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

Merging and desiliconisation method for clinker dissolved crude liquor by sintering method and dissolved mineral slurry by bayer process

A technology of Bayer method and sintering method, which is applied in the direction of alumina/hydroxide, etc., which can solve the problems of complex production process, low unit capacity of equipment, and low system concentration, so as to increase system concentration and reduce power consumption and steam consumption , the effect of saving energy

Inactive Publication Date: 2009-07-22
GUIZHOU BRANCH CHINA ALUMINUM IND
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Provide a method for confluent desiliconization of sintering clinker dissolution crude liquid and Bayer process dissolution slurry to solve technical problems in the prior art such as complex production process, low system concentration, low unit capacity of equipment, and high energy consumption

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
  • Merging and desiliconisation method for clinker dissolved crude liquor by sintering method and dissolved mineral slurry by bayer process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] 20% sintering method clinker dissolution crude liquid is pumped into the final flash evaporator of the Bayer method dissolution process and mixed with the Bayer method high-temperature dissolution ore slurry for heating, and the mixed and heated slurry enters the dilution tank through self-pressure and the Bayer method red mud The lotion is mixed and diluted, and the diluted slurry is pumped into the dissolution tank and stirred for 4 hours for further desiliconization. The desiliconized slurry is pumped into the red mud separation and settling tank for sedimentation and separation of red mud. After the separated overflow is filtered by leaves, the refined solution of sodium aluminate solution is sent to the decomposition process, and the underflow enters the red mud sedimentation and washing process.

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 confluence desiliconisation method for clinker dissolved crude solution with a sintering method and dissolved slurry with a Bayer process, wherein, 15 percent to 25 percent of the clinker dissolved crude solution with a sintering method and high-temperature dissolved ore slurry with the Bayer process are mixed and heated in a flash evaporator which is at the last stage of the dissolution process of the Bayer process, and then diluted, settled and separated. Compared with the prior art, the method utilizes the high-temperature dissolved ore slurry with the Bayer process for heating the clinker dissolved crude solution with the sintering method so as to improve the system concentration of the whole alumina production and reduce material flow in working procedures of desiliconisation, settlement, leaf filtration and the like in a sintering method system, thereby improving the productivity the equipment and reducing power and steam consumption of unit product as well as production cost.

Description

technical field [0001] The invention belongs to the technical field of alumina production by a hybrid method, and in particular relates to a desiliconization method in which clinker dissolution crude liquid by a sintering method and a Bayer method dissolution slurry are merged. Background technique [0002] The main process flow of my country's current mixed-link alumina production plant is as follows: in the Bayer process, the high-alumina ore enters the high-pressure dissolution process after the raw material is ground, and after high-pressure dissolution, the dissolved ore pulp is added to the washing liquid of the sedimentation separation washing process for further processing. dilution. After the diluted crude liquid is filtered by leaves, the semen is decomposed to produce aluminum hydroxide, which is then roasted to obtain finished alumina. In the sintering process, the bauxite ore enters the clinker sintering process after the raw material is ground. The fired clink...

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 Applications(China)
IPC IPC(8): C01F7/02
Inventor 王奎龚智远何在平伍良渝王文志刘昌洌刘德宽
Owner GUIZHOU BRANCH CHINA ALUMINUM IND