WO2013028048A1

WO2013028048A1 - Development, from amino acids having a high molecular weight, of a chelate provided in a gel state and having silver, copper and zinc ions in order to increase the effectiveness of treating various types of sewage

Info

Publication number: WO2013028048A1
Application number: PCT/MX2011/000101
Authority: WO
Inventors: Juan Fernando Uribe Valle; Luis Armando CRUZ GONGORA; Juan Manuel RODRIGUEZ PALENCIA
Original assignee: Juan Fernando Uribe Valle; Cruz Gongora Luis Armando; Rodriguez Palencia Juan Manuel
Priority date: 2011-08-22
Filing date: 2011-08-22
Publication date: 2013-02-28

Abstract

The present invention is based on the micellisation principle of water and, thus, when the latter is provided in a gel state, the separation of water from heavier lumps is facilitated and, above all, the environment is not affected, since being provided in the structure of the chelate leads to biodegradation in which the resulting sludge does not generate any problems for the environment since the sludge tends to decompose and can thereby be used as biofuel for biodigesters, or to create compost and biofertilisers. The present invention relates to the modification of the structure of the chelate salts (silver (Ag), zinc (Zn), copper (Cu)) by incrusting amino acids having a high molecular weight, which aid in improving the treatment of sewage to be treated in the form of a gel. The operation thereof consists of breaking the secondary bonds of the chelate, which in turn aids in the release of the cations (silver (Ag), zinc (Zn), copper (Cu)), resulting in the compounds that can be suspended in the sewage being acted upon, generating a system in suspension which subsequently enables the cleaning of the sewage, leaving the latter in translucent state.

Description

DEVELOPMENT OF A CHELATE IN GEL STATE FROM HIGH MOLECULAR WEIGHT AMINO ACIDS AND WITH SILVER, COPPER, ZINC IONICS TO INCREASE THE TREATMENT EFFICIENCY OF DIFFERENT WATER TYPES

RESIDUALS

TECHNICAL FIELD OF THE INVENTION.

The invention presented refers to a base of a chelate structure called EDTA, which contains the salts of tetrasodium and calcicodisodium (vershenates) of ethylenediaminetetraacetic acid (versenic acid) and where the sodium and calcium base is replaced by ions of copper, zinc and silver that generate a greater effect of ion exchange in acidic medium, adding primary, secondary and tertiary amino acids of high molecular weight on the organic structure of the chelate.

OBJECT OF THE INVENTION

Forming a gel state, which increases the potential for trapping of emulsified agents from water at a higher flocculation rate, due to the presence of said cations, which have a dissociation factor in the aqueous medium, accelerating the separation process of the waters and maintaining its action in a pH range of the order of 5 - 7 according to the difficulty that treated wastewater presents.

BACKGROUND:

The following patents were found internationally from the search to patent our invention:

1.- WO2009104945A1 4.- US5171477A

2.- US772284182 5.- US7674384B2

3.- CA095443A1 6.- WO2004013219A1 Among the most representative and that resemble our invention since 2-6 tend to use as a base the chelate with different cations and the first with a system of polyamides from amino acids in emulsion. WO2009104945A1

Said patent makes an emulsion polyamide resin from amino acids of low molecular weight but with high reactivity in the treatment of wastewater, in emulsion system said patent works all kinds of waters and have properties to decrease the bacterial life of these, whereby said resin of said patent is very complete.

• US772284182

Said invention relates to the use of polymerized chelates of the ionic or cationic type for the treatment of copper cations dissolved in water only by working as an ion sequestrant and using monomeric chelates of the acrylic type in the chelate structure that help maintain the capture of the Copper cations mentioned but do not have the activity required to obtain floccules that may be harmful to the environment. CA095443A1

This patent is based on the formation on the basis of ion exchange amino acids in the water for the capture of these and subsequently flocculate and sediment them, they recommend based on basic pH of 12.5 and the embedded in the structure of the amino acids the presence of calcium so that the flocculation tends to be heavier, this is dangerous, since calcium tends to erode the environment, making the land for sows desert., its use is limited in the treatment of leachate type water.

• US5171477A

Said patent is designed for the treatment of metal surfaces from polymerized chelates that prevent corrosion of said surfaces, therefore which is limited its action for the treatment of wastewater of the type leached or with the presence of anions, which will be inhibited.

• US7674384B2

This patent deals with chelate systems for the sequestration of heavy cations dissolved in water from exchange with calcium and zinc, in the chelate structure an active phosphate motif appears that helps with ion retention, but is limited to water leachate type or urban water

• WO2004013219A1

This patent presents the problems of attacking only dissolved cations in the water and that to achieve this a chelate structure is used from a dithytic acid or sulfur derivative which only has an action on the components dissolved in the water but not the organic matter that is emulsified in water, so it is limited to maintaining the attack on ions and cations according to the process conditions and therefore, that although it attacks the stability of the water, it leaves the formation of nanoparticles that are difficult to to separate later, this does not cause problems in the environment, but nevertheless, its action to leave water in process conditions is poor.

TECHNICAL PROBLEM TO BE SOLVED.

In general, the patents referred to from 2 to 6 tend to attack dissolved ions in the water with very poor attraction of organic material, causing the waters to be left with enough organic material in the form of well-stabilized nanoparticles, which tend to go to a bacterial process so that the waters are clean and can be used in the process.

As for the first patent, it attacks the stability not only of the anions and cations dissolved in the water, but also manages to break the stability of The particles formed by allowing the waters to be clean in compliance with the quality standards that are required, said patent works under the principle of nanotechnology and the theories of mycellation, which tends to break the stability of the nanoparticles, causing flocculation or sludges that are not toxic to the environment and that can be used for composting, fertilizers or biodigester fuel for the production of biogas, its defect is that it forms low density flocculars, therefore, tends to take the fall or sedimentation of the I flocculate, but leave the waters according to the regulations.

This is because it uses low molecular weight amino acids, which generates that the process uses cationic type flocculating agents, however, its advantage is that it works in pH of the order of 5.5 to 6.5 with good results, but the density or Specific gravity of the flocculation is very low, of the order of 0.5 to 0.6 which retards its sedimentation.

BRIEF DESCRIPTION OF THE INVENTION.

The present invention, is based on the principle of micelization that the waters have and therefore, presenting it in a gel state, facilitates the separation of the waters with heavier lumps and especially that do not affect the environment, since with the presence in the chelate structure, we have biodegradation which, the obtained sludge does not generate problems to the environment, since they tend to decompose and, by this, can be used as biofuels for biodigesters, or for the conformation of composts or biofertilizers.

The novelty of the invention depends on the conditions of presentation in a gel state of easy ionization and micellation that help to improve the treatment of water, whether in continuous, semi-continuous or batch processes; complying with the required water quality standards, whether for industrial or agricultural use. DETAILED DESCRIPTION OF THE INVENTION.

The present invention comprises a system within the chelate structure with the flocculating agents of the type aluminum (Al), copper (Cu), silver (Ag) or the three embedded within the chelate structure, with good dissociation power of the ions to break the stability of the particles of the waters to be treated, however, so that it can attack the nanoparticles that form in any type of water, because we embed inside the chelate structure in the valences part potential of the nitrogen (N) of the chelate, the amino acids, generating a lyophilic system, which we control its emulsion state, no longer solution, in a gel state, which allows to maintain the activity of the polymer structure, generating an improvement in the Water treatment of any type, with generation of greater specific gravity of the sediments or sludge and most importantly they are not toxic, similar to the first emulsified polyamide patent.

The present invention is of a gel state system of a chelate structure embedded in the organic structure of the polymerized amino acids that form a gel state, which allows to maintain greater reactivity in this innovation with heavier flocculation.

The basis of the invention is on a branch of high molecular weight amino acids embedded in the main structure of the chelate, in the area corresponding to the skeleton thereof, originating a molecule structure of the hybrid type with a positive part and another negative part, being The base structure:

HO.CO

i

CH ₂ CH ₂ CO.ÓH

! !

N - CH ₂ - CH ₂ - N

i i

CH ₂ CH ₂ CO.OH

!

HOCO Said base chelate called versenic acid or EDTA whose characteristic is to exchange cations for the destabilization of the water to be treated, is in the part of the protons cations of the type Silver (Ag), Zinc (Zn) and Copper (Cu) which are formed EDTA salt and whose ion exchange properties are quite active, giving as structure: catO.CO

i

CH ₂ CH ₂ CO.Ocat

! !

N - CH ₂ - CH ₂ - N

! i

CH ₂ CH ₂ CO.Ocat catOCO where cat = Ag, Cu, Zn.

Once the salt of the versénic acid (chelate) is obtained, a series of amino acids are selected whose characteristics to embed in the chain of the structure of the versénic acid and polymerize it until it reaches a gel state, are the following:

Taking advantage of its degree of dissolution in the aqueous medium, we take different mixtures of these amino acids to have the security of obtaining a highly active system and with tendencies towards active based on its activity. Making a series of mixtures based on the casein whose isoelectric value is larger and increasing its degree of scale the structure of the chelate in the potential valencies of nitrogen.

The nomenclature is to facilitate the behavior of the new structure of the molecule in the gel state.

The structure we have obtained from the gel-like molecule of the system is as follows: catO.CO

i

CH ₂ CH ₂ CO.Ocat

! i

RN - CH ₂ - CH ₂ - NR

! !

CH ₂ CH ₂ CO.Ocat

i

catOCO where cat = cations of Ag, Cu and Zn; and R = polymerized amino acids in oligomeric state; Where the nitrogen atoms are embedded in an aqueous base and at different temperature conditions, maintaining as variable the agitation speed and the isoelectric grade of the amino acids used for the structure of the molecule that we present:

% FROM %

CONVERSION GRADE OF ACTIVITY

WITH MICELAR TEMPERATURE GELIFICATION

CRITICAL AMINO ACID REACTION ° C

AT 1% MIXING WITH VISCOSITY SOLUTION

HIGH M (centipoise)

WATERY ACTIVITY

CALB

CHELATE -

45 - 55 600 - 750 40 75-80 CAT-CALB

QUELATO - CAT- CALB 40-42 800 - 900 50 65-70

QUELATO - CAT-CALB 35-40 1000- 1100 60 30-40

QUELATO - CAT-CALB 30-37 1200- 1300 70 25-30

CLAGLI

QUELATO - CAT- 50-57 750 - 800 40 75-80 CALGLI

CHELATE -

CAT- 40-45 900- 1090 50 65 -70

CALGL1

CHELATE -

CAT- 35-40 1300- 1400 60 45-50

CALGLI

CHEM

QUELATO - CAT-CHEM 28-30 950- 1350 40 45-48

CHELATE -

20-17 1400- 1550

CAT-CHEM 50 28-32 CHEMGLI

CHELATE -

CAT 35-37 850 - 920 40 49-52 .CHEMGLI

QUELATO - CAT 42-47 1500- 1600 50 30-35

.CHEMGLI

Dissociation measurements were made by conductimetric methods with a TCUSEL electrode with a constant of 0.75 and in water solutions with conductivity of 200-250 psiemens and with agitation of 25 to 35 rpm.

The degree of mycellation after the dissolution of the molecule obtained was based on conductimetry, using the same system giving the following values:

AREA

DEGREE OF KRAFT COVERING POINT

MICELIZATION MIXES ° C

Gr / Á ² Gr / cm ³

CAS / ALB

SINCE

80/20 4.5-4.9 65 250-300 UP

20/80

CAS / ALB / GLI

SINCE

5/5/15

3.8-4.2 70 178-250 UP

5/20/80

CAS / HEM

SINCE

6.7-8 50 450-560 80/20

20/80

CAS / HEM / GLI 5.6-6.2 56 375-420 FUNCTIONING

The action of the cations embedded in the structure of the chelate (Versenic acid) depending on the type of amino acid encrustation has it towards the side of the potential nitrogen valencies of the structure of the versenic acid (chelate) which are easily dissociable by time to have contact with the aqueous medium.

When the chelate has contact with the aqueous medium, the copper (Cu), Silver (Ag) and Zinc (Zn) cations tend to dissociate, leaving the molecule active, due to the enthalpy or dissociation heat they generate, once this happens, this amount of heat is enough for amino acid in the form of gel with weak bonds dissociates, creating a network for the capture of more organic material that is suspended in the water, achieving in ionic equilibrium, maintaining the action of ion capture that in turn tend to sediment due to a density difference , leaving the water with cations dissolved in the medium, which are neutralized by the action of the cations dissolved in solution and the gel-shaped amino acids that were embedded in the structure of the salts of the versenic acid (chelate).

Claims

CLAIMS. Having described the present invention sufficiently, I consider it a novelty and therefore claim as my exclusive property what I had in the following claims:

1. Chelate in the gel state from high molecular weight amino acids comprising a main chelate structure, characterized by an embedding of a branch of high molecular weight amino acids in the area corresponding to the skeleton thereof, which has in the part of the cation protons of the Silver (Ag), Zinc (Zn) and Copper (Cu) type, originating a molecule structure of the hybrid type with a positive and a negative part; also a selection of a series of amino acids with characteristics to embed in the chain of the structure of versenic acid and polymerize it in an oligomeric state until it reaches a gel state.

2. Chelate in the gel state from amino acids, as claimed in claim 1, characterized in that the main chelate structure is the so-called versenic acid or EDTA.

3. Chelate in the gel state from amino acids, as claimed in claim 1, characterized in that Gliadin-type amino acid (GLI) of a molecular weight of 28000 is used, an isolectric point of 7.56; Albumin (ALB) of molecular weight 42000 and an isoelectric point of 8.03; Casein (CAS) of molecular weight 375000 and isolectric point 9.74; Hemocyanin (HEM) of molecular weight 8000000 and isoelectric point 7.92.

4. Chelate in the gel state from amino acids, as claimed in claims 1 and 3, characterized by forming a CALB mixture, from CAS 80%, ALB 20%, to CAS 20%, ALB 80%, point isoelectric from 9.27 to 10.75, average molecular weight gel state 450000 to 500000.

5. Chelate in the gel state from amino acids, as claimed in claims 1 and 3, characterized by forming a CALBGLI mixture, from CAS 80%, ALB 5%, GLI 15%, to CAS 20%, ALB 5%, GLI 80%, with an isoelectric point of 9.27 to 8.75 and average molecular weight in the gel state of 400000 to 425000.

6. Chelate in the gel state from amino acids, as claimed in claims 1 and 3, characterized by forming a CHEM mixture, from CAS 80%, HEM 80%, to CAS 20%, HEM 80%, with an isoelectric point of 9.05 to 6.14 and an average molecular weight in gel state of 900000 to 950000.

7. Chelate in the gel state from amino acids, as claimed in claims 1 and 3, characterized by forming a CHEMGLI mixture, from CAS, HEM, GLI, with an isoelectric point of 7.14 to 7.92 and a molecular weight average gel state from 475000 to 515000.

8. The use of a chelate in the gel state from high molecular weight amino acids that has an amino acid branching is claimed, in addition to the part of the cation protons of the Silver (Ag), Zinc (Zn) and Copper (Cu), also a selection of a series of amino acids with characteristics to embed in the chain of the structure of the versenic acid and polymerize it in an oligomeric state until it reaches a gel state, for the treatment of different types of wastewater.