WO2022021466A1 - A method for treating a laterite-nickel ore surface ore by means of a three-stage reduction method - Google Patents

Abstract

A method for treating a laterite-nickel ore surface ore by means of a three-stage reduction method, which belongs to the technical field of steel smelting, comprising the three steps of a fusing agent-free solid state reduction stage, a magma evolution reduction stage and a fractional reduction refining stage, wherein the method can finally produce a nickel chromium-containing base alloy steel or a low-nickel-iron and an aluminate cement clinker. By employing non-coke smelting, the high value recovery of alloying elements and resource utilization of waste Al 2O 3 in the laterite-nickel ore surface ore, which is difficult to treat using existing technology, are realized at a low cost, and the method has a high economic value.

Description

A method for treating surface ore of laterite nickel ore by three-stage reduction method technical field

The invention belongs to the technical field of iron and steel smelting, and in particular relates to a method for treating surface ore of laterite nickel ore by adopting a three-stage reduction method.

Background technique

According to estimates by geologists, the prospective reserves of laterite nickel ore on the earth are more than 500 billion tons, and the surface ore resources of laterite nickel ore account for about one-third of the laterite nickel ore resources. The surface ore of laterite nickel ore has the following advantages: ① It has high iron content. If the crystal water in the surface ore of laterite nickel ore is removed, the iron content ratio can be as high as 50 or more; ② It contains nickel-chromium alloy elements necessary for the production of high-quality alloy steel. The total amount of iron, chromium and nickel in the raw ore from which crystal water is removed by drying can be as high as more than 60%; ③ the content of lead, tin, arsenic, antimony and bismuth is low (below 200ppm, even below 100ppm), which meets the requirements of high-quality steel and high-end steel Production must be required; ④ The cost of mining is very low, and surface excavators are generally used for operation.

However, at present, the utilization of surface ore of laterite nickel ore is very low. Most of the laterite nickel ore mining mines only take deep ore, and the surface ore with low nickel content is regarded as waste soil. This is mainly due to the following technical problems in the current treatment of laterite nickel ore surface ore:

1) The existing dry smelting (such as RKEF) technology cannot be used for smelting

The content of Fe ₂ O ₃ in the surface ore of laterite nickel ore is relatively high. For the traditional dry smelting technology, the high iron content will cause the resistance of the molten ore to decrease once reduction occurs, the electrode arc starts, and the resistance of the submerged arc furnace is blocked. Hot smelting; and high oxygen content will cause violent foaming and unstable furnace conditions when the reaction temperature is reached, and normal smelting cannot be carried out.

2) The high coke ratio of small blast furnace makes the cost advantage of laterite nickel ore surface ore lost

Due to the low strength of the sintered ore in the surface layer of laterite nickel ore, it cannot withstand the pressure of the large blast furnace charge layer, so generally only small blast furnaces below 450m ³ can be used for production. Although the mining cost of the surface ore of laterite nickel ore is less than 20 yuan per ton, after small blast furnace smelting, the production of low nickel pig iron per ton generally consumes more than 700kg of coke, and its coke consumption is the same as that of ordinary ore smelting pig iron coke. (350-400kg) nearly twice. The smelting process with high coke ratio also leads to the high content of sulfur and phosphorus in the produced low-nickel iron, and the produced iron products are of lower quality.

3) The direct reduced iron produced by the surface layer of laterite nickel ore cannot remove Al ₂ O ₃ by magnetic separation

The iron product produced by the surface layer of laterite nickel ore by solid-state reduction contains more than 20% Al ₂ O ₃ gangue, and if a flux is added, the slag content can reach more than 40%. When the direct reduction method is used, the subsequent process cannot bear the amount of slag brought by the spongy direct reduced iron entering the furnace. At the same time, during solid-state reduction, the extremely fine Al ₂ O ₃ particles in the ore cannot be aggregated and cannot be removed by magnetic separation, which also leads to The high slag product produced therefrom, namely direct reduced iron, is of little use.

4) The amount added to the blast furnace is too small

A small amount of low-nickel surface ore with low sulfur and phosphorus content and high iron content is added to the blast furnace in a limited amount (5%) by a few steel mills to replace ordinary iron ore. Causes waste of alloying elements.

Therefore, to develop an efficient, low-cost, economical and environmentally friendly surface ore smelting method for laterite nickel ore that is suitable for industrial production, scientifically and rationally exert the value of laterite nickel ore surface ore, expand the source of resources for my country, improve the source of high-end varieties of raw materials, research and development It is of great significance to produce high-end high-quality steel with high content of high-value elements of nickel and chromium and low content of harmful metal impurities.

SUMMARY OF THE INVENTION

In view of the deficiencies in the prior art, the purpose of the present invention is to provide a three-stage reduction method for treating surface ore of laterite nickel ore, including three solid-state reduction sections without flux, magmatic reduction sections and melting reduction and refining sections step. By adopting non-coking smelting, the method realizes the high-value recovery of alloying elements in the surface layer ore of laterite nickel ore, which is difficult to handle by the existing technology, and the resource utilization of waste Al ₂ O ₃ at low cost, and has extremely high performance. Economic Value.

In order to achieve the above object, the present invention adopts the following technical solutions:

A method for treating surface layer ore of laterite nickel ore by a three-stage reduction method, comprising the following steps:

(1) solid-state reduction section without flux: the surface layer ore of laterite nickel ore and the reduced coal are pulverized and mixed, carbon reduction is carried out, and the raw material after carbon reduction is sent to the magmaization reactor;

(2) Magmatization reduction section: heating the charge entering the magma reaction kettle, remelting the charge, discharging gas, controlling and preventing Al ₂ O ₃ from precipitation and blocking the furnace mouth, and feeding the charge into the electric arc furnace in a magmatic state;

(3) smelting reduction and refining section: the magma melted charge enters the electric arc furnace, calcium/silicon oxide is added to make slag according to 50-80% of the weight of Al ₂ O ₃ in the charge, and a slag adjusting agent is added to adjust the slag to promote Al 2 O ₂ O ₃ is melted to form calcium aluminate/calcium aluminosilicate; reduction and refining are carried out according to the requirements of the final alloy steel product for the basic alloy steel, so that the content of sulfur and phosphorus meets the process requirements, and finally the basic alloy steel containing nickel and chromium or low Nickel-iron and aluminate/aluminosilicate cement clinker.

Further, the reaction temperature of the flux-free solid-state reduction section in the above step (1) is 1100-1200°C; when the process ends, the ratio of iron to total iron in the carbon-reduced raw material is more than 0.7.

Further, in the above-mentioned step (1), carbon reduction is carried out to the surface layer ore of laterite nickel ore by a rotary kiln or a shaft furnace; the rotary kiln has a kiln head section/discharge section that is debonded by resistance heating, and its reduction temperature can reach 1200 ℃, high calorific value bituminous coal is used for injection coal.

Further, in above-mentioned step ( ₁ ), according to laterite nickel ore surface layer ore, remove 30-35% supersaturated carbon of the dry ore weight after surface water and crystal water _; The iron ratio is 0.42, and the total iron content is calculated at 55-60%, preferably 60%.

Further, the reduced coal described in the above step (1) adopts anthracite with high fixed carbon and low ash content; laterite nickel ore surface layer ore and reduced coal are pulverized to a size of less than 10 mm; the pelletized Size is 30-50mm.

Further, in the above-mentioned step (1), the raw material after carbon reduction is in an incompletely reduced sponge state, and the specific gravity is 2-3.

Further, the reaction temperature of the magmatic reduction section in the above step (2) is 1200-1300°C; at the end of the reduction process, the ratio of iron to total iron in the charge is above 0.9.

Further, in the above step (2), the specific gravity of the charge is increased by the magma reaction, so that the specific gravity is greater than 6.

Specifically, in the above-mentioned step (2), according to the specific gravity of the returned material pile of 2-3t/m ³ , the thickness of the material layer is controlled within 1 meter, and the magma is sent into the electric arc furnace, and the speed of the auger to push the material is equal to the amount of the magma material. Speed, constant velocity push; magmaization time is half the processing time of electric arc furnace smelting.

Further, in the above-mentioned step (3), the slag tapping temperature in the melting reduction and refining section is greater than 1550°C, and the tapping/hot metal temperature is greater than 1500°C; when the process ends, the iron in the charge is reduced to more than 0.97.

Further, in the above step (3), the calcium/silicon oxide is preferably metallurgical lime for slagging, so as to achieve melting, desulfurization and dephosphorization; the slag adjusting agent is preferably CaF ₂ .

Further, the basic alloy steel composition described in the above-mentioned step (3) is as follows, wherein, the content of sulfur and phosphorus is strictly controlled according to the process requirements:

element C Ni Cr As+Sn+Pb+Sb+Bi S P content <2% 0.8-2.0% 1-4% <200ppm <0.04% <0.05%

It should be noted that the basic alloy steel described in the above step (3) is not a steel with certain properties, but a raw material for users to produce high-end nickel-chromium alloy steel and stainless steel; the basic alloy steel contains extremely valuable nickel Chromium and low-melting elements that are harmful to the quality of high-end steel include lead, tin, arsenic, antimony, and bismuth. Raw material requirements for steel, aircraft landing gear, high-end bearings, and high-end military steel.

It should be noted that the low-nickel iron in the above step (3) can be used as the raw material of low-end stainless steel or nickel-chromium alloy steel.

It should be noted that the aluminate cement clinker described in the above step (3) complies with the national aluminate cement standard GB/T 201-2015.

Another aspect of the present invention is to provide a magma reaction kettle device applied to the above method, which comprises a heating source, a reaction kettle cavity, a push auger and a discharge port; the push auger is used for step ( 1) The charge after the carbon reduction is sent into the reaction kettle cavity for magmaization; the reaction kettle cavity is inclined from the push auger end to the discharge port end; the discharge port is the same as that in step (3) The electric arc furnace is connected, and the magmaized charge enters the electric arc furnace through the discharge port.

Further, the heat supply heat source includes a coal-oxygen lance, an AC and DC heat source and other heat sources that meet the requirements.

Further, the magma reaction kettle device has a large reduction reaction surface area, which is conducive to gas release; has a certain inclination angle, which is conducive to the feeding of magma-state reducing materials into the electric arc furnace; has a large energy supply requirement, Adapt to the requirements of the final reduction speed of the electric arc furnace.

Further, the reduction temperature rise range of the magmatization reactor device is 1000-1300°C.

The invention can also be used for reducing non-magnetic iron ore or magnetic iron ore resources with iron content greater than 50% for iron production.

The design concept of the present invention is further elaborated below:

1) Flux-free solid-state reduction section

According to the analysis of the surface ore composition of laterite-nickel ore, more than 97% of the surface ore of laterite-nickel ore is composed of iron oxides and Al ₂ O ₃ . The phase diagram of Al ₂ O ₃ -Fe ₂ O ₃ shows that the lowest liquidus temperature (about 1600℃) of the two is on the iron oxide side, so the solid reduction method without flux is used in the rotary kiln or shaft furnace, and the charge is not easy to melt. , to avoid the occurrence of kiln wall or furnace wall adhesion problem, and high temperature reduction can be carried out. At the same time, the kiln head/discharge section of the rotary kiln is equipped with a resistance heating debonding device. If the discharge port or the kiln head is caking, the caking block can be quickly removed to ensure large-scale continuous production.

2) Magmatization reduction section

From the existing experience, even if the direct reduction iron produced by the rotary kiln is well reduced, it is not safe to directly add it to the electric furnace after the rotary kiln is discharged, mainly because: ① the proportion of direct reduced iron from the rotary kiln is about 2-3 , the charge with such specific gravity is added to the electric arc furnace, so that the furnace capacity must be doubled; ② the direct reduced iron from the rotary kiln produces many pores during the reduction process to form sponge iron, and the direct addition of the electric arc furnace will cause explosive boiling. Therefore, at this stage, the sponge-like charge is first remelted into a magmatic state at high temperature through the magmaization reactor, the reduction reaction is completed, the specific gravity of the charge is increased, and the gas is discharged, so as to avoid the occurrence of high oxygen content in the surface ore of laterite nickel ore in the electric furnace. Safety accidents such as violent foaming and unstable furnace conditions.

Therefore, this stage process is the pivot and key control link of the entire process flow, and has the following technical advantages and functions: ① Further reduction of the raw materials that are not completely reduced in the solid-state reduction section to avoid excessive oxides in the furnace due to under-reduction, thereby This leads to a violent carbon-oxygen reaction in the electric arc furnace of the subsequent melting reduction and refining section, resulting in a high-boiling production safety accident; ②Remove the gas in the reduced raw material, de-sponge, increase the proportion of the reduced raw material, and avoid the sponge in the reduced iron. The gas boils explosively at the high temperature of the electric arc furnace; ③Because the magma reaction kettle has the function of heat preservation, it can adjust the rhythm of the process flow, realize the operation buffer, and make the process rhythm smooth and smooth; ④The whole process is continuous in production, and the heat energy loss is small.

3) Melting reduction refining section

This stage is the product generation stage. The key is to control the carbon, sulfur and phosphorus of molten iron, to separate iron and Al ₂ O ₃ in the surface ore of laterite nickel ore, and to carry out reduction refining according to the requirements of the final alloy steel product for the basic alloy steel. It produces high-quality basic alloy steel and produces qualified calcium aluminate cement clinker. Among them, the control of carbon, phosphorus and sulfur belongs to the conventional process method of electric arc furnace, and there is no technical difficulty. The arc temperature of the electric arc furnace is as high as 6000 ℃, which can quickly melt the magmaized charge. During most of the time when the charge is melted, the high temperature heat source is surrounded by the charge. The oxygen in the unreduced iron oxides in the magma of the reduced ore reacts with the added carbon and interacts with the slag, which can make the slag foam, surround the arc, reduce heat loss, and the heat loss is relatively small. In addition, electric heating can easily and accurately control the furnace temperature, and the operation can be switched between the oxidizing atmosphere or the reducing atmosphere according to the process requirements; it can also freely slag, desulfurize and dephosphorize molten steel/hot metal; it can also be decarburized by oxygen blowing, etc.

The standard basis of the electric arc furnace slag produced at this stage: ① The People's Republic of China Standard for Aluminate Cement GB/T 201-2015; ② Al ₂ O ₃ -CaO-SiO ₂ ternary phase diagram, according to which you can find the following Al ₂ O ₃ is mainly composed of CaO and contains a small amount of SiO ₂ ternary slag-based low-temperature components, which not only meet the refining requirements of smelting basic alloy steel, but also meet the slag-based components of aluminate cement.

The technical advantages and positive effects of the present invention include at least:

The invention converts the characteristics of laterite-nickel ore surface ore difficulty smelting into technical advantages, and at the same time the main product is nickel-chromium-containing basic alloy steel, the refractory Al ₂ O ₃ is directly formulated into aluminate cement clinker, which is not only High-end steel and high-quality steel provide nickel-chromium basic alloy steel with extremely low content of important harmful metal elements, so as to obtain higher profits of intermediate products, and at the same time produce high-quality and high-value-added high-alumina cement clinker, which realizes the The recycling of waste has greatly increased the added value of the process and the environmental protection significance of the smelting process.

The cost of high-quality nickel-chromium basic alloy steel produced by the invention (excluding the value of aluminate cement clinker) is more than RMB 500 lower than that of low-nickel pig iron produced by blast furnace coke method, and it is used as the basis for high-end nickel-chromium alloy steel and stainless steel. raw materials, and can obtain higher by-product profits. Specific to the production process, the reduction process of the surface layer ore of the laterite nickel ore of the present invention is a non-coke reduction process, which avoids the high coke ratio problem of the current small blast furnace smelting process, does not have to worry about the shortage of coking coal resources and the increase in coke prices, and avoids self-construction. A series of environmental problems brought about by coking plants.

All in all, judging from the existing research results, the low-nickel stainless steel and nickel-containing alloy steel developed by using laterite-nickel surface ore have excellent performance, filling many technical gaps in this field. The applicant of the present invention has led and participated in the development of dozens of nickel-containing alloy steels, such as: sorbite high-strength stainless structural steel (patent application number 201610504342.6), electrical steel (patent application number: 201710408062.X), petroleum Steel, etc., the quality of which is better than that of special steel smelted from general raw materials. The applicant of the present invention has made achievements in the development of some important high-end steel and high-quality steel by using the surface layer of laterite nickel ore, and proposed the development concept of "natural alloy ore; basic alloy steel; target alloying". It is of great significance to re-understand the resource value and target use direction of laterite nickel ore surface ore, and it can also provide my country with an important source of high-quality raw materials.

Description of drawings

Fig. 1 is the process flow schematic diagram of the surface layer ore of laterite nickel ore according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of the arrangement of a magmatization reactor according to an embodiment of the present invention.

detailed description

The present invention will be further described below with reference to specific embodiments.

Embodiment 1 Smelting of Philippine laterite nickel ore surface ore

According to the schematic diagram of the process flow shown in accompanying drawing 1, the surface layer ore of the Philippine laterite nickel ore is smelted, and its composition is as shown in Table 1, wherein the crystal water is not removed, and the elements cobalt, lead, tin, arsenic, antimony and bismuth are not counted; The composition of the reducing coal and the injection coal used in the solid-state reduction section without flux is shown in Table 2.

Table 1 Composition of surface ore of laterite nickel ore in the Philippines

element Fe Ni Cr ₂ O _{3 SiO2} Al ₂ O ₃ MnO P S moisture Content (wt%) 49.00 0.71 3.16 2.19 7.39 0.78 0.004 0.20 31.50

Table 2 Composition of reduced coal and injection coal

1) Flux-free solid-state reduction section

Dry the surface layer ore and reduced coal of laterite nickel ore, measure the amount of crystallization water at 8%, add 0.30 tons of reduced coal per ton of dry surface layer ore of laterite nickel ore, pulverize and stir well; add binder to press balls, the diameter of the balls is 30-40mm; send the mixed raw material into the rotary kiln, ignite the spray gun; introduce the reaction preheating; the temperature of leaving the kiln is 1200 ℃, check the metallization rate, the amount of oxygen removed per ton of dry ore is about 250kg, and the ash content is about 30kg; Then transfer to the magma furnace.

2) Magmatization reduction section

After feeding a certain amount of primary reduction raw materials, the coal oxygen lance is ignited, and the primary reduction balls are heated to make them magma, and the feeding speed is 2 tons per minute; , automatically flow into the special feeding port of the electric arc furnace; after the magmaization furnace, the reduction reaction of metal oxides is basically completed; the magmaization reactor can be arranged according to Figure 2.

3) Melting reduction refining section

When the rock slurry is added to the electric arc furnace, lime with an Al ₂ O ₃ content of 50-70% contained in the dry ore before reduction is added; half an hour later, the amount of rock slurry added to the electric arc furnace reaches about 60 tons, which can produce 50 tons of basic alloy steel; Add rock slurry and lime, and send electricity by the electric arc furnace to form continuous feeding and continuous melting; after melting, check the sulfur content in the steel immediately. The formed slag is desulfurized. After the desulfurization is completed, the slag is tapped first, and a thin slag layer of about 100mm can be tapped.

The main product components after the smelting in this example is shown in Table 3.

Table 3 Composition of main products produced after smelting

element C Ni Cr As+Sn+Pb+Sb+Bi S P Content (wt%) 0.2 1.5 2.2 <0.012 not analyzed 0.02 0.007

Example 2 Indonesian laterite nickel ore surface ore smelting basic alloy steel

The composition of the surface ore of the Indonesian laterite nickel ore treated in this example is shown in Table 4.

Table 4 Composition of surface ore of laterite nickel ore in Indonesia

component Fe Co Ni Al ₂ O ₃ Cr ₂ O ₃ CaO MgO _SiO2 Mn P S Content (wt%) 48.50 0.022 0.66 7.98 3.36 0.017 0.22 1.24 0.21 0.055 0.18

The process flow operation of the flux-free solid-state reduction section and the magmatic reduction section is the same as that of Example 1. The difference is that the slag is discharged from the slag, and the dephosphorization agent is added. 30kg of agent, so that the phosphorus in the steel reaches below 0.03-0.05%.

The components of the main products after the smelting of this example is completed are shown in Table 5.

Table 5 Composition of main products produced after smelting

element C Ni Cr As+Sn+Pb+Sb+Bi S P Content (wt%) 0.2 1.2 2.5 <0.012 not analyzed 0.02 0.04

The above descriptions are merely examples of the present application, and are not intended to limit the present application. Various modifications and variations of this application are possible for those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.

Claims (10)

A method for treating the surface layer ore of laterite nickel ore by a three-stage reduction method is characterized in that, comprising the following steps: (1) solid-state reduction section without flux: the surface layer ore of laterite nickel ore and the reduced coal are pulverized and mixed, carbon reduction is carried out, and the raw material after carbon reduction is sent to the magmaization reactor; (2) Magmatization reduction section: heating the charge entering the magma reaction kettle, remelting the charge, discharging gas, controlling and preventing Al ₂ O ₃ from precipitation and blocking the furnace mouth, and feeding the charge into the electric arc furnace in a magmatic state; (3) smelting reduction and refining section: the magma melted charge enters the electric arc furnace, calcium/silicon oxide is added to make slag according to 50-80% of the weight of Al ₂ O ₃ in the charge, and a slag adjusting agent is added to adjust the slag to promote Al 2 O ₂ O ₃ is melted to form calcium aluminate/calcium aluminosilicate; reduction and refining are carried out according to the requirements of the final alloy steel product for the basic alloy steel, so that the content of sulfur and phosphorus meets the process requirements, and finally the basic alloy steel containing nickel and chromium or low Nickel-iron and aluminate/aluminosilicate cement clinker. The method for treating the surface layer ore of laterite nickel ore by three-stage reduction method according to claim 1, wherein the reaction temperature of the solid-state reduction section without flux in step (1) is 1100-1200 °C; At the end of the reduction section, the ratio of iron to total iron in the charge is above 0.7, and it is in an incompletely reduced sponge state with a specific gravity of 2-3. The method for treating the surface layer ore of laterite nickel ore by three-stage reduction method as claimed in claim 1, wherein in step (1), carbon reduction is carried out on the surface layer ore of laterite nickel ore by a rotary kiln or a shaft furnace; There is resistance heating in the kiln head section/discharge section for removing adhesion, and the coal for injection adopts bituminous coal with high calorific value. The method for treating the surface layer ore of laterite nickel ore by three-stage reduction method as claimed in claim 1, it is characterized in that, in step (1), remove 30-35% of the dry ore weight after surface layer water and crystal water according to the surface layer ore of laterite nickel ore. % supersaturated carbon; the total iron content of the dry ore is calculated according to 55-60%. The method for treating the surface layer ore of laterite-nickel ore by three-stage reduction method as claimed in claim 1, wherein the reduction coal in step (1) adopts anthracite with high fixed carbon and low ash content; The raw coal is pulverized to a size of less than 10mm; the pellets are formed by bonding with a pellet binder, and the pellet size is 30-50mm. The method for treating surface ore of laterite nickel ore by three-stage reduction method according to claim 1, wherein the reaction temperature of the magmatic reduction section in step (2) is 1200-1300°C; At the end, the ratio of iron to total iron in the charge is more than 0.9, and the specific gravity is greater than 6. The method for treating the surface layer ore of laterite nickel ore by three-stage reduction method as claimed in claim 1, characterized in that, in step (2), according to the specific gravity of 2-3t/m ³ of the reduced material pile, the magma is sent into the electric arc furnace, The speed of the auger to push the material is equal to the speed of the magma material, and it is pushed at a constant speed. The method for treating surface layer ore of laterite nickel ore by three-stage reduction method as claimed in claim 1, characterized in that, in step (3), the slag tapping temperature in the melting reduction and refining section is greater than 1550°C, and the tapping/hot metal temperature is greater than 1550° C. 1500°C; at the end of the melting reduction refining section, the iron in the charge is reduced to more than 0.97. The three-stage reduction method as claimed in claim 1 is characterized in that, the basic alloy steel composition described in step (3) is as follows, wherein, sulfur and phosphorus content are strictly controlled according to process requirements: element C Ni Cr As+Sn+Pb+Sb+Bi S P content <2% 0.8-2.0% 1-4% <200ppm <0.04% <0.05% . A magma reaction kettle device applied to any one of the methods of claims 1-9, comprising a heating source, a reactor cavity, a push auger and a discharge port, wherein the push auger is used for The charge after carbon reduction in step (1) is sent into the reaction kettle cavity for magmaization; the heat supply heat source includes coal oxygen lances, AC and DC heat sources and other heat sources that meet the requirements; the reaction kettle cavity is pushed from the push The end of the auger is inclined to the end of the discharge port; the discharge port is connected to the electric arc furnace in step (3), and the magmaized charge enters the electric arc furnace through the discharge port; the reduction temperature rise range of the magmaization reactor device is: 1000-1300℃.

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