CA2592518C - Procede de preparation de silice amorphe a partir de residus de kimberlite - Google Patents

Procede de preparation de silice amorphe a partir de residus de kimberlite Download PDF

Info

Publication number: CA2592518C
Authority: CA; Canada
Prior art keywords: range; acid; silica; sodium silicate; silicate solution
Prior art date: 2004-12-30
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Expired - Fee Related

Application number

CA2592518A

Other languages

English (en)

Other versions

CA2592518A1 (fr

Inventor

Raksh Vir Jasra

H. M. Mody

H. C. Bajaj

R. S. Somani

J. R. Chunawala

Hemal Ranpura

Dipti Barochiya

Devendra Ghelani

Suresh Chandra

M. K. Dhar

Keshav Rao

Kamlesh Kumar

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Council of Scientific and Industrial Research CSIR

National Mineral Development Corp Ltd

Original Assignee

Council of Scientific and Industrial Research CSIR

National Mineral Development Corp Ltd

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

2004-12-30

Filing date

2004-12-30

Publication date

2013-04-16

2004-12-30 Application filed by Council of Scientific and Industrial Research CSIR, National Mineral Development Corp Ltd filed Critical Council of Scientific and Industrial Research CSIR

2006-07-06 Publication of CA2592518A1 publication Critical patent/CA2592518A1/fr

2013-04-16 Application granted granted Critical

2013-04-16 Publication of CA2592518C publication Critical patent/CA2592518C/fr

2024-12-30 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

Links

VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 220
238000004519 manufacturing process Methods 0.000 title claims description 5
239000002253 acid Substances 0.000 claims abstract description 97
238000000034 method Methods 0.000 claims abstract description 90
239000000377 silicon dioxide Substances 0.000 claims abstract description 90
239000003513 alkali Substances 0.000 claims abstract description 24
229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 20
239000011707 mineral Substances 0.000 claims abstract description 20
239000002244 precipitate Substances 0.000 claims abstract description 7
NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 63
239000004115 Sodium Silicate Substances 0.000 claims description 59
229910052911 sodium silicate Inorganic materials 0.000 claims description 59
238000007792 addition Methods 0.000 claims description 54
238000006243 chemical reaction Methods 0.000 claims description 31
BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 30
238000006386 neutralization reaction Methods 0.000 claims description 30
239000002002 slurry Substances 0.000 claims description 24
239000002535 acidifier Substances 0.000 claims description 22
HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 21
235000010755 mineral Nutrition 0.000 claims description 19
239000000843 powder Substances 0.000 claims description 15
229910001415 sodium ion Inorganic materials 0.000 claims description 14
238000003756 stirring Methods 0.000 claims description 14
238000001914 filtration Methods 0.000 claims description 12
230000032683 aging Effects 0.000 claims description 8
238000001035 drying Methods 0.000 claims description 8
238000005406 washing Methods 0.000 claims description 8
238000009835 boiling Methods 0.000 claims description 4
238000007865 diluting Methods 0.000 claims description 4
238000010438 heat treatment Methods 0.000 claims description 4
GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 3
QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 3
GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 3
239000000706 filtrate Substances 0.000 claims description 3
229910017604 nitric acid Inorganic materials 0.000 claims description 3
238000010298 pulverizing process Methods 0.000 claims description 3
239000000126 substance Substances 0.000 claims description 3
-1 sulphate ions Chemical class 0.000 claims description 3
239000008399 tap water Substances 0.000 claims description 3
235000020679 tap water Nutrition 0.000 claims description 3
238000010306 acid treatment Methods 0.000 claims description 2
239000000470 constituent Substances 0.000 claims description 2
JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 2
229910021653 sulphate ion Inorganic materials 0.000 claims description 2
PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims 1
229910052593 corundum Inorganic materials 0.000 claims 1
229910001845 yogo sapphire Inorganic materials 0.000 claims 1
239000000047 product Substances 0.000 abstract description 16
238000002360 preparation method Methods 0.000 abstract description 15
229920001971 elastomer Polymers 0.000 abstract description 9
239000005060 rubber Substances 0.000 abstract description 7
229910003460 diamond Inorganic materials 0.000 abstract description 3
239000010432 diamond Substances 0.000 abstract description 3
LRCFXGAMWKDGLA-UHFFFAOYSA-N dioxosilane;hydrate Chemical compound O.O=[Si]=O LRCFXGAMWKDGLA-UHFFFAOYSA-N 0.000 abstract description 3
238000005065 mining Methods 0.000 abstract description 3
239000002699 waste material Substances 0.000 abstract description 3
229910052914 metal silicate Inorganic materials 0.000 abstract description 2
239000003973 paint Substances 0.000 abstract description 2
239000000243 solution Substances 0.000 description 65
QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 26
KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 21
239000011541 reaction mixture Substances 0.000 description 20
238000010521 absorption reaction Methods 0.000 description 19
239000003921 oil Substances 0.000 description 18
235000019198 oils Nutrition 0.000 description 18
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 17
239000002245 particle Substances 0.000 description 15
229910001220 stainless steel Inorganic materials 0.000 description 12
239000010935 stainless steel Substances 0.000 description 12
VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 10
150000001450 anions Chemical class 0.000 description 10
159000000000 sodium salts Chemical class 0.000 description 9
229910052910 alkali metal silicate Inorganic materials 0.000 description 8
239000000725 suspension Substances 0.000 description 8
238000001556 precipitation Methods 0.000 description 7
235000012239 silicon dioxide Nutrition 0.000 description 7
IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
239000000203 mixture Substances 0.000 description 6
239000011550 stock solution Substances 0.000 description 6
229910052783 alkali metal Inorganic materials 0.000 description 5
150000001340 alkali metals Chemical class 0.000 description 5
DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 description 5
239000003792 electrolyte Substances 0.000 description 5
239000012065 filter cake Substances 0.000 description 5
239000000123 paper Substances 0.000 description 5
239000012429 reaction media Substances 0.000 description 5
230000035484 reaction time Effects 0.000 description 5
235000011121 sodium hydroxide Nutrition 0.000 description 5
239000013543 active substance Substances 0.000 description 4
229910000272 alkali metal oxide Inorganic materials 0.000 description 4
XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
229910052782 aluminium Inorganic materials 0.000 description 4
239000007900 aqueous suspension Substances 0.000 description 4
239000006185 dispersion Substances 0.000 description 4
235000019353 potassium silicate Nutrition 0.000 description 4
238000010008 shearing Methods 0.000 description 4
239000007787 solid Substances 0.000 description 4
230000002411 adverse Effects 0.000 description 3
239000008119 colloidal silica Substances 0.000 description 3
239000007788 liquid Substances 0.000 description 3
229910052757 nitrogen Inorganic materials 0.000 description 3
238000000926 separation method Methods 0.000 description 3
CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 2
238000006555 catalytic reaction Methods 0.000 description 2
238000005345 coagulation Methods 0.000 description 2
230000015271 coagulation Effects 0.000 description 2
238000007796 conventional method Methods 0.000 description 2
239000007799 cork Substances 0.000 description 2
GVJHHUAWPYXKBD-UHFFFAOYSA-N d-alpha-tocopherol Natural products OC1=C(C)C(C)=C2OC(CCCC(C)CCCC(C)CCCC(C)C)(C)CCC2=C1C GVJHHUAWPYXKBD-UHFFFAOYSA-N 0.000 description 2
239000012153 distilled water Substances 0.000 description 2
239000000806 elastomer Substances 0.000 description 2
239000000499 gel Substances 0.000 description 2
239000011521 glass Substances 0.000 description 2
239000000976 ink Substances 0.000 description 2
230000006911 nucleation Effects 0.000 description 2
238000010899 nucleation Methods 0.000 description 2
239000006072 paste Substances 0.000 description 2
239000000376 reactant Substances 0.000 description 2
230000002787 reinforcement Effects 0.000 description 2
238000001694 spray drying Methods 0.000 description 2
238000012360 testing method Methods 0.000 description 2
BIIBYWQGRFWQKM-JVVROLKMSA-N (2S)-N-[4-(cyclopropylamino)-3,4-dioxo-1-[(3S)-2-oxopyrrolidin-3-yl]butan-2-yl]-2-[[(E)-3-(2,4-dichlorophenyl)prop-2-enoyl]amino]-4,4-dimethylpentanamide Chemical compound CC(C)(C)C[C@@H](C(NC(C[C@H](CCN1)C1=O)C(C(NC1CC1)=O)=O)=O)NC(/C=C/C(C=CC(Cl)=C1)=C1Cl)=O BIIBYWQGRFWQKM-JVVROLKMSA-N 0.000 description 1
QIVUCLWGARAQIO-OLIXTKCUSA-N (3s)-n-[(3s,5s,6r)-6-methyl-2-oxo-1-(2,2,2-trifluoroethyl)-5-(2,3,6-trifluorophenyl)piperidin-3-yl]-2-oxospiro[1h-pyrrolo[2,3-b]pyridine-3,6'-5,7-dihydrocyclopenta[b]pyridine]-3'-carboxamide Chemical compound C1([C@H]2[C@H](N(C(=O)[C@@H](NC(=O)C=3C=C4C[C@]5(CC4=NC=3)C3=CC=CN=C3NC5=O)C2)CC(F)(F)F)C)=C(F)C=CC(F)=C1F QIVUCLWGARAQIO-OLIXTKCUSA-N 0.000 description 1
FPIPGXGPPPQFEQ-UHFFFAOYSA-N 13-cis retinol Natural products OCC=C(C)C=CC=C(C)C=CC1=C(C)CCCC1(C)C FPIPGXGPPPQFEQ-UHFFFAOYSA-N 0.000 description 1
229910018404 Al2 O3 Inorganic materials 0.000 description 1
229940126062 Compound A Drugs 0.000 description 1
101100348017 Drosophila melanogaster Nazo gene Proteins 0.000 description 1
NLDMNSXOCDLTTB-UHFFFAOYSA-N Heterophylliin A Natural products O1C2COC(=O)C3=CC(O)=C(O)C(O)=C3C3=C(O)C(O)=C(O)C=C3C(=O)OC2C(OC(=O)C=2C=C(O)C(O)=C(O)C=2)C(O)C1OC(=O)C1=CC(O)=C(O)C(O)=C1 NLDMNSXOCDLTTB-UHFFFAOYSA-N 0.000 description 1
FFEARJCKVFRZRR-BYPYZUCNSA-N L-methionine Chemical compound CSCC[C@H](N)C(O)=O FFEARJCKVFRZRR-BYPYZUCNSA-N 0.000 description 1
238000013494 PH determination Methods 0.000 description 1
FPIPGXGPPPQFEQ-BOOMUCAASA-N Vitamin A Natural products OC/C=C(/C)\C=C\C=C(\C)/C=C/C1=C(C)CCCC1(C)C FPIPGXGPPPQFEQ-BOOMUCAASA-N 0.000 description 1
229930003427 Vitamin E Natural products 0.000 description 1
238000005299 abrasion Methods 0.000 description 1
150000007513 acids Chemical class 0.000 description 1
238000013019 agitation Methods 0.000 description 1
FPIPGXGPPPQFEQ-OVSJKPMPSA-N all-trans-retinol Chemical compound OC\C=C(/C)\C=C\C=C(/C)\C=C\C1=C(C)CCCC1(C)C FPIPGXGPPPQFEQ-OVSJKPMPSA-N 0.000 description 1
150000004645 aluminates Chemical class 0.000 description 1
239000007864 aqueous solution Substances 0.000 description 1
239000002585 base Substances 0.000 description 1
230000015572 biosynthetic process Effects 0.000 description 1
239000007853 buffer solution Substances 0.000 description 1
229910052799 carbon Inorganic materials 0.000 description 1
239000001569 carbon dioxide Substances 0.000 description 1
229910002092 carbon dioxide Inorganic materials 0.000 description 1
230000015556 catabolic process Effects 0.000 description 1
239000003054 catalyst Substances 0.000 description 1
150000001768 cations Chemical class 0.000 description 1
238000012512 characterization method Methods 0.000 description 1
238000007596 consolidation process Methods 0.000 description 1
238000013270 controlled release Methods 0.000 description 1
230000001276 controlling effect Effects 0.000 description 1
238000006731 degradation reaction Methods 0.000 description 1
230000008021 deposition Effects 0.000 description 1
230000029087 digestion Effects 0.000 description 1
230000000694 effects Effects 0.000 description 1
239000010419 fine particle Substances 0.000 description 1
235000013305 food Nutrition 0.000 description 1
229910021485 fumed silica Inorganic materials 0.000 description 1
WIGCFUFOHFEKBI-UHFFFAOYSA-N gamma-tocopherol Natural products CC(C)CCCC(C)CCCC(C)CCCC1CCC2C(C)C(O)C(C)C(C)C2O1 WIGCFUFOHFEKBI-UHFFFAOYSA-N 0.000 description 1
238000000227 grinding Methods 0.000 description 1
239000012535 impurity Substances 0.000 description 1
229910017053 inorganic salt Inorganic materials 0.000 description 1
239000010410 layer Substances 0.000 description 1
235000021388 linseed oil Nutrition 0.000 description 1
239000000944 linseed oil Substances 0.000 description 1
ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
239000001095 magnesium carbonate Substances 0.000 description 1
229910000021 magnesium carbonate Inorganic materials 0.000 description 1
238000005259 measurement Methods 0.000 description 1
229910021645 metal ion Inorganic materials 0.000 description 1
229930182817 methionine Natural products 0.000 description 1
238000002156 mixing Methods 0.000 description 1
AYOOGWWGECJQPI-NSHDSACASA-N n-[(1s)-1-(5-fluoropyrimidin-2-yl)ethyl]-3-(3-propan-2-yloxy-1h-pyrazol-5-yl)imidazo[4,5-b]pyridin-5-amine Chemical compound N1C(OC(C)C)=CC(N2C3=NC(N[C@@H](C)C=4N=CC(F)=CN=4)=CC=C3N=C2)=N1 AYOOGWWGECJQPI-NSHDSACASA-N 0.000 description 1
VOVZXURTCKPRDQ-CQSZACIVSA-N n-[4-[chloro(difluoro)methoxy]phenyl]-6-[(3r)-3-hydroxypyrrolidin-1-yl]-5-(1h-pyrazol-5-yl)pyridine-3-carboxamide Chemical compound C1[C@H](O)CCN1C1=NC=C(C(=O)NC=2C=CC(OC(F)(F)Cl)=CC=2)C=C1C1=CC=NN1 VOVZXURTCKPRDQ-CQSZACIVSA-N 0.000 description 1
239000002667 nucleating agent Substances 0.000 description 1
XULSCZPZVQIMFM-IPZQJPLYSA-N odevixibat Chemical compound C12=CC(SC)=C(OCC(=O)N[C@@H](C(=O)N[C@@H](CC)C(O)=O)C=3C=CC(O)=CC=3)C=C2S(=O)(=O)NC(CCCC)(CCCC)CN1C1=CC=CC=C1 XULSCZPZVQIMFM-IPZQJPLYSA-N 0.000 description 1
230000003287 optical effect Effects 0.000 description 1
238000003921 particle size analysis Methods 0.000 description 1
239000011148 porous material Substances 0.000 description 1
230000001376 precipitating effect Effects 0.000 description 1
230000001105 regulatory effect Effects 0.000 description 1
230000003014 reinforcing effect Effects 0.000 description 1
239000011369 resultant mixture Substances 0.000 description 1
230000000630 rising effect Effects 0.000 description 1
239000012266 salt solution Substances 0.000 description 1
150000003839 salts Chemical class 0.000 description 1
150000004760 silicates Chemical class 0.000 description 1
239000002356 single layer Substances 0.000 description 1
238000001179 sorption measurement Methods 0.000 description 1
238000005507 spraying Methods 0.000 description 1
239000001957 sucroglyceride Substances 0.000 description 1
235000010964 sucroglyceride Nutrition 0.000 description 1
239000000606 toothpaste Substances 0.000 description 1
229940034610 toothpaste Drugs 0.000 description 1
238000002525 ultrasonication Methods 0.000 description 1
229930003231 vitamin Natural products 0.000 description 1
235000013343 vitamin Nutrition 0.000 description 1
239000011782 vitamin Substances 0.000 description 1
229940088594 vitamin Drugs 0.000 description 1
235000019155 vitamin A Nutrition 0.000 description 1
239000011719 vitamin A Substances 0.000 description 1
235000019165 vitamin E Nutrition 0.000 description 1
229940046009 vitamin E Drugs 0.000 description 1
239000011709 vitamin E Substances 0.000 description 1
229940045997 vitamin a Drugs 0.000 description 1
KMIOJWCYOHBUJS-HAKPAVFJSA-N vorolanib Chemical compound C1N(C(=O)N(C)C)CC[C@@H]1NC(=O)C1=C(C)NC(\C=C/2C3=CC(F)=CC=C3NC\2=O)=C1C KMIOJWCYOHBUJS-HAKPAVFJSA-N 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
- C01B33/187—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof by acidic treatment of silicates
- 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
- C01B33/126—Preparation of silica of undetermined type
- C01B33/128—Preparation of silica of undetermined type by acidic treatment of aqueous silicate solutions

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Inorganic Chemistry (AREA)
Silicon Compounds (AREA)

CA2592518A 2004-12-30 2004-12-30 Procede de preparation de silice amorphe a partir de residus de kimberlite Expired - Fee Related CA2592518C (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
PCT/IN2004/000437 WO2006070400A1 (fr)	2004-12-30	2004-12-30	Procédé de préparation de silice amorphe à partir de résidus de kimberlite

Publications (2)

Publication Number	Publication Date
CA2592518A1 CA2592518A1 (fr)	2006-07-06
CA2592518C true CA2592518C (fr)	2013-04-16

Family

ID=34960561

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA2592518A Expired - Fee Related CA2592518C (fr)	2004-12-30	2004-12-30	Procede de preparation de silice amorphe a partir de residus de kimberlite

Country Status (4)

Country	Link
CN (1)	CN101094808B (fr)
CA (1)	CA2592518C (fr)
WO (1)	WO2006070400A1 (fr)
ZA (1)	ZA200705227B (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2984870B1 (fr) *	2011-12-23	2014-03-21	Rhodia Operations	Nouveau procede de preparation de silices precipitees.
KR102802415B1 (ko) *	2018-02-02	2025-04-30	더블유.알. 그레이스 앤드 캄파니-콘.	중합체용 제산제
CN114180586B (zh) *	2021-12-27	2023-08-08	江西省矿产资源保障服务中心	一种基于植硅体硅矿的液相法生产白炭黑的工艺

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE3815670A1 (de) *	1988-05-07	1990-01-25	Degussa	Feinteilige faellungskieselsaeure mit hoher struktur, verfahren zu seiner herstellung und verwendung
CN1128239A (zh) *	1995-06-14	1996-08-07	重庆大学	从水玻璃中制备活性白炭黑工艺
DE19527278A1 (de) *	1995-07-26	1997-01-30	Degussa	Fällungskieselsäure
CN1174168A (zh) *	1996-08-15	1998-02-25	鞠馥阳	用煤矸石生产活性白炭黑的方法

2004
- 2004-12-30 WO PCT/IN2004/000437 patent/WO2006070400A1/fr not_active Ceased
- 2004-12-30 CA CA2592518A patent/CA2592518C/fr not_active Expired - Fee Related
- 2004-12-30 CN CN2004800447965A patent/CN101094808B/zh not_active Expired - Fee Related
2007
- 2007-07-02 ZA ZA2007/05227A patent/ZA200705227B/en unknown

Also Published As

Publication number	Publication date
CN101094808B (zh)	2011-07-27
WO2006070400A1 (fr)	2006-07-06
CA2592518A1 (fr)	2006-07-06
ZA200705227B (en)	2010-12-29
CN101094808A (zh)	2007-12-26

Legal Events

Date	Code	Title	Description
2009-07-14	EEER	Examination request
2019-02-11	MKLA	Lapsed	Effective date: 20181231

Publication	Publication Date	Title
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