CN1482278A

CN1482278A - Phytic acid cleaning agent

Info

Publication number: CN1482278A
Application number: CNA031428452A
Authority: CN
Inventors: 赵定宣
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-06-21
Filing date: 2003-06-21
Publication date: 2004-03-17
Anticipated expiration: 2023-06-21
Also published as: CN1218069C

Abstract

The present invention relates to cleaning agent, and is especially one kind of reducing cleaning agent for the surface of copper or copper alloy material. The cleaning agent consists of phytic acid 2.5-10 wt%, alcohol amine 0.8-2.0 wt%, polyethylene addition cd type non-ionic surfactant 0.6-2.0 wt% and co-solvent 1.0-8.0 wt% except water. Replacing traditional dilute sulfuric acid, hydrochloric acid, nitric acid, etc. with phytic acid makes the cleaning agent possess no demerits like those of traditional cleaning agent and environment friendly. The cleaning agent with organic acid results in stable quality of the cleaned copper or copper alloy surface, has no injury to clothing and skin, no stimulating smell, and is reusable.

Description

The phytic acid clean-out system

One, technical field

The present invention relates to a kind of clean-out system, refer in particular to a kind of copper or copper alloy section bar surface reduction clean-out system.

Two, background technology

Copper or copper alloy can generate a kind of by cupric oxide (CuO) and Red copper oxide (Cu at 600～800 ℃ of high temperature lower surfaces ₂O) oxide film of Gou Chenging.Remove the oxide compound of copper or copper alloy surface, traditional method is to adopt chemical corrosion method, that is: generally be with hot copper or copper alloy are rolling come out after, by mineral acid (as dilute sulphuric acid, hydrochloric acid, nitric acid) scavenging solution circulating line, cured through washing again after pickling.Because there is a lot of shortcoming in this traditional method, need handle regeneration as matting complexity, copper spent acid solution and promptly have waste water pollution problem etc., is progressively replaced by the reductibility clean-out system.Announced a kind of " copper or copper alloy section bar surface cleaning agent " (application number 87101262 as Chinese patent, authorization CN1012183B), it contains 2-3 unit lower aliphatic alcohols, thanomin, alkali and water, it is characterized in that also containing the nonionogenic tenside of polyoxyethylene adducts type.At present, commercially available reductibility clean-out system all belongs to the alkaline cleaner type.

Chinese patent also once disclosed a kind of " phosphoric cleaning agent and compound method thereof " (publication number CN86104101A), it is formulated by phosphoric acid, tetrasodium ethylenediamine tetraacetate, inhibiter A, TX-10 detergent and water, the contained per-cent of its component each component (weight) is: phosphatase 24 0～48%, tetrasodium ethylenediamine tetraacetate 0.4～0.6%, inhibiter A1～1.2%, TX-10 detergent 0.6～0.63%, it mainly is applicable to steel surface.

Three, summary of the invention

The objective of the invention is to overcome the shortcoming of traditional acid copper or copper alloy section bar surface cleaning agent, a kind of phytic acid clean-out system is provided.

For achieving the above object, the solution that the present invention takes is: a kind of phytic acid clean-out system, its proportioning components are (weight percent): phytic acid 2.5～10.0, hydramine 0.8～2.0, the nonionogenic tenside 0.6～2.0 of polyoxyethylene adducts type, solubility promoter 1.0～8.0, water surplus.

Phytic acid is to be the rather similar biochemical industry product of a kind of and inositol of raw material production with the phytate, for yellow or tawny thick liquid, is six phosphoric acid ester of inositol, molecular formula C ₆H ₆O ₂₄P ₆H ₁₆, molecular weight 660.Owing to contain 12 reactive hydrogen ions in the acid, phytic acid shows strongly-acid.Phytic acid is soluble in water, aqueous ethanol, acetone.12 hydrogen ions in the phytic acid can divide for three steps carried out ionization, so phytic acid can obtain different acid salt under different pH, when pH＞10, at this moment the complete ionization of 12 acidic hydrogen ions in the phytic acid generate complete phytate.Phytic acid has stronger complexing action with metal ion in the pH of broad scope, remove cationic sanitising agent so phytic acid except the same with mineral acid effects such as dilute sulphuric acid, hydrochloric acid, can also be used as, as removing the grease on the metal.Phytic acid also has other many purposes, as directly being used as medicine, food and fruit and vegetable fresh-keeping agent, chemical materials corrosive inhibitor, water softening agent or the like.Phytic acid has abundant raw material as basic material in China.Whether in invention, phytic acid can adopt 20% or 50% or 70% phytic acid, no matter and decolour and all can use.

Hydramine can adopt Monoethanolamine MEA BASF, diethanolamine, trolamine in the present invention as a kind of inhibiter.Above-mentioned three kinds of hydramine all are good inhibiter, and it can at the copper that has cleaned or copper alloy surface forms the electrostatic adhesion layer and make copper surface and air isolated, thereby delays reoxidizing of copper

The nonionogenic tenside of polyoxyethylene adducts type adopts fatty alcohol-polyoxyethylene ether (IW).The nonionogenic tenside of polyoxyethylene adducts type has and helps the thermal reduction reaction effect by force, and can also go back the native copper complexing and play the resistance oxygenizement with copper is lip-deep, but also the effective froth breaking effect of tool.It can prevent effectively in the clean-out system that dissolved oxygen causes copper or copper alloy reoxidizes and variable color.

Solubility promoter is emulsifying agent and the lower molecular weight Fatty Alcohol(C12-C14 and C12-C18) mixture as 2～3 yuan of hydroxyl alcohol, ethanol, propyl alcohol, Virahol.Emulsifying agent preferably adopts emulsifying agent TX ₁₀

The present invention is owing to adopt phytic acid to replace the employed dilute sulphuric acid of traditional method, hydrochloric acid, nitric acid etc., and formulated copper or copper alloy section bar surface reduction clean-out system have overcome the shortcoming of traditional acidic cleaner, are a kind of clean-out systems of environmental type.Compare with traditional acidic cleaner, have easy to use, operational safety, the advantage of control easily, can make the copper or the copper alloy surface steady quality that cleaned.Because this clean-out system is the organic acid clean-out system, clothes, skin there are not dangerous damage, non-stimulated peculiar smell, safety does not have anxiety during operation, and it is reusable, and waste liquid still can be admixed new liquid and recycle after staticly settling processing.

Four, embodiment

Below in conjunction with embodiment the present invention is remake description.

Example number	The main component of clean-out system (weight percent)					PH value	Clean back copper or copper alloy surface situation and relevant explanation
	The main component of clean-out system (weight percent)							70% phytic acid	Trolamine	????IW	Solubility promoter
	Ethanol	TX ₁₀									Solubility promoter
	Ethanol	TX ₁₀	?1	??10	???1						????1	??5	2	??1-1.5	Bright and clean, luminance brightness is not enough, a small amount of interference color
?2	??8	???1	?1	??10	???1	????1	??5	2	??1.5		????1	??5	2	??1-1.5
?2	??8	???1	?3	??6	???1	????1	??5	2	??1.5	????1	??5	2	??1.2-2
?4	??8	???0.7	?3	??6	???1	????1.5	??5	2	??1.5	????1	??5	2	??1.2-2	Bright and clean light, no interference color
?4	??8	???0.7	?5	??8	???0.8	????1.5	??5	2	??1.5	????2	??5	2	??1.5
?6	??8	???0.8	?5	??8	???0.8	????1.2	??5	2	??1.5	????2	??5	2	??1.5

??7	????5	????1	????1.5	??5	??2	??1.5-2	Bright and clean light, no interference color
??7	????5	????1	????1.5	??5	??2	??1.5-2		??8	????6	????1	????1.7	??5	??2	??1.5-2
??9	????8	????1	????1.2	??5	??2	??1.5-2		??8	????6	????1	????1.7	??5	??2	??1.5-2
??9	????8	????1	????1.2	??5	??2	??1.5-2		??10	????5	????1	????1	??5	??2	??1.5	Good to the red copper cleaning performance
??11	????5	????1	????1	??5	??2	??1.5	Longer during to the brass cleaning charge, effective in 15-30 divides	??10	????5	????1	????1	??5	??2	??1.5	Good to the red copper cleaning performance
??11	????5	????1	????1	??5	??2	??1.5		??12	????5	????1	????1	??5	??2	??1.5
??13	????6	????1	????1.5	??5	??2	??1-2		??12	????5	????1	????1	??5	??2	??1.5	New liquid embathed 15 fens, recycled and must embathe 15-30 minutes
??13	????6	????1	????1.5	??5	??2	??1-2	??14	????6	????1	????1.5	??5	??2	??1-2
??15	????6	????1	????1.5	??5	??2	??1-2	??14	????6	????1	????1.5	??5	??2	??1-2	Decontamination, oil removing, removing oxide layer effect to red copper, phosphor-copper, brass etc. are all more satisfactory
??15	????6	????1	????1.5	??5	??2	??1-2	??16	????8	????1	????1.2	??5	??2	??1-2

The last main composition (weight percent) that has shown among each embodiment, and its surplus is water.As can be seen from the above table, the net effect of embodiment 15 and embodiment 16 is best.

Claims

1, a kind of phytic acid clean-out system is characterized in that: its proportioning components is (weight percent): phytic acid 2.5～10.0, hydramine 0.8～2.0, the nonionogenic tenside 0.6～2.0 of polyoxyethylene adducts type, solubility promoter 1.0～8.0, water surplus.

2, a kind of phytic acid clean-out system according to claim 1, it is characterized in that: hydramine can be Monoethanolamine MEA BASF, diethanolamine, trolamine.

3, a kind of phytic acid clean-out system according to claim 1 is characterized in that: the nonionogenic tenside of polyoxyethylene adducts type, adopt fatty alcohol-polyoxyethylene ether (IW).

4, a kind of phytic acid clean-out system according to claim 1, it is characterized in that: solubility promoter is the mixture of emulsifying agent and lower molecular weight Fatty Alcohol(C12-C14 and C12-C18).

5, a kind of phytic acid clean-out system according to claim 1, it is characterized in that: phytic acid can adopt 20% or 50% or 70% phytic acid.

6, a kind of phytic acid clean-out system according to claim 4 is characterized in that: emulsifying agent adopts emulsifying agent TX ₁₀

7, a kind of phytic acid clean-out system according to claim 4 is characterized in that: the lower molecular weight Fatty Alcohol(C12-C14 and C12-C18) is 2～3 yuan of hydroxyl alcohol, ethanol, propyl alcohol, Virahol.