Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Zeolites laundry detergents

Synthetic zeolites and other molecular sieves are important products to a number of companies in the catalysis and adsorption areas and numerous applications, both emerging and well-established, are encouraging the industrial synthesis of the materials. There are currently no more than a few dozen crystalline microporous structures that are widely manufactured for commercial use, in comparison to the hundreds of structures that have been made in the laboratory. See Chapter 2 for details on zeolite structures. The highest volume zeolites manufactured are two of the earliest-discovered materials zeolite A (used extensively as ion exchangers in powdered laundry detergents) and zeolite Y (used in catalytic cracking of gas oil). [Pg.62]

Large volumes of soap are used in industrial applications as gelling agents lor kerosene, paint driers, and as surfactants in emulsion polymerization. See also Soaps. Concern over water eutrophication resulted in a ban of phosphorus in laundry detergents. Phosphates have been effectively replaced by combinations of zeolite, citrate, and polymers, coupled with rebalanced synthetic active systems. Soap itself is generally present only as a minor component of surfactants. [Pg.1584]

Zeolites, also known as molecular sieves, are important alternative builders for powdered laundry detergents and replaced phosphate salts that were banned for legislative reasons. Zeolites exist in the form of calcium, sodium, magnesium, potassium, and barium salts. [Pg.147]

Type-A zeolites are the most widely used form for laundry detergents. [Pg.147]

Korlite. [Kaopolite] Natural zeolite silicate mineral absorbent for organic compds., sulto dioxide gases, od( s, ammonia builder in laundry detergents decolorizer for organic liqs., specialty filler and water treatments. [Pg.198]

Laundry Detergent-Consumer (Zeolite Built. Zero Phosphate. Liquid)... [Pg.83]

Laundry Detergent-Industrial ft Institutional fNTA/Zeolite Powdar ... [Pg.86]

Zeolites have a wide range of applications. They are used as replacements for phosphates in laundry detergents, as adsorbents for purification and separation of materials, and as catalysts. The detergents industry has the largest demand for zeolities (ca. 1.2 X 10 t/a in 1994) and the highest growth rate. Demand for zeolite catalysts is also growing, and in 1994 amounted to ca. 115000 t/a. [Pg.255]

Ammonium carbonate Citric acid Methyl vinyl ether/maleic acid copolymer Nitrilotriacetic acid Oxidized cellulose PEG-2 cocomonium chloride Sodium disilicate Sodium metaphosphate Sodium sesquicarbonate Sodium silicoaluminate Tetrapotassium pyrophosphate Tetrasodium EDTA Zeolite Zeolite synthetic detergent builder, household cleaners Potassium silicate detergent builder, laundry powders Sodium sulfate... [Pg.5072]

More recently, zeolites or aluminosilicates have also been used to sequester these ions. (See Section 15.5 for more on the structure and function of aluminosilicates.) Phosphates themselves are still used (although limited to 8.7% in laundry detergents in many states), particularly in industrial-strength cleaners and in dishwasher detergents. [Pg.139]

Although less than 20 years have passed since the first patents [1, 2] of zeolite-A as inorganic builders, its usage in laundry detergents reached 1.1 million tons in 1993, and is still growing [3]. [Pg.22]

With this in view, the focus of the researchers has shifted towards the search for the substitutes to such detergent builders [1]. Based on the superiorily of zeolite-A with reference to the essential properties for a suitable detergait (viz., ability to lower the hardness of water, insolubility in water and less environmental risk, it has been reported to be dominating among common substitutes to the phosphate builders for laundry detergents with a dose of 25 % by weight of the final product) [2, 3]. [Pg.192]

However, the major use of ionic exchange in zeolites today is the application of the synthetic zeolite A in detergents for the softening of laundry water. [Pg.81]

Studies have shown zeolites to be slower than STPP at removing Ca2+ from the wash solution [27], In addition, their insolubility in aqueous solutions has limited their use to powder detergents, especially in the laundry industry. A comprehensive review of the chemistry of aluminosilicates in detergent compositions is available [28], Patents for LADD products utilizing zeolites have appeared in the literature [29-31]. The attraction is due to their low cost and low toxicity. [Pg.333]


See other pages where Zeolites laundry detergents is mentioned: [Pg.218]    [Pg.231]    [Pg.421]    [Pg.264]    [Pg.238]    [Pg.118]    [Pg.1732]    [Pg.1732]    [Pg.1739]    [Pg.375]    [Pg.70]    [Pg.3125]    [Pg.242]    [Pg.363]    [Pg.47]    [Pg.49]    [Pg.575]    [Pg.1390]    [Pg.408]    [Pg.32]    [Pg.606]    [Pg.274]    [Pg.72]    [Pg.203]    [Pg.236]    [Pg.402]    [Pg.122]    [Pg.700]    [Pg.195]    [Pg.1039]    [Pg.1040]    [Pg.356]    [Pg.3161]    [Pg.24]    [Pg.140]   
See also in sourсe #XX -- [ Pg.71 ]




SEARCH



Laundry

Laundry detergents

© 2024 chempedia.info