如同示例1來實行，其中500牌的鋁礬土與苛性物反應。該 反應質量受控於微波作用25分鐘，於溫度306。(：下發生。氧化鋁對苛性鈉(如 NaKO3)的重量比維持在〇·7。消化效率可得為86.40%。 示例14 示例14如同示例丨來實行，其中該反應質量受控於微波作用5分鐘， 於溫度445°C下發生。氧化鋁對苛性鈉(如NaaCO3)的重量比維持在〇 7。消 化效率可得為87.50%。 、 示例15和16以鋁紅土來實行，其相較於鋁礬土具有較高的二氧化矽含量。 使用具有6-8 wt %二氧化石夕含量之40 gm的麵紅土確石。 示例15 示例15如同示例丨來實行，其中該反應質量受控於微波作用ι2分鐘， 於溫度285°C下發生。氧化鋁對苛性鈉(如Na2C〇3)的重量比維持在〇 7。消 化效率可得為69.88%。 示例16 15 200909355 示例16如同示例i來實行，其中該反應質量受控於微波在單一衝程中 作用8分鐘，於溫度3501下發生。氧化铭對苛性鈉(如⑽⑺3)的重量比維 持在0.7。消化效率可得為74.〇4〇/0。 如此表示即使具有高二氧化矽含量，礦石可與鹼一起受控於微波處理。 示例17 示例17如同示例1來實行，其中該反應質量藉由在溫度29〇_32〇乞之 下加熱苛性物(以固態形式)與礦石而獲得，以形成一中間產物如同示例i所 述。該中間產物受控於微波作用9分鐘，於溫度4〇〇。(：下發生。氧化銘對 苛性鈉(如NaaCO3)的重量比維持在〇 7。氧化鋁萃取的效率可得為95 12%。 當考慮的重點已在此處以最佳實施例的具體步驟說明，在不違反本發 明的原理下，於該最佳實施例中做許多的變動及修改。本發明於最佳實施 例以及其他實施例之這些及其他改變，與本發明之相關領域行業熟習技藝 之人士可對本案予以調動或修正，藉此其可被清楚地了解以上所述内容僅 為本發明之不例而非限制。 16 200909355 【圖式簡單說明】 X光繞射影像(XRD): XRD提供礦石中各種晶相的強度。y軸表示在X軸的特定角度上對於特定 晶相尖舉強度的線性計數。 第1圖係在礦石受控於微波輻射前，鋁礬土礦石的XRD影像；以及 第2圖係在受控於微波輻射後，鋁礬土的XRD影像。 【主要元件符號說明】 無 17(7) Microwave treatment of bauxite ore particles can break the structure of alumina hydrate from crystalline to amorphous, and since the efficiency of leaching amorphous alumina from bauxite ore is greater than its quality Increased efficiency of alumina extraction. ^aB also envisages the process of microwave treatment of minerals, such as the case of Mingxin soil described above, can also be punctured by other miscellaneous. The above treatment is also useful for other genus rich in soil towels such as tin dioxide, iron oxide and the like. There is no patent or literature age report on the disintegration and reactivity of smectites when oxyhydrogen and microwave scales are present. However, it has been reported that microwaves are used in metal ore towels for their ease of grinding/hammering. The present invention will be described with reference to the following description of the invention, and is merely illustrative of the invention. Example 1 - Determination of alumina and cerium oxide content of 40 gm bauxite ore. The ore contains 45.5% I oxidation minus 2.3% dioxide attack. The ore is dry ground to about 6 〇 holes. The ground ore is brought into a reaction tank and combined with a purity of 97% to form a reaction. The weight ratio of the oxygenate (e.g., Na2C〇3) is maintained at 〇 5. The mass of the reaction was controlled by an electromagnetic ray at a power of 9 〇〇 w and a frequency of 245 〇 MHz at a temperature of 289 ° C for a period of 9 minutes to form an intermediate containing sodium sulphate and sodium sulphate and other impurities. The intermediate product was then leached in a reaction tank to dissolve 145 gm of hot water as a filtrate from the intermediate product by dissolving soluble sodium aluminate and sodium citrate and other impurities, and the red mud was a residue. The insoluble red mud was cleaned with 1 Torr of hot water at 4 Torr. The obtained methacrylate solution was reacted at 20 (TC with 4 g of lime as additive (9) for 3 以 minutes to determine the oxidation of $. The weaving is then cooled to remove the secret of the financial (four). The salt-reducing solution is sent out as a fine oxidation by the conventional process. According to the oxygen content of the red mud, the efficiency of the oxidation of the extract 12 200909355 is 85.91%. 2 Example 2 was carried out as in Example 1, in which the quality of the reaction was controlled by microwave for 6 minutes and occurred at a temperature of 196 ° C. The weight ratio of oxidizing to caustic (such as Na; 2C 〇 3) was maintained at 〇50. The efficiency of alumina extraction was 87.67%. Example 3 Example 3 was carried out as in Example 1, where the mass of the reaction was controlled by microwave for 3 minutes at a temperature of 161 ° C. Alumina versus caustic soda (eg Na 2 C 〇 3) The weight ratio is maintained at 〇5 〇. The efficiency of oxy-aluminum extraction can be 82.40%. Example 4 Example 4 is carried out as in Example 1 where the quality of the reaction is controlled by microwave for 9 minutes at a temperature of 383°. Occurs under C. Oxidation of the caustic soda (such as he (7) 3) weight ratio is maintained at 〇7 The efficiency of vaporized aluminum extraction can be 80%.Example 5 Example 5 is carried out as in Example 1, where the quality of the reaction is controlled by microwave for 9 minutes, [occurs at a temperature of 332 C. Oxidation on caustic soda (eg The weight ratio of NafO3) is maintained at 〇85. The efficiency of alumina extraction can be 63 〇/〇. Microwave treatment is carried out in multiple stages. The red mud that has been microwave-reacted after leaching is re-distributed The caustic in the 14 stages was controlled by microwaves. Multiple stages were observed to improve the extraction efficiency in the process. Examples 6 to 10 were carried out in two stages. Example 6 13 200909355 Example 6 was carried out as in Example 1, where the reaction The mass is controlled by microwave for 18 minutes and occurs at a temperature of 700 ° C. The weight ratio of alumina to caustic soda (such as NafO 3 ) is maintained at 〇 51. The efficiency of alumina extraction can be 95.86%. Example 7 Example 7 Example 1 was carried out in which the quality of the reaction was controlled by microwave for 12 minutes and occurred at a temperature of 390 ° C. The weight ratio of alumina to caustic (such as NafCb) was maintained at 〇 51. The efficiency of alumina extraction was obtained as 90.72%. Example 8 Example 8 The same as Example 1, wherein the reaction quality is controlled by microwave for 6 minutes and occurs at a temperature of 343 ° C. The weight ratio of alumina to caustic soda (such as NafO 3 ) is maintained at 〇 51. The efficiency of alumina extraction is available. 86.50%. Example 9 Example 9 was carried out as in Example 1, wherein the quality of the reaction was controlled by microwave action for μ minutes and occurred at a temperature of 285 ° C. The weight ratio of alumina to caustic soda (such as NasCO 3 ) was maintained at 0 70 The efficiency of alumina extraction was 83.62%.Example 10 Example 10 was carried out as in Example 1, where the quality of the reaction was controlled by microwave for 18 minutes at a temperature of 390 °C. The weight ratio of oxidizing to caustic (such as Na2C〇3) is maintained at 0.85. The efficiency of the aluminum oxide extraction was 84.23%. Example 11 Example 11 was carried out as in Example 1, in which 100 gm of bauxite was used. The quality of the reaction was controlled by microwave for 9 minutes and occurred at a temperature of 192 °C. In this example, the process of controlling the quality of this reaction is carried out in three stages ' with the caustics dispensed in these stages. The weight ratio of oxidized I ly to caustic soda (e.g., Na2C 〇 3) is maintained at 0.85. The efficiency of alumina extraction can be as high as 85.24%. 14 200909355 Examples 12, 13 and 14 were carried out as in Example 1 in combination with other conventional techniques in which the mixture of microwave reactions was hydrothermally treated, wherein the separated red mud was heated to a temperature of 24 〇 c > c. It may be noted that in these examples, although the loading of bauxite is increased, the effect of digestion is improved. Example 12 Example 12 was carried out as in Example 1, in which 100 gm of bauxite was reacted with caustic. The quality of the reaction was controlled by microwave for 8 minutes' at temperature 39 (occurred at TC. Oxidation was on caustic soda (eg, the weight ratio of NaaCOO was maintained at 〇.7. The digestion efficiency was 86 47%. Example 13 Example 13 is like Example 1 was carried out in which 500 bauxite was reacted with caustic. The quality of the reaction was controlled by microwave for 25 minutes at a temperature of 306. (: occurs under the weight ratio of alumina to caustic soda (such as NaKO3). In 〇·7, the digestion efficiency can be 86.40%.Example 14 Example 14 is carried out as an example, wherein the quality of the reaction is controlled by microwave for 5 minutes and occurs at a temperature of 445 ° C. Alumina versus caustic soda (eg The weight ratio of NaaCO3) was maintained at 〇 7. The digestion efficiency was 87.50%. Examples 15 and 16 were carried out with aluminum laterite, which has a higher cerium oxide content than bauxite. The surface red earth of 40 gm of wt% dioxide has an amount of 40 gm. Example 15 Example 15 is carried out as an example, wherein the mass of the reaction is controlled by microwave for ι 2 min and occurs at a temperature of 285 ° C. Alumina is caustic The weight ratio of sodium (e.g., Na2C〇3) is maintained at 〇7. The digestion efficiency can be 69.88%.Example 16 15 200909355 Example 16 is carried out as in Example i, where the quality of the reaction is controlled by the microwave acting in a single stroke for 8 minutes at a temperature of 3501. Oxidation on caustic soda (eg (10)(7)3 The weight ratio is maintained at 0.7. The digestion efficiency can be 74. 〇 4 〇 / 0. This means that even with a high cerium oxide content, the ore can be controlled by microwave treatment together with the base. Example 17 Example 17 is implemented as Example 1. Wherein the quality of the reaction is obtained by heating caustic (in solid form) with ore at a temperature of 29 〇 32 Torr to form an intermediate product as described in Example i. The intermediate product is controlled by microwave action 9 Minutes, at a temperature of 4 〇〇. (: occurs. The weight ratio of oxidizing to caustic soda (such as NaaCO3) is maintained at 〇 7. The efficiency of alumina extraction can be 95 12%. The focus of consideration is here The specific steps of the preferred embodiment are described, and many variations and modifications may be made in the preferred embodiment without departing from the principles of the invention. Those skilled in the relevant art of the present invention may mobilize or revise the present invention, and it can be clearly understood that the above description is only an example and not a limitation of the present invention. 16 200909355 [Simple Description] X Light diffraction image (XRD): XRD provides the intensity of various crystal phases in the ore. The y-axis represents the linear count of the specific crystal phase lift strength at a specific angle of the X-axis. Figure 1 is based on the ore controlled by microwave radiation. Previous, XRD images of bauxite ore; and Fig. 2 are XRD images of bauxite after being controlled by microwave radiation. [Main component symbol description] None 17