WO2000002815A2 - Verfahren zur abreicherung des bromidgehaltes aus einer wässrigen bromid enthaltenden lösung unter verwendung von wasserstoffperoxid - Google Patents
Verfahren zur abreicherung des bromidgehaltes aus einer wässrigen bromid enthaltenden lösung unter verwendung von wasserstoffperoxid Download PDFInfo
- Publication number
- WO2000002815A2 WO2000002815A2 PCT/EP1999/004515 EP9904515W WO0002815A2 WO 2000002815 A2 WO2000002815 A2 WO 2000002815A2 EP 9904515 W EP9904515 W EP 9904515W WO 0002815 A2 WO0002815 A2 WO 0002815A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bromide
- solution
- hydrogen peroxide
- content
- magnesium chloride
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F5/00—Compounds of magnesium
- C01F5/26—Magnesium halides
- C01F5/30—Chlorides
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K33/00—Medicinal preparations containing inorganic active ingredients
- A61K33/14—Alkali metal chlorides; Alkaline earth metal chlorides
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B7/00—Halogens; Halogen acids
- C01B7/09—Bromine; Hydrogen bromide
- C01B7/096—Bromine
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D3/00—Halides of sodium, potassium or alkali metals in general
- C01D3/14—Purification
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/80—Compositional purity
Definitions
- the present invention relates to a method for depleting the bromide content of a solution using hydrogen peroxide.
- the present invention also relates to a method in which, in addition to the bromide content, the bromate content is also reduced.
- the maximum bromide content of chemical compounds used is problematic in many fields of application, for example in chemistry or pharmacy. It is important to comply with maximum limits for the bromide concentration, among other things. in the pharmaceutical industry.
- bromide content is a major problem, because numerous anions of, for example, alkali and alkaline earth metal salts are associated with bromide. For example, this applies to naturally occurring alkali and alkaline earth chlorides.
- a method for reducing the bromide content with which such a total bromine content of a compound can be achieved is, for example, introducing gaseous chlorine into a solution of the corresponding compound in a suitable solvent, for example water.
- DE-A 21 18 623 discloses a process for purifying aqueous magnesium chloride solutions in which the bromide content is reduced by introducing chlorine gas into these solutions.
- DE-A 26 13 28 describes a process for the preparation of highly concentrated magnesium chloride solutions.
- the bromination described in this document takes place by means of gaseous chlorine in the heat.
- the present invention relates to a method for depleting the bromide content of a solution using hydrogen peroxide.
- the most important compounds whose solutions for depleting the bromide content are treated by the process according to the invention include alkali and alkaline earth compounds.
- the present invention therefore also relates to a process which is characterized in that the aqueous solution is a solution of alkali and / or alkaline earth compounds.
- the present invention relates to a method which is characterized in that the alkali and alkaline earth compounds are alkali and alkaline earth chlorides.
- the pH of the solution, the bromide content of which is to be depleted, is in the process according to the invention generally in the range ⁇ 7, preferably in the range ⁇ 6, and particularly preferably in the range ⁇ 5.
- the present invention therefore relates to a process as described above, which is characterized in that the aqueous solution has a pH of ⁇ 5 during depletion.
- the pH of the solution is adjusted to the desired value using acids or bases, depending on the starting value of the pH of the solution.
- the addition of acids is necessary to bring the pH to the desired values as described above.
- Inorganic acids are preferably used as acids.
- Hydrochloric acid is particularly preferred. It is of course possible within the scope of the process according to the invention to add the acid in the gaseous state to the solution, if necessary. However, the addition of the acid in solution is preferred.
- the required amount of acid can be adapted to the operational requirements of the experiment. It should only be noted that after adding the acid and hydrogen peroxide, the pH of the solution is in the desired range, as described above.
- the free acid content of the solution to be supplied is preferably in the range from 0.01 to 25% by weight, particularly preferably in the range from 0.1 to 10% by weight and in particular in the range from 0.3 to 5% by weight. %.
- the order of addition of acid and hydrogen peroxide is generally not critical. It is conceivable, for example, that acid is first added to the solution to be depleted and then hydrogen peroxide. The reverse order is also possible.
- the bromine formed by oxidation in the course of the process can be removed from the solution in the process according to the invention by all processes known from the prior art.
- the abortion process can be carried out by boiling or stripping the solution. It is also conceivable to apply a vacuum to the solution.
- the present invention also relates to a process as described above, which is characterized in that the bromine formed during the depletion is removed from the solution by boiling the solution, stripping the solution and / or by applying a vacuum to the solution. If bromine is removed from the solution by stripping alone, air is blown into the solution with a throughput of generally 1 to 100, preferably 2 to 50, particularly preferably 3 to 20 1 / min.
- bromide contents are found in the process according to the invention after depletion, which are ⁇ 500 ppm, preferably ⁇ 300 ppm, particularly preferably ⁇ 100 ppm, further particularly preferably ⁇ 50 ppm, in particular at ⁇ 25 ppm.
- the present invention also relates to a process as described above, which is characterized in that the bromide content of the depleted solution is less than 25 ppm.
- Another advantage of the process according to the invention is that bromate, if present, can also be removed from the solution simultaneously with bromide.
- the present invention therefore also relates to a process as described above, which is characterized in that the bromate content of the solution is reduced in addition to the bromide content.
- Hydrogen peroxide is particularly useful when the bromate content of the solution is higher than its bromide content.
- the invention relates to the use of hydrogen peroxide for the depletion of bromide from an bromide-containing aqueous solution.
- the present invention further relates to the use of hydrogen peroxide for the depletion of bromate from bromide and bromate-containing aqueous solutions.
- the present invention also relates to the use of hydrogen peroxide to remove bromide or bromate or a mixture of bromide and bromate from an aqueous solution which is used in the manufacture of medicaments.
- the present invention further relates to high-purity magnesium chloride for hemodialysis, hemofiltration or peritoneal dialysis solutions and parental applications, in particular infusion solutions, which can be prepared by crystallizing a magnesium chloride solution, characterized in that the bromide content of the magnesium chloride solution was depleted using hydrogen peroxide before crystallization.
- An aqueous solution contained 67% by weight of MgCl 2 6 H 2 O, 0.093% by weight of bromide and 2% by weight of free HCl.
- the beakers were used, after the later addition of hydrogen peroxide, to drive off the bromine formed by boiling or stripping and to provide a suitable absorption by suction.
- the flask was used to drive off the resulting bromine by applying vacuum after the addition of hydrogen peroxide.
- the experiments were started after adding 5 g each of 35% by weight aqueous hydrogen peroxide solution to each individual solution.
- the solutions in the two beakers were heated to boiling or stripped by blowing in air at 4 1 / min.
- the total volume of the solution was kept constant by adding ultrapure water.
- the third experiment was carried out by applying vacuum (30 torr) to the flask.
- bromide contents of ⁇ 25 ppm were found in all three experiments according to ion chromatographic analysis.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medicinal Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Pharmacology & Pharmacy (AREA)
- Epidemiology (AREA)
- Animal Behavior & Ethology (AREA)
- Materials Engineering (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Treating Waste Gases (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Detergent Compositions (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU47799/99A AU4779999A (en) | 1998-07-07 | 1999-06-30 | Method for reducing the bromide content in an aqueous bromide-containing solution using hydrogen peroxide |
EP99931221A EP1144311B1 (de) | 1998-07-07 | 1999-06-30 | Verfahren zur abreicherung des bromidgehaltes aus einer wässrigen bromid enthaltenden lösung unter verwendung von wasserstoffperoxid |
DE59905114T DE59905114D1 (de) | 1998-07-07 | 1999-06-30 | Verfahren zur abreicherung des bromidgehaltes aus einer wässrigen bromid enthaltenden lösung unter verwendung von wasserstoffperoxid |
CA002336698A CA2336698A1 (en) | 1998-07-07 | 1999-06-30 | Method for reducing the bromide content in an aqueous bromide-containing solution using hydrogen peroxide |
AT99931221T ATE237557T1 (de) | 1998-07-07 | 1999-06-30 | Verfahren zur abreicherung des bromidgehaltes aus einer wässrigen bromid enthaltenden lösung unter verwendung von wasserstoffperoxid |
US09/743,297 US6761873B1 (en) | 1998-07-07 | 1999-06-30 | Method for reducing the bromide content in an aqueous bromide-containing solution using hydrogen peroxide |
HK02103737.0A HK1041868A1 (zh) | 1998-07-07 | 2002-05-17 | 用過氧化氫降低溴化物水溶液中溴化物含量的方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19830310A DE19830310A1 (de) | 1998-07-07 | 1998-07-07 | Verfahren zur Abreicherung des Bromidgehaltes aus einer wäßrigen Bromid enthaltenden Lösung unter Verwendung von Wasserstoffperoxid |
DE19830310.6 | 1998-07-07 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2000002815A2 true WO2000002815A2 (de) | 2000-01-20 |
WO2000002815A3 WO2000002815A3 (de) | 2001-09-07 |
Family
ID=7873229
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1999/004515 WO2000002815A2 (de) | 1998-07-07 | 1999-06-30 | Verfahren zur abreicherung des bromidgehaltes aus einer wässrigen bromid enthaltenden lösung unter verwendung von wasserstoffperoxid |
Country Status (9)
Country | Link |
---|---|
US (1) | US6761873B1 (de) |
EP (1) | EP1144311B1 (de) |
CN (1) | CN1121980C (de) |
AT (1) | ATE237557T1 (de) |
AU (1) | AU4779999A (de) |
CA (1) | CA2336698A1 (de) |
DE (2) | DE19830310A1 (de) |
HK (1) | HK1041868A1 (de) |
WO (1) | WO2000002815A2 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10033762A1 (de) * | 2000-07-12 | 2002-01-31 | Honeywell Specialty Chemicals | Verfahren zum Entbromen einer wäßrigen Salzlösung unter Verwendung von Ozon |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19839513B4 (de) * | 1998-08-29 | 2007-12-13 | Schüssler Entsorgungs-Management und Rohstoffhandel GmbH | Verfahren und Anlage zur Entbromung von Magnesiumchloridlösung |
DE10107943A1 (de) * | 2001-02-20 | 2002-08-22 | Schuessler Novachem Gmbh | Verfahren zur Entbromierung von Chloriden |
DE50102673D1 (de) * | 2001-05-16 | 2004-07-29 | Va Tech Wabag Deutschland Gmbh | Verfahren und Vorrichtung zur Entfernung von Bromid aus Wasser |
DE102008041164B4 (de) | 2008-08-11 | 2011-01-13 | Werthmann, Christine, Dr. | Verfahren zur Aufbereitung von Wasser |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2509517A1 (de) * | 1975-03-05 | 1976-09-09 | Kalk Chemische Fabrik Gmbh | Verfahren zur herstellung einer bromfreien alkali- oder erdalkalichloridloesung |
US4041154A (en) * | 1975-02-20 | 1977-08-09 | Verla-Pharm Arzneimittel-Fabrik Apotheker H. J. V. Ehrlich | Magnesium-containing pharmaceutical compositions |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NO124158B (de) * | 1970-04-16 | 1972-03-13 | Norsk Hydro As | |
FR2283089A1 (fr) * | 1974-08-02 | 1976-03-26 | Ugine Kuhlmann | Procede de fabrication du brome |
US4756838A (en) * | 1980-02-21 | 1988-07-12 | Veltman Preston Leonard | Preparation of dry dialysate products |
NO161851C (no) * | 1987-07-15 | 1989-10-04 | Norsk Hydro As | Fremgangsmaate for fremstilling av magnesiumklorid. |
BE1001209A3 (fr) * | 1987-11-19 | 1989-08-22 | Solvay | Compositions pharmaceutiques contenant un derive de l'acide 3-hydroxybutanoique choisi parmi les oligomeres de cet acide et les esters de cet acide ou de ces oligomeres avec du 1,3-butanediol. |
US5266295A (en) * | 1989-04-27 | 1993-11-30 | Akzo American Inc. | Hydrogen peroxide oxidation of bromide to bromide |
US5980854A (en) * | 1998-09-23 | 1999-11-09 | Noranda, Inc. | Method for the production of a magnesium chloride solution |
-
1998
- 1998-07-07 DE DE19830310A patent/DE19830310A1/de not_active Ceased
-
1999
- 1999-06-30 AU AU47799/99A patent/AU4779999A/en not_active Abandoned
- 1999-06-30 AT AT99931221T patent/ATE237557T1/de not_active IP Right Cessation
- 1999-06-30 US US09/743,297 patent/US6761873B1/en not_active Expired - Fee Related
- 1999-06-30 CN CN99808288A patent/CN1121980C/zh not_active Expired - Fee Related
- 1999-06-30 DE DE59905114T patent/DE59905114D1/de not_active Expired - Fee Related
- 1999-06-30 CA CA002336698A patent/CA2336698A1/en not_active Abandoned
- 1999-06-30 EP EP99931221A patent/EP1144311B1/de not_active Expired - Lifetime
- 1999-06-30 WO PCT/EP1999/004515 patent/WO2000002815A2/de active IP Right Grant
-
2002
- 2002-05-17 HK HK02103737.0A patent/HK1041868A1/zh unknown
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4041154A (en) * | 1975-02-20 | 1977-08-09 | Verla-Pharm Arzneimittel-Fabrik Apotheker H. J. V. Ehrlich | Magnesium-containing pharmaceutical compositions |
DE2509517A1 (de) * | 1975-03-05 | 1976-09-09 | Kalk Chemische Fabrik Gmbh | Verfahren zur herstellung einer bromfreien alkali- oder erdalkalichloridloesung |
Non-Patent Citations (2)
Title |
---|
"Europ{isches Arzneibuch, 3. Ausgabe" 1997 , DEUTSCHER APOTHEKER VERLAG , STUTTGART XP002118311 in der Anmeldung erw{hnt Seite 1234, Spalte 2 -Seite 1235, Spalte 1 * |
"Handbook of fine chemicals 1996-1997" 1996 , ALDRICH CATALOGUE XP002118312 Seite 941, Produkt Nummer 25,577-7 : Magnesium Chloride Hexahydrate, 99.995% * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10033762A1 (de) * | 2000-07-12 | 2002-01-31 | Honeywell Specialty Chemicals | Verfahren zum Entbromen einer wäßrigen Salzlösung unter Verwendung von Ozon |
Also Published As
Publication number | Publication date |
---|---|
WO2000002815A3 (de) | 2001-09-07 |
US6761873B1 (en) | 2004-07-13 |
AU4779999A (en) | 2000-02-01 |
EP1144311A2 (de) | 2001-10-17 |
HK1041868A1 (zh) | 2002-07-26 |
CA2336698A1 (en) | 2000-01-20 |
EP1144311A3 (de) | 2002-09-11 |
DE59905114D1 (de) | 2003-05-22 |
DE19830310A1 (de) | 2000-01-13 |
CN1121980C (zh) | 2003-09-24 |
CN1335822A (zh) | 2002-02-13 |
ATE237557T1 (de) | 2003-05-15 |
EP1144311B1 (de) | 2003-04-16 |
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