CN1305024A - Process for preparing monocrystal filament of zinc oxide directly from zinc sulfide - Google Patents
Process for preparing monocrystal filament of zinc oxide directly from zinc sulfide Download PDFInfo
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- CN1305024A CN1305024A CN 00120602 CN00120602A CN1305024A CN 1305024 A CN1305024 A CN 1305024A CN 00120602 CN00120602 CN 00120602 CN 00120602 A CN00120602 A CN 00120602A CN 1305024 A CN1305024 A CN 1305024A
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- zinc
- zinc oxide
- single crystal
- crystal body
- oxide single
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Abstract
A process for preparing monocrystal filament of zinc oxide directly from zinc sulfide includes such steps as proportionally mixing zinc sulfide, carbonaceous reducer and lime or calcined dolomite or sodium carbonate, heating to 930-1200 deg.C and reaction for 10-180 min. Its advantages are widely available raw materials, low cost, and wide application range.
Description
Directly preparing the long stapled method of Zinc oxide single crystal body from zinc sulphide, is the preparation method of a kind of metal, alloy, ceramic composite.
The known method for preparing Zinc oxide single crystal body fiber, the one, earlier pure zinc silk arc is melted and sprayed powder, zinc powder carries out after the special processing dry again in the aqueous solution, allows the zinc powder surface form the compactness oxide film, and zinc oxide content reaches 18% in the zinc powder.Surface film oxide can suppress metallic zinc and flow out fast from granule interior, is also controlling the rate of migration of oxygen to zinc granule inside, needed time of bonding crystal growth simultaneously.The 2nd, be mixing raw material with zinc powder and coke powder, be laid on container bottom, be heated to certain temperature in the atmosphere, the metallic zinc steam is at CO
2, CO, O
2Be under certain oxygen gesture in the mixed atmosphere, slow oxidation, deposition growing, thus form Zinc oxide single crystal body fiber.Also have a kind of preparation method to be, ZnO powder and activated carbon powder are placed in the porcelain boat by the suitable proportion mixing.N
2And O
2Mixed gas feed reaction chamber by a certain percentage, temperature is controlled at 1050～1150 ℃, reacts to make Zinc oxide single crystal body macrofiber in 5 hours.The main drawback of these methods is the requirement height to raw material, the process control strictness, and some technology is complicated, so the production cost height.
The objective of the invention is directly to prepare Zinc oxide single crystal body fiber as raw material, prepare the high single crystal fiber of added value, reduce cost, increase economic efficiency with the cheap raw material that is easy to get with zinc sulfide concentrates.
The present invention implements by following technical scheme.
Fig. 1 is a process flow sheet of the present invention.With zinc sulphide (available zinc sulfide concentrates or synthetic zinc sulphide contain zinc 20～70%) powder, powdery carbonaceous reducing agent (available coke, coal, activated carbon or carbon black) and powdered lime, calcined dolomite, yellow soda ash (ZnS: C: CaO: MgO: Na in proportion
2CO
3Mass ratio be 100: 5～36: 0～120: 0～120: 0～212) mix, this compound is placed container bottom, in atmosphere, be heated to 930～1200 ℃, reacted 10～180 minutes, the metallic zinc steam that reaction produces can slow oxidation, the growth of crystal average rate, thereby forms Zinc oxide single crystal body macrofiber.Above-mentioned used raw meal particle size all can at 20～320 orders.
Because the mechanics of Zinc oxide single crystal body fiber and the performance that physical and chemical performance approaches desirable single crystal, thereby this fiber can be widely used as the strongthener of metal, alloy, pottery, rubber, resin, plastic or other material.The conduction of matrix material, antistatic, inhale ripple, sound absorption, vibration damping, also there is extensive use in wear-resisting field such as anti-skidding.
Advantage of the present invention: directly prepare Zinc oxide single crystal body fiber as raw material with zinc sulfide concentrates, because raw material sources are extensive, price is low, production cost is lower than the production cost of existing the whole bag of tricks, other raw material such as coal, lime, rhombspar all are the things that are easy to get, so the inventive method is implemented easily.The single crystal fibre property of producing is better than the product performance that known technology is produced.
Embodiment 1
Getting 100 gram particle degree is 200 purpose flotation zinc sulfide concentrates (containing zinc 58%).Admix 8 gram 120 purpose coke powder and 50 grams, 200 purpose lime, place the bottom of container, the container that compound is housed is put into the high-temperature crucibles electric furnace.Heat in air atmosphere, temperature is controlled at 950～1050 ℃, keeps heating 60 minutes, grows the Zinc oxide single crystal body macrofiber of long 10～40mm, diameter 2～6 μ m in container.The outward appearance line complex shape accumulation body that is white in color, the about 0.01～0.03g/cm of proportion
3, microscopically is observed and the scanning electron microscope film making shows that fiber is the line crystals growth, and fiber and fiber thickness differ, but the diameter of every fiber is almost constant.Product is through X-ray diffraction analysis, and the result is indicated as the Zinc oxide single crystal body macrofiber of based on very high purity.Experimental example 2
Get that 100 grams contain zinc 66.2%, granularity is 180 purpose synthetic ZnS, admix 50 gram 120 purposes calcinings from marble dust and 20 grams, 100 purpose coal dusts; Compound is placed container bottom, the container that compound is housed is put into the high-temperature crucibles electric furnace, heating and temperature control keeps heating 30 minutes at 1000～1050 ℃ in air atmosphere, grows the Zinc oxide single crystal body macrofiber of long 10～30mm, diameter 1～5 μ m in container.
Claims (3)
1. one kind directly prepares the long stapled method of Zinc oxide single crystal body from zinc sulphide, it is characterized in that: will contain the zinc sulphide of zinc 20～70% and carbonaceous reducing agent, lime, calcined dolomite, yellow soda ash behind batching, mixing, pack into container, heating in air atmosphere, reaction, finally obtain Zinc oxide single crystal body macrofiber
1) proportioning of material: ZnS: C: CaO:MgO: Na
2CO
3Mass ratio be 100: 5～36: 0～120: 0～120: 0～212;
2) Heating temperature is 930～1200 ℃;
3) 10～180 minutes reaction times;
4) raw material granularity is 20～320 orders.
2. according to claim 1ly directly prepare the long stapled method of Zinc oxide single crystal body from zinc sulphide, it is characterized in that: lime can replace with calcined dolomite (its composition mainly is calcium oxide and magnesium oxide), also can replace with yellow soda ash.
3. according to claim 1ly directly prepare the long stapled method of Zinc oxide single crystal body from zinc sulphide, it is characterized in that: carbonaceous reducing agent is coke, coal, activated carbon, carbon black.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00120602A CN1122731C (en) | 2000-12-16 | 2000-12-16 | Process for preparing monocrystal filament of zinc oxide directly from zinc sulfide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00120602A CN1122731C (en) | 2000-12-16 | 2000-12-16 | Process for preparing monocrystal filament of zinc oxide directly from zinc sulfide |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1305024A true CN1305024A (en) | 2001-07-25 |
| CN1122731C CN1122731C (en) | 2003-10-01 |
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ID=4588280
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00120602A Expired - Fee Related CN1122731C (en) | 2000-12-16 | 2000-12-16 | Process for preparing monocrystal filament of zinc oxide directly from zinc sulfide |
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| Country | Link |
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| CN (1) | CN1122731C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1296702C (en) * | 2003-09-30 | 2007-01-24 | 鸿富锦精密工业（深圳）有限公司 | Zinc oxide gas sensing device |
| CN101607689B (en) * | 2008-06-17 | 2010-12-22 | 国家纳米科学中心 | Zinc oxide and zinc sulfide nano-belt composite heterogenous junction material and preparation method |
| CN108505120A (en) * | 2018-04-04 | 2018-09-07 | 慈溪市嘉和新材料科技有限公司 | The production technology that zinc oxide composite crystal must be synthesized disposably |
| CN114150380A (en) * | 2021-10-29 | 2022-03-08 | 中广核研究院有限公司 | Zinc oxide crystal and preparation method thereof |
-
2000
- 2000-12-16 CN CN00120602A patent/CN1122731C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1296702C (en) * | 2003-09-30 | 2007-01-24 | 鸿富锦精密工业（深圳）有限公司 | Zinc oxide gas sensing device |
| CN101607689B (en) * | 2008-06-17 | 2010-12-22 | 国家纳米科学中心 | Zinc oxide and zinc sulfide nano-belt composite heterogenous junction material and preparation method |
| CN108505120A (en) * | 2018-04-04 | 2018-09-07 | 慈溪市嘉和新材料科技有限公司 | The production technology that zinc oxide composite crystal must be synthesized disposably |
| CN114150380A (en) * | 2021-10-29 | 2022-03-08 | 中广核研究院有限公司 | Zinc oxide crystal and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN1122731C (en) | 2003-10-01 |
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