CN102060472A - High-temperature resistant anti-corrosion clay special for acid pressure oxidative leaching high-pressure autoclave and preparation method thereof - Google Patents
High-temperature resistant anti-corrosion clay special for acid pressure oxidative leaching high-pressure autoclave and preparation method thereof Download PDFInfo
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- CN102060472A CN102060472A CN 201010545019 CN201010545019A CN102060472A CN 102060472 A CN102060472 A CN 102060472A CN 201010545019 CN201010545019 CN 201010545019 CN 201010545019 A CN201010545019 A CN 201010545019A CN 102060472 A CN102060472 A CN 102060472A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/10—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C04B26/14—Polyepoxides
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- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Sealing Material Composition (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a high-temperature resistant anti-corrosion clay special for an acid pressure oxidative leaching high-pressure autoclave, which is characterized by being prepared from the following raw materials in percentage by weight: 20-40 percent of vinyl epoxy synthetic resin and 60-80 percent of padding, wherein the padding contains the following raw materials in percentage by weight: silica fume, glass flake, titanium dioxide powder, graphite powder, aluminum oxide and barium sulfate. A preparation method of the high-temperature resistant anti-corrosion clay special for the acid pressure oxidative leaching high-pressure autoclave comprises the following concrete process: adding the vinyl epoxy synthetic resin and the padding into a reaction kettle, heating, and stirring and rubbing in vacuum sufficiently until no dry powder or bubbles exist, and finally obtaining the high-temperature resistant anti-corrosion clay special for the acid pressure oxidative leaching high-pressure autoclave. The clay prepared by the invention can meet the requirements of high temperature resistance, anticorrosion, abrasion resistance, low permeability and extremely high heat stability when carrying out direct acid pressure oxidative leaching on zinc sulfide concentrate in the high-pressure autoclave and is simple in process and convenient to manufacture.
Description
Technical field
The present invention relates to a kind of preparation method of impregnating material, concrete is that oxygen is pressed anticorrosion clay of acidleach autoclave special-purpose high temperature and preparation method thereof.
Background technology
It is to realize industrial application the eighties in 20th century that the direct oxygen of zinc sulfide concentrates is pressed acidleach.The key core equipment of this technology-high pressure leaches still, and this still is a carbon steel bearing shell, and is inner with clay lining cutting acid-resistant thermotolerant ceramic brick formation anticorrosion structure.The clay that is adopted needs heatproof, anti-corrosion, wear-resisting, and has low-permeability and high thermostability.Because working condition is very harsh, find in the research and development process of the test that the clay of tradition use both at home and abroad all is difficult to meet the demands, particularly the gas phase part more is difficult to bear corrosion.
Summary of the invention:
The high pressure of special use leaches the problem that the still clay exists when the objective of the invention is at the existing direct pressurized acid leaching of zinc sulfide concentrates, provides a kind of oxygen to press anticorrosion clay of acidleach autoclave special-purpose high temperature and preparation method thereof.Can satisfy the requirement of autoclave heatproof, anti-corrosion, wear-resisting and low-permeability and high thermostability when the direct pressurized acid leaching of zinc sulfide concentrates by the clay of the present invention preparation.
The technical solution adopted in the present invention is: oxygen is pressed the anticorrosion clay of acidleach autoclave special-purpose high temperature, it is characterized in that it is to be made by following weight percentages:
Vinyl epoxy synthetic resins 20-40% filler 60-80%,
Described filler is made up of following weight percentages:
SILICA FUME 5-50% glass flake 25-50% titanium dioxide powder 0-10%
Graphite Powder 99 0-50% aluminum oxide 0-20% barium sulfate 0-40%.
The granularity of described filler is: SILICA FUME 1000-2000 order, glass flake 60-120 order, titanium dioxide powder 500-800 order, Graphite Powder 99 200-300 order, aluminum oxide 300-600 order, barium sulfate 300-600 order.
Oxygen is pressed the preparation method of the anticorrosion clay of acidleach autoclave special-purpose high temperature, it is characterized in that, concrete technology is as follows:
A) vinyl epoxy synthetic resins and filler are put into reactor, heat to 120 ℃,
B) vacuum stirring is mediated, and vacuum tightness-0.03MPa fully stirs and mediates evenly to not having dry powder, no bubble, for oxygen is pressed the anticorrosion clay of acidleach autoclave special-purpose high temperature.
The high pressure acid leaching process is the green metallurgical technology that country encourages, and has domesticly begun rapid popularization.The direct pressurized acid leaching of zinc sulfide concentrates is to realize industrial application the eighties in 20th century, the characteristics of this technology are: zinc ore concentrate directly adds in the autoclave pressure without roasting, under certain temperature and pure oxygen condition, directly acidleach obtains solution of zinc sulfate, this technology leaching efficiency height is strong to high-iron sphalerite and plumbiferous zinc ore concentrate adaptability.General zinc sulfide concentrates oxygen is pressed extract technology condition, acidity 150-160g/L H
2SO
4, temperature 150-160 ℃, pressure 1.2-2.0MPa, aerating oxygen O
2＞99%, solid-to-liquid ratio 6-7: 1.The key core equipment of this technology is that high pressure leaches still, and this still is the carbon steel bearing shell, and is inner with clay lining cutting acid-resistant thermotolerant ceramic brick formation anticorrosion structure.Clay is that the lining of assurance equipment obtains one of key of good anticorrosion ability.Under the situation that the acid-resistant thermotolerant ceramic brick performance is determined, the clay performance is directly to influence the key factor that can equipment the adaptation condition condition.Because working condition is very harsh in the autoclave, for the employed clay of the anticorrosion lining cutting of autoclave, have good wetting property and bonding strength between requirement and the acid-resistant thermotolerant ceramic brick, clay can have good erosion resistance to strong corrosive medium after solidifying, bear the highly compressed physical strength, oxidation-resistance under pure oxygen, the hot conditions has sufficiently high compactness, to guarantee under the high pressure not by gas-permeable etc.The present invention presses acidleach working condition and specific corrosive medium according to the direct oxygen of zinc sulfide concentrates, selecting vinyl epoxy synthetic resins is basic anticorrosive, again resin there are purpose modification, catalysis, select good corrosion resistance, with the good filler that soaks into and can improve the clay impermeabilisation of resin, filler titanium dioxide powder wherein, Graphite Powder 99, aluminum oxide, barium sulfate are to select to add according to the different sites of the difference of working condition and equipment liner tile.The present invention through the test that studies for a long period of time, designs scientific formula and corresponding preparation technology according to above-mentioned requirements.For making the weave construction densification of clay, no dry powder, no bubble, the method that the present invention adopts vacuum stirring to mediate.Product of the present invention overlaps 40ms with product of the present invention 3 through processes such as clay prescription research, laboratory simulationt test and test in places
3Industry autoclave and 4 cover 100m
3Use on the industry autoclave, through spot inspection after the trial runs in 3 years, the bonding of clay and brick is firm, non-loosening, and the erosion rate of gas phase part is 1～1.5mm/a only, liquid phase part does not have corrosion.Test in place proves, the over-all properties of this clay reaches and surpasses existing clay level.The present invention can adapt to the very harsh working condition of pressurized acid leaching technology, have the characteristics of under high keto sectional pressure condition heatproof, anti-corrosion, wear-resisting, low-permeability and high thermostability, and technology is simple, easy to make.
Embodiment
Oxygen is pressed the preparation method of the anticorrosion clay of acidleach autoclave special-purpose high temperature, it is characterized in that, concrete technology is as follows:
(1) get the raw materials ready by table 1, raw material is the qualified product of buying on the market,
(2) vinyl epoxy synthetic resins is put into reactor, heats to 120 ℃,
(3) vacuum stirring is mediated, synthetic resins and powdery or flaky filler carry out mixing under the vacuum state in the kneader of two-way stirring, vacuum tightness-0.03MPa, fully stir, churning time is 30-40min, each composition of clay after the kneading mixes to no dry powder, bulk, no bubble, for oxygen is pressed the anticorrosion clay of acidleach autoclave special-purpose high temperature.
Table 1
(4) check
The Ministry of Chemical Industry's non-metallic material and equipment quality supervision and inspection center
Check data
NO:20008 is totally 3 pages of page 2
The Ministry of Chemical Industry's non-metallic material and equipment quality supervision and inspection center
Check data
NO:20008 is totally 3 pages of page 3
| 6? | Porosity | ％? | ? | ? | 1.45? | ? |
| 7? | Linear expansivity | ? | ? | ? | 1.90×10 -5 | ? |
| 8? | Gelation time | Minute | ? | ? | 43? | ? |
| 9? | The completely solidified time | My god | ? | ? | 7? | ? |
| ? | ? | ? | ? | ? | ? | ? |
Annotate: "-" expression is weightless; "+" expression weightening finish;
Corrosion resistance nature grade: 1. excellent weight rate: greater than-2.0% less than+2.0%
2. good weight rate :+2.0%-+4.0% or-2.0%--3.0%
3. still anti-corrosion weight rate :+14%-+19% or-2.0%--3.0%
4. not anti-corrosion weight rate: less than-4.0% or greater than+19%.
Claims (3)
1. oxygen is pressed the anticorrosion clay of acidleach autoclave special-purpose high temperature, it is characterized in that it is to be made by following weight percentages:
Vinyl epoxy synthetic resins 20-40% filler 60-80%,
Described filler is made up of following weight percentages:
SILICA FUME 5-50% glass flake 25-50% titanium dioxide powder 0-10%
Graphite Powder 99 0-50% aluminum oxide 0-20% barium sulfate 0-40%.
2. oxygen according to claim 1 is pressed the anticorrosion clay of acidleach autoclave special-purpose high temperature, it is characterized in that the granularity of described filler is: SILICA FUME 1000-2000 order glass flake 60-120 order titanium dioxide powder 500-800 order
Graphite Powder 99 200-300 order aluminum oxide 300-600 order barium sulfate 300-600 order.
3. oxygen is pressed the preparation method of the anticorrosion clay of acidleach autoclave special-purpose high temperature, it is characterized in that, concrete technology is as follows:
A) vinyl epoxy synthetic resins and filler are put into reactor, heat to 120 ℃,
B) vacuum stirring is mediated, and vacuum tightness-0.03MPa fully stirs and mediates evenly to not having dry powder, no bubble, for oxygen is pressed the anticorrosion clay of acidleach autoclave special-purpose high temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010545019 CN102060472B (en) | 2010-11-16 | 2010-11-16 | High-temperature resistant anti-corrosion clay special for acid pressure oxidative leaching high-pressure autoclave and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010545019 CN102060472B (en) | 2010-11-16 | 2010-11-16 | High-temperature resistant anti-corrosion clay special for acid pressure oxidative leaching high-pressure autoclave and preparation method thereof |
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| Publication Number | Publication Date |
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| CN102060472A true CN102060472A (en) | 2011-05-18 |
| CN102060472B CN102060472B (en) | 2013-01-30 |
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| CN 201010545019 Expired - Fee Related CN102060472B (en) | 2010-11-16 | 2010-11-16 | High-temperature resistant anti-corrosion clay special for acid pressure oxidative leaching high-pressure autoclave and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105713485A (en) * | 2016-04-27 | 2016-06-29 | 邹海明 | Wear-resistant anticorrosive cement |
| CN106280285A (en) * | 2016-08-30 | 2017-01-04 | 武汉博奇玉宇环保股份有限公司 | A kind of flame retardant type glass flake plasticine |
| CN110578062A (en) * | 2019-10-18 | 2019-12-17 | 广西森合高新科技股份有限公司 | Non-cyanogen gold extraction leaching device for gold concentrate |
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| CN1339546A (en) * | 2000-08-25 | 2002-03-13 | 栗德发 | Wear resistant daub and its producing method |
| CN1837316A (en) * | 2006-04-18 | 2006-09-27 | 山东久隆高分子材料有限公司 | Interlaminated adhesive for waterproof carpet |
| EP1832553A1 (en) * | 2004-12-10 | 2007-09-12 | National Institute of Advanced Industrial Science and Technology | Clay film product |
| CN101307856A (en) * | 2007-05-15 | 2008-11-19 | 上海华夏化工材料有限公司 | Steel pipeline corrosion proof reinforcing method |
| CN101503616A (en) * | 2009-03-02 | 2009-08-12 | 广东信力特种橡胶制品有限公司 | Sealing daub and preparation thereof |
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2010
- 2010-11-16 CN CN 201010545019 patent/CN102060472B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1339546A (en) * | 2000-08-25 | 2002-03-13 | 栗德发 | Wear resistant daub and its producing method |
| EP1832553A1 (en) * | 2004-12-10 | 2007-09-12 | National Institute of Advanced Industrial Science and Technology | Clay film product |
| CN1837316A (en) * | 2006-04-18 | 2006-09-27 | 山东久隆高分子材料有限公司 | Interlaminated adhesive for waterproof carpet |
| CN101307856A (en) * | 2007-05-15 | 2008-11-19 | 上海华夏化工材料有限公司 | Steel pipeline corrosion proof reinforcing method |
| CN101503616A (en) * | 2009-03-02 | 2009-08-12 | 广东信力特种橡胶制品有限公司 | Sealing daub and preparation thereof |
Non-Patent Citations (1)
| Title |
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| 《湖南化工》 19860930 彭光明 辉绿岩-环氧树脂胶泥在化工设备防腐上的应用 46-48 , 第3期 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105713485A (en) * | 2016-04-27 | 2016-06-29 | 邹海明 | Wear-resistant anticorrosive cement |
| CN106280285A (en) * | 2016-08-30 | 2017-01-04 | 武汉博奇玉宇环保股份有限公司 | A kind of flame retardant type glass flake plasticine |
| CN106280285B (en) * | 2016-08-30 | 2019-01-15 | 武汉博奇玉宇环保股份有限公司 | A kind of flame retardant type glass flake plasticine |
| CN110578062A (en) * | 2019-10-18 | 2019-12-17 | 广西森合高新科技股份有限公司 | Non-cyanogen gold extraction leaching device for gold concentrate |
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| CN102060472B (en) | 2013-01-30 |
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Granted publication date: 20130130 Termination date: 20191116 |