CN1038321C - Dissolving method for titanium and zirconium metal - Google Patents
Dissolving method for titanium and zirconium metal Download PDFInfo
- Publication number
- CN1038321C CN1038321C CN93101026A CN93101026A CN1038321C CN 1038321 C CN1038321 C CN 1038321C CN 93101026 A CN93101026 A CN 93101026A CN 93101026 A CN93101026 A CN 93101026A CN 1038321 C CN1038321 C CN 1038321C
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- China
- Prior art keywords
- titanium
- acid
- dissolving
- zirconium
- dissolving method
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- Manufacture And Refinement Of Metals (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The present invention relates to a novel method for dissolving metallic titanium and metallic zirconium. 0.1 to 10% of fluoride is added and is used as a catalyst, and a reaction is carried out at 60 DEG C to 100 DEG C, so that the dissolving speed of the metallic titanium and the metallic zirconium dissolved by sulfuric acid, nitric acid or hydrochloric acid is enhanced by thousand times, and a usual long-time cooking boiling dissolving method is avoided. Thereby, the method can be widely used for the surface cleanness of the titanium and the zirconium as metal products, the preparation of samples, and the industry of titanium white powder prepared from remnant titanium.
Description
The invention belongs to the titanium in the titanium family metal in the inorganic chemistry, zirconium dissolving metal method.
The elemental metals titanium of titanium family element, zirconium are the unusual materials of indissoluble, and general acid, alkali example hydrochloric acid, nitric acid, phosphoric acid, potassium hydroxide, hydrogen-oxygen acid and other methods need the long-time heating boiling, and the power consumption height, speed is slow, dissolving power is little.
The objective of the invention is to invent and a kind ofly can with the method for the very fast dissolving titanium family of common general reagent metal, thereby further produce high-quality titanium family metal-salt at normal temperatures and pressures.
Dissolving method of the present invention comprises: a, make solvent with sulfuric acid or hydrochloric acid or nitric acid, then b, add the Na that accounts for total solution weight 0.1～10%
2TiF
6Make catalyzer, the back c that stirs, add solute and add water and regulate concentration, d, make temperature reach 60 ℃～100 ℃ initiation reactions, when question response acutely carries out, e, add entry with controls reaction speed.
Sulfuric acid or hydrochloric acid or nitric acid as solvent, usually adopt concentrated acid, add the entry initiation reaction again after adding catalyzer, the concentration of various sour initiation reactions is different, want thin up to 15～80% initiation reaction when falling as usefulness sulfuric acid dissolution metal titanium and zirconium, and need not heating, Dilution of sulphuric acid is enough to initiation reaction, reaction need add the water management speed of response when acutely carrying out, during with dissolving with hydrochloric acid metal titanium or zirconium, unit needs thin up to hydrochloric acid farming degree with 30～37%, initiation reaction more than the direct heating to 60 ℃, when adopting nitric acid dissolve, concentration 30～80% can direct molten titanium family metal.
For dissolution of metals quickly, generally adopt as the sour ratio of blanking metal: sulfuric acid (hydrochloric acid)=1: 4～6, metal: nitric acid=1: 3～5.
Adopting catalyzer among the present invention is to meet the Na that acid can discharge hydrogen fluoride (HF)
2TiF
6, the amount of its adding accounts for 0.1～10% of solution weight, is preferably 0.1～0.5%.
The temperature that acidolysis reaction causes is 60 ℃～100 ℃, when using sulfuric acid, need not outer heating, the initiation reaction of heat of dilution foot, and during with hydrochloric acid or nitric acid, necessary outer heat is to 60 ℃～100 ℃.When question response acutely carries out, emit the groove phenomenon in order to prevent reaction from carrying out too violent, need add water with controls reaction speed, its water add-on accounts for total solution weight 10～30%.
The present invention all has crucial meaning in actual industrial production and daily life.For example dissolve the titanium family metal to produce its compound; The washing on metal products surface.
Embodiment:
One, uses the sulfuric acid dissolution titanium metal
The titanium bits that 100kg is cleaned up oven dry add that 4000kg concentration is housed is 98% sulfuric acid and contain 3% catalyzer (Na
2TiF
6) the reactive tank of mix acid liquor in, slowly adding water, to be adjusted to sulfuric acid concentration be after 80% initiation reaction (carrying out under the normal temperature and pressure) beginning, to carry out rapidly and fiercely, adds the 500kg water for cooling and reduce slow down speed of response and reduce dissolving power of sulfuric acid concentration, to prevent to emit groove, have an accident.Dissolved in general 0.5～1 hour, determine to adopt vitriolic concentration according to the requirement that makes titanium concentration, but 40%, 80% dissolution rate is the fastest, other concentration solubleness are little, the titanium salt solution that this method makes is the trivalent titanium salt, available oxidant when needing tetravalent salt of titanium and making.
Two, use the dissolving with hydrochloric acid metal titanium
With 100kg titanium bits, 37% hydrochloric acid 1200kg adds in the reactive tank, adds 1%Na then
2TiF
6Stir, be heated to 60 ℃ of initiation reactions, dissolved in about 2 hours, its product is mainly the trivalent titanium salt.
Three, use sulfuric acid hydrochloric acid dissolution of metals zirconium with embodiment one, two.
Claims (4)
1, a kind of metal titanium, zirconium dissolved method is characterized in that:
A, make solvent with sulfuric acid or hydrochloric acid or nitric acid, then
B, adding account for the Na of total solution weight 0.1～10%
2TiF
6Make catalyzer, after stirring
C, add solute and add water and regulate concentration,
D, make temperature reach 60 ℃～100 ℃ initiation reactions, when question response acutely carries out,
E, add entry with controls reaction speed.
2, dissolving method according to claim 1 is characterized in that adopting concentrated acid to make solvent.
3, dissolving method according to claim 1, the concentration that it is characterized in that the sulfuric acid initiation reaction is 15～80%, and hydrochloric acid is 30～37%, and nitric acid is 30～80%.
4, dissolving method according to claim 1 is characterized in that adding the water management speed of response that accounts for total solution weight 10～30%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93101026A CN1038321C (en) | 1993-02-06 | 1993-02-06 | Dissolving method for titanium and zirconium metal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93101026A CN1038321C (en) | 1993-02-06 | 1993-02-06 | Dissolving method for titanium and zirconium metal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1090521A CN1090521A (en) | 1994-08-10 |
| CN1038321C true CN1038321C (en) | 1998-05-13 |
Family
ID=4983373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN93101026A Expired - Fee Related CN1038321C (en) | 1993-02-06 | 1993-02-06 | Dissolving method for titanium and zirconium metal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1038321C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1096287C (en) * | 1998-07-23 | 2002-12-18 | 北京有色金属研究总院 | Sampler-dissolving method for gold-germanium alloy |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62180091A (en) * | 1986-02-04 | 1987-08-07 | Mitsubishi Metal Corp | Pickling solution for finishing titanium alloy plate |
| JPS63130664A (en) * | 1986-11-21 | 1988-06-02 | Toray Silicone Co Ltd | Stripping agent composition |
| JPS63149396A (en) * | 1986-12-12 | 1988-06-22 | Kobe Steel Ltd | Pre-treatment of anodic oxidation of valve metal |
| JPH03281291A (en) * | 1990-03-30 | 1991-12-11 | Fujitsu Ltd | Titanium etching solution |
-
1993
- 1993-02-06 CN CN93101026A patent/CN1038321C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62180091A (en) * | 1986-02-04 | 1987-08-07 | Mitsubishi Metal Corp | Pickling solution for finishing titanium alloy plate |
| JPS63130664A (en) * | 1986-11-21 | 1988-06-02 | Toray Silicone Co Ltd | Stripping agent composition |
| JPS63149396A (en) * | 1986-12-12 | 1988-06-22 | Kobe Steel Ltd | Pre-treatment of anodic oxidation of valve metal |
| JPH03281291A (en) * | 1990-03-30 | 1991-12-11 | Fujitsu Ltd | Titanium etching solution |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1090521A (en) | 1994-08-10 |
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