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Fine-grain artificial rutile granulation binder and its application method

An artificial rutile, fine-grained technology, applied in the field of chemical engineering, can solve the problems that fine-grained artificial rutile cannot be used directly, lack of binders, etc. Effect

Active Publication Date: 2017-05-31
PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved in the present invention is that fine-grained artificial rutile cannot be directly used in the existing boiling chlorination process, and there is a lack of suitable binder for artificial rutile granulation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The artificial rutile with a particle size of less than 160 meshes was prepared by choosing Panzhihua Titanium Refining, and its particle size distribution is shown in Table 1.

[0036] Table 1 The particle size distribution of fine-grained artificial rutile

[0037] Particle size distribution / mesh +160 160～200 200～320 -320 Fine-grained artificial rutile / % 8.1 37.2 42.4 12.3

[0038] Weigh 15kg of the above fine-grained artificial rutile, and weigh 0.40kg of heavy oil at the same time, use mechanical stirring for 5-8 minutes, and mix evenly.

[0039] Weigh 0.15kg of dextrin and 0.08kg of cellulose sodium into the mixture, fully stir and mix evenly.

[0040] Add the above-mentioned uniformly mixed materials into the disc granulator, start the disc granulator, open the nozzle, and start granulation. Stop spraying water when the powder starts to granulate, and add a Φ1mm screen at the discharge port, and the particles larger than this size will ...

Embodiment 2

[0043] Weigh 15 kg of fine-grained artificial rutile used in Example 1, and weigh 0.30 kg of heavy oil at the same time, and use mechanical stirring for 5 to 8 minutes to mix evenly.

[0044]Weigh 0.13kg of dextrin and 0.07kg of cellulose sodium into the mixture, fully stir and mix evenly.

[0045] Add the above-mentioned uniformly mixed materials into the disc granulator, start the disc granulator, open the nozzle, and start granulation. Stop spraying water when the powder starts to granulate, and add a Φ1mm screen at the discharge port, and the particles larger than this size will be broken and returned to the disc feeder. The prepared rutile particles were dried at 120°C, and calcined at 600°C for 30 minutes under reducing tail gas produced by incomplete combustion of coke oven gas to obtain coarse-grained artificial rutile suitable for boiling chlorination.

[0046] The coarse-grained artificial rutile prepared in this example keeps its particle shape intact after being d...

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PUM

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Abstract

The invention belongs to the field of chemical engineering, and particularly relates to a fine-fraction artificial rutile granulation binding agent and a use method thereof. The invention aims to solve the technical problem that the fine-fraction artificial rutile can not be directly used for a traditional fluidizing chlorination technology, and the binding agent suitable for fine-fraction artificial rutile granulation is in shortage. The invention provides the fine-fraction artificial rutile granulation binding agent for solving the above technical problems. The fine-fraction artificial rutile granulation binding agent comprises the following composition ingredients: 60-70% of heavy oil, 5-15% of croscarmellose sodium and 20-30% of dextrin. The invention also provides the use method of the fine-fraction artificial rutile granulation binding agent. According to the fine-fraction artificial rutile granulation binding agent and the use method of the fine-fraction artificial rutile granulation binding agent, a high additional value use level of the Panzhihua titanium concentrate is greatly improved, a comprehensive use level of upgraded titanium slags, natural rutile and high titanium slags can be greatly improved, and higher benefit can be created.

Description

technical field [0001] The invention belongs to the field of chemical engineering, and in particular relates to a fine-grain artificial rutile granulation binder and a use method thereof. Background technique [0002] The production process of titanium dioxide by chloride method has the characteristics of short process, large production capacity, high-grade products, and low environmental pollution. It is a titanium dioxide production technology encouraged by the state. However, the chlorination method of titanium dioxide has high requirements on raw materials, usually requiring TiO 2 ≥90%, the particle size of 0.1mm~0.25mm accounts for more than 90%. With the improvement of people's awareness of environmental protection, the production capacity of chloride titanium dioxide will continue to expand, and the demand for high-quality titanium raw materials will increase. [0003] The Panxi area is rich in titanium resource reserves, and the currently proven ones account for mo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G23/047B01J2/00
Inventor 叶恩东缪辉俊程晓哲吴轩张溅波张兴勇
Owner PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP