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
  • C11D3/02—Inorganic compounds ; Elemental compounds
  • C11D3/04—Water-soluble compounds
  • C11D3/06—Phosphates, including polyphosphates
  • C11D3/062—Special methods concerning phosphates

Definitions

• the present invention relates to a process for the manufacture of pulverulent washing, cleansing, rinsing and degreasing agents, wherein a wash-active substance is sprayed on sodium tripolyphosphate.
• the process of the present invention wherein washactive substances are sprayed, in the presence of water, on sodium tripolyphosphate having a bulk density higher than 550 grams/liter, preferably higher than 600 up to about 700 grams/ liter, and containing phase-I material in a proportion of 20 to 100% by weight, preferably 40 to 80% by weight, has now unexpectedly been found to be free from the disadvantages mentioned above.
• the present process has also been found to offer various advantages over conventional methods.
• the conventional methods are found to be generally applicable only to pyrophosphates, to require the wash-active substance to be sprayed very slowly in the form of droplets which are not allowed to exceed a certain diameter, and to require the final product to be dusted subsequently with a finely pulverulent absorbent.
• the process of the present invention can be carried out on a commercial scale using sodium tripolyphosphate which is a preferred detergent component considering its high power of binding lime.
• sodium tripolyphosphate used as the builder can very readily be sprayed with the wash-active substances of either anionic, cationic or nonionic nature which, for example,
• alkyl aryl sulfonates true soaps (alkali metal salts of saturated and unsaturated fatty acids, for example oleic acid, palmitic acid, stearic acid, behenic acid, coconut oil fatty acid, tallow fatty acid, palm-kernel oil fatty acid or other acids produced from natural oils and fats); salts of aminocarboxylic acids; salts of highor low-acylated aminocarboxylic acids; fatty acid sulfates; sulfates or phosphates of fatty acid esters or amides; primary and secondary alkyl sulfates or sulfonates; sulfates, sulfonates or phosphates of esterified or etherified polyoxy compounds; sulfates, sulfonates or phosphates of substituted polyglycol ethers;
• esters or ethers of polyalcohols alkyl, acyl or alkyl aryl polyglycol ethers; and
• alkylamine salts quaternary ammonium salts; alkyl pyridinium salts; ordinary and quaternary imidazonline salts; alkyl diamines and polyamines.
• wash-active substances are conveniently used in the form of an aqueous solution or paste.
• nonionic wash-active substances which are generally found to be practically anhydrous, are used, they should be employed in combination with about 1 to 22% by weight water, referred to the sodium tripolyphosphate, the water being sprayed on the sodium tripolyphosphate through a second nozzle separate from that used for spray ing the nonionic substance.
• the spraying can be achieved inside any mixer provided with means for the nozzle spraying of a liquid or paste.
• phase-I-containing sodium tripolyphosphates having a bulk density higher than 550 grams/liter is also of importance inasmuch as high bulk density is a factor desirable for a plurality of applications, for example for the production of pulverulent rinsing agents for use in automatic dish washing machines. These often have dosing means of limited dimensions. In other words, heavy powders are needed to fill the dosing means with the quantity of dish rinsing agent necessary for the rinsing operation.
• EXAMPLE 1 Sodium tripolyphosphate containing 60% phase-I material and having a bulk density of 630 grams/liter was sprayed with 40% by weight alkyl aryl sulfonate in a 65% aqueous solution, the percentages being referred to the tripolyphosphate.
• the fiowable final product had a bulk density of 500 grams/liter.
• the same proportion of alkyl aryl sulfonate was sprayed by way of comparison on phase-II sodium tripolyphosphate having a bulk density of 650 grams/liter. The final product so obtained was found to be sticky and not flowable.
• a process for preparing pulverulent washing and degreasing agents containing:
• the water being sprayed on the sodium tripolyphosphate through a nozzle 4 separate from that used for spraying the nonionic detergents.

Landscapes

• Chemical & Material Sciences (AREA)
• Inorganic Chemistry (AREA)
• Life Sciences & Earth Sciences (AREA)
• Engineering & Computer Science (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Wood Science & Technology (AREA)
• Organic Chemistry (AREA)
• Detergent Compositions (AREA)
• Jet Pumps And Other Pumps (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=7228741

Family Applications (1)

Country Status (16)

Cited By (6)

Citations (3)

• 0
  • ZA ZA670520D patent/ZA670520B/xx unknown
• 1966
  • 1966-02-26 DE DEK58573A patent/DE1283427B/de active Pending
• 1967
  • 1967-01-26 AU AU16912/67A patent/AU413859B2/en not_active Expired
  • 1967-02-03 US US613749A patent/US3501408A/en not_active Expired - Lifetime
  • 1967-02-03 CH CH163967A patent/CH487242A/de not_active IP Right Cessation
  • 1967-02-03 GB GB5333/67A patent/GB1109385A/en not_active Expired
  • 1967-02-06 NO NO166723A patent/NO121511B/no unknown
  • 1967-02-09 DK DK71567AA patent/DK125900C/da active
  • 1967-02-14 FI FI0433/67A patent/FI44444B/fi active
  • 1967-02-21 FR FR95763A patent/FR1512038A/fr not_active Expired
  • 1967-02-21 NL NL6702615A patent/NL6702615A/xx unknown
  • 1967-02-22 ES ES337250A patent/ES337250A1/es not_active Expired
  • 1967-02-24 SE SE02570/67A patent/SE328364B/xx unknown
  • 1967-02-24 AT AT184867A patent/AT293578B/de active
  • 1967-02-24 BE BE694593D patent/BE694593A/xx unknown
• 1968
  • 1968-09-09 CY CY45668A patent/CY456A/xx unknown

Patent Citations (3)

Also Published As

Similar Documents