IL124739A0 - Process for the preparation of aqueous solutions of free hydroxylamine - Google Patents
Process for the preparation of aqueous solutions of free hydroxylamineInfo
- Publication number
- IL124739A0 IL124739A0 IL12473996A IL12473996A IL124739A0 IL 124739 A0 IL124739 A0 IL 124739A0 IL 12473996 A IL12473996 A IL 12473996A IL 12473996 A IL12473996 A IL 12473996A IL 124739 A0 IL124739 A0 IL 124739A0
- Authority
- IL
- Israel
- Prior art keywords
- hydroxylamine
- preparation
- aqueous solutions
- free hydroxylamine
- solution
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B21/00—Nitrogen; Compounds thereof
- C01B21/082—Compounds containing nitrogen and non-metals and optionally metals
- C01B21/14—Hydroxylamine; Salts thereof
- C01B21/1409—Preparation
- C01B21/1445—Preparation of hydoxylamine from its salts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/14—Fractional distillation or use of a fractionation or rectification column
- B01D3/143—Fractional distillation or use of a fractionation or rectification column by two or more of a fractionation, separation or rectification step
- B01D3/146—Multiple effect distillation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/34—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping with one or more auxiliary substances
- B01D3/38—Steam distillation
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B21/00—Nitrogen; Compounds thereof
- C01B21/082—Compounds containing nitrogen and non-metals and optionally metals
- C01B21/14—Hydroxylamine; Salts thereof
- C01B21/1463—Concentration
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B21/00—Nitrogen; Compounds thereof
- C01B21/082—Compounds containing nitrogen and non-metals and optionally metals
- C01B21/14—Hydroxylamine; Salts thereof
- C01B21/1472—Separation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Compounds Of Unknown Constitution (AREA)
- Disintegrating Or Milling (AREA)
- Seasonings (AREA)
- Gas Separation By Absorption (AREA)
- Extraction Or Liquid Replacement (AREA)
Abstract
A process is disclosed for producing an aqueous solution of free hydroxylamine. A solution obtained by treating an hydroxylammonium salt with a base is treated with water or water vapour at a temperature >/= 80 DEG C, so as to separate the solution into an aqueous hydroxylamine fraction and a salt fraction. This process is soft and easy to implement on a large scale. The risk of decomposition is minimised because of the low thermal stresses, the low hydroxylamine concentration and the short dwelling time during implementation of the process.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19547758 | 1995-12-20 | ||
| US08/688,281 US5837107A (en) | 1995-12-20 | 1996-07-29 | Process for production of aqueous solutions of free hydroxylamine |
| PCT/EP1996/005773 WO1997022551A1 (en) | 1995-12-20 | 1996-12-20 | Process for producing aqueous solutions of free hydroxylamine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IL124739A0 true IL124739A0 (en) | 1999-01-26 |
| IL124739A IL124739A (en) | 2001-06-14 |
Family
ID=26021480
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IL12473796A IL124737A (en) | 1995-12-20 | 1996-12-20 | Process for separating a fraction containing middle boilers from a mixture of low, middle and high boilers |
| IL12473996A IL124739A (en) | 1995-12-20 | 1996-12-20 | Process for the preparation of aqueous solutions of free hydroxylamine |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IL12473796A IL124737A (en) | 1995-12-20 | 1996-12-20 | Process for separating a fraction containing middle boilers from a mixture of low, middle and high boilers |
Country Status (16)
| Country | Link |
|---|---|
| EP (2) | EP0868398B1 (en) |
| JP (2) | JP4376969B2 (en) |
| CN (2) | CN1102531C (en) |
| AT (1) | ATE222565T1 (en) |
| AU (2) | AU707648B2 (en) |
| BR (2) | BR9612053A (en) |
| CA (2) | CA2239791C (en) |
| DE (2) | DE59609239D1 (en) |
| DK (1) | DK0868399T3 (en) |
| ES (2) | ES2177828T3 (en) |
| HR (1) | HRP960601B1 (en) |
| IL (2) | IL124737A (en) |
| NO (2) | NO319309B1 (en) |
| PT (1) | PT868399E (en) |
| TR (2) | TR199801154T2 (en) |
| WO (2) | WO1997022551A1 (en) |
Families Citing this family (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19725851A1 (en) * | 1997-06-18 | 1998-12-24 | Basf Ag | Process for the preparation of high-purity, aqueous hydroxylamine solutions |
| US5788946A (en) * | 1997-07-16 | 1998-08-04 | Ashland Inc. | Purification of hydroxylamine |
| DE19733681A1 (en) | 1997-08-04 | 1999-02-11 | Basf Ag | Process for the preparation of an aqueous solution of free hydroxylamine |
| DE19806578A1 (en) * | 1998-02-17 | 1999-08-19 | Basf Ag | Production of aqueous hydroxylamine solution containing essentially no metal ions, used in electronics industry |
| US6235162B1 (en) | 1998-05-28 | 2001-05-22 | Sachem, Inc. | Ultrapure hydroxylamine compound solutions and process of making same |
| DE19936594A1 (en) | 1999-08-04 | 2001-02-08 | Basf Ag | Process for the preparation of high-purity stabilized hydroxylamine solutions |
| DE10004818A1 (en) * | 2000-02-04 | 2001-08-09 | Basf Ag | Process for recycling stripper solutions containing hydroxylamine |
| JP3503115B2 (en) * | 2000-06-27 | 2004-03-02 | 東レ・ファインケミカル株式会社 | Method for producing free hydroxylamine aqueous solution |
| DE10037774A1 (en) * | 2000-08-03 | 2002-02-14 | Bayer Ag | Method and device for obtaining organic substances from a gas mixture containing these substances |
| DE10131787A1 (en) * | 2001-07-04 | 2003-01-16 | Basf Ag | Process for the preparation of a salt-free, aqueous hydroxylamine solution |
| DE10134389A1 (en) | 2001-07-04 | 2003-01-16 | Basf Ag | Process for the preparation of a salt-free, aqueous hydroxylamine solution |
| DE10131788A1 (en) | 2001-07-04 | 2003-01-16 | Basf Ag | Process for the preparation of a salt-free, aqueous hydroxylamine solution |
| DE10314492B4 (en) * | 2003-03-27 | 2008-10-16 | Domo Caproleuna Gmbh | Process for the preparation of an aqueous solution of hydroxylamine |
| US7491846B2 (en) | 2003-08-13 | 2009-02-17 | Showa Denko K.K. | Process for producing hydroxylamine |
| JP4578885B2 (en) * | 2003-08-13 | 2010-11-10 | 昭和電工株式会社 | Method for producing hydroxylamine |
| TW200508176A (en) * | 2003-08-13 | 2005-03-01 | Showa Denko Kk | Process for producing hydroxylamine |
| FR2860223B1 (en) * | 2003-09-26 | 2005-12-16 | Jean Pierre Schirmann | PROCESS FOR PRODUCING AQUEOUS HYDROXYLAMINE BASE SOLUTIONS |
| US7396519B2 (en) | 2004-01-26 | 2008-07-08 | San Fu Chemical Company, Ltd. | Preparation of a high purity and high concentration hydroxylamine free base |
| JP2005239702A (en) * | 2004-01-28 | 2005-09-08 | Showa Denko Kk | Method for producing hydroxylamine |
| JP2006056742A (en) * | 2004-08-19 | 2006-03-02 | Hosoya Fireworks Co Ltd | Method for producing aqueous solution of hydroxylamine nitrate |
| JP4578988B2 (en) * | 2005-01-21 | 2010-11-10 | 昭和電工株式会社 | Method for producing hydroxylamine |
| JP4578999B2 (en) * | 2005-02-10 | 2010-11-10 | 昭和電工株式会社 | Method for producing hydroxylamine |
| JP2006219343A (en) * | 2005-02-10 | 2006-08-24 | Showa Denko Kk | Method for producing hydroxylamine |
| JP4578998B2 (en) * | 2005-02-10 | 2010-11-10 | 昭和電工株式会社 | Method for producing hydroxylamine |
| DE102005032430A1 (en) * | 2005-07-12 | 2007-01-25 | Bayer Materialscience Ag | Process for the preparation of toluenediamine |
| WO2017204936A1 (en) | 2016-05-26 | 2017-11-30 | Exxonmobil Chemical Patents Inc. | Production of cyclic imides suitable for oxidation catalysis |
| US11161812B2 (en) | 2016-05-26 | 2021-11-02 | Exxonmobil Chemical Patents Inc. | Production of cyclic imides suitable for oxidation catalysis |
| WO2018075176A1 (en) | 2016-10-18 | 2018-04-26 | Exxonmobil Chemical Patents Inc. | Cyclic imide slurry compositions |
| CN108946741B (en) * | 2017-05-17 | 2020-05-12 | 新特能源股份有限公司 | Process method for recovering silicon-containing high-boiling-point substance in polycrystalline silicon cold hydrogenation process and cold hydrogenation process |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4111759A (en) * | 1976-07-08 | 1978-09-05 | United States Steel Corporation | Process for separating ammonia and acid gases from waste waters containing fixed ammonia salts |
| JPS597313B2 (en) * | 1980-02-08 | 1984-02-17 | チツソエンジニアリング株式会社 | Alcohol distillation equipment |
| DE3302525A1 (en) * | 1983-01-26 | 1984-07-26 | Basf Ag, 6700 Ludwigshafen | DISTILLATION COLUMN FOR THE DISTILLATIVE DISASSEMBLY OF AN INLET PRODUCT MULTIPLE FRACTIONS |
| DE3528463A1 (en) * | 1985-08-08 | 1987-02-19 | Basf Ag | Process for the preparation of aqueous solutions of free hydroxylamine |
| DE3814255A1 (en) * | 1988-04-27 | 1989-11-09 | Metallgesellschaft Ag | DEVICE FOR DESODORING ORGANIC LIQUIDS |
| US5266290A (en) * | 1992-07-10 | 1993-11-30 | Thiokol Corporation | Process for making high purity hydroxylammonium nitrate |
| DE4324410C1 (en) * | 1993-07-21 | 1994-08-04 | Enviro Consult Ingenieurgesell | Removing ammonium from process water in effluent water treatment units |
| US5385646A (en) * | 1993-09-03 | 1995-01-31 | Farmland Industries, Inc. | Method of treating chemical process effluent |
-
1996
- 1996-12-19 HR HR960601A patent/HRP960601B1/en not_active IP Right Cessation
- 1996-12-20 TR TR1998/01154T patent/TR199801154T2/en unknown
- 1996-12-20 CA CA002239791A patent/CA2239791C/en not_active Expired - Lifetime
- 1996-12-20 ES ES96944615T patent/ES2177828T3/en not_active Expired - Lifetime
- 1996-12-20 AU AU13040/97A patent/AU707648B2/en not_active Expired
- 1996-12-20 BR BR9612053A patent/BR9612053A/en not_active IP Right Cessation
- 1996-12-20 PT PT96944616T patent/PT868399E/en unknown
- 1996-12-20 TR TR1998/01163T patent/TR199801163T2/en unknown
- 1996-12-20 IL IL12473796A patent/IL124737A/en not_active IP Right Cessation
- 1996-12-20 EP EP96944615A patent/EP0868398B1/en not_active Expired - Lifetime
- 1996-12-20 EP EP96944616A patent/EP0868399B1/en not_active Expired - Lifetime
- 1996-12-20 BR BR9612073A patent/BR9612073A/en not_active IP Right Cessation
- 1996-12-20 IL IL12473996A patent/IL124739A/en not_active IP Right Cessation
- 1996-12-20 ES ES96944616T patent/ES2181933T3/en not_active Expired - Lifetime
- 1996-12-20 WO PCT/EP1996/005773 patent/WO1997022551A1/en active IP Right Grant
- 1996-12-20 AT AT96944616T patent/ATE222565T1/en active
- 1996-12-20 DE DE59609239T patent/DE59609239D1/en not_active Expired - Lifetime
- 1996-12-20 CN CN96199954A patent/CN1102531C/en not_active Expired - Lifetime
- 1996-12-20 CA CA002239253A patent/CA2239253C/en not_active Expired - Lifetime
- 1996-12-20 JP JP52252397A patent/JP4376969B2/en not_active Expired - Lifetime
- 1996-12-20 DE DE59609580T patent/DE59609580D1/en not_active Expired - Lifetime
- 1996-12-20 AU AU13039/97A patent/AU704998B2/en not_active Expired
- 1996-12-20 WO PCT/EP1996/005772 patent/WO1997022550A1/en active IP Right Grant
- 1996-12-20 JP JP9522524A patent/JP2000505033A/en active Pending
- 1996-12-20 DK DK96944616T patent/DK0868399T3/en active
- 1996-12-20 CN CN96199143A patent/CN1104376C/en not_active Expired - Lifetime
-
1998
- 1998-06-19 NO NO19982847A patent/NO319309B1/en not_active IP Right Cessation
- 1998-06-19 NO NO19982849A patent/NO322631B1/en not_active IP Right Cessation
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FF | Patent granted | ||
| KB | Patent renewed | ||
| KB | Patent renewed | ||
| KB | Patent renewed | ||
| KB | Patent renewed | ||
| KB | Patent renewed | ||
| EXP | Patent expired |