Patent
US 11,254,574GRAPHENE MATERIAL PREPARED FROM WASTE TIRE AND PREPARATION METHOD THEREOF
QINGFENG SUN
US
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Patent
Atlas literature
Patent
US 11,254,574Patent drawings and their descriptions. Click a drawing to enlarge it.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A method for preparing a graphene material using waste tires, comprising the steps of: (1) crushing waste tires to 30-200 meshes to obtain a tire powder; (2) mixing 1 part by weight of the tire powder obtained in step (1) with 1-10 parts by weight of KOH or an aqueous solution containing 1-10 parts by weight of KOH to obtain a homogeneous mixture; (3) drying the mixture obtained in step (2) at 50 °C -90 ° C for 12-48 h; (4) placing the dried mixture in a tube furnace and heating and calcining under a protective gas for 1-48 h to obtain a black lump; and (5) washing the black lump obtained in the step (4) with water, dilute hydrochloric acid or dilute sulfuric acid for at least 3 times, then washing it with water for at least 3 times to obtain a black powder, and then drying the black powder to obtain the graphene material. Original
The method in claim 1, wherein the tire powder in step (1) is 50-150 meshes. Original
The method in claim 1, wherein in step (2), 1 part by weight of the tire powder obtained in the step (1) is mixed with 1-7 parts by weight of KOH or an aqueous solution containing 1-7 parts by weight of KOH. Original
The method in claim 1, wherein in step (2), 1 part by weight of the tire powder obtained in the step (1) is mixed with 2-5 parts by weight of KOH or an aqueous solution containing 2-5 parts by weight of KOH. Original
The method in claim 1, wherein the temperature for the drying in step (3) is 60 C -80 ' C, and the duration for the drying is 12-24h. Original
The method in claim 1, wherein the protective gas in step (4) is at least one of nitrogen gas, argon gas and helium gas. Original
The method in claim 1, wherein: the rate of the heating in step (4) is 0.1 C -20 0 C per minute; the temperature for the calcination is 800 C -1200 0 C; and the duration for the calcination after reaching 800 ° C-1200 ° C is 1-48 h. Original
The method in claim 1, wherein: the rate of the heating in step (4) is 2 C -15 C per minute; the temperature for the calcination is 900 C -1 100' C; and the duration for the calcination after reaching 900 C -1100 C is 3-12 h. Original
The method in claim 1, wherein the concentration of the dilute hydrochloric acid in step (5) is 0.1- 0.5 mol/l. Original
The method in claim 1, wherein the concentration of the dilute hydrochloric acid in step (5) is 0.2-0.4 mol/l. Original
The method in claim 1, wherein the concentration of the dilute sulfuric acid in step (5) is 0.1-0.5 mol/l. Original
The method in claim 1, wherein the concentration of the dilute sulfuric acid in step (5) is 0.2-0.4 mol/l. Original
The method in claim 1, wherein the drying in step (5) is air drying at room temperature or oven drying. Original
A graphene material, prepared by a method comprising the steps of: (1) crushing waste tires to 30-200 meshes to obtain a tire powder; (2) mixing 1 part by weight of the tire powder obtained in step (1) with 1-10 parts by weight of KOH or an aqueous solution containing 1-10 parts by weight of KOH to obtain a homogeneous mixture; (3) drying the mixture obtained in step (2) at 50 °C -90 ° C for 12-48 h; (4) placing the dried mixture in a tube furnace and heating and calcining under a protective gas for 1-48 h to obtain a black lump; and (5) washing the black lump obtained in step (4) with water, dilute hydrochloric acid or dilute sulfuric acid for at least 3 times, then washing it with water for at least 3 times to obtain a black powder, and then drying the black powder to obtain the graphene material. Withdrawn
The graphene material in claim 14, wherein in step (2), 1 part by weight of the tire powder obtained in step (1) is mixed with 1-7 parts by weight of KOH or an aqueous solution containing 1-7 parts by weight of KOH. Withdrawn
The graphene material in claim 14, wherein in step (2), 1 part by weight of the tire powder obtained in step (1) is mixed with 2-5 parts by weight of KOH or an aqueous solution containing 2-5 parts by weight of KOH. Withdrawn
The graphene material in claim 14, wherein: the rate of the heating in step (4) is 0.1 0 C -20 0 C per minute; the temperature for the calcination is 800 C -1200 0 C; and the duration for the calcination after reaching 800 ° C-1200 ° C is 1-48 h. Withdrawn
The graphene material in claim 14, wherein: the rate of the heating in step (4) is 2 C -15 C per minute; the temperature for the calcination is 900 C -1 100' C; and the duration for the calcination after reaching 900 C -1100 C is 3-12 h. Withdrawn
A graphene material prepared using waste tires, wherein the graphene material has a three-dimensional structure composed of few-layer graphene intertwined and connected with each other. Withdrawn
The graphene material in claim 19, wherein an X-ray diffraction pattern of the graphene material is as shown in Fig. 4. Withdrawn
Materials described outside the worked examples.
graphene material
tire powder from waste tires
KOH
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
XRD pattern of graphene material from waste tires | — | graphene material |
Pressure | 1–10 pa |
Patent
Atlas literature
Patent
US 11,254,574Patent drawings and their descriptions. Click a drawing to enlarge it.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A method for preparing a graphene material using waste tires, comprising the steps of: (1) crushing waste tires to 30-200 meshes to obtain a tire powder; (2) mixing 1 part by weight of the tire powder obtained in step (1) with 1-10 parts by weight of KOH or an aqueous solution containing 1-10 parts by weight of KOH to obtain a homogeneous mixture; (3) drying the mixture obtained in step (2) at 50 °C -90 ° C for 12-48 h; (4) placing the dried mixture in a tube furnace and heating and calcining under a protective gas for 1-48 h to obtain a black lump; and (5) washing the black lump obtained in the step (4) with water, dilute hydrochloric acid or dilute sulfuric acid for at least 3 times, then washing it with water for at least 3 times to obtain a black powder, and then drying the black powder to obtain the graphene material. Original
The method in claim 1, wherein the tire powder in step (1) is 50-150 meshes. Original
The method in claim 1, wherein in step (2), 1 part by weight of the tire powder obtained in the step (1) is mixed with 1-7 parts by weight of KOH or an aqueous solution containing 1-7 parts by weight of KOH. Original
The method in claim 1, wherein in step (2), 1 part by weight of the tire powder obtained in the step (1) is mixed with 2-5 parts by weight of KOH or an aqueous solution containing 2-5 parts by weight of KOH. Original
The method in claim 1, wherein the temperature for the drying in step (3) is 60 C -80 ' C, and the duration for the drying is 12-24h. Original
The method in claim 1, wherein the protective gas in step (4) is at least one of nitrogen gas, argon gas and helium gas. Original
The method in claim 1, wherein: the rate of the heating in step (4) is 0.1 C -20 0 C per minute; the temperature for the calcination is 800 C -1200 0 C; and the duration for the calcination after reaching 800 ° C-1200 ° C is 1-48 h. Original
The method in claim 1, wherein: the rate of the heating in step (4) is 2 C -15 C per minute; the temperature for the calcination is 900 C -1 100' C; and the duration for the calcination after reaching 900 C -1100 C is 3-12 h. Original
The method in claim 1, wherein the concentration of the dilute hydrochloric acid in step (5) is 0.1- 0.5 mol/l. Original
The method in claim 1, wherein the concentration of the dilute hydrochloric acid in step (5) is 0.2-0.4 mol/l. Original
The method in claim 1, wherein the concentration of the dilute sulfuric acid in step (5) is 0.1-0.5 mol/l. Original
The method in claim 1, wherein the concentration of the dilute sulfuric acid in step (5) is 0.2-0.4 mol/l. Original
The method in claim 1, wherein the drying in step (5) is air drying at room temperature or oven drying. Original
A graphene material, prepared by a method comprising the steps of: (1) crushing waste tires to 30-200 meshes to obtain a tire powder; (2) mixing 1 part by weight of the tire powder obtained in step (1) with 1-10 parts by weight of KOH or an aqueous solution containing 1-10 parts by weight of KOH to obtain a homogeneous mixture; (3) drying the mixture obtained in step (2) at 50 °C -90 ° C for 12-48 h; (4) placing the dried mixture in a tube furnace and heating and calcining under a protective gas for 1-48 h to obtain a black lump; and (5) washing the black lump obtained in step (4) with water, dilute hydrochloric acid or dilute sulfuric acid for at least 3 times, then washing it with water for at least 3 times to obtain a black powder, and then drying the black powder to obtain the graphene material. Withdrawn
The graphene material in claim 14, wherein in step (2), 1 part by weight of the tire powder obtained in step (1) is mixed with 1-7 parts by weight of KOH or an aqueous solution containing 1-7 parts by weight of KOH. Withdrawn
The graphene material in claim 14, wherein in step (2), 1 part by weight of the tire powder obtained in step (1) is mixed with 2-5 parts by weight of KOH or an aqueous solution containing 2-5 parts by weight of KOH. Withdrawn
The graphene material in claim 14, wherein: the rate of the heating in step (4) is 0.1 0 C -20 0 C per minute; the temperature for the calcination is 800 C -1200 0 C; and the duration for the calcination after reaching 800 ° C-1200 ° C is 1-48 h. Withdrawn
The graphene material in claim 14, wherein: the rate of the heating in step (4) is 2 C -15 C per minute; the temperature for the calcination is 900 C -1 100' C; and the duration for the calcination after reaching 900 C -1100 C is 3-12 h. Withdrawn
A graphene material prepared using waste tires, wherein the graphene material has a three-dimensional structure composed of few-layer graphene intertwined and connected with each other. Withdrawn
The graphene material in claim 19, wherein an X-ray diffraction pattern of the graphene material is as shown in Fig. 4. Withdrawn
Materials described outside the worked examples.
graphene material
tire powder from waste tires
KOH
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
XRD pattern of graphene material from waste tires | — | graphene material |
Pressure | 1–10 pa |
Patent
Atlas literature
Patent
US 11,254,574Patent drawings and their descriptions. Click a drawing to enlarge it.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A method for preparing a graphene material using waste tires, comprising the steps of: (1) crushing waste tires to 30-200 meshes to obtain a tire powder; (2) mixing 1 part by weight of the tire powder obtained in step (1) with 1-10 parts by weight of KOH or an aqueous solution containing 1-10 parts by weight of KOH to obtain a homogeneous mixture; (3) drying the mixture obtained in step (2) at 50 °C -90 ° C for 12-48 h; (4) placing the dried mixture in a tube furnace and heating and calcining under a protective gas for 1-48 h to obtain a black lump; and (5) washing the black lump obtained in the step (4) with water, dilute hydrochloric acid or dilute sulfuric acid for at least 3 times, then washing it with water for at least 3 times to obtain a black powder, and then drying the black powder to obtain the graphene material. Original
The method in claim 1, wherein the tire powder in step (1) is 50-150 meshes. Original
The method in claim 1, wherein in step (2), 1 part by weight of the tire powder obtained in the step (1) is mixed with 1-7 parts by weight of KOH or an aqueous solution containing 1-7 parts by weight of KOH. Original
The method in claim 1, wherein in step (2), 1 part by weight of the tire powder obtained in the step (1) is mixed with 2-5 parts by weight of KOH or an aqueous solution containing 2-5 parts by weight of KOH. Original
The method in claim 1, wherein the temperature for the drying in step (3) is 60 C -80 ' C, and the duration for the drying is 12-24h. Original
The method in claim 1, wherein the protective gas in step (4) is at least one of nitrogen gas, argon gas and helium gas. Original
The method in claim 1, wherein: the rate of the heating in step (4) is 0.1 C -20 0 C per minute; the temperature for the calcination is 800 C -1200 0 C; and the duration for the calcination after reaching 800 ° C-1200 ° C is 1-48 h. Original
The method in claim 1, wherein: the rate of the heating in step (4) is 2 C -15 C per minute; the temperature for the calcination is 900 C -1 100' C; and the duration for the calcination after reaching 900 C -1100 C is 3-12 h. Original
The method in claim 1, wherein the concentration of the dilute hydrochloric acid in step (5) is 0.1- 0.5 mol/l. Original
The method in claim 1, wherein the concentration of the dilute hydrochloric acid in step (5) is 0.2-0.4 mol/l. Original
The method in claim 1, wherein the concentration of the dilute sulfuric acid in step (5) is 0.1-0.5 mol/l. Original
The method in claim 1, wherein the concentration of the dilute sulfuric acid in step (5) is 0.2-0.4 mol/l. Original
The method in claim 1, wherein the drying in step (5) is air drying at room temperature or oven drying. Original
A graphene material, prepared by a method comprising the steps of: (1) crushing waste tires to 30-200 meshes to obtain a tire powder; (2) mixing 1 part by weight of the tire powder obtained in step (1) with 1-10 parts by weight of KOH or an aqueous solution containing 1-10 parts by weight of KOH to obtain a homogeneous mixture; (3) drying the mixture obtained in step (2) at 50 °C -90 ° C for 12-48 h; (4) placing the dried mixture in a tube furnace and heating and calcining under a protective gas for 1-48 h to obtain a black lump; and (5) washing the black lump obtained in step (4) with water, dilute hydrochloric acid or dilute sulfuric acid for at least 3 times, then washing it with water for at least 3 times to obtain a black powder, and then drying the black powder to obtain the graphene material. Withdrawn
The graphene material in claim 14, wherein in step (2), 1 part by weight of the tire powder obtained in step (1) is mixed with 1-7 parts by weight of KOH or an aqueous solution containing 1-7 parts by weight of KOH. Withdrawn
The graphene material in claim 14, wherein in step (2), 1 part by weight of the tire powder obtained in step (1) is mixed with 2-5 parts by weight of KOH or an aqueous solution containing 2-5 parts by weight of KOH. Withdrawn
The graphene material in claim 14, wherein: the rate of the heating in step (4) is 0.1 0 C -20 0 C per minute; the temperature for the calcination is 800 C -1200 0 C; and the duration for the calcination after reaching 800 ° C-1200 ° C is 1-48 h. Withdrawn
The graphene material in claim 14, wherein: the rate of the heating in step (4) is 2 C -15 C per minute; the temperature for the calcination is 900 C -1 100' C; and the duration for the calcination after reaching 900 C -1100 C is 3-12 h. Withdrawn
A graphene material prepared using waste tires, wherein the graphene material has a three-dimensional structure composed of few-layer graphene intertwined and connected with each other. Withdrawn
The graphene material in claim 19, wherein an X-ray diffraction pattern of the graphene material is as shown in Fig. 4. Withdrawn
Materials described outside the worked examples.
graphene material
tire powder from waste tires
KOH
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
XRD pattern of graphene material from waste tires | — | graphene material |
Pressure | 1–10 pa |
Patent
Atlas literature
Patent
US 11,254,574Patent drawings and their descriptions. Click a drawing to enlarge it.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A method for preparing a graphene material using waste tires, comprising the steps of: (1) crushing waste tires to 30-200 meshes to obtain a tire powder; (2) mixing 1 part by weight of the tire powder obtained in step (1) with 1-10 parts by weight of KOH or an aqueous solution containing 1-10 parts by weight of KOH to obtain a homogeneous mixture; (3) drying the mixture obtained in step (2) at 50 °C -90 ° C for 12-48 h; (4) placing the dried mixture in a tube furnace and heating and calcining under a protective gas for 1-48 h to obtain a black lump; and (5) washing the black lump obtained in the step (4) with water, dilute hydrochloric acid or dilute sulfuric acid for at least 3 times, then washing it with water for at least 3 times to obtain a black powder, and then drying the black powder to obtain the graphene material. Original
The method in claim 1, wherein the tire powder in step (1) is 50-150 meshes. Original
The method in claim 1, wherein in step (2), 1 part by weight of the tire powder obtained in the step (1) is mixed with 1-7 parts by weight of KOH or an aqueous solution containing 1-7 parts by weight of KOH. Original
The method in claim 1, wherein in step (2), 1 part by weight of the tire powder obtained in the step (1) is mixed with 2-5 parts by weight of KOH or an aqueous solution containing 2-5 parts by weight of KOH. Original
The method in claim 1, wherein the temperature for the drying in step (3) is 60 C -80 ' C, and the duration for the drying is 12-24h. Original
The method in claim 1, wherein the protective gas in step (4) is at least one of nitrogen gas, argon gas and helium gas. Original
The method in claim 1, wherein: the rate of the heating in step (4) is 0.1 C -20 0 C per minute; the temperature for the calcination is 800 C -1200 0 C; and the duration for the calcination after reaching 800 ° C-1200 ° C is 1-48 h. Original
The method in claim 1, wherein: the rate of the heating in step (4) is 2 C -15 C per minute; the temperature for the calcination is 900 C -1 100' C; and the duration for the calcination after reaching 900 C -1100 C is 3-12 h. Original
The method in claim 1, wherein the concentration of the dilute hydrochloric acid in step (5) is 0.1- 0.5 mol/l. Original
The method in claim 1, wherein the concentration of the dilute hydrochloric acid in step (5) is 0.2-0.4 mol/l. Original
The method in claim 1, wherein the concentration of the dilute sulfuric acid in step (5) is 0.1-0.5 mol/l. Original
The method in claim 1, wherein the concentration of the dilute sulfuric acid in step (5) is 0.2-0.4 mol/l. Original
The method in claim 1, wherein the drying in step (5) is air drying at room temperature or oven drying. Original
A graphene material, prepared by a method comprising the steps of: (1) crushing waste tires to 30-200 meshes to obtain a tire powder; (2) mixing 1 part by weight of the tire powder obtained in step (1) with 1-10 parts by weight of KOH or an aqueous solution containing 1-10 parts by weight of KOH to obtain a homogeneous mixture; (3) drying the mixture obtained in step (2) at 50 °C -90 ° C for 12-48 h; (4) placing the dried mixture in a tube furnace and heating and calcining under a protective gas for 1-48 h to obtain a black lump; and (5) washing the black lump obtained in step (4) with water, dilute hydrochloric acid or dilute sulfuric acid for at least 3 times, then washing it with water for at least 3 times to obtain a black powder, and then drying the black powder to obtain the graphene material. Withdrawn
The graphene material in claim 14, wherein in step (2), 1 part by weight of the tire powder obtained in step (1) is mixed with 1-7 parts by weight of KOH or an aqueous solution containing 1-7 parts by weight of KOH. Withdrawn
The graphene material in claim 14, wherein in step (2), 1 part by weight of the tire powder obtained in step (1) is mixed with 2-5 parts by weight of KOH or an aqueous solution containing 2-5 parts by weight of KOH. Withdrawn
The graphene material in claim 14, wherein: the rate of the heating in step (4) is 0.1 0 C -20 0 C per minute; the temperature for the calcination is 800 C -1200 0 C; and the duration for the calcination after reaching 800 ° C-1200 ° C is 1-48 h. Withdrawn
The graphene material in claim 14, wherein: the rate of the heating in step (4) is 2 C -15 C per minute; the temperature for the calcination is 900 C -1 100' C; and the duration for the calcination after reaching 900 C -1100 C is 3-12 h. Withdrawn
A graphene material prepared using waste tires, wherein the graphene material has a three-dimensional structure composed of few-layer graphene intertwined and connected with each other. Withdrawn
The graphene material in claim 19, wherein an X-ray diffraction pattern of the graphene material is as shown in Fig. 4. Withdrawn
Materials described outside the worked examples.
graphene material
tire powder from waste tires
KOH
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
XRD pattern of graphene material from waste tires | — | graphene material |
Pressure | 1–10 pa |
dilute hydrochloric acid
HCl
dilute sulfuric acid
H₂SO₄
| — |
Pressure | 1–7 pa | — |
Pressure | 2–5 pa | — |
dilute hydrochloric acid
HCl
dilute sulfuric acid
H₂SO₄
| — |
Pressure | 1–7 pa | — |
Pressure | 2–5 pa | — |
dilute hydrochloric acid
HCl
dilute sulfuric acid
H₂SO₄
| — |
Pressure | 1–7 pa | — |
Pressure | 2–5 pa | — |
dilute hydrochloric acid
HCl
dilute sulfuric acid
H₂SO₄
| — |
Pressure | 1–7 pa | — |
Pressure | 2–5 pa | — |