FR2238752A1 - Powder detergent prepn - with a two stage drying process - Google Patents

Powder detergent prepn - with a two stage drying process

Info

Publication number
FR2238752A1
FR2238752A1 FR7425477A FR7425477A FR2238752A1 FR 2238752 A1 FR2238752 A1 FR 2238752A1 FR 7425477 A FR7425477 A FR 7425477A FR 7425477 A FR7425477 A FR 7425477A FR 2238752 A1 FR2238752 A1 FR 2238752A1
Authority
FR
France
Prior art keywords
prepn
paste
powder detergent
drying
particles
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.)
Granted
Application number
FR7425477A
Other languages
French (fr)
Other versions
FR2238752B1 (en
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.)
Unilever NV
Original Assignee
Unilever NV
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 Unilever NV filed Critical Unilever NV
Publication of FR2238752A1 publication Critical patent/FR2238752A1/en
Application granted granted Critical
Publication of FR2238752B1 publication Critical patent/FR2238752B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D11/00—Special methods for preparing compositions containing mixtures of detergents ; Methods for using cleaning compositions
    • C11D11/02—Preparation in the form of powder by spray drying
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02—Anionic compounds
    • C11D1/04—Carboxylic acids or salts thereof
    • C11D1/08—Polycarboxylic acids containing no nitrogen or sulfur
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02—Anionic compounds
    • C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
    • C11D1/28—Sulfonation products derived from fatty acids or their derivatives, e.g. esters, amides

Abstract

The prepn of a powder detergent contg a salt of a sulphonated fatty acid or a salt of an alkyl or alkenyl-succinate as improver comprising formation of an aq. paste of the detergent ingredients and drying of the paste to form particles is improved in that drying is carried out in a first stage in which a small amt of the water is eliminated and the paste is pulverised with a gas, and a second stage in which more water is removed from the prod. particles and a heated gas is passed across a fluidised bed of the particles. The apparent density of the powders is increased while using lower drying temps.
FR7425477A 1973-07-27 1974-07-23 Powder detergent prepn - with a two stage drying process Granted FR2238752A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3579973 1973-07-27

Publications (2)

Publication Number Publication Date
FR2238752A1 true FR2238752A1 (en) 1975-02-21
FR2238752B1 FR2238752B1 (en) 1978-01-20

Family

ID=10381662

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7425477A Granted FR2238752A1 (en) 1973-07-27 1974-07-23 Powder detergent prepn - with a two stage drying process

Country Status (1)

Country Link
FR (1) FR2238752A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2372227A1 (en) * 1976-11-26 1978-06-23 Unilever Nv PROCESS FOR PREPARING DETERGENT POWDERS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2372227A1 (en) * 1976-11-26 1978-06-23 Unilever Nv PROCESS FOR PREPARING DETERGENT POWDERS

Also Published As

Publication number Publication date
FR2238752B1 (en) 1978-01-20

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Legal Events

Date Code Title Description
ST Notification of lapse