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Preparation method of regeneration liquid directly used for multi-line cutting of hard and brittle material

A hard and brittle material, multi-wire cutting technology, applied in the direction of lubricating composition, etc., can solve the problems of poor application effect and unstable recovery quality of recycled cutting fluid, achieve good application effect, solve product instability, and good effect Effect

Active Publication Date: 2014-07-16
JIANGSU OXIRANCHEM CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The object of the present invention is to: aim at the deficiencies of the above-mentioned prior art, provide a kind of preparation method that can be directly used in the regeneration liquid of multi-wire cutting of hard and brittle materials, which can effectively eliminate the compound of peroxy-O-O- in the regeneration liquid , can also effectively control the stability of indicators such as the viscosity of the regeneration liquid, thereby ensuring the stability of the cutting process; its process design is reasonable, the steps are simple, the operation is simple and cost-effective, the removal effect is good, the recovery cost is low, and the regeneration after treatment The peroxide value of the cutting fluid can be completely eliminated, which can effectively solve the problems of unstable recovery quality and poor application effect of the existing regenerated cutting fluid

Method used

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  • Preparation method of regeneration liquid directly used for multi-line cutting of hard and brittle material
  • Preparation method of regeneration liquid directly used for multi-line cutting of hard and brittle material
  • Preparation method of regeneration liquid directly used for multi-line cutting of hard and brittle material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Treat 1 ton of primary cutting fluid (cutting waste mortar that has been pre-filtered, water content 20%, peroxide value 5mmol / Kg).

[0040] Add 600kg of deionized water to the primary cutting solution for dilution, heat the diluted primary cutting solution to 60°C in the reactor, and stir thoroughly during the heating process; after that, add 0.2kg of catalase to the primary cutting solution , fully stirred for 60 minutes, and the peroxide content was found to be undetected; then the above liquid was passed through positive and negative ion exchange columns to remove ionic impurities, and the liquid conductivity was controlled by controlling the flow rate of the initial liquid, the pressure of the resin column and the temperature of the liquid. The rate is less than 10μS / cm, and the impurity-removing liquid is obtained after passing the test; the impurity-removing liquid is sent to a thin-film evaporator, and the vacuum degree and material temperature are controlled for...

Embodiment 2

[0043] Treat 1 ton of primary cutting fluid (cutting waste mortar that has been pre-filtered, with a water content of 50% and a peroxide value of 15mmol / Kg).

[0044]Heat 1 ton of the primary fraction to 30°C in a reactor, and stir thoroughly during the heating process; then, add 0.24 kg of catalase to the primary fraction and stir thoroughly for 10 minutes, and its peroxide value is not detected ; Subsequently, the above-mentioned liquids are respectively passed through positive and negative ion exchange columns to remove ionic impurities. By controlling the liquid flow rate, resin column pressure and liquid temperature, the conductivity of the liquid is less than 10μS / cm. The liquid is sent to the thin-film evaporator, and the vacuum degree and material temperature are controlled for negative pressure distillation until the moisture content of the impurity removal liquid is reduced to below 0.5%, and 500Kg of qualified regenerated cutting mother liquor is obtained; 2.5Kg of v...

Embodiment 3

[0047] Treat 1 ton of primary cutting fluid (cutting waste mortar that has been pre-filtered, with a water content of 40% and a peroxide value of 22mmol / Kg).

[0048] Heat 1 ton of the primary liquid to 45°C in a reactor, and stir fully during the heating process; after that, add 0.48 kg of catalase to the primary liquid, stir it fully for 30 minutes, and measure its peroxide value to be Detection; then the above-mentioned liquid is passed through positive and negative ion exchange columns to remove ionic impurities, and by controlling the liquid flow rate, resin column pressure and liquid temperature, the conductivity of the liquid is less than 10μS / cm, and the liquid is obtained after passing the impurity removal liquid; The impurity removal liquid is sent into the thin film evaporator, and the vacuum degree and material temperature are controlled for negative pressure distillation until the moisture content of the impurity removal liquid is reduced to below 0.5%, and 600Kg o...

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Abstract

The invention discloses a preparation method of regeneration liquid which can be directly used for multi-wire cutting of hard and brittle materials. It is mainly obtained from the main component of the primary cutting fluid obtained after preliminary solid-liquid separation of waste mortar, and further processing and refining; the regeneration treatment steps mainly include: 1. Reducing viscosity; 2. Eliminating peroxide; 3. Removing ions ; 4. Remove moisture; 5. Add viscosity regulator. The product of the invention has good application effect, reasonable process design, simple method steps, simple operation and high cost performance, and can effectively solve the problems of high cost, unstable quality of the treated regeneration liquid and poor application effect in the existing regeneration cutting fluid regeneration method. important question.

Description

technical field [0001] The invention relates to a regeneration liquid in the field of polysilicon cutting waste treatment, in particular to a preparation method for a regeneration liquid that can be directly used for multi-wire cutting of hard and brittle materials. Background technique [0002] As an inexhaustible clean energy source, the development and utilization of solar energy is attracting great attention never before. Commercial solar cells use non-toxic crystalline silicon. Monocrystalline and polycrystalline silicon cells are characterized by high photoelectric conversion efficiency, long life and good stability, but the cost is high. With the gradual reduction of the cost of silicon materials, silicon The call for further reduction in the cutting cost of film is getting louder and louder. [0003] With the development of the solar silicon wafer cutting industry, it is inevitable to optimize the cost and reduce environmental pollution while improving the quality o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M175/00
Inventor 朱建民刘兆滨董振鹏富扬张泽民
Owner JIANGSU OXIRANCHEM CO LTD