BR8400575A - Metodo para melhorar as propriedades de dinamica de adsorcao de zeolitos de aluminossilicato de sodio e aperfeicoamento em metodo de separacao de gas por adsorcao seletiva,por oscilacao de pressao ou adsorcao seletiva por oscilacao termica de um componente de uma corrente de gas mista - Google Patents
Metodo para melhorar as propriedades de dinamica de adsorcao de zeolitos de aluminossilicato de sodio e aperfeicoamento em metodo de separacao de gas por adsorcao seletiva,por oscilacao de pressao ou adsorcao seletiva por oscilacao termica de um componente de uma corrente de gas mistaInfo
- Publication number
- BR8400575A BR8400575A BR8400575A BR8400575A BR8400575A BR 8400575 A BR8400575 A BR 8400575A BR 8400575 A BR8400575 A BR 8400575A BR 8400575 A BR8400575 A BR 8400575A BR 8400575 A BR8400575 A BR 8400575A
- Authority
- BR
- Brazil
- Prior art keywords
- adsorcation
- selective
- thermal
- composition
- perfecting
- Prior art date
Links
- 229910000503 Na-aluminosilicate Inorganic materials 0.000 title 1
- 229910021536 Zeolite Inorganic materials 0.000 title 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- 230000010355 oscillation Effects 0.000 title 1
- 238000000926 separation method Methods 0.000 title 1
- 235000012217 sodium aluminium silicate Nutrition 0.000 title 1
- 239000000429 sodium aluminium silicate Substances 0.000 title 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 title 1
- 238000001179 sorption measurement Methods 0.000 title 1
- 239000010457 zeolite Substances 0.000 title 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/16—Alumino-silicates
- B01J20/18—Synthetic zeolitic molecular sieves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/0462—Temperature swing adsorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/047—Pressure swing adsorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/16—Alumino-silicates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/16—Alumino-silicates
- B01J20/18—Synthetic zeolitic molecular sieves
- B01J20/186—Chemical treatments in view of modifying the properties of the sieve, e.g. increasing the stability or the activity, also decreasing the activity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/106—Silica or silicates
- B01D2253/108—Zeolites
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/0407—Constructional details of adsorbing systems
- B01D53/0423—Beds in columns
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S95/00—Gas separation: processes
- Y10S95/90—Solid sorbent
- Y10S95/902—Molecular sieve
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Inorganic Chemistry (AREA)
- Organic Chemistry (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Separation Of Gases By Adsorption (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/465,845 US4529416A (en) | 1983-02-11 | 1983-02-11 | Gas separation kinetics in commercial pellets |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR8400575A true BR8400575A (pt) | 1984-09-18 |
Family
ID=23849396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR8400575A BR8400575A (pt) | 1983-02-11 | 1984-02-10 | Metodo para melhorar as propriedades de dinamica de adsorcao de zeolitos de aluminossilicato de sodio e aperfeicoamento em metodo de separacao de gas por adsorcao seletiva,por oscilacao de pressao ou adsorcao seletiva por oscilacao termica de um componente de uma corrente de gas mista |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US4529416A (pt) |
| EP (1) | EP0128998B1 (pt) |
| JP (1) | JPS59154136A (pt) |
| KR (1) | KR870000267B1 (pt) |
| BR (1) | BR8400575A (pt) |
| CA (1) | CA1210748A (pt) |
| DE (1) | DE3472218D1 (pt) |
| ES (2) | ES529627A0 (pt) |
| MX (1) | MX166613B (pt) |
| ZA (1) | ZA84970B (pt) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4762537A (en) * | 1985-11-07 | 1988-08-09 | Aluminum Company Of America | Adsorbent for HCl comprising alumina and acid-treated Y zeolite |
| DE3880819T2 (de) * | 1988-02-11 | 1993-08-19 | Air Liquide | Gastrennung. |
| US5980611A (en) * | 1997-09-25 | 1999-11-09 | The Boc Group, Inc. | Air purification process |
| US6395070B1 (en) * | 1998-10-06 | 2002-05-28 | Matheson Tri-Gas, Inc. | Methods for removal of impurity metals from gases using low metal zeolites |
| US6379436B1 (en) * | 2000-04-12 | 2002-04-30 | Engelhard Corporation | Macroporaus aluminosilicate desiccant, preparation from sodalite and use in enthalpy energy wheels |
| US6506236B2 (en) * | 2001-03-28 | 2003-01-14 | Air Products And Chemicals, Inc. | Process for reducing the level of carbon dioxide in a gaseous mixture |
| KR101044402B1 (ko) * | 2005-12-14 | 2011-06-27 | 타이요 닛폰 산소 가부시키가이샤 | 공기 액화분리에 있어서의 원료 공기의 정제방법 및정제장치 |
| US8444750B2 (en) * | 2007-05-18 | 2013-05-21 | Exxonmobil Research And Engineering Company | Removal of CO2, N2, or H2S from gas mixtures by swing adsorption with low mesoporosity adsorbent contactors |
| US8529663B2 (en) * | 2007-05-18 | 2013-09-10 | Exxonmobil Research And Engineering Company | Process for removing a target gas from a mixture of gases by swing adsorption |
| US7938886B2 (en) * | 2007-05-18 | 2011-05-10 | Exxonmobil Research And Engineering Company | Process for removing a target gas from a mixture of gases by thermal swing adsorption |
| US7959720B2 (en) * | 2007-05-18 | 2011-06-14 | Exxonmobil Research And Engineering Company | Low mesopore adsorbent contactors for use in swing adsorption processes |
| US8529664B2 (en) * | 2007-05-18 | 2013-09-10 | Exxonmobil Research And Engineering Company | Removal of a target gas from a mixture of gases by swing adsorption with use of a turboexpander |
| US8529662B2 (en) * | 2007-05-18 | 2013-09-10 | Exxonmobil Research And Engineering Company | Removal of heavy hydrocarbons from gas mixtures containing heavy hydrocarbons and methane |
| US8545602B2 (en) * | 2007-05-18 | 2013-10-01 | Exxonmobil Research And Engineering Company | Removal of CO2, N2, and H2S from gas mixtures containing same |
| CN112744788B (zh) * | 2020-12-16 | 2022-09-23 | 四川天采科技有限责任公司 | 一种氟硅酸法生产无水HF精制的FTrPSA深度脱水除杂的分离与净化方法 |
Family Cites Families (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1844476A (en) * | 1927-07-26 | 1932-02-09 | Universal Oil Prod Co | Treatment of adsorbent earths |
| US2487824A (en) * | 1946-12-12 | 1949-11-15 | Houdry Process Corp | Catalytic conversion of hydrocarbons |
| US2472489A (en) * | 1947-10-18 | 1949-06-07 | Standard Oil Dev Co | Preparation of clay catalysts |
| US2671058A (en) * | 1951-07-21 | 1954-03-02 | Filtrol Corp | Process for preparation of acid activated clay |
| US2882244A (en) * | 1953-12-24 | 1959-04-14 | Union Carbide Corp | Molecular sieve adsorbents |
| US2944627A (en) * | 1958-02-12 | 1960-07-12 | Exxon Research Engineering Co | Method and apparatus for fractionating gaseous mixtures by adsorption |
| NL255368A (pt) * | 1959-09-25 | |||
| US3202518A (en) * | 1961-06-05 | 1965-08-24 | Norton Co | Method of making high surface area ceramics |
| NL287258A (pt) * | 1962-01-08 | |||
| US3436357A (en) * | 1962-05-17 | 1969-04-01 | Mobil Oil Corp | Catalyst and conversion of organic compounds in the presence thereof |
| US3242641A (en) * | 1962-10-24 | 1966-03-29 | Monsanto Co | Purification of polymerizable olefin hydrocarbons |
| US3280536A (en) * | 1963-07-30 | 1966-10-25 | Exxon Research Engineering Co | Method for providing an oxygen-enriched environment |
| FR1553934A (pt) * | 1967-12-05 | 1969-01-17 | ||
| US3551353A (en) * | 1968-10-04 | 1970-12-29 | Mobil Oil Corp | Dealuminzation of mordenite |
| US3564816A (en) * | 1968-12-30 | 1971-02-23 | Union Carbide Corp | Selective adsorption process |
| US3597155A (en) * | 1969-02-14 | 1971-08-03 | Union Carbide Corp | Crystalline mm and process for manufacture thereof |
| US3641095A (en) * | 1969-10-29 | 1972-02-08 | Norton Co | Bonded low-alumina mordenite |
| US3636679A (en) * | 1971-01-04 | 1972-01-25 | Union Carbide Corp | Selective adsorption gas separation process |
| US3738087A (en) * | 1971-07-01 | 1973-06-12 | Union Carbide Corp | Selective adsorption gas separation process |
| BE792039A (fr) * | 1971-11-30 | 1973-05-29 | Air Liquide | Procede et installation de fractionnement d'un melange gazeux par adsorption |
| JPS5817653B2 (ja) * | 1972-09-28 | 1983-04-08 | ジユ−ト − ヒエミ− ア−ゲ− | 吸着剤の製造方法 |
| GB1449864A (en) * | 1973-10-24 | 1976-09-15 | Boc International Ltd | Adsorption system |
| US3957463A (en) * | 1973-12-12 | 1976-05-18 | Air Products And Chemicals, Inc. | Oxygen enrichment process |
| AR207266A1 (es) * | 1974-10-30 | 1976-09-22 | Union Carbide Corp | Procedimiento oscilante adiabatico de presion para la separacion de aire |
| US4013429A (en) * | 1975-06-04 | 1977-03-22 | Air Products And Chemicals, Inc. | Fractionation of air by adsorption |
| JPS5289570A (en) * | 1976-01-22 | 1977-07-27 | Asahi Chem Ind Co Ltd | Gaseous phase separation |
| US4147521A (en) * | 1977-12-15 | 1979-04-03 | Nalco Chemical Company | Acid washed montmorillonite clays for improving electrostatic precipitation of dust particles |
| US4264340A (en) * | 1979-02-28 | 1981-04-28 | Air Products And Chemicals, Inc. | Vacuum swing adsorption for air fractionation |
-
1983
- 1983-02-11 US US06/465,845 patent/US4529416A/en not_active Expired - Fee Related
-
1984
- 1984-02-07 CA CA000446943A patent/CA1210748A/en not_active Expired
- 1984-02-09 ZA ZA84970A patent/ZA84970B/xx unknown
- 1984-02-10 ES ES529627A patent/ES529627A0/es active Granted
- 1984-02-10 EP EP84101393A patent/EP0128998B1/en not_active Expired
- 1984-02-10 MX MX200289A patent/MX166613B/es unknown
- 1984-02-10 DE DE8484101393T patent/DE3472218D1/de not_active Expired
- 1984-02-10 BR BR8400575A patent/BR8400575A/pt unknown
- 1984-02-10 JP JP59022068A patent/JPS59154136A/ja active Pending
- 1984-02-11 KR KR1019840000652A patent/KR870000267B1/ko not_active Expired
-
1985
- 1985-06-14 ES ES544168A patent/ES8607748A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE3472218D1 (en) | 1988-07-28 |
| EP0128998A2 (en) | 1984-12-27 |
| JPS59154136A (ja) | 1984-09-03 |
| ES544168A0 (es) | 1986-06-01 |
| MX166613B (es) | 1993-01-21 |
| KR870000267B1 (ko) | 1987-02-23 |
| ES8602538A1 (es) | 1985-12-01 |
| KR840007532A (ko) | 1984-12-08 |
| ES529627A0 (es) | 1985-12-01 |
| CA1210748A (en) | 1986-09-02 |
| ES8607748A1 (es) | 1986-06-01 |
| EP0128998A3 (en) | 1985-04-17 |
| ZA84970B (en) | 1985-10-30 |
| EP0128998B1 (en) | 1988-06-22 |
| US4529416A (en) | 1985-07-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| BR8400575A (pt) | Metodo para melhorar as propriedades de dinamica de adsorcao de zeolitos de aluminossilicato de sodio e aperfeicoamento em metodo de separacao de gas por adsorcao seletiva,por oscilacao de pressao ou adsorcao seletiva por oscilacao termica de um componente de uma corrente de gas mista | |
| FI863786A7 (fi) | Mikrosoluiset, energiapitoiset komposiittimateriaalit ja menetelmä niiden valmistamiseksi. | |
| FI812601A7 (fi) | Imukykyisiä tuotteita, menetelmä ja koostumuksia hienojakoisten absorbenttien immobilisoimiseksi. | |
| KR910019666A (ko) | 개선된 공기분리 압력 스윙 흡착 방법 | |
| BR7908286A (pt) | Processo para produzir zeolitos de aluminosilicato de sodio,processos para produzir zeolitos a, x e y, zeolitos produzidos pelos processos, processo para produzir uma combinacao de zeolito a e zeolito x, composicao para diminuir a dureza da agua, detergente, papel, borracha, plastico, pigmento laminador e processo para a preparacao de uma solucao de silicato de sodio | |
| BR9713659A (pt) | Processo para a preparação de zeólitos, e, zeólito. | |
| NO780078L (no) | Anordning for overfoering av friskluft eller luft som er forurenset med gasser, damper, mindre partikler etc. i den ene eller annen retning mellom to steder | |
| DK435685A (da) | Carbondioxidsorbenter til anvendelse med emballerede foedevarer | |
| IT8322185A0 (it) | Nuovi derivati benzotiazepinonici, metodo per la loro preparazione e composizioni farmaceutiche che licontengono. | |
| ES2115166T3 (es) | Separacion por adsorcion mejorada de meta-xileno a partir de hidrocarburos aromaticos. | |
| DK0727416T3 (da) | Substituerede benzensulfonylurinstoffer og -thiourinstoffer, og fremgangsmåde til deres fremstilling, deres anvendelse som | |
| KR910001015A (ko) | 텍스타일 세제용 증진제 | |
| GB1215640A (en) | Method of treating a selective adsorbent | |
| KR920009773A (ko) | N－아세틸－파라－아미노페놀의 정제방법 | |
| KR930019219A (ko) | 만성 피로 증후군 치료제 | |
| JPS57204211A (en) | Membrane for purifying mineral oil | |
| DE3381554D1 (de) | Kombination zur absorbierung verschiedener kationen. | |
| NO158806C (no) | Organosilisiummodifiserte polydiener, fremgangsmaate til deres fremstilling og deres anvendelse som demulgatorer forjordolje. | |
| NO885348D0 (no) | Asbestfritt materiale for anvendelse som tetnings-, dempnings- og/eller skilleelement. | |
| AU555609B2 (en) | Ferrosilicate molecular sieve compositions | |
| BR8604750A (pt) | Derivado de fenoxietanona,processo para a preparacao de compostos,composicao e processo para combater ou proteger uma infestacao por microorganismos | |
| ES2043896T3 (es) | Procedimiento para la preparacion de derivados de tetrahidropiridina. | |
| KR830009203A (ko) | 조미료(구루타민산소다)폐액을 이용한 무연탄 점결제의 제조방법 | |
| NO983552L (no) | Ny s°tningssammensetning med umiddelbar oppl°selighet inneholdende neohesperidindihydrokalkon og minst ett annet h°yintensitets-s°tningsmiddel | |
| IT8319461A0 (it) | Composizione del gel per la determinazione del fibrinogeno nel plasma mediante eletroimmunodiffusione. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| B15K | Others concerning applications: alteration of classification |
Ipc: B01D 53/02 (2006.01), B01D 53/04 (2006.0 |