341results about "Titanium tetrachloride" patented technology

There are provided processes for treating red mud. For example, the processes can comprise leaching red mud with HCl so as to obtain a leachate comprising ions of a first metal (for example aluminum) and a solid, and separating said solid from said leachate. Several other metals can be extracted from the leachate (Fe, Ni, Co, Mg, rare earth elements, rare metals, etc.). Various other components can be extracted from solid such as TiO₂, SiO₂ etc.

Porous plate 13 is disposed between wind box 11 of dispersion board B and cylindrical vessel wall 12. Filling layer 14 of a structure packed with ceramic particles such as those of fused silica is disposed on the porous plate 13 so as to fill the inside of the cylindrical vessel wall. The filling layer 14 is composed of ceramic particles, so that the corrosion wear by chlorine gas can be inhibited and the durability thereof enhanced. Furthermore, a chlorine resistant member is disposed in a form so as to adhere to the internal surface of the cylindrical vessel wall 12, so that the corrosion wear by chlorine gas of the cylindrical vessel wall 12 can also be effectively inhibited. As a result, damage to the internal wall of the chlorination furnace can be minimized, and the state of allowing chlorine gas to be uniformly dispersed and supplied to fluidized bed 4 containing titanium ore and coke can be maintained for prolonged periods.

The invention discloses a resourceful treatment method for fused salt chlorination residues. According to the method, high-oxidizability alkaline waste salt water generated through fused salt chlorination tail gas purification or chloro-alkali chemical industry tail gas absorption waste liquor is used for treating leachate of the fused salt chlorination residues so as to recover NaCl, magnesium chloride hexahydrate and ferro-manganese residues, and low-cost resourceful treatment for the fused salt chlorination residues is achieved. Waste is treated with waste, the pollution problem of the fused salt chlorination residues is solved, NaCl, MgCl2 and ferro-manganese raw materials in the fused salt residues are recovered and used, and the resourceful treatment method has good economic benefits, has great significance in eliminating development bottleneck of technology application of preparing TiCl4 through titanium residue fused salt chlorination, can be widely applied to domestic and overseas fused salt chlorination-magnesium thermal electrolysis titanium sponge and fused salt chlorination titanium sponge enterprises and has wide popularization prospects.

The invention belongs to the field of chemical production, and particularly relates to a method for producing TiCl4 by using low-TiO2-grade titanium slag, solving the technical problems long production of time and high cost. The method for producing TiCl4 by using low-TiO2-grade titanium slag provided by the invention in order to solve the technical problems comprises the following steps: a. adding titanium slag, petroleum coke and sodium chloride to a molten salt chlorinating furnace to react with chlorine at a temperature of 700 to 750 DEG C; and b. conveying a gaseous mixture obtained by reaction from the chlorinating furnace to a dust collection and condensation equipment system, and condensing gaseous TiCl4 into a crude product after removing high-boiling-point impurities. By using the method provided by the invention reduction of the production cost of the TiCl4 crude product is facilitated, the comprehensive utilization level of titanium resources in Panzhihua is improved, and a new development direction for the development of titanium industry of Panzhihua is brought.

The disclosure is directed to a process for isolating solids from a purification purge stream comprising an impurity present as a solid, wherein the purification purge stream is substantially free of chlorides other than titanium tetrachloride and vanadium chloride, the process comprising the steps of: (a) atomizing the purification purge stream comprising titanium tetrachloride as a liquid and an impurity present as a solid; (b) drying solids in the atomized purification purge stream by contacting the atomized stream with a titanium tetrachloride vapor stream such that the combined streams reach a temperature of at least about 140° C. to vaporize the liquid titanium tetrachloride, wherein the titanium tetrachloride vapor is substantially free of chlorides other than those of titanium and vanadium, and substantially free of non-condensable gases comprising CO, CO₂, N₂, or mixtures thereof; and (c) separating the impurity present as a solid from the vaporized titanium tetrachloride. The separated vanadium solids may be further processed to recover valuable by products.

The invention relates to the field of fluidized chlorination furnaces and discloses a fluidized chlorination furnace. The fluidized chlorination furnace includes a furnace body (1) having an inner chamber, a material feeding inlet, an air inlet, an air outlet and a slag discharge outlet. The inner chamber is respectively connected to the material feeding inlet, the air inlet, the air outlet and the slag discharge outlet. The furnace body (1) includes a reaction part furnace body (2), of which at least one part of the furnace wall is transparent. When a thermal-state test is carried out by the fluidized chlorination furnace, researches can observe reaction situation inside the fluidized chlorination furnace through the transparent part of the furnace wall during the thermal-state test, thereby researching chlorination characters and fluidization state of materials in the fluidized chlorination furnace.

The invention belongs to the field of titanium tetrachloride refining and in particular relates to a method of refining titanium tetrachloride to remove vanadium by employing drainage oil. In order to solve the problems that an existing remove-removal reagent for titanium tetrachloride is high in cost and the like as the drainage oil is great in output and low in cost and is not efficiently utilized, the invention provides the method of refining titanium tetrachloride to remove vanadium by employing drainage oil. The method comprises the following steps of: stirring and mixing the drainage oil and oleic acid in a pre-heating kettle; preheating the mixture to 136-140 DEG C; adding the preheated mixture into a remove-removal rectifying tower; introducing coarse titanium tetrachloride gas; and collecting the refined titanium tetrachloride without vanadium in a remove-removal rectifying tower condenser. By reasonably matching the drainage oil and the oleic acid, the method of refining titanium tetrachloride to remove vanadium not only provides a novel utilization path for cheap drainage oil, but also saves the cost of refining titanium tetrachloride to remove vanadium. The method provided by the invention is simple to operate and low in cost and has an important economical benefit.

The invention provides a method for producing titanium tetrachloride by using a low grade titanium material, and belongs to the chemical field. The technical problem to be solved is to provide a method for producing titanium tetrachloride by using a low grade titanium material capable of continuous industrialized production. The method is characterized in that the low grade titanium material containing a certain proportion of titanium carbide is caused to directly react with chlorine at 600-700° to produce the titanium tetrachloride. Long-time continuous and stable operation can be realized by using the process parameters of the method, and chlorination rate of the titanium carbide in the titanium material reaches above 90%, so that the titanium material can be better used for producing the titanium tetrachloride.

The invention relates to an organic matter vanadium removal mud solid-liquid separation device and a method for carrying out organic matter vanadium removal mud solid-liquid separation by adopting the device and belong to the field of mixed metallurgy. The method comprises the following steps: inputting organic matter vanadium removal mud into a drying oven through a mud inlet, enabling the organic matter vanadium removal mud to flow through a filtering element in a filter unit, and realizing separation of organic matter vanadium removal residue and titanium tetrachloride in the mud; after filtration, introducing heated inert gas, so that titanium tetrachloride in a filter cake on the filter unit is evaporated, the evaporated titanium tetrachloride gas is recycled by a condenser connected with a condenser connector, so that titanium tetrachloride is obtained; and finally blowing out the dried organic matter vanadium removal residue from a hot gas outlet by virtue of atmospheric flow, and collecting. The device and method which are provided by the invention have the advantages that solid-liquid separation efficiency is more than 99%, and recovery ratio of TiCl4 in the mud is more than 98%; and no chlorinated tailing is doped, so that the separated organic matter vanadium removal residue also can be used for vanadium extraction production, and recycling is realized.

The invention discloses a method for discoloring in a process of refining coarse titanium tetrachloride from organic substances. The method comprises the following steps: sufficiently mixing the organic substances which account for 0.12%-0.35% of the weight of coarse titanium tetrachloride with coarse titanium tetrachloride to obtain a mixture; adding the mixture into a primary packing tower to remove vanadium, enabling vanadium-removed qualified titanium tetrachloride to pass through a float valve tower to remove low-boiling-point substances, enabling titanium tetrachloride with qualified low-boiling-point substances to pass through a secondary packing tower to remove high-boiling-point substances, and discoloring. The method is characterized by comprising the following steps: completely collecting and storing unqualified vanadium-removed tetrachloride in the primary packing tower, not returning unqualified vanadium-removed tetrachloride to the primary packing tower for being subjected to secondary vanadium removal, and adding the collected and stored unqualified vanadium material which accounts for 10-25% of the weight of the qualified vanadium material as well as the qualified vanadium material into the float valve tower and a secondary packing tower, thereby obtaining a qualified fine titanium tetrachloride product. The method disclosed by the invention has the characteristics of simple process, less equipment addition and modification, less investment, good effects of discoloring and removing organic substances in titanium tetrachloride, high production efficiency, energy conservation, consumption reduction and the like.

The invention discloses a TiCl4 preparation process. The process comprises the following steps: mixing vanadic titanomagnetite, a binder and water according to a mass ratio of 100:(1-2.5):(6-9) to obtain raw balls, and carrying out drying, preheating and roasting on the raw balls to obtain oxidized pellets; sending the oxidized pellets into gas-based reduction equipment for direct reduction to prepare vanadium-titanium metallized pellets; sending the vanadium-titanium metallized pellets into a melting furnace for melting, and carrying out slag-iron separation to obtain titanium-containing slag; crushing the titanium-containing slag, carrying out grinding to obtain the titanium slag, adding the titanium slag and a carbon raw material into a chlorination reaction furnace containing a moltensalt with a semi-molten state according to the mass ratio of 100:(11-15), introducing chlorine gas into the chlorination reaction furnace after the molten salt is completely melted, and carrying out chlorination reaction to obtain gaseous TiCl4; condensing the gaseous TiCl4 by a condensing device to obtain crude TiCl4; and carrying out refining process on the crude TiCl4 to obtain refined TiCl4. The method can be used to effectively recover titanium resources, improve the recovery rate of the titanium resources, reduce energy consumption and reduce environmental pollution.

This disclosure relates to an improved process for preparing titanium tetrachloride comprising a first carbo-chlorination reaction comprising reacting ores comprising silica and/or zirconium with chlorine and a carbon compound at a temperature of about 900° C. to about 1300° C. to form an unscrubbed off gas comprising carbon monoxide, and using the unscrubbed off gas in a second carbo-chlorination reaction comprising titanium to form titanium tetrachloride.

The invention discloses a production method of titanium carbide slag for preparing titanium tetrachloride, and belongs to the field of metallurgy. The technical problem to be solved by the invention is to provide the production method of the titanium carbide slag for preparing the titanium tetrachloride by using a low-temperature chlorination process. The production method of the titanium carbideslag for preparing the titanium tetrachloride comprises the following steps: titanium-contained furnace slag is hot filled in an electric furnace in a molten state for heating to 1200-1500 DEG C; a carbon reducing agent is added for continuous heating to a temperature of not lower than 1500 DEG C; when the titanium dioxide conversion rate is not lower than 85%, and the content of titanium carbidein the furnace slag is 9-19%, a slag outlet of the electric furnace is opened; high-pressure water currents are used for water quenching of liquid-state slag in the slag outlet to obtain granular slag; and the granular slag is dehydrated, dried and crushed to obtain the titanium carbide slag. The titanium-contained furnace slag with high calcium and magnesium contents is used as raw materials forpreparing the titanium carbide slag; and titanium resources and calcium resources in the furnace slag are effectively used for realizing the resourceful utilization of the whole titanium-contained furnace slag.

The invention discloses a large-capacity molten salt chlorinating device for treating high-calcium magnesium titanium slag and a production method in the technical field of metal smelting. The large-capacity molten salt chlorinating device comprises a furnace body, a gas spraying pipe arranged at the bottom of the furnace body, a graphite electrode and a waste salt discharging chute which are arranged on the side surface of the furnace body, and a smoke gas outlet formed in the top of the furnace body, wherein a furnace top bin stretching into the furnace body is arranged on the top of the furnace body; screw feeders are arranged at outlets in the bottom of the furnace top bin; and the screw feeders are rotatably connected with the furnace top bin. Through reasonable design of the furnacebody, the diameter of the furnace body is increased; and through arrangement of the furnace top bin and the screw feeders on the top of the furnace, the distribution uniformity of a gas material and asolid material in the furnace is improved, the chlorination reaction efficiency of the high-calcium magnesium titanium slag is improved, and thus the single furnace capacity is improved.

The invention discloses a method for preparing titanium dioxide by using high-titanium-type blast furnace slag, and belongs to the technical field of the steel smelting. In order to adequately recycletitanium on the high-titanium-type blast furnace slag, and avoid resource waste, the provided method for preparing the titanium dioxide by using the high-titanium-type blast furnace slag comprises the following steps: performing high-temperature carbonization treatment on the high-titanium-type blast furnace slag, crushing, to obtain carbonized slag; performing a low-temperature chlorination reaction on the carbonized slag and a chlorine gas, to obtain a chlorination reaction mixture containing a TiCl4 gas, after condensing, to obtain crude TiCl4; performing vanadium removing treatment on thecrude TiCl4 by using fatty acid, rectifying, to obtain fine TiCl4; and performing an oxidization reaction on the fine TiCl4 and O2, to obtain an oxidization reaction mixing product containing TiO2 and Cl2, cooling, filtering, to obtain TiO2 and the chlorine gas. The method is capable of adequately recycling the titanium in the high-titanium-type blast furnace slag, and avoiding the resource waste, low in process cost, and good in product quality.

The present invention is a process for reducing raw material yield losses resulting from the passivation aluminum chloride and vanadium chlorides in the chlorinator discharge in a carbochlorination process for making titanium tetrachloride.

The invention discloses a treatment system and a treatment method for high-temperature titanium tetrachloride dusty gases, the system comprises a chlorination furnace, a rotary kiln, a cooling kiln, an elution tower, an elution tower collection tank, a centrifugal machine, a coarse titanium tetrachloride preheater, an elution tower II, a circulating tower heat exchanger I, a circulating tower heatexchanger II, a coolant heat exchanger and a coarse titanium tetrachloride middle tank, the treatment method includes the steps of wet slag baking, condensing and pulping, solid-liquid separation, feedstock heat exchange, primary cooling and secondary cooling, the treatment system and the treatment method have the advantages that existing chilling and gas-solid separation steps are omitted, the wet chlorinated-slag baking step, the condensing and pulping step and the solid-liquid separation step are provided, and accordingly, the recovery rate of titanium tetrachloride is increased by about 1%; in the feedstock heat exchange step, less steam can be used for heating coarse titanium tetrachloride with the temperature of 110-119 DEG C to a set temperature before refining, and accordingly, obvious economic effects are achieved.