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Cleaning agent special for monocrystal/polycrystal silicon cutting waste mortar barrel

A cleaning agent and waste mortar technology, which is applied in the direction of detergent compounding agent, detergent composition, surface active detergent composition, etc., can solve the problems of ineffective cleaning effect and general cleaning effect, so as to reduce pollution discharge and eliminate secondary pollution. Secondary pollution and low cleaning cost

Inactive Publication Date: 2013-11-13
PRECISION RECYCLING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Domestic metal cleaning agents such as CN 102409349 A are generally alkaline, and the effect is not obvious when cleaning waste mortar buckets; plastic cleaning agents such as CN 102206557 A are mainly used for cleaning recycled plastics, and their pH is alkaline. The cleaning effect is average when cleaning the mortar bucket

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A special cleaning agent for monopolysilicon cutting waste mortar barrels, which consists of the following substances in weight percent: 15% oxalic acid, 5% sodium dodecylsulfonate, 1% fatty alcohol polyoxyethylene ether and 0.5% silicon Resin polyether emulsion, the balance is water.

[0020] Adjust the pH value of the cleaning agent made according to the above formula between 1-3, soak the polluted waste mortar bucket in the cleaning agent solution for 1-3 minutes at room temperature, take it out, and then rinse it with tap water You can get a clean as new mortar bucket.

Embodiment 2

[0022] A special cleaning agent for single-polysilicon cutting waste mortar barrels, which consists of the following substances in weight percent: 5% sulfuric acid, 10% sodium dodecylbenzenesulfonate, 1% fatty alcohol polyoxyethylene ether and 0.5% Silicone resin polyether emulsion, the balance is water.

[0023] Adjust the pH value of the cleaning agent made according to the above formula between 1-3, soak the polluted waste mortar bucket in the cleaning agent solution for 3 to 5 minutes at room temperature, take it out, and then rinse it with tap water You can get a clean as new mortar bucket.

Embodiment 3

[0025] A special cleaning agent for monopolysilicon cutting waste mortar bucket, which is composed of the following substances in weight percent: 8% hydrochloric acid, 15% sodium α-alkenyl sulfonate, 5% fatty alcohol polyoxyethylene ether and 1% silicon Resin polyether emulsion, the balance is water.

[0026] Adjust the pH value of the cleaning agent made according to the above formula between 1-3, soak the polluted waste mortar bucket in the cleaning agent solution for 3 to 5 minutes at room temperature, take it out, and then rinse it with tap water You can get a clean as new mortar bucket.

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PUM

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Abstract

The invention relates to a cleaning agent and in particular relates to a cleaning agent special for a monocrystal / polycrystal silicon cutting waste mortar barrel. The cleaning agent consist of the following materials in percentage by weight: 0.2-15% of acid, 1-20% of a surfactant, 0-5% of fatty alcohol-polyoxyethylene ether, 0.5-1% of silicon resin polyether emulsion and the balance of water. The cleaning agent can remove pollutants adhered to the surface of the mortar barrel quickly and effectively at room temperature, realizes efficient utilization of resources, and is low in cost, simple in cleaning process and strong in detergency; the cleaning ratio is high up to above 99.9%; and the cleaning solution can be recycled, so a high environment-friendly requirement can be met.

Description

technical field [0001] The invention relates to an industrial cleaning agent, in particular to a cleaning agent specially used for cleaning monopolysilicon cutting waste mortar barrels, and belongs to the field of chemical cleaning agents. Background technique [0002] Silicon is an important material used in solar cells, semiconductors, liquid crystal displays, and more. The method of making single crystal silicon is usually to make polycrystalline silicon or amorphous silicon first, and then grow rod-shaped single crystal silicon from the melt by Czochralski method or suspension zone melting method. Silicon rods are formed into silicon wafers by wire cutting process. At present, the vast majority of silicon slice processing enterprises in the world widely use special-purpose wire-cutting equipment. This special-purpose wire-cutting equipment uses thousands of steel wires with a thickness of about 120-160 μm as the cutting carrier, and its hardness is second only to diamo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11D1/831C11D3/20C11D3/04
Inventor 曾宪伟
Owner PRECISION RECYCLING TECH CO LTD