CN110156029A - Red mud Chemical Physics integrated conduct method - Google Patents
Red mud Chemical Physics integrated conduct method Download PDFInfo
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- CN110156029A CN110156029A CN201910350765.0A CN201910350765A CN110156029A CN 110156029 A CN110156029 A CN 110156029A CN 201910350765 A CN201910350765 A CN 201910350765A CN 110156029 A CN110156029 A CN 110156029A
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- red mud
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- filtrate
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- 239000000126 substance Substances 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000006243 chemical reaction Methods 0.000 claims abstract description 25
- 238000003756 stirring Methods 0.000 claims abstract description 23
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000002699 waste material Substances 0.000 claims abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract description 11
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 10
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 9
- 150000004820 halides Chemical class 0.000 claims abstract description 9
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 8
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims abstract description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000012190 activator Substances 0.000 claims abstract description 5
- 229910052742 iron Inorganic materials 0.000 claims abstract description 5
- 238000000926 separation method Methods 0.000 claims abstract description 5
- 239000011734 sodium Substances 0.000 claims abstract description 5
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 5
- 239000010936 titanium Substances 0.000 claims abstract description 5
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 5
- 239000000706 filtrate Substances 0.000 claims description 18
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 15
- 230000001376 precipitating effect Effects 0.000 claims description 13
- 238000001914 filtration Methods 0.000 claims description 10
- 239000007791 liquid phase Substances 0.000 claims description 9
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000000047 product Substances 0.000 claims description 6
- 238000005406 washing Methods 0.000 claims description 6
- 238000000354 decomposition reaction Methods 0.000 claims description 4
- 239000012071 phase Substances 0.000 claims description 4
- OQVYMXCRDHDTTH-UHFFFAOYSA-N 4-(diethoxyphosphorylmethyl)-2-[4-(diethoxyphosphorylmethyl)pyridin-2-yl]pyridine Chemical compound CCOP(=O)(OCC)CC1=CC=NC(C=2N=CC=C(CP(=O)(OCC)OCC)C=2)=C1 OQVYMXCRDHDTTH-UHFFFAOYSA-N 0.000 claims description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 3
- 238000001354 calcination Methods 0.000 claims description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 claims description 3
- 239000001095 magnesium carbonate Substances 0.000 claims description 3
- 229910000021 magnesium carbonate Inorganic materials 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 238000003746 solid phase reaction Methods 0.000 claims 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 abstract description 4
- 239000011575 calcium Substances 0.000 abstract description 4
- 229910052791 calcium Inorganic materials 0.000 abstract description 4
- 239000007787 solid Substances 0.000 abstract description 4
- 229910021532 Calcite Inorganic materials 0.000 abstract description 3
- 229910052681 coesite Inorganic materials 0.000 abstract description 3
- 229910052906 cristobalite Inorganic materials 0.000 abstract description 3
- 229910052682 stishovite Inorganic materials 0.000 abstract description 3
- 229910052905 tridymite Inorganic materials 0.000 abstract description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 abstract description 2
- 239000004411 aluminium Substances 0.000 abstract description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052782 aluminium Inorganic materials 0.000 abstract description 2
- 239000011777 magnesium Substances 0.000 abstract description 2
- 229910052749 magnesium Inorganic materials 0.000 abstract description 2
- 239000011499 joint compound Substances 0.000 description 29
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical group [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 239000007790 solid phase Substances 0.000 description 2
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910001570 bauxite Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 150000004965 peroxy acids Chemical class 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/113—Silicon oxides; Hydrates thereof
- C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
- C01B33/18—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof
- C01B33/186—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof from or via fluosilicic acid or salts thereof by a wet process
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/18—Carbonates
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F5/00—Compounds of magnesium
- C01F5/24—Magnesium carbonates
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F7/00—Compounds of aluminium
- C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
- C01G49/02—Oxides; Hydroxides
-
- 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
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
-
- 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
- C04B7/00—Hydraulic cements
- C04B7/14—Cements containing slag
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
Abstract
Red mud Chemical Physics integrated conduct method, belong to the applied technical field of red mud, the method for being designed to provide a kind of comprehensive utilization of red mud for not generating the three wastes, the present invention use concentration for 95% the concentrated sulfuric acid, adding halide is activator, is added in reaction kettle and heats, red mud is continuously added to stir, (1) original highly basic is removed, (2) make SiO2(aragonite and calcite) generates gas, obtain gas-phase silica, (3) it is formed and is separated by solid-liquid separation using filter, form 3 kinds of products, solid iron, calcium, waste residue evolution, the elements such as liquid aluminium, titanium, magnesium, calcium, sodium retain, and make that solid, valuable substance gradually separates in liquid, and produce corresponding product contribution society.
Description
Technical field
The invention belongs to the applied technical fields of red mud, and in particular to a kind of red mud Chemical Physics integrated conduct method.
Background technique
Red mud is to produce the fines strong basicity solid waste generated in alumina process, China by raw material of bauxite
It is alumina producing big country, still, currently, the comprehensive utilization ratio of red mud is only 4%, it is red with the growth year by year of aluminium oxide yield
The annual output of mud will be also continuously increased.
The main component of red mud is SiO2(aragonite and calcite), accounts for 50-70%, followed by Al2O3, account for about 15-25%,
Fe2O3, account for about 6-11%, CaO, account for about 10%, Na2O accounts for about 3-7%, TiO2, account for about 3-5%, MgO, account for about 0-5%, and a small amount of
Other substances are a kind of ingredient complexes, are not easy the industrial residue utilized.Red mud is because it is with strong basicity, large specific surface area,
Various components are wrapped up mutually, the features such as embedding cloth, its comprehensive utilization is caused to be difficult to use for reference the technique of some maturations of other field, skill
Art and equipment, there has been no the methods of effective red mud utilized at present.
Summary of the invention
The present invention problem difficult for the comprehensive utilization of current red mud, provides a kind of red mud Chemical Physics integrated treatment side
Method, the present invention use concentration for 95% concentrated sulfuric acid, and adding halide is activator, is added in reaction kettle and heats, red mud is continuously added
Enter stirring, (1) removes original highly basic, and (2) make SiO2(aragonite and calcite) generates gas, obtains gas-phase silica, (3) pass through again
Filtering, which is formed, to be separated by solid-liquid separation, and 3 kinds of products, solid iron, calcium, waste residue evolution are formed, and the elements such as liquid aluminium, titanium, magnesium, calcium, sodium retain,
Make that solid, valuable substance gradually separates in liquid, and produces corresponding product contribution society.
The present invention adopts the following technical scheme:
A kind of red mud Chemical Physics integrated conduct method, includes the following steps:
Silica is produced in the first step, red mud decomposition
Red mud is added in the acid-resistant reacting kettle of band stirring, concentration is added as 95% concentrated sulfuric acid, wherein red mud and the concentrated sulfuric acid
Mass ratio is 1:2, and halide is added into reaction kettle as activator, wherein the mass ratio of red mud and halide is 1:1.5,
Under conditions of 80-120 DEG C, stirs to fully reacting, the gas of generation is entered into vacuum pump set filtering and washing and obtains mass parts
Number is the HIGH-PURITY SILICON product of 40-50%, generates gas-phase silica；
Second step, the separation of solid phase
Reaction kettle is added in the liquid phase that liquid in reaction kettle is obtained by filtration, and adjustment pH value is 7, makes the waste point in iron and liquid phase
From filtrate A is obtained by filtration；
Third step, contained substance gradually separates in liquid phase
(1) reaction kettle stirring is added in the filtrate A for obtaining second step, is heated to 80-120 DEG C, and increasing potassium manganate adjustment pH is 7-
8, it is precipitated, precipitating is filtered, 10% iron oxide and liquor B is obtained；
(2) reaction kettle stirring is added in liquor B, is heated to 120-140 DEG C, adjustment pH is 7.5, evolution sodium metaaluminate precipitating, mistake
Filter, obtains the aluminium oxide and liquor C of 15-25% for filter residue calcination；
(3) reaction kettle stirring being added in liquor C, is heated to 80-120 DEG C, adjustment pH is 2-3, is precipitated, precipitating is filtered,
Obtained filter residue and filtrate D, filter residue and drying obtain 3% titanium fine powder；
(4) reaction kettle stirring being added in filtrate D, is heated to 80-120 DEG C, adjustment pH is 9-10, is precipitated, precipitating is filtered,
Obtain the magnesium carbonate and filtrate E of 7-10%；
(5) reaction kettle stirring is added in filtrate E, is heated to 80-120 DEG C, adjustment pH is 10-12, is precipitated, will be precipitated
Filter obtains 20% calcium carbonate after washing is dry.
Beneficial effects of the present invention are as follows:
1. only remain a small amount of waste residue after by means of the present invention, red mud utilizes, waste residue can also waste utilization production wall mud,
Cement and brick etc., so, waste residue is not generated finally.
2. after by means of the present invention, red mud utilizes, the gas of generation can be mentioned after vacuum pump set precipitating synthesis
Taking becomes product, so, do not generate exhaust gas.
After 3. by means of the present invention, red mud utilizes, decomposition of the generated waste liquid through peracid, alkali, chemical reagent,
After recyclable purification, it is recycled again, so, do not generate waste liquid.
So by means of the present invention, after red mud processing, not generating the three wastes.
Specific embodiment
A kind of red mud Chemical Physics integrated conduct method, includes the following steps:
Silica is produced in the first step, red mud decomposition
Red mud is added in the acid-resistant reacting kettle of band stirring, concentration is added as 95% concentrated sulfuric acid, wherein red mud and the concentrated sulfuric acid
Mass ratio is 1:2, and halide is added into reaction kettle as activator, wherein the mass ratio of red mud and halide is 1:1.5,
Under conditions of 80-120 DEG C, stirs to fully reacting, the gas of generation is entered into vacuum pump set filtering and washing and obtains mass parts
Number is the HIGH-PURITY SILICON product of 40-50%, generates gas-phase silica；
Wherein, the halide is sodium chloride.
Second step, the separation of solid phase
Reaction kettle is added in the liquid phase that liquid in reaction kettle is obtained by filtration, and adjustment pH value is 7, makes the waste point in iron and liquid phase
From filtrate A is obtained by filtration；
Third step, contained substance gradually separates in liquid phase
(1) reaction kettle stirring is added in the filtrate A for obtaining second step, is heated to 80-120 DEG C, and increasing potassium manganate adjustment pH is 7-
8, it is precipitated, precipitating is filtered, 10% iron oxide and liquor B is obtained；
(2) reaction kettle stirring is added in liquor B, is heated to 120-140 DEG C, adjustment pH is 7.5, evolution sodium metaaluminate precipitating, mistake
Filter, obtains the aluminium oxide and liquor C of 15-25% for filter residue calcination；
(3) reaction kettle stirring being added in liquor C, is heated to 80-120 DEG C, adjustment pH is 2-3, is precipitated, precipitating is filtered,
Obtained filter residue and filtrate D, filter residue and drying obtain 3% titanium fine powder；
(4) reaction kettle stirring being added in filtrate D, is heated to 80-120 DEG C, adjustment pH is 9-10, is precipitated, precipitating is filtered,
Obtain the magnesium carbonate and filtrate E of 7-10%；
(5) reaction kettle stirring is added in filtrate E, is heated to 80-120 DEG C, adjustment pH is 10-12, is precipitated, will be precipitated
Filter obtains 20% calcium carbonate after washing is dry.
By means of the present invention, 5 kilograms, 10 kilograms and 100 kilograms of red mud is tested respectively, it can be to red mud
Comprehensive utilization, does not generate the three wastes.
Claims (1)
1. a kind of red mud Chemical Physics integrated conduct method, characterized by the following steps:
Silica is produced in the first step, red mud decomposition
Red mud is added in the acid-resistant reacting kettle of band stirring, concentration is added as 95% concentrated sulfuric acid, wherein red mud and the concentrated sulfuric acid
Mass ratio is 1:2, and halide is added into reaction kettle as activator, wherein the mass ratio of red mud and halide is 1:1.5,
Under conditions of 80-120 DEG C, stirs to fully reacting, the gas of generation is entered into vacuum pump set filtering and washing and obtains mass parts
Number is the HIGH-PURITY SILICON product of 40-50%, generates gas-phase silica；
Second step, the separation of solid phase
Reaction kettle is added in the liquid phase that liquid in reaction kettle is obtained by filtration, and adjustment pH value is 7, makes the waste point in iron and liquid phase
From filtrate A is obtained by filtration；
Third step, contained substance gradually separates in liquid phase
(1) reaction kettle stirring is added in the filtrate A for obtaining second step, is heated to 80-120 DEG C, and increasing potassium manganate adjustment pH is 7-
8, it is precipitated, precipitating is filtered, 10% iron oxide and liquor B is obtained；
(2) reaction kettle stirring is added in liquor B, is heated to 120-140 DEG C, adjustment pH is 7.5, evolution sodium metaaluminate precipitating, mistake
Filter, obtains the aluminium oxide and liquor C of 15-25% for filter residue calcination；
(3) reaction kettle stirring being added in liquor C, is heated to 80-120 DEG C, adjustment pH is 2-3, is precipitated, precipitating is filtered,
Obtained filter residue and filtrate D, filter residue and drying obtain 3% titanium fine powder；
(4) reaction kettle stirring being added in filtrate D, is heated to 80-120 DEG C, adjustment pH is 9-10, is precipitated, precipitating is filtered,
Obtain the magnesium carbonate and filtrate E of 7-10%；
(5) reaction kettle stirring is added in filtrate E, is heated to 80-120 DEG C, adjustment pH is 10-12, is precipitated, will be precipitated
Filter obtains 20% calcium carbonate after washing is dry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910350765.0A CN110156029A (en) | 2019-04-28 | 2019-04-28 | Red mud Chemical Physics integrated conduct method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910350765.0A CN110156029A (en) | 2019-04-28 | 2019-04-28 | Red mud Chemical Physics integrated conduct method |
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| Publication Number | Publication Date |
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| CN110156029A true CN110156029A (en) | 2019-08-23 |
Family
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| CN201910350765.0A Pending CN110156029A (en) | 2019-04-28 | 2019-04-28 | Red mud Chemical Physics integrated conduct method |
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| Country | Link |
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| CN (1) | CN110156029A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2576266A (en) * | 2019-10-10 | 2020-02-12 | Edward Durrant Richard | Red mud sodalite conversion |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2576266A (en) * | 2019-10-10 | 2020-02-12 | Edward Durrant Richard | Red mud sodalite conversion |
| GB2576266B (en) * | 2019-10-10 | 2020-09-23 | Edward Durrant Richard | Red mud sodalite conversion |
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