CN1552788A - High temperature conductive binding material for aluminium electrolysis - Google Patents
High temperature conductive binding material for aluminium electrolysis Download PDFInfo
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- CN1552788A CN1552788A CNA031405215A CN03140521A CN1552788A CN 1552788 A CN1552788 A CN 1552788A CN A031405215 A CNA031405215 A CN A031405215A CN 03140521 A CN03140521 A CN 03140521A CN 1552788 A CN1552788 A CN 1552788A
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- 238000005868 electrolysis reaction Methods 0.000 title claims abstract description 22
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 21
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 239000004411 aluminium Substances 0.000 title claims abstract description 16
- 239000000463 material Substances 0.000 title claims description 17
- 239000000843 powder Substances 0.000 claims abstract description 55
- 239000011347 resin Substances 0.000 claims abstract description 45
- 229920005989 resin Polymers 0.000 claims abstract description 41
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 18
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 5
- 239000002904 solvent Substances 0.000 claims abstract description 5
- 239000000126 substance Substances 0.000 claims description 56
- 239000011159 matrix material Substances 0.000 claims description 38
- 239000004593 Epoxy Substances 0.000 claims description 30
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 30
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 30
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 20
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 20
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 20
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 20
- 239000004917 carbon fiber Substances 0.000 claims description 20
- 239000000203 mixture Substances 0.000 claims description 15
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- PZAGQUOSOTUKEC-UHFFFAOYSA-N acetic acid;sulfuric acid Chemical compound CC(O)=O.OS(O)(=O)=O PZAGQUOSOTUKEC-UHFFFAOYSA-N 0.000 claims description 10
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 10
- 239000010426 asphalt Substances 0.000 claims description 10
- 239000011280 coal tar Substances 0.000 claims description 10
- 229920003987 resole Polymers 0.000 claims description 10
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 claims description 10
- YLQBMQCUIZJEEH-UHFFFAOYSA-N Furan Chemical compound C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 8
- 239000000654 additive Substances 0.000 claims description 8
- 230000000996 additive effect Effects 0.000 claims description 8
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 claims description 8
- 239000003830 anthracite Substances 0.000 claims description 8
- 239000000571 coke Substances 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 239000000919 ceramic Substances 0.000 claims description 5
- 239000003292 glue Substances 0.000 claims description 4
- 229910052719 titanium Inorganic materials 0.000 claims description 4
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 2
- 229910052804 chromium Inorganic materials 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 125000002541 furyl group Chemical group 0.000 claims description 2
- 229910052737 gold Inorganic materials 0.000 claims description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 229910052748 manganese Inorganic materials 0.000 claims description 2
- 239000011707 mineral Substances 0.000 claims description 2
- 229910052750 molybdenum Inorganic materials 0.000 claims description 2
- 229910052758 niobium Inorganic materials 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 239000006253 pitch coke Substances 0.000 claims description 2
- 229910052697 platinum Inorganic materials 0.000 claims description 2
- 229910052709 silver Inorganic materials 0.000 claims description 2
- 229910052715 tantalum Inorganic materials 0.000 claims description 2
- 229910052721 tungsten Inorganic materials 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 abstract description 3
- 230000001070 adhesive effect Effects 0.000 abstract description 3
- 230000035939 shock Effects 0.000 abstract description 2
- QYEXBYZXHDUPRC-UHFFFAOYSA-N B#[Ti]#B Chemical compound B#[Ti]#B QYEXBYZXHDUPRC-UHFFFAOYSA-N 0.000 abstract 1
- 229910033181 TiB2 Inorganic materials 0.000 abstract 1
- 239000012758 reinforcing additive Substances 0.000 abstract 1
- 239000012744 reinforcing agent Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 8
- 239000002562 thickening agent Substances 0.000 description 7
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 4
- 229910000805 Pig iron Inorganic materials 0.000 description 4
- 239000011195 cermet Substances 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 4
- 229910052698 phosphorus Inorganic materials 0.000 description 4
- 239000011574 phosphorus Substances 0.000 description 4
- 229910000754 Wrought iron Inorganic materials 0.000 description 3
- 238000005266 casting Methods 0.000 description 3
- 239000003610 charcoal Substances 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 3
- 229910044991 metal oxide Inorganic materials 0.000 description 3
- 150000004706 metal oxides Chemical class 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000011224 oxide ceramic Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical compound [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 2
- 239000010405 anode material Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 description 1
- RQMIWLMVTCKXAQ-UHFFFAOYSA-N [AlH3].[C] Chemical compound [AlH3].[C] RQMIWLMVTCKXAQ-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000010406 cathode material Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
Abstract
An electric conducting refractory adhesive for the aluminium electrolysis, especially for carbon anode, carbon cathode, inertial anode and wettable TiB2 cathode, is prepared from electric conducting powder, resin adhesive, solidifying agent, solvent, reinforcing agent and additives. It has high adhesion, electric conductivity, heat shock resistance and high-temp mechanical performance.
Description
Technical field:
The present invention is relevant with electrolysis of aluminum, particularly electrolysis of aluminum carbon annode, carbon anode/cathode, inert anode, TiB
2The connection of wettability negative electrode, and they are connected the high-temperature electric conduction matrix material of usefulness with metallic conductor, it is applicable to that also the conduction of storeroom under other hot environments connects.
Background technology:
At present, the cathode and anode material of electrolysis of aluminum employing all is a carbon materials.Bond by the casting of the phosphorus pig iron between anode block and conduction rod iron; Adopt carbonaceous thickener bonding between the continous way prebaked anode; Adopt the carbonaceous thickener to make firm by ramming or phosphorus pig iron casting bonding between cathode carbon pieces and negative electrode conduction rod iron; Thereby make and closely be connected between charcoal piece and charcoal piece or rod iron and play electric action.
Adopt the existing fused salt aluminum electrolysis process of carbon annode and carbon anode/cathode to have energy consumption height, big, the problems such as cost is high, environmental pollution is serious, production instability of carbon consumption.Adopt inert anode and TiB
2The novel electrolytic bath of wettability negative electrode and electrolysis novel process thereof are expected to address the above problem, and the existing production technique of reform realizes the less energy-consumption of Aluminium Electrolysis process, targets such as pollution-free and low cost.Yet inert anode material mainly contains metal oxide ceramic, alloy anode and sintering metal three classes, and wherein, except that alloy anode, all there is the problem that is connected difficulty with metal guide rod in metal oxide ceramic with cermet inert anode; TiB
2The wettability negative electrode can be divided into TiB
2Coating, TiB
2-C matrix material and TiB
2Base composite ceramic three classes, wherein TiB
2-C matrix material and TiB
2Base composite ceramic also exists and is connected this difficult problem of difficulty with metal guide rod.
Summary of the invention:
Purpose of the present invention is developed exactly has satisfactory electrical conductivity, and cohesive strength is high can be used for inert anode and TiB
2The high-temperature electric conduction matrix material that the wettability negative electrode is connected with the respective metal guide rod replaces at present used anode carbon block and is connected with anode steel jaw (rod) to be connected with cathode steel bar with cathode carbon pieces adhesive for connection, cathode carbon pieces with carbonaceous thickener, cathode carbon pieces with the casting phosphorus pig iron or carbonaceous thickener, continous way pre-baked anode carbon blocks bonding and uses cast the phosphorus pig iron or carbonaceous ramming paste etc.; Be connected TiB as inert anode and anode rod
2The wettability negative electrode is used the high-temperature electric conduction matrix material with being connected of cathode steel bar; That the electrode of handling with its is produced in the aluminum electrolysis process process is stable, energy consumption reduction, environmental pollution reduce.
The designed used for aluminium electrolysis high-temperature electric conduction matrix material of the present invention is characterized in that: paste formula is as shown in table 1.
The paste formula of table 1 used for aluminium electrolysis high-temperature electric conduction matrix material
| Title | Specification | Quality percentage composition (%) |
| The conducting function material powder | -10μm | ????5～65 |
| The conducting function material powder | 10～149μm | ????0～15 |
| The conducting function material powder | 149～250μm | ????0～5 |
| Furane resin | Viscosity-average molecular weight 4000～8000 | ????3～15 |
| Resol | Viscosity-average molecular weight 1000～3000 | ????0～15 |
| Resins, epoxy | E-51 | ????1～8 |
| Resins, epoxy | E-44 | ????0～5 |
| Resins, epoxy | E-42 | ????0～2 |
| Ethyl acetate | Chemical pure | ????1～5 |
| Title | Specification | Quality percentage composition (%) |
| Tosic acid | Chemical pure | ??0.5～2 |
| Sulfuric acid acetate | Chemical pure | ??0.3～1.6 |
| Phosphoric acid second fat | Chemical pure | ??0.2～1.4 |
| H 2SO 4 | Chemical pure, 95mass% | ??0～1 |
| H 3PO 4 | Chemical pure, 95mass% | ??0～1 |
| Ethanol | Chemical pure | ??0～8 |
| Acetone | Chemical pure | ??0～8 |
| Carbon fiber | Single diameter 6～7 μ m | ??0.5～1 |
| Length 3～5cm | ||
| Carbon fiber powder | -74μm | ??0.8～1.5 |
| Coal tar | ??0～1.5 | |
| The oxidized bitumen powder | -149μm | ??0～8 |
The paste formula of above-mentioned high-temperature electric conduction matrix material comprises conducting function material powder, resin glue, solidifying agent, solvent, enhancement additive and other additive etc., wherein
I. the conducting function material powder is at least a in following three kinds:
1. metal-powder: comprise Cu, Fe, Ni, Co, Cr, Mn, Ti, Nb, Ta, W, Mo, Ti, Ag, Au, Pt metal-powder;
2. conductivity ceramics powder: comprise TiB
2, ZrB
2, TiC, ZrC powder;
3. Graphite Powder 99 and other carbonaceous powder: comprise refinery coke, metallurgical coke, pitch coke, calcined anthracite powder;
And divide three kinds of different grain sizes, particle diameter is respectively: less than 10 μ m, 10～149 μ m and 149～250 μ m;
II. resin glue is furane resin, resol, E
51Resins, epoxy, E
44Resins, epoxy, E
42At least a in the Resins, epoxy;
III. solidifying agent is ethyl acetate, tosic acid, phosphoric acid second fat, sulfuric acid acetate and mineral acid, comprises H
2SO
4, H
3PO
4In at least a;
IV. solvent is at least a in ethanol and the acetone;
V. enhancement additive comprises carbon fiber and carbon fiber powder etc.;
Other additive is at least a in coal tar and the oxidized bitumen powder.
The advantage and the positively effect of invention of the present invention show:
The high-temperature electric conduction matrix material possesses good cohesive strength, electroconductibility, mechanical behavior under high temperature and thermal shock resistance.
The high-temperature electric conduction matrix material has been realized solidifying under the normal temperature, required heating installation and the manpower and materials of hot setting have been removed from, reduced application cost, be widely used in various high-temperature electric conduction storerooms under the high temperature conditions such as Aluminium Electrolysis connection and with metallic conductor between be connected.
The high-temperature electric conduction matrix material is respectively at anode carbon block for aluminium electrolysis, cathode carbon pieces, metal oxide ceramic inert anode, cermet inert anode, TiB
2Wettability negative electrode: comprise TiB
2-C matrix material and TiB
2The physics-chem characteristic of high temperature electro-conductive materials such as base composite ceramic, anode steel jaw or guide rod and cathode steel bar and being equipped with; Adjust its hot expansibility according to concrete application, keep good and hot matching bonded high-temperature electric conduction material, guaranteed that matrix material is in the high temperature use, not stratified, do not ftracture, do not come off, produce and stablize, energy consumption reduces, and environmental pollution reduces.
Embodiment:
Embodiment 1: a kind of continous way prebaked anode carbon piece connects uses the high-temperature electric conduction matrix material.The paste formula of high-temperature electric conduction matrix material sees Table 2.
Table 2 continous way prebaked anode carbon piece connects the paste formula example with the high-temperature electric conduction matrix material
| Title | Specification | Quality percentage composition (%) |
| Metal Cu powder | -10μm | ????2.5 |
| Graphite Powder 99 | -10μm | ????31 |
| Refinery coke | 10～149μm | ????14.5 |
| Refinery coke | 149～250μm | ????5 |
| Furane resin | Viscosity-average molecular weight 4000～8000 | ????8 |
| Resol | Viscosity-average molecular weight 1000～3000 | ????2 |
| Resins, epoxy | E-51 | ????5 |
| Resins, epoxy | E-44 | ????3 |
| Resins, epoxy | E-42 | ????2 |
| Ethyl acetate | Chemical pure | ????2.3 |
| Tosic acid | Chemical pure | ????1.7 |
| Sulfuric acid acetate | Chemical pure | ????1.0 |
| Phosphoric acid second fat | Chemical pure | ????1.0 |
| H 2SO 4 | Chemical pure, 95mass% | ????0.3 |
| H 3PO 4 | Chemical pure, 95mass% | ????0.2 |
| Ethanol | Chemical pure | ????5 |
| Acetone | Chemical pure | ????5 |
| Carbon fiber | Single diameter 6～7 μ m | ????1 |
| Title | Specification | Quality percentage composition (%) |
| Length 3～5cm | ||
| Carbon fiber powder | -74μm | ????1 |
| Coal tar | ????1.5 | |
| The oxidized bitumen powder | -149μm | ????7 |
Each mixing of materials in the table 2 is become thickener, connect the continous way pre-baked anode carbon blocks, charcoal interblock cohesive strength is 3MPa, greater than the tensile strength of used for aluminium electrolysis pre-baked anode carbon blocks; Along with the rising of temperature, the resistivity of matrix material sharply descends, and 25 ℃ of following resistivity are 5 * 10
-3Ω m, 150 ℃ of following resistivity are 3 * 10
-4Ω m, 400 ℃ of following resistivity are 4 * 10
-5Ω m (suitable with the resistivity of pre-baked anode carbon blocks under the same terms), 800 ℃ of following resistivity are 1.9 * 10
-5Ω m is lower than the resistivity of pre-baked anode carbon blocks under the same terms; The conductivity of continous way pre-baked anode carbon blocks under working conditions is good, and the junction flawless does not come off.
Embodiment 2: a kind of inert anode is connected with metal guide rod uses the high-temperature electric conduction matrix material.
Table 3 inert anode is connected the paste formula example with the high-temperature electric conduction matrix material with metal guide rod
| Title | Specification | Quality percentage composition (%) |
| Metal Cu powder | -10μm | ????30 |
| Metal Ni powder | -10μm | ????12 |
| Metal Cu powder | 10～149μm | ????14.5 |
| Title | Specification | Quality percentage composition (%) |
| Metal Cu powder | 149～250μm | ????4.9 |
| Furane resin | Viscosity-average molecular weight 4000～8000 | ????5.0 |
| Resol | Viscosity-average molecular weight 1000～3000 | ????10 |
| Resins, epoxy | E-51 | ????3.0 |
| Resins, epoxy | E-44 | ????2.0 |
| Resins, epoxy | E-42 | ????1.2 |
| Ethyl acetate | Chemical pure | ????2.0 |
| Tosic acid | Chemical pure | ????0.5 |
| Sulfuric acid acetate | Chemical pure | ????0.5 |
| Phosphoric acid second fat | Chemical pure | ????0.4 |
| Ethanol | Chemical pure | ????3.6 |
| Acetone | Chemical pure | ????3.1 |
| Carbon fiber | Single diameter 6～7 μ m | ????0.5 |
| Length 3～5cm | ||
| Carbon fiber powder | -74μm | ????0.6 |
| Coal tar | ????0.5 | |
| The oxidized bitumen powder | -149μm | ????5.7 |
Each mixing of materials in the table 3 is become thickener, be applied in the NiFe that contains 10wt%Ni
2O
4The junction of/Ni cermet inert anode and stainless steel guide rod behind the self-vulcanizing 2h, promptly possesses good cohesive strength; Then the inert anode sample is hung on test aluminium cell top, in high temperature resistance furnace, be warmed up to 970 ℃ together, the binding agent generation charing of high-temperature electric conduction matrix material in this temperature-rise period in company with experimental cell; After treating electrolyte melting, inert anode is inserted ionogen, 1A/cm
2Under the electrolysis 10h that switches on, test the bath voltage of electrolyzer simultaneously.In whole electrolytic process, bath voltage is substantially constant at 2.7V, illustrates that the conductivity of used high-temperature electric conduction matrix material is good.After electrolysis is finished, directly taking out the anode sample cools off in air, found that the junction flawless of cermet inert anode and stainless steel guide rod, do not come off, show that used high-temperature electric conduction matrix material has good cohesive strength, heat-shock resistance and mechanical behavior under high temperature.
Embodiment 3: a kind of cathode carbon pieces is connected with cathode steel bar uses the high-temperature electric conduction matrix material.
Table 4 cathode carbon pieces is connected the paste formula example with the high-temperature electric conduction matrix material with cathode steel bar
| Title | Specification | Quality percentage composition (%) |
| Graphite Powder 99 | -10μm | ????12 |
| Metal Fe powder | -10μm | ????8 |
| Electric calcined anthracite | -10μm | ????12 |
| Electric calcined anthracite | 10～149μm | ????11 |
| Electric calcined anthracite | 149～250μm | ????4.2 |
| Furane resin | Viscosity-average molecular weight 4000～8000 | ????15 |
| Resol | Viscosity-average molecular weight 1000～3000 | ????5 |
| Resins, epoxy | E-51 | ????1 |
| Title | Specification | Quality percentage composition (%) |
| Resins, epoxy | E-44 | ????5 |
| Resins, epoxy | E-42 | ????2 |
| Ethyl acetate | Chemical pure | ????2.0 |
| Tosic acid | Chemical pure | ????1.6 |
| Sulfuric acid acetate | Chemical pure | ????1.3 |
| Phosphoric acid second fat | Chemical pure | ????1.2 |
| Ethanol | Chemical pure | ????3.4 |
| Acetone | Chemical pure | ????3.6 |
| Carbon fiber | Single diameter 6～7 μ m | ????1.0 |
| Length 3～5cm | ||
| Carbon fiber powder | -74μm | ????1.2 |
| Coal tar | ????1.5 | |
| The oxidized bitumen powder | -149μm | ????8 |
Each mixing of materials in the table 4 is become thickener, be used for being connected of cathode carbon pieces and cathode steel bar, behind the self-vulcanizing 2h, be used for building by laying bricks or stones of aluminium cell.In roasting and starting aluminum electrolytic cell and the normal productive process, cathode current distribution is even, do not see that cathode steel bar is rubescent, the temperature of cathode steel bar and negative busbar junction is 100～250 ℃, the conductivity that shows used high-temperature electric conduction matrix material is good, defectives such as material internal flawless, layering under the working conditions.
Claims (4)
1. used for aluminium electrolysis high-temperature electric conduction matrix material is characterized in that:
The paste formula of table 1 used for aluminium electrolysis high-temperature electric conduction matrix material
Title Specification Quality percentage composition (%)
The conducting function material powder -10μm ????5～65
The conducting function material powder 10～149μm ????0～15
The conducting function material powder 149～250μm ????0～5
Furane resin Viscosity-average molecular weight 4000～8000 ????3～15
Resol Viscosity-average molecular weight 1000～3000 ????0～15
Resins, epoxy E-51 ????1～8
Resins, epoxy E-44 ????0～5
Resins, epoxy E-42 ????0～2
Ethyl acetate Chemical pure ????1～5
Tosic acid Chemical pure ????0.5～2
Sulfuric acid acetate Chemical pure ????0.3～1.6
Phosphoric acid second fat Chemical pure ????0.2～1.4
H
2SO
4 Chemical pure, 95mass% ????0～1
H
3PO
4 Chemical pure, 95mass% ????0～1
Title Specification Quality percentage composition (%)
Ethanol Chemical pure ????0～8
Acetone Chemical pure ????0～8
Carbon fiber Single diameter 6～7 μ m ????0.5～1
Length 3～5cm
Carbon fiber powder -74μm ????0.8～1.5
Coal tar ????0～1.5
The oxidized bitumen powder -149μm ????0～8
The paste formula of above-mentioned high-temperature electric conduction matrix material comprises conducting function material powder, resin glue, solidifying agent, solvent, enhancement additive and other additive, wherein
I. the conducting function material powder is divided at least a in following three kinds:
1. metal-powder: comprise Cu, Fe, Ni, Co, Cr, Mn, Ti, Nb, Ta, W, Mo, Ti, Ag, Au, Pt metal-powder;
2. conductivity ceramics powder: comprise TiB
2, ZrB
2, TiC, ZrC powder;
3. Graphite Powder 99 and other carbonaceous powder: comprise refinery coke, metallurgical coke, pitch coke, calcined anthracite powder;
And divide three kinds of different grain sizes, particle diameter is respectively: less than 10 μ m, 10～149 μ m and 149～250 μ m;
II. resin glue is furane resin, resol, E
51Resins, epoxy, E
44Resins, epoxy, E
42At least a in the Resins, epoxy;
III. solidifying agent is ethyl acetate, tosic acid, phosphoric acid second fat, sulfuric acid acetate and mineral acid, comprises H
2SO
4, H
3PO
4In at least a;
IV. solvent is at least a in ethanol and the acetone;
V. enhancement additive comprises carbon fiber and carbon fiber powder etc.;
Other additive is at least a in coal tar and the oxidized bitumen powder.
2. according to claim 1 used for aluminium electrolysis high-temperature electric conduction matrix material, it is characterized in that: continous way prebaked anode carbon piece connect with the paste formula of high-temperature electric conduction matrix material as
Table 2 continous way prebaked anode carbon piece connects the paste formula example with the high-temperature electric conduction matrix material
Title Specification Quality percentage composition (%)
Metal Cu powder -10μm ????2.5
Graphite Powder 99 -10μm ????31
Refinery coke 10～149μm ????14.5
Refinery coke 149～250μm ????5
Furane resin Viscosity-average molecular weight 4000～8000 ????8
Resol Viscosity-average molecular weight 1000～3000 ????2
Resins, epoxy E-51 ????5
Resins, epoxy E-44 ????3
Resins, epoxy E-42 ????2
Ethyl acetate Chemical pure ????2.3
Tosic acid Chemical pure ????1.7
Sulfuric acid acetate Chemical pure ????1.0
Phosphoric acid second fat Chemical pure ????1.0
H
2SO
4 Chemical pure, 95mass% ????0.3
Title Specification Quality percentage composition (%)
H
3PO
4 Chemical pure, 95mass% ????0.2
Ethanol Chemical pure ????5
Acetone Chemical pure ????5
Carbon fiber Single diameter 6～7 μ m ????1
Length 3～5cm
Carbon fiber powder -74μm ????1
Coal tar ????1.5
The oxidized bitumen powder -149μm ????7
3. according to claim 1 used for aluminium electrolysis high-temperature electric conduction matrix material, it is characterized in that: a kind of inert anode is connected with metal guide rod with high-temperature electric conduction matrix material paste formula and is
Table 3 inert anode is connected the paste formula example with the high-temperature electric conduction matrix material with metal guide rod
Title Specification Quality percentage composition (%)
Metal Cu powder -10μm ????30
Metal Ni powder -10μm ????12
Metal Cu powder 10～149μm ????14.5
Metal Cu powder 149～250μm ????4.9
Furane resin Viscosity-average molecular weight 4000～8000 ????5.0
Title Specification Quality percentage composition (%)
Resol Viscosity-average molecular weight 1000～3000 ????10
Resins, epoxy E-51 ????3.0
Resins, epoxy E-44 ????2.0
Resins, epoxy E-42 ????1.2
Ethyl acetate Chemical pure ????2.0
Tosic acid Chemical pure ????0.5
Sulfuric acid acetate Chemical pure ????0.5
Phosphoric acid second fat Chemical pure ????0.4
Ethanol Chemical pure ????3.6
Acetone Chemical pure ????3.1
Carbon fiber Single diameter 6～7 μ m ????0.5
Length 3～5cm
Carbon fiber powder -74μm ????0.6
Coal tar ????0.5
The oxidized bitumen powder -149μm ????5.7
4. according to claim 1 used for aluminium electrolysis high-temperature electric conduction matrix material, it is characterized in that: a kind of cathode carbon pieces is connected with cathode steel bar with high-temperature electric conduction matrix material paste formula and is
Table 4 cathode carbon pieces is connected the paste formula example with the high-temperature electric conduction matrix material with cathode steel bar
Title Specification Quality percentage composition (%)
Graphite Powder 99 -10μm ????12
Metal Fe powder -10μm ????8
Electric calcined anthracite -10μm ????12
Electric calcined anthracite 10～149μm ????11
Electric calcined anthracite 149～250μm ????4.2
Furane resin Viscosity-average molecular weight 4000～8000 ????15
Resol Viscosity-average molecular weight 1000～3000 ????5
Resins, epoxy E-51 ????1
Resins, epoxy E-44 ????5
Resins, epoxy E-42 ????2
Ethyl acetate Chemical pure ????2.0
Tosic acid Chemical pure ????1.6
Sulfuric acid acetate Chemical pure ????1.3
Phosphoric acid second fat Chemical pure ????1.2
Ethanol Chemical pure ????3.4
Acetone Chemical pure ????3.6
Carbon fiber Single diameter 6～7 μ m ????1.0
Length 3～5cm
Carbon fiber powder -74μm ????1.2
Coal tar ????1.5
The oxidized bitumen powder -149μm ????8
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