US2876200A - Making perborate containing detergents - Google Patents

Making perborate containing detergents Download PDF

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Publication number
US2876200A
US2876200A US500282A US50028255A US2876200A US 2876200 A US2876200 A US 2876200A US 500282 A US500282 A US 500282A US 50028255 A US50028255 A US 50028255A US 2876200 A US2876200 A US 2876200A
Authority
US
United States
Prior art keywords
perborate
detergent
granular
granules
tetrahydrate
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 - Lifetime
Application number
US500282A
Other languages
English (en)
Inventor
Strain Bruce
Stanley L Eaton
Kenneth R Ericson
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.)
Procter and Gamble Co
Original Assignee
Procter and Gamble 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
Priority to NL206075D priority Critical patent/NL206075A/xx
Priority to BE546607D priority patent/BE546607A/xx
Application filed by Procter and Gamble Co filed Critical Procter and Gamble Co
Priority to US500282A priority patent/US2876200A/en
Priority to GB10500/56A priority patent/GB792609A/en
Priority to AT212056A priority patent/AT210856B/de
Priority to CH345405D priority patent/CH345405A/fr
Priority to DEP16020A priority patent/DE1042812B/de
Priority to ES0227789A priority patent/ES227789A1/es
Priority to FR1153627D priority patent/FR1153627A/fr
Application granted granted Critical
Publication of US2876200A publication Critical patent/US2876200A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/39—Organic or inorganic per-compounds
    • 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
    • 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
    • C11D9/00—Compositions of detergents based essentially on soap
    • C11D9/04—Compositions of detergents based essentially on soap containing compounding ingredients other than soaps
    • C11D9/42—Per-compounds

Definitions

  • the sodium perborate tetrahydrate melts or becomes dissolved in its water of crystallization to form a solution which immediately coats or is absorbed upon the surfaces and within the pores of 10 the spray dried detergent.
  • the mixture is j cooled to minimize decomposition of perborate.
  • the perborate solidifies, but the solidperharateflirp ed is imbedded in or entrained in the surfaces T e Pfflsent mvefltlon relates to ckanmg and Washmg and outer pores of the detergent granules and is not free No Drawing. Application April 8, 1955 Serial No. 500,282
  • noncationic synthetic organic detergents are applicable in the preparation of soap and anionic and nonionic synthetic detergent compositions in granular form, hereinafter referred to generically as noncationic synthetic organic detergents.
  • a further object is to provide a gravitationally stable mixture of detergent and sodium perborate tetrahydrate in granular or particulate form.
  • Another object is to provide an improved process for producing a gravitationally stable detergent-perborate composition in spray dried form without substantial decomposition of perborate.
  • a still further object is to produce a granular detergentperborate bleaching and cleansing composition which is stable against separation of perborate particles from detergent particles.
  • the tendency toward segregation or gravitational separation of perborate is eliminated, and the objects of the invention are achieved without significant decomposition of the perborate.
  • our process produces a novel form of granular detergent with bleaching properties in that the perborate is entrained in the porous structure of the granular detergent and is not subject to gravitational separation during handling.
  • the perborate can be introduced prior to entrance of the granules into the rotating drum.
  • the temperature of the granules is sufliciently high to efiect fusion of the perborate tetrahydrate, and absorption is substantially instantaneous.
  • the resulting product is subsequently delivered to an air lift where cooling of the granules is efiected within a period of to seconds after the perborate is added to produce the improved product of the present invention without measurable perborate decomposition.
  • the sodium perborate tetrahydrate crystals can be admixed with cold detergent granules, following 5 which the mixture is rapidly heated to a temperature above F., preferably from about F. to about 230 F. with agitation to gggggiusionap d absorption of the pr'libm cooling of the product may be efleci y means of an air lift or by allowing the granules to fall through a counter-current stream of cooling air.
  • the amount of sodium perborate tetrahydrate incorporated with the detergent may be one or two percent or even up to five percent based on the entire composition. If compositions with greater bleaching power are desired, then the perborate concentration may be increased to 10% and 20% levels without departing from the spirit of the invention.
  • the invention is applicable in the production of granular detergent products from soap, from synthetics of the anionic and nonionic classes, and from mixtures thereof.
  • all non-cationic surface active agents which possess pronounced detergent properties may be combined with sodium perborate tetrahydrate in accordance with our discovery to produce the improved cleansing and bleaching agents herein disclosed.
  • the detergent substances include:
  • Easter soluble soaps such as the sodium salt of a mixture atty an s which contains about 85% of the mixed fatty acids derived from tallow and about 15% of the mixed fatty acids derived from coconut oil.
  • WW such as the sodium salts of the sulfuric aci ester 0 mixed fatty alcohols derived from coconut oil or tallow.
  • Water soluble salts of the sulfuric acid ester of fatty acid monoglycerides such as the sodium salt of the coconut oil fatty acid monoester of 1,2-dihydroxy-propane-B-sulfuric acid.
  • hydroxy and polyhydroxy alkyl sulfonic acids such as the alkali metal salts of coconut oil fatty acid monoester of 1,2-dihydroxy-propane-3-sulfonic acid.
  • alkyiglyceryl ether sulfonates such as the sodium salt of coconut oil alccfiiol nTcinoether of l,2-dihydroxy-propane-B-sulfonic acid.
  • Water soluble salts of alkyl ethers of polyethylene oxide sulfates such as the sodium salt of the sulfuric acid ester of the coconut oil alcohol ether of triethylene glycol.
  • Eonionic detergents of the ethylene-oxide alkylphenol condensation type such as octyl phenol polyether alcohol containing about 11 ethylene-oxide groups.
  • Such detergents as above designated can be used alone or in combination with organic and inorganic builder substances when producing the cleansing and bleaching agents of the present invention.
  • the invention is applicable in the manufacture of heavy-duty synthetimdetergentswhichnarelell lgngwn in the commercial art and which contain massive amounts of tri polyphosphate.
  • tripolyphosphate or of other builder substances such as silicates, carbonates, amides, and the like, is not essential and detergent compositions containing no such builder substances, or only small amounts thereof, may be combined with perborate in accordance with the practice herein described.
  • Example 1 An aqueous slum, comprising a mixture of tetra ro lene benzene sulfonate and alkyl sulfate derived from a mixture of higher alcohols having 10 to 18 carbon atoms together with tripolyphosphate in amount equal to about three times the weight of organic sulfate and sulfonate, was sprayed into a conventional drying tower to produce granules having about 10% moisture content. The granules, at a temperature of 190' F. to 200 F., were removed continuously from the trodu o .n -r mm the ranules. The product issuing from the drum was immediately picked up by means of an air lift and deposited in suitable bins preparatory to packaging. In passage through the air lift the granules were cooled to a temperature below F.
  • the product resulting from the above process possessed adequate cleansing power and was comparable in bleaching power to a carefully prepared and unsegregated mechanical mixture of the same detergent with 5% of perborate.
  • the process can be repeated with other synthetic detergent, or soap, with similar improved results in the stability of the product against gravitational separation of perborate, but without appreciable decomposition of the perborate.
  • Example 2 A detergent composition was in Example 1 except that 10% sodium perborale tetrahydrate was employed and except iliat go l1gu1H organic builder substances were added during passage of the granular detergent mixture through the rotating drum. Samples of the resulting product in cartons were taken from the packing line. Half of the samples were jolted 250 times with the carton upright, 100 times with the carton on its side, and then 250 times again with the carton upright to simulate severe agitation that might be experienced during handling. The remaining samples were not subjected to the jolting procedure. Available 0, analyses were made on portions of product taken from the top, middle, and bottom of cartons in each of the two groups of samples. The data showed that there was no significant segregation of perborate.
  • a process of producing a non-segregating granular detergent product having bleaching power during use in aqueous solutions in washing operations comprising admixing sodium perborate tetrahydrate crystals with previously spray dried granular non-cationic synthetic organic detergent at a temperature within the range of about F. to about 230 F., said temperature being sufficient to melt said perborate tetrahydrate to form a solution of the perborate in its water of crystallization, which solution, without substantial decomposition of perborate, is absorbed by outer pores and surfaces of detergent granules, then, promptly and within five minutes cooling the resulting product before substantial decomposition of perborate occurs.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Inorganic Chemistry (AREA)
  • Detergent Compositions (AREA)
US500282A 1955-04-08 1955-04-08 Making perborate containing detergents Expired - Lifetime US2876200A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
NL206075D NL206075A (en(2012)) 1955-04-08
BE546607D BE546607A (en(2012)) 1955-04-08
US500282A US2876200A (en) 1955-04-08 1955-04-08 Making perborate containing detergents
GB10500/56A GB792609A (en) 1955-04-08 1956-04-05 Improvements in or relating to cleaning and washing agents having bleaching properties
AT212056A AT210856B (de) 1955-04-08 1956-04-06 Verfahren zur Herstellung eines granulierten, bleichend wirkenden Waschmittels
CH345405D CH345405A (fr) 1955-04-08 1956-04-06 Procédé de préparation d'un produit détergent granulaire
DEP16020A DE1042812B (de) 1955-04-08 1956-04-07 Bleichendes koerniges Waschmittel
ES0227789A ES227789A1 (es) 1955-04-08 1956-04-07 UN PROCEDIMIENTO DE FABRICACIoN DE COMPOSICIONES DETERGENTES
FR1153627D FR1153627A (fr) 1955-04-08 1956-04-07 Produit détersif et ses applications

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US500282A US2876200A (en) 1955-04-08 1955-04-08 Making perborate containing detergents

Publications (1)

Publication Number Publication Date
US2876200A true US2876200A (en) 1959-03-03

Family

ID=23988748

Family Applications (1)

Application Number Title Priority Date Filing Date
US500282A Expired - Lifetime US2876200A (en) 1955-04-08 1955-04-08 Making perborate containing detergents

Country Status (9)

Country Link
US (1) US2876200A (en(2012))
AT (1) AT210856B (en(2012))
BE (1) BE546607A (en(2012))
CH (1) CH345405A (en(2012))
DE (1) DE1042812B (en(2012))
ES (1) ES227789A1 (en(2012))
FR (1) FR1153627A (en(2012))
GB (1) GB792609A (en(2012))
NL (1) NL206075A (en(2012))

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2979464A (en) * 1956-11-09 1961-04-11 Degussa Perborate granulation
US3366570A (en) * 1961-05-15 1968-01-30 Lever Brothers Ltd Process of preparing detergent tablets
US3413221A (en) * 1961-03-01 1968-11-26 Henkel & Compagnie G M B H Wash agents
US3522184A (en) * 1966-05-02 1970-07-28 Kao Corp Granular bleaching agent composition and method for making thereof
US4262057A (en) * 1979-06-21 1981-04-14 Detrex Chemical Industries, Inc. Metal drawing compound composition and method of use
US4350034A (en) * 1979-06-21 1982-09-21 Wayne Chemical Products Company Metal drawing compound composition and method of use

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191508483A (en) * 1914-06-09 1916-02-24 Degussa An Improved Method of Making Blocks, Bars, and the like of Soap containing a Perborate, Pecarbonate, or like Oxygen Yielding Salt.
DE428878C (de) * 1924-11-20 1926-05-12 Ernst Flammer Seife mit Gehalt an aktiven Sauerstoff enthaltenden Verbindungen
US2308992A (en) * 1937-10-03 1943-01-19 Procter & Gamble Method for producing washing, cleansing, bleaching, and rinsing agents containing percompounds
US2491789A (en) * 1946-10-23 1949-12-20 Du Pont Alkali metal perborates
US2524394A (en) * 1946-12-23 1950-10-03 Samuel L Madorsky Method of manufacturing stable alkali hypochlorite compositions
US2623856A (en) * 1952-12-30 Tetraborate detergent compositionx
US2657797A (en) * 1948-04-23 1953-11-03 Colgate Palmolive Peet Co Process of cooling spray dried detergents
US2706178A (en) * 1951-02-10 1955-04-12 Du Pont Preparation of hydrated perborate products

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2623856A (en) * 1952-12-30 Tetraborate detergent compositionx
GB191508483A (en) * 1914-06-09 1916-02-24 Degussa An Improved Method of Making Blocks, Bars, and the like of Soap containing a Perborate, Pecarbonate, or like Oxygen Yielding Salt.
DE428878C (de) * 1924-11-20 1926-05-12 Ernst Flammer Seife mit Gehalt an aktiven Sauerstoff enthaltenden Verbindungen
US2308992A (en) * 1937-10-03 1943-01-19 Procter & Gamble Method for producing washing, cleansing, bleaching, and rinsing agents containing percompounds
US2491789A (en) * 1946-10-23 1949-12-20 Du Pont Alkali metal perborates
US2524394A (en) * 1946-12-23 1950-10-03 Samuel L Madorsky Method of manufacturing stable alkali hypochlorite compositions
US2657797A (en) * 1948-04-23 1953-11-03 Colgate Palmolive Peet Co Process of cooling spray dried detergents
US2706178A (en) * 1951-02-10 1955-04-12 Du Pont Preparation of hydrated perborate products

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2979464A (en) * 1956-11-09 1961-04-11 Degussa Perborate granulation
US3413221A (en) * 1961-03-01 1968-11-26 Henkel & Compagnie G M B H Wash agents
US3366570A (en) * 1961-05-15 1968-01-30 Lever Brothers Ltd Process of preparing detergent tablets
US3522184A (en) * 1966-05-02 1970-07-28 Kao Corp Granular bleaching agent composition and method for making thereof
US4262057A (en) * 1979-06-21 1981-04-14 Detrex Chemical Industries, Inc. Metal drawing compound composition and method of use
US4350034A (en) * 1979-06-21 1982-09-21 Wayne Chemical Products Company Metal drawing compound composition and method of use

Also Published As

Publication number Publication date
NL206075A (en(2012))
ES227789A1 (es) 1957-03-01
CH345405A (fr) 1960-03-31
AT210856B (de) 1960-08-25
FR1153627A (fr) 1958-03-19
BE546607A (en(2012))
GB792609A (en) 1958-04-02
DE1042812B (de) 1958-11-06

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