RU96107261A - METHOD OF OBTAINING ZEOLITE Y WITH AN INCREASED VOLUME OF MESOPOR - Google Patents
METHOD OF OBTAINING ZEOLITE Y WITH AN INCREASED VOLUME OF MESOPORInfo
- Publication number
- RU96107261A RU96107261A RU96107261/25A RU96107261A RU96107261A RU 96107261 A RU96107261 A RU 96107261A RU 96107261/25 A RU96107261/25 A RU 96107261/25A RU 96107261 A RU96107261 A RU 96107261A RU 96107261 A RU96107261 A RU 96107261A
- Authority
- RU
- Russia
- Prior art keywords
- zeolite
- mesopores
- volume
- salt
- acid
- Prior art date
Links
- 239000010457 zeolite Substances 0.000 title claims 22
- 239000011780 sodium chloride Substances 0.000 claims 5
- 239000002253 acid Substances 0.000 claims 4
- 230000003993 interaction Effects 0.000 claims 4
- 150000003839 salts Chemical class 0.000 claims 4
- 229910052783 alkali metal Inorganic materials 0.000 claims 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims 2
- DVARTQFDIMZBAA-UHFFFAOYSA-O Ammonium nitrate Chemical compound [NH4+].[O-][N+]([O-])=O DVARTQFDIMZBAA-UHFFFAOYSA-O 0.000 claims 1
- 150000007513 acids Chemical class 0.000 claims 1
- -1 alkali metal salt Chemical class 0.000 claims 1
- 150000001340 alkali metals Chemical group 0.000 claims 1
- 150000003863 ammonium salts Chemical class 0.000 claims 1
- 239000007864 aqueous solution Substances 0.000 claims 1
- 239000002585 base Substances 0.000 claims 1
- 238000009835 boiling Methods 0.000 claims 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims 1
- 150000007522 mineralic acids Chemical class 0.000 claims 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N nitrate group Chemical group [N+](=O)([O-])[O-] NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims 1
- 150000002894 organic compounds Chemical class 0.000 claims 1
- 238000000926 separation method Methods 0.000 claims 1
- 239000000243 solution Substances 0.000 claims 1
- QAOWNCQODCNURD-UHFFFAOYSA-L sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims 1
- 238000005406 washing Methods 0.000 claims 1
Claims (1)
2. Цеолит по п.1, отличающийся тем, что он принадлежит к типу Y.1. Zeolite having the structure of zeolite Y and the volume of mesopores enclosed in mesopores with a diameter of approximately 2 to 60 nm, characterized in that the ratio of the unit cell constant a o and the volume of mesopores is determined by the following table I (see p.159)
2. Zeolite according to claim 1, characterized in that it belongs to the type Y.
23. Способ по п.10, отличающийся тем, что длительность взаимодействия составляет от 1 минуты до 24 часов.22. The method according to p. 10, characterized in that the resulting zeolite, the ratio of the unit cell constant a о о and the volume of mesopores are defined in the following table II (see p. 159)
23. The method according to p. 10, characterized in that the duration of the interaction ranges from 1 minute to 24 hours.
Applications Claiming Priority (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11663593A | 1993-09-07 | 1993-09-07 | |
US08/116,635 | 1993-09-07 | ||
US08/116.635 | 1993-09-07 | ||
US11777693A | 1993-09-08 | 1993-09-08 | |
US08/117.776 | 1993-09-08 | ||
US08/117,776 | 1993-09-08 | ||
US08/298,158 | 1994-08-30 | ||
US08/298.158 | 1994-08-30 | ||
US08/298,158 US5601798A (en) | 1993-09-07 | 1994-08-30 | Process for preparing zeolite Y with increased mesopore volume |
PCT/US1994/009991 WO1995007236A1 (en) | 1993-09-07 | 1994-09-06 | Process for preparing zeolite y with increased mesopore volume |
Publications (2)
Publication Number | Publication Date |
---|---|
RU96107261A true RU96107261A (en) | 1998-07-27 |
RU2127227C1 RU2127227C1 (en) | 1999-03-10 |
Family
ID=27381856
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU96107261A RU2127227C1 (en) | 1993-09-07 | 1994-09-06 | Method of preparing gamma-zeolite with elevated volume of mesopores, and zeolites |
Country Status (12)
Country | Link |
---|---|
US (1) | US5601798A (en) |
EP (1) | EP0719238A1 (en) |
JP (1) | JPH09502416A (en) |
AU (1) | AU690141B2 (en) |
BR (1) | BR9407423A (en) |
CA (1) | CA2171196A1 (en) |
CZ (1) | CZ68396A3 (en) |
FI (1) | FI961071A (en) |
NO (1) | NO960909L (en) |
RU (1) | RU2127227C1 (en) |
SK (1) | SK30596A3 (en) |
WO (1) | WO1995007236A1 (en) |
Families Citing this family (79)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5840271A (en) * | 1996-02-09 | 1998-11-24 | Intevep, S.A. | Synthetic material with high void volume associated with mesoporous tortuous channels having a narrow size distribution |
US5849258A (en) * | 1996-06-06 | 1998-12-15 | Intevep, S.A. | Material with microporous crystalline walls defining a narrow size distribution of mesopores, and process for preparing same |
AU3232997A (en) * | 1996-06-07 | 1998-01-05 | Chevron U.S.A. Inc. | Zeolite me-utd-1 |
CN1068528C (en) * | 1997-08-27 | 2001-07-18 | 中国石油化工总公司 | Gamma zeolite having rich secondary porosities and preparation method therefor |
US6974787B2 (en) | 1998-08-31 | 2005-12-13 | Exxonmobil Corporation | Gasoline sulfur reduction in fluid catalytic cracking |
US6846403B2 (en) * | 1998-12-28 | 2005-01-25 | Mobil Oil Corporation | Gasoline sulfur reduction in fluid catalytic cracking |
US20020153283A1 (en) * | 1998-12-28 | 2002-10-24 | Arthur W Chester | Gasoline sulfur reduction in fluid catalytic cracking |
US6852214B1 (en) * | 1998-08-31 | 2005-02-08 | Mobil Oil Corporation | Gasoline sulfur reduction in fluid catalytic cracking |
US6136291A (en) * | 1998-10-08 | 2000-10-24 | Mobile Oil Corporation | Faujasite zeolitic materials |
US7803267B2 (en) * | 1998-12-28 | 2010-09-28 | W. R. Grace & Co.-Conn. | Gasoline sulfur reduction in fluid catalytic cracking |
US7084087B2 (en) | 1999-09-07 | 2006-08-01 | Abb Lummus Global Inc. | Zeolite composite, method for making and catalytic application thereof |
BR0013787B1 (en) * | 1999-09-07 | 2010-11-16 | process for producing an inorganic oxide containing micro and mesoporous. | |
US6814950B1 (en) * | 1999-09-07 | 2004-11-09 | Abb Lummus Global Inc. | Inorganic oxides with mesoporosity or combined meso-and microporosity and process for the preparation thereof |
US7361797B2 (en) * | 2002-02-05 | 2008-04-22 | Abb Lummus Global Inc. | Hydrocarbon conversion using nanocrystalline zeolite Y |
US7507686B2 (en) * | 2002-12-03 | 2009-03-24 | W. R. Grace & Co. - Conn. | Gasoline sulfur reduction in fluid catalytic cracking |
US20050077244A1 (en) * | 2003-10-12 | 2005-04-14 | Felix Rodriguez | Method and composition for control of microbial contamination in drinking water produced by condensation |
GB0329106D0 (en) * | 2003-12-16 | 2004-01-21 | Leuven K U Res & Dev | Pressure driven separations of liquid feeds |
US8439047B2 (en) * | 2003-12-22 | 2013-05-14 | Philip Morris Usa Inc. | Composite mesoporous/microporous materials and their use in smoking articles for removing certain gas phase constituents from tobacco smoke |
US7807110B2 (en) | 2004-03-12 | 2010-10-05 | Cormetech Inc. | Catalyst systems |
US8084383B2 (en) * | 2004-03-16 | 2011-12-27 | W.R. Grace & Co.-Conn. | Gasoline sulfur reduction catalyst for fluid catalytic cracking process |
US7589041B2 (en) | 2004-04-23 | 2009-09-15 | Massachusetts Institute Of Technology | Mesostructured zeolitic materials, and methods of making and using the same |
US7776786B2 (en) * | 2004-05-04 | 2010-08-17 | Cormetech, Inc. | Catalyst systems advantageous for high particulate matter environments |
KR101378622B1 (en) * | 2005-09-12 | 2014-03-26 | 자이단호진 세키유산교캇세이카센터 | Catalyst composition for hydrogenation treatment of hydrocarbon and hydrogenation treatment method |
WO2007041851A1 (en) * | 2005-10-12 | 2007-04-19 | Valorbec Societe En Commandite, Represented By Gestion Valéo, S.E.C. | Silica nanoboxes, method of making and use thereof |
JP4984816B2 (en) * | 2005-11-29 | 2012-07-25 | 株式会社デンソー | Method for producing mesoporous structure |
ATE498452T1 (en) * | 2006-08-01 | 2011-03-15 | Cormetech Inc | METHOD FOR EXHAUST TREATMENT |
ES2319007B1 (en) * | 2006-12-07 | 2010-02-16 | Rive Technology, Inc. | METHODS FOR MANUFACTURING MESOSTRUCTURED ZEOLITICAL MATERIALS. |
US8206498B2 (en) * | 2007-10-25 | 2012-06-26 | Rive Technology, Inc. | Methods of recovery of pore-forming agents for mesostructured materials |
US8361434B2 (en) * | 2008-09-18 | 2013-01-29 | Exxonmobil Research And Engineering Company | Extra mesoporous Y zeolite |
US8932454B2 (en) | 2008-09-18 | 2015-01-13 | Exxonmobile Research And Engineering Co. | Mesoporous Y hydrocracking catalyst and associated hydrocracking processes |
TW201029929A (en) * | 2008-12-18 | 2010-08-16 | Grace W R & Co | Novel ultra stable zeolite Y and method for manufacturing the same |
US9242234B2 (en) | 2008-12-22 | 2016-01-26 | Centre National De La Recherche Scientifique | Modified Y-type zeolites having a trimodal intracrystalline structure, method for making same, and use thereof |
FR2940265B1 (en) * | 2008-12-22 | 2011-06-10 | Total Raffinage Marketing | MODIFIED Y ZEOLITES, PROCESS FOR THEIR MANUFACTURE AND THEIR USE |
US8524625B2 (en) * | 2009-01-19 | 2013-09-03 | Rive Technology, Inc. | Compositions and methods for improving the hydrothermal stability of mesostructured zeolites by rare earth ion exchange |
CN102333728A (en) | 2009-01-19 | 2012-01-25 | 里福技术股份有限公司 | In low Si/Al zeolite, introduce mesoporous |
JP5508744B2 (en) * | 2009-03-13 | 2014-06-04 | 出光興産株式会社 | Method for producing beta zeolite and method for producing hydrocracking catalyst |
CN102413929A (en) * | 2009-04-29 | 2012-04-11 | Pq公司 | Zeolite y |
CN102020289B (en) * | 2009-09-10 | 2012-07-25 | 中国石油化工股份有限公司 | Super-stable Y zeolite, preparation method and application thereof |
US8685875B2 (en) | 2009-10-20 | 2014-04-01 | Rive Technology, Inc. | Methods for enhancing the mesoporosity of zeolite-containing materials |
FR2952379B1 (en) * | 2009-11-10 | 2012-05-11 | Inst Francais Du Petrole | HYDROCRACKING PROCESS EMPLOYING A MODIFIED ZEOLITHE BY BASIC TREATMENT |
FR2952378B1 (en) * | 2009-11-10 | 2012-04-20 | Inst Francais Du Petrole | METHOD FOR HYDROTREATING AND HYDROISOMERIZING RENEWABLE SOURCE CHARGES USING A MODIFIED ZEOLITHE BY BASIC TREATMENT |
FR2952380B1 (en) * | 2009-11-10 | 2012-05-18 | Inst Francais Du Petrole | PROCESS FOR PRODUCING MEDIUM DISTILLATE FROM FISCHER TROPSCH WAXES USING ZEOLITHE CATALYST MODIFIED BY BASIC TREATMENT |
US20110171121A1 (en) * | 2010-01-08 | 2011-07-14 | Rive Technology, Inc. | Compositions and methods for making stabilized mesoporous materials |
US20110224068A1 (en) * | 2010-03-11 | 2011-09-15 | W.R. Grace & Co.-Conn. | Low small mesoporous peak cracking catalyst and method of using |
FR2958297B1 (en) | 2010-03-30 | 2013-11-29 | Total Raffinage Marketing | METHOD FOR VALORIZING GASOLINE |
FR2969510B1 (en) * | 2010-12-23 | 2014-06-13 | Total Raffinage Marketing | PROCESS FOR THE PREPARATION OF AN INDUSTRIAL HYDROCONVERSION CATALYST, CATALYST SO OBTAINED AND USE THEREOF IN A HYDROCONVERSION PROCESS |
JP2012140287A (en) * | 2010-12-28 | 2012-07-26 | Jgc Catalysts & Chemicals Ltd | New faujasite type zeolite, method for production thereof, and catalyst including the faujasite type zeolite used for catalytic cracking of hydrocarbon |
EP2694438A4 (en) * | 2011-04-08 | 2014-11-05 | Rive Technology Inc | Mesoporous framework-modified zeolites |
US9821298B2 (en) | 2011-10-24 | 2017-11-21 | Total Raffinage France | Process for preparing a hydroconversion catalyst, catalyst thus obtained and use thereof in a hydroconversion process |
KR102008954B1 (en) | 2011-10-24 | 2019-08-08 | 토탈 라피나쥬 프랑스 | Process for preparing a mesopores-containing catalyst, catalyst thus obtained and use thereof in a hydroconversion process |
US10343150B2 (en) | 2011-10-24 | 2019-07-09 | Total Raffinage France | Process for preparing a mesoporized catalyst, catalyst thus obtained and use thereof in a catalytic process |
FR2981583B1 (en) * | 2011-10-24 | 2019-05-17 | Total Raffinage France | PROCESS FOR PREPARING A CATALYST CONTAINING MESOPORES, CATALYST THUS OBTAINED AND ITS USE IN A HYDROCONVERSION PROCESS |
FR2981584B1 (en) * | 2011-10-24 | 2019-09-20 | Total Raffinage France | PROCESS FOR PREPARING A HYDROCONVERSION CATALYST, CATALYST SO OBTAINED AND USE THEREOF IN A HYDROCONVERSION PROCESS |
US9376324B2 (en) | 2012-01-13 | 2016-06-28 | Rive Technology, Inc. | Introduction of mesoporosity into zeolite materials with sequential acid, surfactant, and base treatment |
CN103930369A (en) | 2012-01-13 | 2014-07-16 | 瑞弗科技有限公司 | Introduction of mesoporosity into low silica zeolites |
US10005072B2 (en) | 2012-07-23 | 2018-06-26 | W. R. Grace & Co.-Conn | High matrix surface area catalytic cracking catalyst stabilized with magnesium and silica |
US9993810B2 (en) | 2012-07-23 | 2018-06-12 | W. R. Grace & Co.-Conn | Silica sol bound catalytic cracking catalyst stabilized with magnesium |
US8765660B1 (en) | 2013-03-08 | 2014-07-01 | Rive Technology, Inc. | Separation of surfactants from polar solids |
CN103172082B (en) * | 2013-04-25 | 2014-10-22 | 哈尔滨工业大学 | Preparation method of mesoporous-containing Y-shaped molecular sieve |
FR3010071B1 (en) * | 2013-09-02 | 2015-08-21 | Ceca Sa | ZEOLITHES HIERARCHISED POROSITY |
US9662640B2 (en) | 2013-12-27 | 2017-05-30 | Rive Technology, Inc. | Introducing mesoporosity into zeolite materials with a modified acid pre-treatment step |
US20160121312A1 (en) * | 2014-10-31 | 2016-05-05 | Chevron U.S.A. Inc. | Middle distillate hydrocracking catalyst containing highly nanoporous stabilized y zeolite |
US20160121313A1 (en) * | 2014-10-31 | 2016-05-05 | Chevron U.S.A. Inc. | Middle distillate hydrocracking catalyst containing highly a stabilized y zeolite with enhanced acid site distribution |
CN105621445B (en) * | 2014-11-03 | 2017-10-27 | 中国石油化工股份有限公司 | A kind of NaY types molecular sieve and preparation method thereof |
CN107001056B (en) | 2014-12-11 | 2019-04-02 | 瑞弗科技有限公司 | Mesoporous zeolite is prepared with the processing of reduction |
US10626019B2 (en) | 2014-12-30 | 2020-04-21 | W. R. Grace & Co.-Conn. | Methods for preparing zeolites with surfactant-templated mesoporosity and tunable aluminum content |
CN107344719B (en) * | 2016-05-05 | 2020-10-16 | 中国石油化工股份有限公司 | Y-Y type isomorphous composite molecular sieve and preparation method thereof |
CN107344720B (en) * | 2016-05-05 | 2019-04-12 | 中国石油化工股份有限公司 | A kind of Y type molecular sieve and preparation method thereof |
CN107758684B (en) * | 2016-08-23 | 2019-05-31 | 中国石油天然气集团公司 | A kind of high mesoporous amount y-type zeolite and preparation method thereof |
IT201600105178A1 (en) | 2016-10-19 | 2018-04-19 | Versalis Spa | Process for the production of dienes |
JP7037573B2 (en) * | 2017-02-21 | 2022-03-16 | 中国石油化工股▲ふん▼有限公司 | Modified Y-type molecular sieves, their production methods, and catalysts containing them. |
MY191917A (en) | 2017-02-22 | 2022-07-18 | China Petroleum & Chem Corp | Catalytic cracking catalyst and preparation thereof |
US10118163B1 (en) | 2017-07-28 | 2018-11-06 | Saudi Arabian Oil Company | Methods for producing hierarchical mesoporous zeolite beta |
CN111386242B (en) | 2017-07-31 | 2023-06-02 | 勒芬天主教大学 | Process for the aftertreatment of zeolites |
TWI831784B (en) * | 2018-05-28 | 2024-02-11 | 大陸商中國石油化工科技開發有限公司 | NaY molecular sieve with aluminum-rich surface and preparation method thereof |
GB201814932D0 (en) * | 2018-09-13 | 2018-10-31 | Univ Manchester | Zeolite modification process and product thereof |
US11559796B2 (en) | 2020-07-28 | 2023-01-24 | Saudi Arabian Oil Company | Methods for producing hierarchical mesoporous beta zeolite |
CN117715895A (en) | 2021-07-30 | 2024-03-15 | 弗门尼舍有限公司 | Process for preparing oxacyclohexane or oxacyclopentane derivatives |
WO2024003271A1 (en) | 2022-06-30 | 2024-01-04 | Firmenich Sa | Process for preparation of ether, thioether or secondary amine derivatives in the presence of a heterogeneous acidic catalyst |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB972831A (en) * | 1959-12-28 | 1964-10-21 | Union Carbide Corp | Crystalline zeolite y' |
US3374056A (en) * | 1964-12-03 | 1968-03-19 | Grace W R & Co | Process for increasing the thermal stability of synthetic faujasite |
US3691099A (en) * | 1970-02-27 | 1972-09-12 | Dean Arthur Young | Treatment of aluminosilicate |
US3929672A (en) * | 1971-10-20 | 1975-12-30 | Union Oil Co | Ammonia-stable Y zeolite compositions |
US5288396A (en) * | 1979-10-15 | 1994-02-22 | Union Oil Company Of California | Hydrocracking process using a catalyst selective for making middle distillates |
US4879019A (en) * | 1979-10-15 | 1989-11-07 | Union Oil Company Of California | Hydrocarbon conversion process for selectively making middle distillates |
US4269815A (en) * | 1980-05-23 | 1981-05-26 | Filtrol Corporation | Method of exchanging sodium zeolite |
JPS5926925A (en) * | 1982-08-02 | 1984-02-13 | Shokubai Kasei Kogyo Kk | Modified zeolite |
SE8602341D0 (en) * | 1986-05-22 | 1986-05-22 | Eka Nobel Ab | SET TO MAKE A MODIFIED ZEOLIT Y |
GB8613132D0 (en) * | 1986-05-30 | 1986-07-02 | Shell Int Research | Hydrocarbon conversion catalysts |
GB8613131D0 (en) * | 1986-05-30 | 1986-07-02 | Shell Int Research | Hydrocarbon conversion |
US4663025A (en) * | 1986-08-14 | 1987-05-05 | Phillips Petroleum Company | Catalytic cracking processes |
GB8708962D0 (en) * | 1987-04-14 | 1987-05-20 | Shell Int Research | Preparation of modified zeolites |
GB8708961D0 (en) * | 1987-04-14 | 1987-05-20 | Shell Int Research | Preparation of modified zeolites |
US5013699A (en) * | 1988-04-07 | 1991-05-07 | Uop | Novel zeolite compositions derived from zeolite Y |
AU624892B2 (en) * | 1989-02-28 | 1992-06-25 | Uop | Middle distillate hydrocracking cayalyst employing low acidity Y zeolite |
US5087348A (en) * | 1989-06-19 | 1992-02-11 | Texaco Inc. | Hydrocarbon treating process |
US5069890A (en) * | 1989-06-19 | 1991-12-03 | Texaco Inc. | Zeolite treating process |
US5350501A (en) * | 1990-05-22 | 1994-09-27 | Union Oil Company Of California | Hydrocracking catalyst and process |
US5112473A (en) * | 1990-06-04 | 1992-05-12 | Texaco Inc. | Hydrotreating or cracking process employing an acidified dealuminated Y-zeolite |
US5143878A (en) * | 1990-06-04 | 1992-09-01 | Texaco Inc. | Zeolite treating process |
US5227352A (en) * | 1990-06-29 | 1993-07-13 | Petroleum Energy Center | Catalyst composition for catalytic cracking of hydrocarbon oil and process for producing the same |
US5190903A (en) * | 1991-03-31 | 1993-03-02 | Uop | Low acidity Y zeolite |
US5242677A (en) * | 1992-06-11 | 1993-09-07 | Pq Corporation | Stable zeolite of low unit cell constant and method of making same |
-
1994
- 1994-08-30 US US08/298,158 patent/US5601798A/en not_active Expired - Fee Related
- 1994-09-06 EP EP94926687A patent/EP0719238A1/en not_active Withdrawn
- 1994-09-06 JP JP7508754A patent/JPH09502416A/en active Pending
- 1994-09-06 AU AU76452/94A patent/AU690141B2/en not_active Ceased
- 1994-09-06 CA CA002171196A patent/CA2171196A1/en not_active Abandoned
- 1994-09-06 CZ CZ96683A patent/CZ68396A3/en unknown
- 1994-09-06 BR BR9407423A patent/BR9407423A/en not_active Application Discontinuation
- 1994-09-06 WO PCT/US1994/009991 patent/WO1995007236A1/en not_active Application Discontinuation
- 1994-09-06 RU RU96107261A patent/RU2127227C1/en active
- 1994-09-06 SK SK305-96A patent/SK30596A3/en unknown
-
1996
- 1996-03-06 NO NO960909A patent/NO960909L/en unknown
- 1996-03-07 FI FI961071A patent/FI961071A/en not_active Application Discontinuation
Similar Documents
Publication | Publication Date | Title |
---|---|---|
RU96107261A (en) | METHOD OF OBTAINING ZEOLITE Y WITH AN INCREASED VOLUME OF MESOPOR | |
RU2003111021A (en) | METHODS FOR PRODUCING NATEGLINIDE CRYSTALS | |
RU97107016A (en) | METHOD FOR OBTAINING ALYUMOSILICATE DERIVATIVES | |
RU95117107A (en) | ANTICOAGULANT COMPOSITION, METHOD OF ITS PRODUCTION AND DEVICE | |
US5435987A (en) | Process for preparing ammonium zeolites of low alkali metal content | |
RU95109438A (en) | METHOD FOR PRODUCING ZEOLITES IN AMMONIUM FORM WITH A LOW CONTENT OF ALKALI METALS (OPTIONS) | |
AU8173987A (en) | Process for producing effervescent granulates, effervescent granulates thus produced and their use | |
ATE272041T1 (en) | PRODUCTION OF LACTIC ACID BY EVAPORATION CRYSTALLIZATION PROCESS | |
SU618342A1 (en) | Method of obtaining aluminium hydroxide | |
RU95117384A (en) | METHOD FOR PRODUCING FILTERING MATERIAL FOR REMOVING Manganese Ions from Water | |
SU997791A1 (en) | Method of producing carbomineral sorbent | |
RU96102888A (en) | METHOD FOR PRODUCING SILVER | |
RU2052384C1 (en) | Method for production of potassium fluorosulfatozirconates | |
RU99113509A (en) | METHOD FOR PRODUCING THE TECHNETSIA-99M GENERATOR | |
CN1041403C (en) | Purification process for directly preparing lithium bromide | |
SU1393791A1 (en) | Method of producing potassium nitrate and ammonium chloride | |
SU1692643A1 (en) | Method of preparing ion exchanger for extracting chrome from solutions | |
SU941293A1 (en) | Process for producing concentrated solution of titanium nitride | |
SU639896A1 (en) | Method of purifying di-2-ethylhexylphosphoric acid from mono-2-ethylhexylphosphoric acid | |
SU470501A1 (en) | The method of obtaining salts of alkaline earth elements | |
SU793964A1 (en) | Method of producing additional action fertilizer | |
SU463673A1 (en) | The method of selection of pyridoxal-5-phosphate | |
JPS6046917A (en) | Production of zeolite stable to hydrothermal treatment | |
SU495281A1 (en) | The method of sorption separation of niobium and titanium with their simultaneous concentration | |
RU93032767A (en) | METHOD OF OBTAINING HYDROXYLAPATITIS |