Charged composite materials, methods of synthesizing, and methods of use

Patent metadata

Field	Value
Publication number	US-11242478-B2
Application number	US-201916568693-A
Country	US
Kind code	B2
Filing date	Sep 12, 2019
Priority date	Sep 13, 2018
Publication date	Feb 8, 2022
Grant date	Feb 8, 2022

Abstract

Embodiments of the present disclosure are directed to methods of producing charged composite materials. The method may include synthesizing a composite material and charging the composite material to produce a charged composite material. The composite material may include an inorganic composite component and an organic component. The organic component may include one or more primary or secondary amines. The organic component may be covalently bonded to the inorganic composite component. The charged composite material may be positively charged.

First claim

What is claimed is:

1. A method of producing a charged composite material, the method comprising:
synthesizing a composite material, the composite material comprising a inorganic composite component and an organic component; and
charging the composite material to produce a charged composite material;
where the organic component comprises one or more primary or secondary amines;
where the organic component is covalently bonded to the inorganic composite component; and
where the charged composite material is positively charged;
where synthesizing the composite material comprises combining a material comprising magnesium and a material comprising silicon; and
where the material comprising silicon comprises one or more of 3-(aminophenoxy)propyltriethoxysilane, N-(2-aminoethyl)-3-aminopropyltrimethoxysilane, (3-aminopropyl)trimethoxysilane, 11-Aminoundecyltrimethoxysilane, N-(6-aminohexyl)aminomethyltrimethoxysilane, or N-(2-aminoethyl)-11-aminoundecyltrimethoxysilane.

2. The method of claim 1 , further comprising charging the composite material by acidification or by base treatment of the primary or secondary amines.

3. The method of claim 1 , further comprising charging the composite material by quarternization of the primary or secondary amines.

4. A subterranean wellbore fluid comprising:
an aqueous base fluid; and
a charged composite material comprising
a inorganic composite component comprising magnesium and silicon; and
an organic component chosen from primary and secondary amines;

where the organic component is covalently bonded to the inorganic component; and
where the inorganic composite component comprises an inner octahedral layer comprising magnesium, a first tetrahedral outer layer comprising silicon on one side of the inner octahedral layer comprising magnesium, and a second tetrahedral outer layer comprising silicon on the opposite side of the inner octahedral layer comprising magnesium.

5. The subterranean wellbore fluid of claim 4 , where the composite material is positively charged.

6. The subterranean wellbore fluid of claim 4 , where the primary and secondary amines comprise alkyl or aryl primary and secondary amines.

7. A charged composite material comprising:
a inorganic composite component comprising magnesium and silicon, and
an organic component comprising one or more primary or secondary amines;
where the composite material is positively charged;
where the organic component is covalently bonded to the inorganic composite component; and
where the magnesium is present in an octahedral layer.

8. The charged composite material of claim 7 , where the silicon is present in two tetrahedral layers.

9. The charged composite material of claim 7 , where the magnesium component comprises one or more of 3-(aminophenoxy)propyltriethoxysilane, N-(2-aminoethyl)-3-aminopropyltrimethoxysilane, (3-aminopropyl)trimethoxysilane, 11-Aminoundecyltrimethoxysilane, N-(6-aminohexyl)aminomethyltrimethoxysilane, or N-(2-aminoethyl)-11-aminoundecyltrimethoxysilane.

10. The charged composite material of claim 7 , where the silicon to magnesium ratio is from 0.7:1 to 1.5:1.

11. The charged composite material of claim 7 , where the inorganic composite component has a thickness of from 1 nm to 5 nm and a lateral dimension of from 50 nm to 500 nm.

Assignees

• Saudi Arabian Oil Co

Inventors

• Patel Hasmukh A
• Santra Ashok
• Thaemlitz Carl

Classifications

• C09K8/528 Primary

  inorganic depositions, e.g. sulfates or carbonates · CPC title

• C09K8/032

  Inorganic additives · CPC title

• C09K8/035

  Organic additives · CPC title

• C09K8/12 Primary

  containing synthetic organic macromolecular compounds or their precursors · CPC title

• C01B33/22

  Magnesium silicates · CPC title