Method for recycling boron carbide in ground waste slurry and application method of recycled boron carbide

A technology of boron carbide and waste slurry, which is applied in chemical instruments and methods, carbon compounds, inorganic chemistry, etc., can solve the problems of inconvenient wastewater treatment and rising costs, and achieve the effect of reducing pollution

Inactive Publication Date: 2019-12-20
FUJIAN JING AN OPTOELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Based on the above, it can be known that there are high pollutants produced during the processing of those existing in the prior art, such as grinding powder, copper polishing slurry and polishing colloidal solution, etc., and the suspended solids produced will also cause inconvenience in wastewater treatment. make the cost rise

Method used

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  • Method for recycling boron carbide in ground waste slurry and application method of recycled boron carbide
  • Method for recycling boron carbide in ground waste slurry and application method of recycled boron carbide

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Experimental program
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Effect test

Embodiment 1

[0058] refer to figure 2 , a kind of method that the present invention provides the boron carbide recycling in grinding waste slurry, comprises the following steps:

[0059] Step 1, the collection of grinding waste slurry:

[0060] Collect the waste slurry after the sapphire grinding process in barrels;

[0061] Step 2, solid-liquid separation:

[0062] The grinding waste slurry collected in step 1 is subjected to solid-liquid separation, and after precipitation, the lower layer powder at the bottom is extracted for later use; wherein, the method of solid-liquid separation is gravity precipitation method, and the precipitation time is 30 minutes;

[0063] Step 3, dehydration and drying:

[0064] Extract the lower layer powder in step 2 to a dehydrator for dehydration and drying to obtain waste old dry powder with a moisture content of 10%; the dehydrator speed is 600rpm, the dehydration time is 10min, and the baking temperature is 80°C. The time is 120min;

[0065] Step ...

Embodiment 2

[0071] refer to figure 2 , a method for recycling boron carbide in grinding waste slurry, comprising the following steps:

[0072] Step 1, the collection of grinding waste slurry:

[0073] Collect the waste slurry after the sapphire grinding process in barrels;

[0074] Step 2, solid-liquid separation:

[0075] The grinding waste slurry collected in step 1 was subjected to solid-liquid separation, and after precipitation, the lower layer powder at the bottom was extracted for later use; wherein, the method of solid-liquid separation was gravity precipitation, and the precipitation time was 45 minutes;

[0076] Step 3, dehydration and drying:

[0077] Extract the lower layer powder in step 2 to a dehydrator for dehydration and drying to obtain waste old dry powder with a moisture content of 8%; wherein the dehydrator rotates at 1300rpm, the dehydration time is 15min, and the baking temperature is 100°C. The time is 135min;

[0078] Step 4, particle size screening:

[007...

Embodiment 3

[0084] refer to figure 2 , a method for recycling boron carbide in grinding waste slurry, comprising the following steps:

[0085] Step 1, the collection of grinding waste slurry:

[0086] Collect the waste slurry after the sapphire grinding process in barrels;

[0087] Step 2, solid-liquid separation:

[0088] The waste grinding slurry collected in step 1 is subjected to solid-liquid separation, and after precipitation, the lower layer powder at the bottom is extracted for later use; wherein, the method of solid-liquid separation is gravity precipitation, and the precipitation time is 60 minutes;

[0089] Step 3, dehydration and drying:

[0090] Extract the lower layer powder in step 2 to a dehydrator for dehydration and drying to obtain waste old dry powder with a moisture content of 5%. The dehydrator rotates at 2000rpm, the dehydration time is 20min, and the baking temperature is 120°C. The time is 150min;

[0091] Step 4, particle size screening:

[0092] Place the...

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Abstract

The invention discloses a method for recycling boron carbide in ground waste slurry. The method includes the following steps: (1) collection of the ground waste slurry: collecting the waste slurry obtained after the grinding process operation of sapphire in a barrel packaging mode; (2) solid-liquid separation: performing solid-liquid separation by using a gravity precipitation method on the groundwaste slurry collected in the step (1), performing precipitation for 30-60 min, and extracting a lower-layer powder material at the bottom for later use; (3) dehydration and drying: putting the extracted lower-layer powder material obtained in the step (2) into a dehydrator, performing dehydration at a rotation speed of 600-2000 rpm for a dehydration time of 10-20 min, and performing drying at abaking temperature of 80-120 DEG C so as to obtain waste old dry powder with a moisture content of 5-10%; and (4) particle size screening: putting the waste old dry powder obtained in the step (3) ona particle-size sorting machine, and performing sorting so as to obtain sorted recycled boron carbide powder.

Description

technical field [0001] The invention relates to a method for recycling boron carbide in waste grinding slurry and an application method thereof. Background technique [0002] Sapphire material has a series of characteristics such as high strength, high hardness, high temperature resistance, abrasion resistance, corrosion resistance, light transmission performance, and excellent electrical insulation performance. Due to its stable optical and physical and chemical properties, it is used in various complex environments. In addition to being widely used in military infrared devices, missiles, submarines, satellite space technology, detection and high-power lasers, it is also used in microelectronics, optoelectronics, semiconductors, and information display, and sapphire wafers are important technologies. Crystal material is still the most economical, most mature and most used substrate material for LED lamps. [0003] Sapphire substrate processing includes rough grinding, fine...

Claims

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Application Information

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IPC IPC(8): C01B32/991B24B1/00
CPCB24B1/00C01B32/991
Inventor 周志豪王海呈李贤途李志宇梁彬彬
Owner FUJIAN JING AN OPTOELECTRONICS CO LTD
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