US4790954A
Expired / Lapsed
US
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Mixed metal hydroxide-clay adducts as thickeners for water and other hydrophylic fluids
Assignee: Master Builders Solutions Deutschland GmbH
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Filing: 1987-05-07
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Granted: 1988-12-13
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Expires: 2007-05-07
Abstract
Abstract Novel compositions useful as fluid gelling agents, especially for use in subterranean applications such as drilling fluids, are prepared by reacting an aqueous dispersion of a clay, such as bentonite, with an aqueous gel of a monodispersed mixed metal layered hydroxide of the formula Li m D d T(OH).sub.(m+2d+3+na) A a n , where D is a divalent metal, such as Mg, T is a trivalent metal, such as Al, and A represents other monovalent or polyvalent anions, the formula being described in detail in the disclosure.
Inventors
- 👤 John L. Burba, III
- 👤 Audrey L. Barnes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:37
CPC Classifications
B; B82; B82Y; B82Y30/00; C; C01; C01B; C01B33/00; C01B33/20; C01B33/26; C01B33/36; C01B33/38; C01B33/40; C01B33/44; C04; C04B; C04B33/00; C04B33/02; C04B33/04; C09; C09K; C09K8/00; C09K8/02; C09K8/03; C09K8/032; C09K8/04; C09K8/14; C09K8/145; C09K8/16; C09K8/60; C09K8/62; C09K8/66; C09K8/665; C09K8/84; C09K8/845; C10; C10M; C10M113/00; C10M125/00; C10M125/10; C10M173/00; C10M173/02; C10M177/00; C10M2201/00; C10M2201/02; C10M2201/06; C10M2201/0606; C10M2201/061; C10M2201/0616; C10M2201/062; C10M2201/0626; C10M2201/063; C10M2201/065; C10M2201/0656; C10M2201/066; C10M2201/0666; C10M2201/08; C10M2201/0806; C10M2201/085; C10M2201/0856; C10M2201/086; C10M2201/0866; C10M2201/087; C10M2201/0876; C10M2201/10; C10M2201/1013; C10M2201/102; C10M2201/1026; C10M2201/103; C10M2201/1036; C10M2201/14; C10M2201/145; C10M2201/16; C10M2201/18; C10N; C10N2010/00; C10N2010/04; C10N2050/00; C10N2050/01; Y; Y10; Y10S; Y10S507/00; Y10S507/901
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
154 words
A method for reacting a mineral clay with a monodispersed monolayer mixed metal hydroxide of the formula: Li.sub.m D.sub.d T(OH).sub.(m+2d+3+na) A.sub.a.sup.n, where m is an amount of Li in the range of zero to about 1; D is a divalent metal ion, and d is an amount of D in the range of zero to about 4; T is a trivalent metal ion; A represents monovalent or polyvalent anions of valence -n, with a being the amount of A anions; (m+d) is greater than zero and (m+2d+3+na) is equal to or greater than 3; said method comprising adding a small amount of a hydrophylic organic material to an aqueous gel of the above described compound, than drying the said aqueous gel sufficiently to obtain the compound in powder form, subsequently redispersing the powder in an aqueous media, and than combining the redispersed powder with an aqueous dispersion of clay to form an adduct therewith.
Claim 2
Independent Claim
154 words
A method for reacting a mineral clay with a monodispersed monolayer mixed metal hydroxide of the formula: Li.sub.m D.sub.d T(OH).sub.(m+2d+3+na) A.sub.a.sup.n, where m is an amount of Li in the range of zero to about 1; D is a divalent metal ion, and d is an amount of D in the range of zero to about 4; T is a trivalent metal ion; A represents monovalent or polyvalent anions of valence -n, with a being the amount of A anions; (m+d) is greater than zero and (m+2d+3+na) is equal to or greater than 3; said method comprising adding a small amount of a hydrophylic organic material to an aqueous gel of the above described compound, than drying the said aqueous gel sufficiently to obtain the compound in powder form, subsequently redispersing the powder in an aqueous media, and than combining the redispersed powder with an aqueous dispersion of clay to form an adduct therewith.
Claim 3
Dependent Claim
19 words
The method of claim 1 wherein m represents an amount in the range of about 0.5 to about 0.75.
Claim 4
Dependent Claim
19 words
The method of claim 1 wherein d represents an amount in the range of about 1 to about 3.
Claim 5
Dependent Claim
13 words
The method of claim 1 wherein d represents an amount of about 1.
Claim 6
Dependent Claim
27 words
The method of claim 1 wherein D is at least one of the group consisting of Mg, Ca, Ba, Sr, Mn, Fe, Co, Ni, Cu, and Zn.
Claim 7
Dependent Claim
19 words
The method of claim 1 wherein D is at least one of the group consisting of Mg and Ca.
Claim 8
Dependent Claim
9 words
The method of claim 1 wherein D is Mg.
Claim 9
Dependent Claim
9 words
The method of claim 1 wherein D is Ca.
Claim 10
Dependent Claim
21 words
The method of claim 1 wherein T is at least one of the group consisting of Al, Ga, Cr, and Fe.
Claim 11
Dependent Claim
11 words
The method of claim 1 wherein T is Al or Fe.
Claim 12
Dependent Claim
9 words
The method of claim 1 wherein T is Al.
Claim 13
Dependent Claim
9 words
The method of claim 1 wherein T is Fe.
Claim 14
Dependent Claim
16 words
The method of claim 1 wherein A is at least one monovalent or polyvalent inorganic anion.
Claim 15
Dependent Claim
16 words
The method of claim 1 wherein A is at least one monovalent or polyvalent organic anion.
Claim 16
Dependent Claim
33 words
The method of claim 1 wherein A is at least one monovalent or polyvalent anion of the group consisting of halide, sulfate, nitrate, phosphate, carbonate, glycolate, lignosulfonate, polycarboxylate, carboxyl, poly-acrylate, and sodium polyacrylate.
Claim 17
Dependent Claim
33 words
The method of claim 1 wherein the mineral clay is at least one of the group consisting of bentonite, kaolinite, halloysite, smectite, illite, montmorillonite, saconite, vermiculite, chlorite, attapulgite, sepiolite, palygorskite, and Fullers's earth.
Claim 18
Dependent Claim
47 words
The method of claim 1 wherein the mineral clay is at least one of the group consisting of amorphous clays of the allophane group and crystalline clays of the 2-layer type, 3-layer type, expanding type, non-expanding type, elongate type, regular mixed layer type, and chain structure type.
Claim 19
Dependent Claim
11 words
The method of claim 1 wherein the mineral clay is bentonite.
Claim 20
Dependent Claim
12 words
The method of claim 1 wherein the mineral clay is beneficiated bentonite.
Claim 21
Dependent Claim
22 words
The method of claim 1 wherein the weight ratio of monolayered hydroxide/clay is in the range of about 0.02/1 to about 1/1.
Claim 22
Dependent Claim
25 words
The method of claim 1 wherein the mixed metal hydroxide compound is MgAl(OH) 4 .7 Cl 0 .3 and the clay is a bentonite clay.
Claim 23
Dependent Claim
14 words
The method of claim 1 wherein the hydrophyllic organic material comprises a polyhydric compound.
Claim 24
Dependent Claim
14 words
The method of claim 1 wherein the hydrophylic organic material comprises glycerine or polyglycol.
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