US3555696A - Process for the production of alkali perborates and percarbonates - Google Patents

Process for the production of alkali perborates and percarbonates Download PDF

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Publication number
US3555696A
US3555696A US844067A US3555696DA US3555696A US 3555696 A US3555696 A US 3555696A US 844067 A US844067 A US 844067A US 3555696D A US3555696D A US 3555696DA US 3555696 A US3555696 A US 3555696A
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United States
Prior art keywords
spray
alkali
active oxygen
sodium
weight
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Expired - Lifetime
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US844067A
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English (en)
Inventor
Horst Pistor
Hubert Schuster
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Evonik Operations GmbH
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Degussa GmbH
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Filing date
Publication date
Priority claimed from DE19681792273 external-priority patent/DE1792273B1/de
Priority claimed from DE19681814744 external-priority patent/DE1814744A1/de
Application filed by Degussa GmbH filed Critical Degussa GmbH
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Publication of US3555696A publication Critical patent/US3555696A/en
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    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B15/00—Peroxides; Peroxyhydrates; Peroxyacids or salts thereof; Superoxides; Ozonides
    • C01B15/055—Peroxyhydrates; Peroxyacids or salts thereof
    • C01B15/12—Peroxyhydrates; Peroxyacids or salts thereof containing boron
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B15/00—Peroxides; Peroxyhydrates; Peroxyacids or salts thereof; Superoxides; Ozonides
    • C01B15/055—Peroxyhydrates; Peroxyacids or salts thereof
    • C01B15/10—Peroxyhydrates; Peroxyacids or salts thereof containing carbon
    • C01B15/103—Peroxyhydrates; Peroxyacids or salts thereof containing carbon containing only alkali metals as metals

Definitions

  • the present invention is concerned with a process for the production of alkali perborate's and percarbonates by spray drying processes.
  • the alkali perborates and percarbonates also called alkali peroxoborates and alkali,
  • carbonate peroxohydrates are extensively used .for. the production of powdered washing, bleaching and, purifying agents.
  • the usual method for the productionro f' alkali perborates or percarbonates consists of reacting. the alkali I borate or carbonate with hydrogen peroxide, in aqueous solution whereby the active oxygen containing' com-" pounds precipitateas a 'crystallineproduct i They" are separated olf and carefully dried, I.
  • the stable base components are present as aqueous solutions in concentrations of 20 to 100 weight percent, in other words, the base components are capable of addition as aqueous or water free melts.
  • the active oxygen carrier of which hydrogen peroxide is most important are generally added in aqueous solutions of 25 to weight percent although the concentration can range from 5 to 95%.
  • alkali peroxides as sodium peroxide.
  • These solutions can be made stable by the addition of alkali or alkaline earth silicates or phosphates, e.g., sodium silicate, potassium silicate, sodium meta silicate, calcium silicate, sodium pyrophosphate, potassium pyrophosphate, sodium ortho phosphate, potassium ortho phosphate or alkaline earth halides, e.g., magnesium chloride.
  • alkali borates and carbonates e.g., sodium metaborate, borax, potassium metaborate, potassium tetraborate, sodium carbonate, potassium carbonate, sodium bicarbonate and potassium bicarbonate.
  • the base components can be added as such or in the form of alkali hydroxides, e.g., sodium metaborate, borax, potassium metaborate, potassium tetraborate, sodium carbonate, potassium carbonate, sodium bicarbonate and potassium bicarbonate.
  • the base components can be added as such or in the form of alkali hydroxides, e.g.,
  • sodium hydroxide or potassium hydroxide and borax or carbon dioxide or boric acid.
  • the atomization is carried out with conventional nozzles, preferably with compressed air atomization, above all if the materials to be sprayed are not highly fluid example, Ullmann, Enzyklopedie der
  • the temperature of the drying air is 602-00 C., that of the exit air which corresponds to about that of the sprayed product to about 40-100 C.
  • the technical advance of the process of the invention lies inthe possibility of spraying alkali perborate or percarbonate without-increased loss of active oxygen occurring as is the case with the customary crystallization process.
  • the loss is 5 to 8%.
  • the per compounds accumulate furthermore in such particle size that they can be homogeneously mixed with other washing agent con- .stit-uents rwithout difiiculty.
  • the process is especially suited for the production of products containing small quantities of water of crystallization with correspondingly high active oxygen contents.
  • inorganic salts which are added in the spray charge, it is possible to make up lower active oxygen content products.
  • examples of such inorganic salts are sodium sulfate, vpotassium sulfate, sodium carbonate, potassium carbonate, sodium orthophosphate, potassium orthophosphate.
  • inert salts When such inert salts are added they can be used in an amount of 2 to of the total composition.
  • the single figure of the drawing is a schematic diagram of an apparatus suitable for use according to the invention.
  • EXAMPLE 1 In order to produce a spray charge 134.3 parts by weight of sodium metaborate (NaBO was dissolved with heating to 40 C. in 289.7 parts by weight of water. This solution was sprayed into an atomization" drier over a period of 45 minutes. Shortly before the spray nozzle (about 6 inch) to the spray charge, there was homogeneously added 292 parts of hydrogen peroxide (23.7 weight percent in water), which contained 0.4% magnesium chloride (Mgcl The temperature of the drying percent) The temperature of the dryingair amounted to air amounted to 98 C. at the entrance to the tower and to 50 C. at the exit. There was obtained 206 grams of sodium perborate with an active oxygen content of 15.04% which corresponds to a yield based onthe active oxygen of 95%.
  • sodium metaborate NaBO was dissolved with heating to 40 C. in 289.7 parts by weight of water. This solution was sprayed into an atomization" drier over a period of 45 minutes. Shortly before the spray
  • EXAMPLE 2 To produce a spray charge 252 parts by weight of sodium metaborate (NaBO and 137 parts by weight of sodium sulfate (Na SO were dissolved in 1036 parts by 'weight of water with heating to 40 C. This solution was processed in the course of an hour in an atomization drier while there was added homogeneously to the liquid stream shortly (6 inch) before the spray nozzle 282 parts by weight of hydrogen peroxide (49 weight percent) which contained 0.5% magnesium chloride. The temperature of the drying air at the entrance to the tower was 163 C. and at the exit 93 C. There was obtained 544 grams of sodium perborate with an active oxygen content of 11.00%, corresponding to an active oxygen yield of 92%.
  • EXAMPLE 3 1094 parts by weight of potassium meta'borate (KBO were dissolved in 1734 parts by weight of water and cooled to 20 C. to form a spray charge. The solution was sprayed into an atomization drier in the course of 195 minutes. Shortly (6 inch) before the spray nozzle 2660 parts by weight of hydrogen peroxide (34.4 weight percent) containing 0.5% magnesium chloride (MgCI were homogeneously added. The temperature of the drying air at the entrance to the tower amounted to 103 C. and at the exit to 71 C. There were obtained 2030 grams of potas sium perborate with an active oxygen content of 20.11%, corresponding to an active oxygen yield of 95%;
  • EXAMPLE 4 This:solution was added to a spray towen-inthe course of to a yi eIdlof 95%, b'as fed on the active oxygen. f
  • EXAM L a spray charge 18.3 parts by lwei'ghtof sodiurn hydroxide (NaOI-L) were dissolvedin 91,5 parts by weight of water. This solution was sprayed into an atomization drier' in the course of 65 minutes. Shortly ('6inch). before the spray nozzle, there were h m gene usly dd d 87.2 parts by weight of borax (Na B O;, -10H Q) dissolved in 92.3 pa rfs'lby-weigh'tfof hydrogeni'peroxide (.35 weight 90? "the entrance: tothe tower and i048 C. atthe ex't Thereywere obtained 101 grams of. sodium perborate with an active oxygen content of 14.5% corresponding to i an active oxygen yield of 96% J.
  • borax Na B O;, -10H Q
  • a process for spray drying alkali perborate or'a'lkali percarbonate comprising employing as a spray charge the stable base component and adding the active oxygen carrier immediately before the atomization of the spray charge in the' sp ray tower andthere'afte'r drying the mix ture.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Detergent Compositions (AREA)
  • Glanulating (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
US844067A 1968-08-13 1969-07-23 Process for the production of alkali perborates and percarbonates Expired - Lifetime US3555696A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19681792273 DE1792273B1 (de) 1968-08-13 1968-08-13 Verfahren zur Herstellung von Alkaliperboraten und -percarbonaten
DE19681814744 DE1814744A1 (de) 1968-12-14 1968-12-14 Verfahren zur Herstellung von Alkaliperboraten und -percarbonaten

Publications (1)

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US3555696A true US3555696A (en) 1971-01-19

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US844067A Expired - Lifetime US3555696A (en) 1968-08-13 1969-07-23 Process for the production of alkali perborates and percarbonates

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US (1) US3555696A (enrdf_load_stackoverflow)
JP (1) JPS4933037B1 (enrdf_load_stackoverflow)
BE (1) BE737408A (enrdf_load_stackoverflow)
CH (2) CH553726A (enrdf_load_stackoverflow)
FR (1) FR2016936A1 (enrdf_load_stackoverflow)
GB (1) GB1280184A (enrdf_load_stackoverflow)
NL (1) NL6910222A (enrdf_load_stackoverflow)
SE (1) SE360805B (enrdf_load_stackoverflow)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4968500A (en) * 1988-02-13 1990-11-06 Degussa Aktiengesellschaft Continuous method for preparation of granulated sodium perborate
US5328721A (en) * 1992-07-30 1994-07-12 Fmc Corporation Process for manufacturing sodium carbonate perhydrate particles and coating them with sodium borosilicate
US5395602A (en) * 1989-12-19 1995-03-07 Degussa Aktiengesellschaft Method for the production of sodium perborate hydrate granulates
WO1997010173A1 (de) * 1995-09-11 1997-03-20 Solvay Interox Gmbh Verfahren zur herstellung von natriumpercarbonat
US20040009379A1 (en) * 2002-07-11 2004-01-15 Amendola Steven C. Method and apparatus for processing discharged fuel solution from a hydrogen generator
EP2048112A1 (en) * 2007-10-09 2009-04-15 Kemira Kemi AB Use of a nozzle for manufacturing sodium percarbonate
US20090142245A1 (en) * 2007-11-29 2009-06-04 Kwon Soon-Jae Method of producing nanophosphor particles

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU73751A1 (enrdf_load_stackoverflow) * 1975-11-06 1977-06-03
LU75466A1 (enrdf_load_stackoverflow) * 1976-07-27 1978-02-08
DE3505158A1 (de) * 1985-02-15 1986-08-21 Peroxid-Chemie GmbH, 8023 Höllriegelskreuth Superoxidiertes natriumperborat
ES2745113T3 (es) 2010-04-09 2020-02-27 Pacira Pharmaceuticals Inc Método para formular liposomas multivesiculares

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4968500A (en) * 1988-02-13 1990-11-06 Degussa Aktiengesellschaft Continuous method for preparation of granulated sodium perborate
US5094827A (en) * 1988-02-13 1992-03-10 Degussa Aktiengesellschaft High active oxygen content granulated sodium perborate product and method of making the same
US5395602A (en) * 1989-12-19 1995-03-07 Degussa Aktiengesellschaft Method for the production of sodium perborate hydrate granulates
US5328721A (en) * 1992-07-30 1994-07-12 Fmc Corporation Process for manufacturing sodium carbonate perhydrate particles and coating them with sodium borosilicate
WO1997010173A1 (de) * 1995-09-11 1997-03-20 Solvay Interox Gmbh Verfahren zur herstellung von natriumpercarbonat
US6228342B1 (en) 1995-09-11 2001-05-08 Solvay Interox Gmbh Process for the production of sodium percarbonate
US20040009379A1 (en) * 2002-07-11 2004-01-15 Amendola Steven C. Method and apparatus for processing discharged fuel solution from a hydrogen generator
WO2004007354A1 (en) * 2002-07-11 2004-01-22 Millennium Cell, Inc. Method and apparatus for processing discharged fuel solution from a hydrogen generator
CN1313358C (zh) * 2002-07-11 2007-05-02 千年电池公司 用于处理从氢发生器排出的燃料溶液的方法和装置
EP2048112A1 (en) * 2007-10-09 2009-04-15 Kemira Kemi AB Use of a nozzle for manufacturing sodium percarbonate
WO2009047281A1 (en) * 2007-10-09 2009-04-16 Kemira Kemi Ab Use of a nozzle for manufacturing sodium percarbonate
US20110038782A1 (en) * 2007-10-09 2011-02-17 Uwe Weiss Use of a nozzle for manufacturing sodium percarbonate
US8092772B2 (en) 2007-10-09 2012-01-10 Kemira Kemi Ab Use of a nozzle for manufacturing sodium percarbonate
US20090142245A1 (en) * 2007-11-29 2009-06-04 Kwon Soon-Jae Method of producing nanophosphor particles
US8894957B2 (en) * 2007-11-29 2014-11-25 Samsung Display Co., Ltd. Method of producing nanophosphor particles

Also Published As

Publication number Publication date
JPS4933037B1 (enrdf_load_stackoverflow) 1974-09-04
CH553726A (de) 1974-09-13
BE737408A (enrdf_load_stackoverflow) 1970-01-16
FR2016936A1 (enrdf_load_stackoverflow) 1970-05-15
SE360805B (enrdf_load_stackoverflow) 1973-10-08
CH556302A (de) 1974-11-29
GB1280184A (en) 1972-07-05
NL6910222A (enrdf_load_stackoverflow) 1970-02-17

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