GB825071A - Process for the production of a crystalline sodium perborate trihydrate - Google Patents

Process for the production of a crystalline sodium perborate trihydrate

Info

Publication number
GB825071A
GB825071A GB2942056A GB2942056A GB825071A GB 825071 A GB825071 A GB 825071A GB 2942056 A GB2942056 A GB 2942056A GB 2942056 A GB2942056 A GB 2942056A GB 825071 A GB825071 A GB 825071A
Authority
GB
United Kingdom
Prior art keywords
sodium
sodium perborate
trihydrate
production
solid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB2942056A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Evonik Operations GmbH
Original Assignee
Degussa GmbH
Deutsche Gold und Silber Scheideanstalt
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Degussa GmbH, Deutsche Gold und Silber Scheideanstalt filed Critical Degussa GmbH
Publication of GB825071A publication Critical patent/GB825071A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

A sodium perborate trihydrate of formula Na[BO2.H2O2].2H2O is crystallized at 12-86 DEG C. from an aqueous solution of sodium perborate or components forming sodium perborate, in the presence of a sodium salt of hydrochloric, sulphuric or nitric acid. The crystallization may be performed in the presence of seeds, e.g. of the solid trihydrate or of sodium percarbonate; in the presence of solid sodium perborate tetrahydrate (Na[BO2.H2O2].3H2O) (which continuously dissolves and reprecipitates as trihydrate); or in the presence of stabilizers such as magnesium silicate, stannic oxide and tetrasodium ethylenediamine tetraacetic acid. Suitable components for the production of sodium perborate in solution are sodium metaborate and hydrogen peroxide or sodium peroxide, hydrogen chloride and borax. If desired, after removal of the trihydrate crystals, the mother liquor may be suitably supplemented and reused for the precipitation of a further batch of the crystalline product.
GB2942056A 1955-10-04 1956-09-26 Process for the production of a crystalline sodium perborate trihydrate Expired GB825071A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED21436A DE1078101B (en) 1955-10-04 1955-10-04 Process for the preparation of a crystalline sodium perborate trihydrate

Publications (1)

Publication Number Publication Date
GB825071A true GB825071A (en) 1959-12-09

Family

ID=7037082

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2942056A Expired GB825071A (en) 1955-10-04 1956-09-26 Process for the production of a crystalline sodium perborate trihydrate

Country Status (5)

Country Link
BE (1) BE551428A (en)
CH (1) CH349585A (en)
DE (1) DE1078101B (en)
FR (1) FR1158108A (en)
GB (1) GB825071A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3832447A (en) * 1970-10-16 1974-08-27 Kali Chemie Ag Method for producing sodium perborate trihydrate

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL173191A (en) * 1952-10-17

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3832447A (en) * 1970-10-16 1974-08-27 Kali Chemie Ag Method for producing sodium perborate trihydrate

Also Published As

Publication number Publication date
CH349585A (en) 1960-10-31
DE1078101B (en) 1960-03-24
FR1158108A (en) 1958-06-06
BE551428A (en)

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