GB636209A - Improvements in or relating to processes of making agglomerated sodium acid pyrophosphate and the improved product resulting therefrom - Google Patents

Improvements in or relating to processes of making agglomerated sodium acid pyrophosphate and the improved product resulting therefrom

Info

Publication number
GB636209A
GB636209A GB8985/47D GB898547D GB636209A GB 636209 A GB636209 A GB 636209A GB 8985/47 D GB8985/47 D GB 8985/47D GB 898547 D GB898547 D GB 898547D GB 636209 A GB636209 A GB 636209A
Authority
GB
United Kingdom
Prior art keywords
pyrophosphate
sodium acid
sodium
moistening
acid pyrophosphate
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
GB8985/47D
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.)
Monsanto Chemicals Ltd
Monsanto Chemical Co
Original Assignee
Monsanto Chemicals Ltd
Monsanto Chemical Co
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 Monsanto Chemicals Ltd, Monsanto Chemical Co filed Critical Monsanto Chemicals Ltd
Publication of GB636209A publication Critical patent/GB636209A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A21—BAKING; EDIBLE DOUGHS
    • A21D—TREATMENT, e.g. PRESERVATION, OF FLOUR OR DOUGH, e.g. BY ADDITION OF MATERIALS; BAKING; BAKERY PRODUCTS; PRESERVATION THEREOF
    • A21D2/00—Treatment of flour or dough by adding materials thereto before or during baking
    • A21D2/02—Treatment of flour or dough by adding materials thereto before or during baking by adding inorganic substances
    • 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
    • B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B25/00—Phosphorus; Compounds thereof
    • C01B25/16—Oxyacids of phosphorus; Salts thereof
    • C01B25/26—Phosphates
    • C01B25/38—Condensed phosphates
    • C01B25/42—Pyrophosphates
    • C01B25/425—Pyrophosphates of alkali metals

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Bakery Products And Manufacturing Methods Therefor (AREA)

Abstract

Agglomerated sodium acid pyrophosphate suitable for a leavening agent in self-rising flours and baking powders is prepared by moistening finely-divided sodium acid pyrophosphate with from 6 to 15 per cent of an aqueous medium or a solution of an alkaline earth salt, such as calcium lactate, chloride, glycerophosphate, monocalcium phosphate or magnesium lactate, sulphate or chloride, and agitating the moistened pyrophosphate to form agglomerates. These are dried at a temperature between 60 DEG and 110 DEG C., after preliminary screening. A wetting agent such as sodium alkyl sulphates or sulphonates, alkylated aromatic sulphonates or alkali metal salts of fatty acids may be added to the moistening liquid from between 0.05 and 2 per cent by weight to assist the agglomeration and to precipitate disintegration on contact with water. U.S.A. Specifications 1,834,747 and 1,951,328 are referred to.ALSO:Agglomerated sodium acid pyrophosphate for use in self-rising flours, baking powders and as a leavening agent is prepared by moistening the finely ground pyrophosphate with water or an alkaline earth salt solution to form agglomerates which are then screened and dried, the product retaining the moisture resisting properties of coarsely ground pyrophosphate as well as the superior baking and leavening qualities of the finely ground pyrophosphate. From 0.05-2 per cent by weight of a wetting agent; e.g., sodium lauryl sulphate, may be added to the moistening liquid to assist agglomeration and to facilitate disintegration on contact with water or batter mixes. According to examples, the pyrophosphate is incorporated with sodium bicarbonate and flour to obtain a self-rising flour, and with sodium bicarbonate to obtain a baking powder. U.S.A. Specifications 1,834,747 and p 1,951,328 are referred to.
GB8985/47D 1943-11-08 1947-04-02 Improvements in or relating to processes of making agglomerated sodium acid pyrophosphate and the improved product resulting therefrom Expired GB636209A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US636209XA 1943-11-08 1943-11-08

Publications (1)

Publication Number Publication Date
GB636209A true GB636209A (en) 1950-04-26

Family

ID=22050410

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8985/47D Expired GB636209A (en) 1943-11-08 1947-04-02 Improvements in or relating to processes of making agglomerated sodium acid pyrophosphate and the improved product resulting therefrom

Country Status (1)

Country Link
GB (1) GB636209A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011003816A1 (en) * 2011-02-08 2012-08-09 Chemische Fabrik Budenheim Kg Modified disodium dihydrogen diphosphate

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011003816A1 (en) * 2011-02-08 2012-08-09 Chemische Fabrik Budenheim Kg Modified disodium dihydrogen diphosphate
DE102011003816B4 (en) * 2011-02-08 2014-01-30 Chemische Fabrik Budenheim Kg Modified disodium dihydrogen diphosphate

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