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A kind of float glass tin stripping liquid and surface tin stripping method

A float glass and tin stripping technology, which is applied in the field of tin layer tin stripping on the surface of float glass, can solve the problems of cumbersome operation process, complex process flow, high cost, etc., and achieve uniform distribution of components, low erosivity, and easy operation Effect

Active Publication Date: 2021-04-13
山东孟友新材料科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These measures are cumbersome to operate, the process is complicated, and the cost is high. The above measures still cannot completely solve the problem of tin surface on the glass surface

Method used

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  • A kind of float glass tin stripping liquid and surface tin stripping method
  • A kind of float glass tin stripping liquid and surface tin stripping method
  • A kind of float glass tin stripping liquid and surface tin stripping method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Take 1000kg of 85wt% nitric acid aqueous solution, 120kg of ferric nitrate and 31kg of stabilizer to prepare tin stripping solution. Among them, the stabilizer is composed of tin chloride, diethyltriaminepentaacetic acid (DTPA), EDTMP (ethylenediaminetetramethylenephosphonic acid) and sodium nitrate, based on 100% of the stabilizer, each component in the stabilizer Content (wt%): tin chloride 12.7%, diethyltriaminepentaacetic acid (DTPA) 10.6%, EDTMP (ethylenediaminetetramethylenephosphonic acid) 23.6%, sodium nitrate 53.1%.

[0026] Add the above ferric nitrate, tin chloride and sodium nitrate into the nitric acid aqueous solution, mix evenly, then add DTPA and EDTMP, mix evenly, and obtain the tin stripping solution.

Embodiment 2

[0028] Take 1000kg of 88wt% nitric acid aqueous solution, 160kg of ferric nitrate and 42kg of stabilizer to prepare tin stripping solution. Wherein, stabilizer is with embodiment 1.

[0029] Add the above ferric nitrate, tin chloride and sodium nitrate into the nitric acid aqueous solution, mix evenly, then add DTPA and EDTMP, mix evenly, and obtain the tin stripping solution.

Embodiment 3

[0031] Take 1000kg of 86wt% nitric acid aqueous solution, 150kg of ferric nitrate and 10kg of stabilizer to prepare tin stripping solution. Wherein, stabilizer is with embodiment 1.

[0032] Add the above ferric nitrate, tin chloride and sodium nitrate into the nitric acid aqueous solution, mix evenly, then add DTPA and EDTMP, mix evenly, and obtain the tin stripping solution.

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Abstract

The invention provides a float glass tin stripping solution and a surface tin stripping method. The tin stripping solution is composed of nitric acid aqueous solution, ferric nitrate and a stabilizer. The tin stripping solution of the present invention has good stability, uniform distribution of components, can remove the tin layer on the surface of the float glass evenly and quickly, has the advantages of fast tin stripping speed, simple tin stripping method, easy operation, and clean tin stripping, and can effectively Eliminate multicolored phenomenon on the glass surface. Moreover, the tin stripping solution has low aggressiveness to glass, and the microetching rate is about 0.3 microns / minute, and the tin stripping process will not damage the glass itself.

Description

technical field [0001] The invention relates to a method for removing the tin layer on the surface of float glass and a preparation formula thereof, in particular to a method for dealing with multicolored phenomenon of float glass. Background technique [0002] Float glass is widely used and is one of the most important original sheets in glass deep processing. It flows into the tin bath, spreads out on the surface of the tin liquid and drifts forward under the traction of the transmission roller. Under a certain temperature system, relying on surface tension and gravity, the steps of flattening and thinning are completed. After cooling, the glass is lifted by the transition roller table, leaves the tin bath and enters the annealing kiln, and is packed into boxes after being cut and inspected. The float glass produced by this process has the characteristics of good quality, many varieties, high output and short operation cycle. [0003] However, there is an unavoidable pro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03B18/02C03B18/14
CPCC03B18/02C03B18/14
Inventor 孟德友
Owner 山东孟友新材料科技有限责任公司
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