Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – For cleaning a specific substrate or removing a specific...
Reexamination Certificate
2001-06-13
2004-03-02
Boyer, Charles (Department: 1751)
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
For cleaning a specific substrate or removing a specific...
C510S289000, C510S340000, C510S341000, C510S356000, C510S413000, C510S421000, C510S501000
Reexamination Certificate
active
06699827
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a method for manufacturing an active component of surfactant, a surfactant containing the same, and a method for using the surfactant. In particular, the present invention relates to a method for manufacturing colloid particles composed of silicon oxides having the structural characteristics by calcining at a high temperature, a novel colloidal active component of surfactant made of compounds containing the same, and a method for using the surfactant.
2. Background of the Related Art
An ecological environment for a human, in spite of the various industrially developed structures thereof, is now in a danger of ecological crisis due to heavy pollution in rivers and lands caused by chemical abuse, and pollution in the atmosphere caused by harmful chemicals and products from side reactions. Human beings have enjoyed their much success in technical developments for synthesizing or manufacturing every kind of materials for the convenience of a life. However, they failed to notice the importance of environmentally-friendly technologies and thus, the technologies for decomposing and recycling wastes have been consequently neglected.
Among other many well-known pollutants, effluent from surfactants and detergents are the chief factors in water and land pollution. Typically used detergents contain polypropylene benzene sulfonate type alkyl compounds as a main component (ABS: Alkyl Benzene Sulfonate), which was later discovered to cause very severe water pollution in an ecological sense, and further being harmful to a human body. Therefore, linear alkyl benzene sulfonate (LABS) soon replaced as an attempt to solve the water pollution problems. Unfortunately, however, the LABS was much more toxic compared to ABS although it had higher water solubility. Moreover, when used alone, the conventional detergents, e.g., sulfates or sulfonates, were not very effective as far as the cleansing mechanism is concerned, thus other additives, e.g., a capturing agent, a precipitation promoter, or a chelating agent had to be added.
Consequently, the conventional detergents were blamed for causing dermatitis by releasing a great amount of additives, including submicron calcium carbonate, NTA (nitrilo triacetic acid) containing triple sodium phosphate, HEDTA (hexamethylene diamine tetraacetic acid), DTPA (dimethylene triamine pentaacetic acid). In addition, they created a main factor in slowing down biological decomposition, i.e., a biological stimulant in the water, causing eutrophication, which deterred the water's self-cleansing action. Overall, they brought a severe pollution in water and public sanitation.
As an attempt to solve the problems described above, highly biodegradable detergents by microorganisms, having fatty acid type surfactants as a base, were introduced since they are known to have a relatively high safety in ecological prospect. However, the high degree of biodegradation of detergents was proved to be existing merely in theory, and it was not strong enough or appropriate for the current environment with a number of various nasty pollutants therein. Rather, the detergents play an important role for a polymerization linkage and worsen the pollution also. Interestingly, other developed nations have already banned or restricted the use of the detergents since it was discovered that the detergents are carsenogenic to a human, and have an estrogenic effect.
Accordingly, researches have been progressed for developing surfactants that are ecologically very safe and environmentally-friendly, and developing additives or builders that are essential for detergent formulation, but not much success has been made.
SUMMARY OF THE INVENTION
Accordingly, the present invention is directed to a method for manufacturing an active component of surfactant, surfactant and a method for using the surfactant that substantially obviate one or more problems due to limitations and disadvantages of the related art.
An object of the present invention is to provide a novel colloid active component for solving water and land pollution, and at the same time, being safe to a human and the ecosystem, so that it can be a versatile material in many fields, particularly, adding economic value and applicability to an industrial use.
Another object of the present invention is to provide a method for manufacturing colloid aluminum silica gel, comprising the steps of:
(a) dissolving a mixing solution of aluminum hydroxide in sulfuric acid, wherein the mixture includes aluminum oxide, silicic acid, potassium, iron oxide, sulfuric acid and water;
(b) adding potassium sulfate solution into the solution from (a), and stirring the mixture at a low temperature to produce compositions containing soluble aluminum double salt;
(c) purifying the compositions of the step (b) to obtain aluminum potassium sulfate with high purity and density;
(d) adding aluminum silicate and water to the aluminum potassium sulfate of the step (c) to produce alkali metal polysilicate-sulfate water salt chelate;
(e) polymerizing and precipitating the alkali metal polysilicate-sulfate water salt chelate at a low temperature to produce pectograph of aluminum silicate sieve;
(f) producing chelate by adding magnesia, iron oxide, calcium hydroxide, sodium oxide, potassium oxide, and distilled water in sequence;
(g) purifying and drying the chelate of the step (f) to produce dried microsphere;
(h) melting the dried microsphere of the step (g) at a high temperature, cooling, hardening, and mixing with diluted (thin) sulfuric acid;
(i) carrying out sequential treatments on the resultant of the step (h), that is, polymerizing, cleansing, heating, dehydrating, or drying, and performing vapor treatment, to obtain powder aluminum silicate molecular sieve with a high absorption of which particle size is under 1&mgr;; and,
(j) polymerizing the aluminum silicate molecular sieves with each other until they are matured to be a highly dense heel.
The step (c) can be replaced with a cleansing step, in which the compositions are continuously heated and stirred, and 0.1% of enzyme by weight is slowly dropped thereto.
As for the step (d), aluminum sulfate and aluminum silicate can be mixed at a ratio of 1:3 by weight, and water was added to produce 24-water salt alkali metal polysilicate-sulfate chelates.
In addition, a preferred method for manufacturing the aforementioned colloid aluminum silica gel further comprises a step, in which the matured heel from the step (j) passes through an ion-exchange resin layer several times to produce very pure and consistent colloid aluminum silica gel, and later the consistent colloid is crushed.
Still another object of the present invention is to provide a surfactant having characteristic of both silica and alumina, being void of any chemical bond to form polymers by reacting with other molecules in the ecosystem, having an ability of metal substitution of zeolite at a low temperature, and containing evenly purified colloid aluminum silica gel having the particle size within a range of from several nm to several &mgr;m for a diameter.
Here, the colloid aluminum silica gel can be manufactured by a process comprising the steps of:
(a) dissolving a mixing solution of aluminum hydroxide in sulfuric acid, wherein the mixture includes aluminum oxide, silicic acid, potassium, iron oxide, sulfuric acid and water;
(b) adding potassium sulfate solution into the solution from (a), and stirring the mixture at a low temperature to produce compositions containing soluble aluminum double salt;
(c) purifying the compositions of the step (b) to obtain aluminum potassium sulfate with high purity and density;
(d) adding aluminum silicate and water to the aluminum potassium sulfate of the step (c) to produce alkali metal polysilicate-sulfate water salt chelate;
(e) polymerizing and precipitating the alkali metal polysilicate-sulfate water salt chelate at a low temperature to produce pectograph of aluminum silicate sieve;
(f) producing chelate by adding magnesia, iron oxid
Birch & Stewart Kolasch & Birch, LLP
Boyer Charles
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