GB1567964A - Process for working up waste fly dusts into zeolites - Google Patents
Process for working up waste fly dusts into zeolites Download PDFInfo
- Publication number
- GB1567964A GB1567964A GB47037/77A GB4703777A GB1567964A GB 1567964 A GB1567964 A GB 1567964A GB 47037/77 A GB47037/77 A GB 47037/77A GB 4703777 A GB4703777 A GB 4703777A GB 1567964 A GB1567964 A GB 1567964A
- Authority
- GB
- United Kingdom
- Prior art keywords
- alkali metal
- solution
- molecular sieve
- active carbon
- modulus
- Prior art date
- 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
Links
- 238000000034 method Methods 0.000 title claims description 66
- 239000002699 waste material Substances 0.000 title claims description 16
- 239000010457 zeolite Substances 0.000 title description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 39
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 22
- 238000004519 manufacturing process Methods 0.000 claims description 21
- 239000002808 molecular sieve Substances 0.000 claims description 21
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 21
- 239000000428 dust Substances 0.000 claims description 20
- 239000011734 sodium Substances 0.000 claims description 20
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 19
- 229910052910 alkali metal silicate Inorganic materials 0.000 claims description 18
- 239000000377 silicon dioxide Substances 0.000 claims description 16
- 229910052799 carbon Inorganic materials 0.000 claims description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 14
- 230000029087 digestion Effects 0.000 claims description 12
- 235000012239 silicon dioxide Nutrition 0.000 claims description 11
- 150000008044 alkali metal hydroxides Chemical class 0.000 claims description 9
- 239000012013 faujasite Substances 0.000 claims description 9
- 238000001914 filtration Methods 0.000 claims description 8
- 239000012535 impurity Substances 0.000 claims description 8
- 239000012452 mother liquor Substances 0.000 claims description 8
- 239000007800 oxidant agent Substances 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000004115 Sodium Silicate Substances 0.000 claims description 6
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 6
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 5
- 238000002425 crystallisation Methods 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 5
- 229910000676 Si alloy Inorganic materials 0.000 claims description 4
- 239000000470 constituent Substances 0.000 claims description 4
- 238000001704 evaporation Methods 0.000 claims description 4
- 230000008020 evaporation Effects 0.000 claims description 4
- 239000011541 reaction mixture Substances 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 4
- 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 description 3
- 229910052783 alkali metal Inorganic materials 0.000 claims description 3
- -1 alkali metal aluminate Chemical class 0.000 claims description 3
- 150000004973 alkali metal peroxides Chemical class 0.000 claims description 3
- 239000013078 crystal Substances 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 229910021471 metal-silicon alloy Inorganic materials 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 2
- 239000003610 charcoal Substances 0.000 claims description 2
- 238000000227 grinding Methods 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims 2
- 239000003513 alkali Substances 0.000 claims 1
- 229910000000 metal hydroxide Inorganic materials 0.000 claims 1
- 150000004692 metal hydroxides Chemical class 0.000 claims 1
- 150000002978 peroxides Chemical class 0.000 claims 1
- 229910052708 sodium Inorganic materials 0.000 claims 1
- 239000000243 solution Substances 0.000 description 32
- 235000019353 potassium silicate Nutrition 0.000 description 17
- 239000000155 melt Substances 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 7
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 7
- 239000000047 product Substances 0.000 description 7
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 description 6
- 229910001388 sodium aluminate Inorganic materials 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 229910021536 Zeolite Inorganic materials 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000007858 starting material Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000000209 wet digestion Methods 0.000 description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 239000000499 gel Substances 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- PFUVRDFDKPNGAV-UHFFFAOYSA-N sodium peroxide Chemical compound [Na+].[Na+].[O-][O-] PFUVRDFDKPNGAV-UHFFFAOYSA-N 0.000 description 3
- 229910000640 Fe alloy Inorganic materials 0.000 description 2
- 229910018540 Si C Inorganic materials 0.000 description 2
- 238000002441 X-ray diffraction Methods 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910021417 amorphous silicon Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000011575 calcium Chemical class 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- XWHPIFXRKKHEKR-UHFFFAOYSA-N iron silicon Chemical compound [Si].[Fe] XWHPIFXRKKHEKR-UHFFFAOYSA-N 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 150000004760 silicates Chemical class 0.000 description 2
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 2
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical compound [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical class [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229920001353 Dextrin Polymers 0.000 description 1
- 239000004375 Dextrin Substances 0.000 description 1
- 229910000519 Ferrosilicon Inorganic materials 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- 241000294754 Macroptilium atropurpureum Species 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical class [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229920002292 Nylon 6 Polymers 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910052791 calcium Chemical class 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000011280 coal tar Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010908 decantation Methods 0.000 description 1
- 235000019425 dextrin Nutrition 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000003295 industrial effluent Substances 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000011777 magnesium Chemical class 0.000 description 1
- 229910052749 magnesium Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010310 metallurgical process Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001698 pyrogenic effect Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 150000003377 silicon compounds Chemical class 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- CCEKAJIANROZEO-UHFFFAOYSA-N sulfluramid Chemical group CCNS(=O)(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F CCEKAJIANROZEO-UHFFFAOYSA-N 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 230000002110 toxicologic effect Effects 0.000 description 1
- 231100000027 toxicology Toxicity 0.000 description 1
- 238000010626 work up procedure Methods 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
- C01B33/20—Silicates
- C01B33/32—Alkali metal silicates
- C01B33/325—After-treatment, e.g. purification or stabilisation of solutions, granulation; Dissolution; Obtaining solid silicate, e.g. from a solution by spray-drying, flashing off water or adding a coagulant
-
- 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
- C01B33/20—Silicates
- C01B33/26—Aluminium-containing silicates, i.e. silico-aluminates
- C01B33/28—Base exchange silicates, e.g. zeolites
- C01B33/2807—Zeolitic silicoaluminates with a tridimensional crystalline structure possessing molecular sieve properties; Isomorphous compounds wherein a part of the aluminium ore of the silicon present may be replaced by other elements such as gallium, germanium, phosphorus; Preparation of zeolitic molecular sieves from molecular sieves of another type or from preformed reacting mixtures
- C01B33/2838—Zeolitic silicoaluminates with a tridimensional crystalline structure possessing molecular sieve properties; Isomorphous compounds wherein a part of the aluminium ore of the silicon present may be replaced by other elements such as gallium, germanium, phosphorus; Preparation of zeolitic molecular sieves from molecular sieves of another type or from preformed reacting mixtures of faujasite type, or type X or Y (UNION CARBIDE trade names; correspond to GRACE's types Z-14 and Z-14HS, respectively)
- C01B33/2853—Zeolitic silicoaluminates with a tridimensional crystalline structure possessing molecular sieve properties; Isomorphous compounds wherein a part of the aluminium ore of the silicon present may be replaced by other elements such as gallium, germanium, phosphorus; Preparation of zeolitic molecular sieves from molecular sieves of another type or from preformed reacting mixtures of faujasite type, or type X or Y (UNION CARBIDE trade names; correspond to GRACE's types Z-14 and Z-14HS, respectively) of type Y
-
- 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
- C01B33/20—Silicates
- C01B33/32—Alkali metal silicates
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2651446A DE2651446C2 (de) | 1976-11-11 | 1976-11-11 | Verfahren zur Aufbereitung von Siliziumdioxid enthaltenden Abfallflugstäuben zu kristallinem zeolithischen Molekularsieb vom Typ Y mit Faujasit Struktur |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1567964A true GB1567964A (en) | 1980-05-21 |
Family
ID=5992900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB47037/77A Expired GB1567964A (en) | 1976-11-11 | 1977-11-11 | Process for working up waste fly dusts into zeolites |
Country Status (14)
| Country | Link |
|---|---|
| US (1) | US4226837A (https=) |
| JP (1) | JPS5361600A (https=) |
| BE (1) | BE860761A (https=) |
| BR (1) | BR7707510A (https=) |
| CA (1) | CA1093535A (https=) |
| CH (1) | CH634019A5 (https=) |
| DE (1) | DE2651446C2 (https=) |
| ES (1) | ES462022A1 (https=) |
| FR (1) | FR2370686A1 (https=) |
| GB (1) | GB1567964A (https=) |
| IT (1) | IT1093008B (https=) |
| NL (1) | NL176549C (https=) |
| NO (1) | NO150953C (https=) |
| SE (1) | SE7712793L (https=) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2339774A (en) * | 1998-07-24 | 2000-02-09 | Council Scient Ind Res | Synthesis of faujasite y-type zeolite from fly ash |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2826432C2 (de) * | 1978-06-16 | 1980-10-16 | Henkel Kgaa, 4000 Duesseldorf | Verfahren zur Herstellung von Wasserglas |
| DE3516660A1 (de) | 1985-05-09 | 1986-11-13 | Degussa Ag, 6000 Frankfurt | Pulverfoermiges bindemittelkonzentrat |
| US5077020A (en) * | 1989-12-20 | 1991-12-31 | Westinghouse Electric Corp. | Metal recovery process using waterglass |
| DE69324716T2 (de) * | 1992-02-13 | 1999-09-09 | Becton Dickinson And Co. | Celithydrat und Reinigung von DNS |
| WO1997045368A1 (en) * | 1996-05-28 | 1997-12-04 | Consolidated Metallurgical Industries Limited | Alkali metal silicate solution manufacturing process |
| CN1078180C (zh) * | 1998-08-14 | 2002-01-23 | 中国石油化工集团公司 | 一种制备y型分子筛的方法 |
| US6027708A (en) * | 1998-09-08 | 2000-02-22 | Council Of Scientific & Industrial Research | Process for the synthesis of flyash based zeolite-Y |
| DE10114985C5 (de) * | 2001-03-26 | 2017-08-24 | Hans-Peter Noack | Verfahren zur Herstellung von Mineralwolle |
| US6632415B2 (en) * | 2001-04-09 | 2003-10-14 | Chevron U.S.A. Inc. | Methods for making molecular sieves |
| CN102233281B (zh) * | 2010-04-30 | 2013-04-24 | 中国石油化工股份有限公司 | 一种活性载体的制备及其应用 |
| KR101171799B1 (ko) * | 2010-06-29 | 2012-08-13 | 고려대학교 산학협력단 | 실리카 에칭 폐기물을 재활용하는 방법 및 메조다공성 물질을 제조하는 방법 |
| CN103738977B (zh) * | 2013-12-27 | 2016-03-23 | 中国神华能源股份有限公司 | 一种以白泥为原料制备4a型分子筛的方法及由该方法制备的产品 |
| EP3954743A1 (de) | 2020-08-12 | 2022-02-16 | Evonik Operations GmbH | Verwendung von siliziumdioxid zur verbesserung der leitfähigkeit von beschichtungen |
| CN114212799B (zh) * | 2021-12-21 | 2024-03-12 | 黑龙江省能源环境研究院 | 一种用于分子筛制备的粉煤灰预处理方法 |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3343913A (en) * | 1967-09-26 | Table iv | ||
| US2882244A (en) * | 1953-12-24 | 1959-04-14 | Union Carbide Corp | Molecular sieve adsorbents |
| DE1098929B (de) * | 1958-04-14 | 1961-02-09 | Union Carbide Corp | Verfahren zur Herstellung kristalliner zeolithischer Molekularsiebe |
| BE579912A (https=) * | 1958-07-31 | |||
| US3130007A (en) * | 1961-05-12 | 1964-04-21 | Union Carbide Corp | Crystalline zeolite y |
| US4016246A (en) * | 1965-04-09 | 1977-04-05 | Laporte Industries Limited | Manufacture of synthetic zeolites |
| US3489586A (en) * | 1967-03-03 | 1970-01-13 | Georgia Kaolin Co | Clay treatment |
| DE1812339B2 (de) * | 1968-12-03 | 1977-03-10 | Bayer Ag, 5090 Leverkusen | Verfahren zur herstellung synthetischer zeolithe mit der kristallstruktur des faujasits |
| JPS4816438B1 (https=) * | 1970-10-29 | 1973-05-22 | ||
| JPS49134593A (https=) * | 1973-04-28 | 1974-12-25 | ||
| JPS49134599A (https=) * | 1973-04-28 | 1974-12-25 | ||
| US3898319A (en) * | 1974-04-01 | 1975-08-05 | Union Carbide Corp | Process for preparing zeolite Y |
| JPS50150699A (https=) * | 1974-05-27 | 1975-12-03 |
-
1976
- 1976-11-11 DE DE2651446A patent/DE2651446C2/de not_active Expired
-
1977
- 1977-08-09 NO NO772794A patent/NO150953C/no unknown
- 1977-08-25 NL NLAANVRAGE7709396,A patent/NL176549C/xx not_active IP Right Cessation
- 1977-09-01 ES ES462022A patent/ES462022A1/es not_active Expired
- 1977-09-21 FR FR7728469A patent/FR2370686A1/fr active Granted
- 1977-09-29 IT IT69145/77A patent/IT1093008B/it active
- 1977-10-11 CA CA288,436A patent/CA1093535A/en not_active Expired
- 1977-11-08 US US05/849,612 patent/US4226837A/en not_active Expired - Lifetime
- 1977-11-09 BR BR7707510A patent/BR7707510A/pt unknown
- 1977-11-10 BE BE6046223A patent/BE860761A/xx not_active IP Right Cessation
- 1977-11-10 JP JP13520877A patent/JPS5361600A/ja active Pending
- 1977-11-11 GB GB47037/77A patent/GB1567964A/en not_active Expired
- 1977-11-11 SE SE7712793A patent/SE7712793L/xx not_active Application Discontinuation
- 1977-11-11 CH CH1381077A patent/CH634019A5/de not_active IP Right Cessation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2339774A (en) * | 1998-07-24 | 2000-02-09 | Council Scient Ind Res | Synthesis of faujasite y-type zeolite from fly ash |
| GB2339774B (en) * | 1998-07-24 | 2000-06-14 | Council Scient Ind Res | Process for the production of flyash based zeolite y (faz-y) |
Also Published As
| Publication number | Publication date |
|---|---|
| NL176549C (nl) | 1985-05-01 |
| NO150953C (no) | 1985-01-16 |
| CA1093535A (en) | 1981-01-13 |
| DE2651446A1 (de) | 1978-05-24 |
| NO150953B (no) | 1984-10-08 |
| BE860761A (fr) | 1978-05-10 |
| JPS5361600A (en) | 1978-06-02 |
| US4226837A (en) | 1980-10-07 |
| CH634019A5 (de) | 1983-01-14 |
| FR2370686B1 (https=) | 1981-08-14 |
| DE2651446C2 (de) | 1984-04-19 |
| IT1093008B (it) | 1985-07-19 |
| FR2370686A1 (fr) | 1978-06-09 |
| ES462022A1 (es) | 1978-06-16 |
| NL176549B (nl) | 1984-12-03 |
| NO772794L (no) | 1978-05-12 |
| NL7709396A (nl) | 1978-05-16 |
| SE7712793L (sv) | 1978-05-12 |
| BR7707510A (pt) | 1978-08-01 |
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| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19931111 |