Unlock instant, AI-driven research and patent intelligence for your innovation.

Comprehensive utilization production method of artificial rutile production waste liquid by hydrochloric acid method

A technology of artificial rutile and production method, which is applied in the direction of application, fertilizer mixture, iron oxide, etc., can solve the problem of artificial rutile cost bottleneck, affecting iron oxide content, iron oxide impurities, etc., to increase resource utilization , low energy consumption and high purity

Active Publication Date: 2016-04-13
龚家竹
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

my country's steel mill pickling waste liquid almost also adopts such an imported incineration pyrolysis device technology, but the energy consumption of incineration and pyrolysis is high. If the titanium concentrate is leached by the hydrochloric acid method, the energy consumption of pyrolysis accounts for 60% of the energy consumption of the entire process. More than %, the hydrochloric acid production cost of pyrolysis is high, especially in my country because of chlorinated alkanes, sulfur-based nitrogen, phosphorus and potassium fertilizer by-product hydrochloric acid surplus, not only cheap, but also has no market outlet; Maximum Cost Bottleneck
Furthermore, as my country’s Panxi Titanium Mine (see Table 1), due to the high content of magnesium oxide, which accounts for about 15% of the iron content in the ore raw materials, the iron oxides recovered by incineration and pyrolysis have many impurities, especially magnesium elements, which have not been utilized. up, and affect the content of iron oxides

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Comprehensive utilization production method of artificial rutile production waste liquid by hydrochloric acid method
  • Comprehensive utilization production method of artificial rutile production waste liquid by hydrochloric acid method
  • Comprehensive utilization production method of artificial rutile production waste liquid by hydrochloric acid method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The leaching waste liquid that produces artificial rutile by table 1 titanium concentrate raw material sees composition table 2, sends in the ammoniation neutralization reactor 1 with 7500 kilograms of leaching liquids per hour, feeds 796 kilograms of ammonia simultaneously, maintains PH as 6.5, after aging in the aging tank 2, the aged material is sent to the filter press 3 for solid phase separation, and washed with water to obtain 3000 kg of wet filter cake, which is sent to the calciner 4 for dehydration and calcination to obtain 1400 kilograms of primary iron-based pigments, after the filtration washing liquid merges, obtain 8350 kilograms of ammonium magnesium chloride solution (30%NH 4 Cl, 6.4% MgCl 2 ), this magnesium ammonium chloride solution solution is delivered to by the first heater 9, the second heater 6, the first flash chamber 8, the second flash chamber 5, the first circulation pump 10, the second circulation pump 7 , and the concentration system that...

Embodiment 2

[0037] According to table 3 titanium slag composition hydrochloric acid method produces the waste liquid composition of artificial rutile production and sees table 4, sends in the ammonification neutralization reactor 1 with per hour 15000 kilograms of leaching solution leaching solution, feeds 1220 kilograms of ammonia simultaneously, maintains PH is 6.0, after being aged in the aging tank 2, the reaction material is sent to the filter press 3 for solid phase separation, and washed with water to obtain 2100 kg of wet filter cake, which is sent to the calcination kiln 4 for dehydration and calcination Obtain 940 kilograms of primary iron-based pigments, and obtain 8184 kilograms of ammonium magnesium chloride solution (32%NH 4 Cl, 8.9% MgCl 2 ), this magnesium ammonium chloride solution solution is delivered to by the first heater 9, the second heater 6, the first flash chamber 8, the second flash chamber 5, the first circulation pump 10, the second circulation pump 7 , and t...

Embodiment 3

[0043] According to Table 5, the composition of the waste liquid produced by the titanium concentrate raw material hydrochloric acid method is shown in Table 6. 10,000 kg of leaching liquid per hour is sent to the ammoniation neutralization reactor 1, and 1102 kg of ammonia is fed into it at the same time to maintain a pH of 6.5. , after aging in the aging tank 2, the reaction materials are sent to the filter press 3 for solid phase separation, and washed with water to obtain 2638 kg of wet filter cake, which is sent to the calciner 4 for dehydration and calcination to obtain 1320 kg of primary Iron-based pigments, after the filtrate washing liquid merges, obtain 10200 kilograms of ammonium magnesium chloride solution (34%NH 4 Cl, 8.7% MgCl 2 ), this magnesium ammonium chloride solution solution is delivered to by the first heater 9, the second heater 6, the first flash chamber 8, the second flash chamber 5, the first circulation pump 10, the second circulation pump 7 , and t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a comprehensive utilization production method using hydrochloric acid method artificial rutile production waste liquid, and the comprehensive utilization production method comprises the following steps: leaching waste liquid to send into an ammoniation reactor for neutralization reaction with ammonia; sending a neutralized liquid material into an aging tank for aging; sending aged slurry into a filter press for solid phase matter separation and washing; sending a wet filter cake into a calcining kiln for calcining, merging filtering and washing liquor to obtain an magnesium ammonium chloride solution, and sending the magnesium ammonium chloride solution into an evaporation and concentration system for concentration and evaporation; cooling concentrated slurry for crystallization, centrifugally separating and drying. According to the method, iron in the leached waste liquid is processed into iron series pigments, chlorine and other elements are processed into fertilizers, the use of mineral resources can be expanded, comprehensive utilization of resources can be realized, the shortcoming that hydrochloric acid method artificial rutile production waste liquid in the prior art is processed by incineration pyrolysis process treatment process which is high in energy consumption can be overcome, the production treatment cost can be greatly reduced, zero emission of economic production can be realized, and the method has the characteristics of simple process flow, saving investment, low production cost, obvious economic benefit and the like.

Description

technical field [0001] The invention belongs to a comprehensive utilization production method of artificial rutile production waste liquid by hydrochloric acid method, and relates to the comprehensive utilization of hydrochloric acid leaching titanium concentrate and titanium slag to produce artificial rutile chloride dilute acid solution rich in impurities such as iron, magnesium, calcium and manganese. Utilize production methods. Background technique [0002] Artificial rutile is an important raw material for the production of titanium tetrachloride, and the industrial chain can be extended to titanium dioxide and titanium sponge; it can also be directly used as raw materials for the production of enamel, ceramics, welding electrodes and other products, which plays a pivotal role in the development of the titanium industry . [0003] The main production methods of artificial rutile are: hydrochloric acid leaching method, reduction corrosion method, electric furnace smelti...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C01G49/06C05G1/00
Inventor 龚家竹
Owner 龚家竹