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Production method of gold tailing water-permeable brick

A technology for gold tailings and permeable bricks, which is applied in the direction of manufacturing tools, clay products, applications, etc., achieves the effects of small specific gravity, simple preparation method, and convenient industrial production.

Active Publication Date: 2016-07-20
YANTAI ZHIBEN INTPROP OPERATIONS MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] There are also many studies on using tailings to prepare permeable bricks. For example, CN103204698A discloses a method for using iron tailings to prepare environmentally friendly permeable bricks. Iron tailings are used as basic aggregates, and a certain amount of waste glass slag is introduced to prepare Environmentally friendly permeable bricks with excellent performance have been discovered; however, research on the preparation of permeable bricks specifically for oil drilling waste fluid and gold tailings has not yet been seen.

Method used

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Examples

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Effect test

Embodiment 1

[0031] A method for preparing a gold tailings permeable brick, comprising the following preparation process:

[0032] (1) Pretreatment of gold tailings: the main chemical components of gold tailings are 15wt% alumina and 65wt% silica, and other components also contain a small amount of iron oxide, magnesium oxide and other impurities;

[0033] The pretreatment process is as follows: first, the gold tailings are crushed to obtain particles with a particle size of 5mm, and then further finely ground to make the particle size less than 0.1mm; then dehydrated at 85°C, and pre-calcined at 820°C for 0.8h; Cool in the furnace and grind again to make the particle size less than 0.03mm;

[0034] (2) Oil drilling waste liquid immersion: The oil drilling slurry is subjected to solid-liquid separation to obtain oil drilling waste liquid, and the pretreated gold tailings are impregnated with oil drilling waste liquid. The immersion temperature is 42°C and the immersion time is 16 hours. O...

Embodiment 2

[0039] A method for preparing a gold tailings permeable brick, comprising the following preparation process:

[0040] (1) Pretreatment of gold tailings: the main chemical components of gold tailings are 15wt% alumina and 65wt% silica, and other components also contain a small amount of iron oxide, magnesium oxide and other impurities;

[0041] The pretreatment process is as follows: first, the gold tailings are crushed to obtain particles with a particle size of 2mm, and then further finely ground to make the particle size less than 0.1mm; then dehydrated at 80°C, and pre-calcined at 800°C for 0.8h; then Cool in the furnace and grind again to make the particle size less than 0.03mm;

[0042] (2) Oil drilling waste liquid immersion: The oil drilling slurry is subjected to solid-liquid separation to obtain oil drilling waste liquid, and the pretreated gold tailings are impregnated with oil drilling waste liquid, the immersion temperature is 40°C, and the immersion time is 12h. ...

Embodiment 3

[0047] A method for preparing a gold tailings permeable brick, comprising the following preparation process:

[0048] (1) Pretreatment of gold tailings: the main chemical components of gold tailings are 15wt% alumina and 65wt% silica, and other components also contain a small amount of iron oxide, magnesium oxide and other impurities;

[0049] The pretreatment process is as follows: first, the gold tailings are crushed to obtain particles with a particle size of 4mm, and then further finely ground to make the particle size less than 0.1mm; then dehydrated at 90°C, and pre-calcined at 860°C for 0.8h; then Cool in the furnace and grind again to make the particle size less than 0.03mm;

[0050] (2) Oil drilling waste fluid immersion: The oil drilling slurry is subjected to solid-liquid separation to obtain oil drilling waste fluid, and the pretreated gold tailings are impregnated with oil drilling waste fluid, the immersion temperature is 46°C, and the immersion time is 20h. Obt...

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Abstract

The invention discloses a production method of a gold tailing water-permeable brick. The gold tailing water-permeable brick high in strength and good in water permeability is produced by: pre-calcining gold tailings, impregnating with petroleum drilling waste liquid, optimizing material composition and content for preparing the water-permeable brick, and adjusting physical and chemical properties of the water-permeable brick.

Description

technical field [0001] The invention belongs to the field of permeable bricks, in particular to a preparation method of gold tailings permeable bricks. Background technique [0002] The comprehensive recycling of waste is a matter of merit in the present and benefit in the future. Since the founding of the People's Republic of China, my country's mining enterprises have accumulated a large amount of tailings. Due to the single mining mode, backward mining technology and outdated mining equipment, a large number of tailings remain and cannot be effectively recycled and reused. In addition, the tailings themselves contain excessive pollutants or harmful components. Various chemicals added during the beneficiation process remain in the tailings. Without treatment, they are directly stacked on the surface, which not only takes up a lot of land, but also Also seriously polluted the surrounding environment. Gold tailings are a common kind of tailings. There are a lot of gold tai...

Claims

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Application Information

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IPC IPC(8): C04B33/13C04B33/132C04B33/135C04B35/628B28B3/00
CPCB28B3/003C04B33/13C04B33/132C04B33/1352C04B33/138C04B35/62886C04B2111/00284C04B2201/20C04B2201/50C04B2235/3203C04B2235/3217C04B2235/3244C04B2235/3427C04B2235/425C04B2235/448C04B2235/5212Y02P40/60
Inventor 刘琴牟蕾
Owner YANTAI ZHIBEN INTPROP OPERATIONS MANAGEMENT CO LTD
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