Patent
US 10,500,547GRAPHENE MEMBRANE FILM FOR SOLVENT PURIFICATION, METHOD FOR PRODUCING SAME, AND SOLVENT PURIFICATION SYSTEM USING SAME
Seung hyun LEE
US
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Patent
Atlas literature
Patent
US 10,500,547Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1. Referring to
FIG. 2 is a schematic cross-sectional view of a graphene membrane film for solvent purification, which is manufactured by the method of
FIG. 3. As illustrated, a solvent purification system 100 using a graphene membrane film for solvent purification includes a filter housing 110 provided with a …
FIG. 4 is a detailed cross- sectional view illustrating a graphene membrane film and a filter housing in
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
1-2. Canceled
Canceled
A method for producing a graphene membrane film for solvent purification, the method comprising: preparing a graphene oxide dispersion liquid by dispersing graphene oxide in dispersion medium; confining the graphene oxide dispersion liquid between a pair of substrates; and applying heat and pressure to the graphene oxide dispersion liquid between the substrates to perform a hydrothermal reaction to concurrently thermally reduce the graphene oxide and bind graphenes, wherein the graphene oxide dispersion liquid has a concentration of about 0.1 mg/ml to about 200 mg/ml, wherein the applying heat and pressure comprises positioning the substrates, between which the graphene oxide dispersion liquid is confined, into an airtight pressure container and applying heat and pressure, wherein a temperature of the applying heat and pressure is in a range of about 140 ° C to about 200 °C, wherein a time of the applying heat and pressure is in a range of about 1 hour to about 24 hours, and wherein a pressure of the applying heat and pressure is in a range of about 5 bar and about 15 bar. Currently amended
The method of claim 3, wherein the graphene oxide comprises graphene oxide plate-shaped flakes. New
The method of claim 3, wherein a thickness of the film is about 1 nm to about 10 pm. New
The method of claim 3, wherein the pair of substrates comprises a borosilicate glass, a soda lime glass, a silicon wafer, and a sapphire wafer. New
4-15. Canceled
Canceled
Layer stacks claimed or described, ordered top of device to substrate.
graphene membrane film for solvent purification
Materials described outside the worked examples.
graphene oxide
graphene membrane film
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
d-spacing between stacked graphene plate-shaped flakes | 1–10 Angstrom | graphene membrane film |
carbon/oxygen weight ratio (C/O ratio) | 3–99.9 wt% C / wt% O |
Table 1
The graphene membrane film 40 for solvent purification, which was
100 according to an embodiment of the present disclosure, and examples of the separation test were shown in [Table 1].
p. 13
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,500,547Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1. Referring to
FIG. 2 is a schematic cross-sectional view of a graphene membrane film for solvent purification, which is manufactured by the method of
FIG. 3. As illustrated, a solvent purification system 100 using a graphene membrane film for solvent purification includes a filter housing 110 provided with a …
FIG. 4 is a detailed cross- sectional view illustrating a graphene membrane film and a filter housing in
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
1-2. Canceled
Canceled
A method for producing a graphene membrane film for solvent purification, the method comprising: preparing a graphene oxide dispersion liquid by dispersing graphene oxide in dispersion medium; confining the graphene oxide dispersion liquid between a pair of substrates; and applying heat and pressure to the graphene oxide dispersion liquid between the substrates to perform a hydrothermal reaction to concurrently thermally reduce the graphene oxide and bind graphenes, wherein the graphene oxide dispersion liquid has a concentration of about 0.1 mg/ml to about 200 mg/ml, wherein the applying heat and pressure comprises positioning the substrates, between which the graphene oxide dispersion liquid is confined, into an airtight pressure container and applying heat and pressure, wherein a temperature of the applying heat and pressure is in a range of about 140 ° C to about 200 °C, wherein a time of the applying heat and pressure is in a range of about 1 hour to about 24 hours, and wherein a pressure of the applying heat and pressure is in a range of about 5 bar and about 15 bar. Currently amended
The method of claim 3, wherein the graphene oxide comprises graphene oxide plate-shaped flakes. New
The method of claim 3, wherein a thickness of the film is about 1 nm to about 10 pm. New
The method of claim 3, wherein the pair of substrates comprises a borosilicate glass, a soda lime glass, a silicon wafer, and a sapphire wafer. New
4-15. Canceled
Canceled
Layer stacks claimed or described, ordered top of device to substrate.
graphene membrane film for solvent purification
Materials described outside the worked examples.
graphene oxide
graphene membrane film
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
d-spacing between stacked graphene plate-shaped flakes | 1–10 Angstrom | graphene membrane film |
carbon/oxygen weight ratio (C/O ratio) | 3–99.9 wt% C / wt% O |
Table 1
The graphene membrane film 40 for solvent purification, which was
100 according to an embodiment of the present disclosure, and examples of the separation test were shown in [Table 1].
p. 13
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,500,547Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1. Referring to
FIG. 2 is a schematic cross-sectional view of a graphene membrane film for solvent purification, which is manufactured by the method of
FIG. 3. As illustrated, a solvent purification system 100 using a graphene membrane film for solvent purification includes a filter housing 110 provided with a …
FIG. 4 is a detailed cross- sectional view illustrating a graphene membrane film and a filter housing in
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
1-2. Canceled
Canceled
A method for producing a graphene membrane film for solvent purification, the method comprising: preparing a graphene oxide dispersion liquid by dispersing graphene oxide in dispersion medium; confining the graphene oxide dispersion liquid between a pair of substrates; and applying heat and pressure to the graphene oxide dispersion liquid between the substrates to perform a hydrothermal reaction to concurrently thermally reduce the graphene oxide and bind graphenes, wherein the graphene oxide dispersion liquid has a concentration of about 0.1 mg/ml to about 200 mg/ml, wherein the applying heat and pressure comprises positioning the substrates, between which the graphene oxide dispersion liquid is confined, into an airtight pressure container and applying heat and pressure, wherein a temperature of the applying heat and pressure is in a range of about 140 ° C to about 200 °C, wherein a time of the applying heat and pressure is in a range of about 1 hour to about 24 hours, and wherein a pressure of the applying heat and pressure is in a range of about 5 bar and about 15 bar. Currently amended
The method of claim 3, wherein the graphene oxide comprises graphene oxide plate-shaped flakes. New
The method of claim 3, wherein a thickness of the film is about 1 nm to about 10 pm. New
The method of claim 3, wherein the pair of substrates comprises a borosilicate glass, a soda lime glass, a silicon wafer, and a sapphire wafer. New
4-15. Canceled
Canceled
Layer stacks claimed or described, ordered top of device to substrate.
graphene membrane film for solvent purification
Materials described outside the worked examples.
graphene oxide
graphene membrane film
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
d-spacing between stacked graphene plate-shaped flakes | 1–10 Angstrom | graphene membrane film |
carbon/oxygen weight ratio (C/O ratio) | 3–99.9 wt% C / wt% O |
Table 1
The graphene membrane film 40 for solvent purification, which was
100 according to an embodiment of the present disclosure, and examples of the separation test were shown in [Table 1].
p. 13
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,500,547Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1. Referring to
FIG. 2 is a schematic cross-sectional view of a graphene membrane film for solvent purification, which is manufactured by the method of
FIG. 3. As illustrated, a solvent purification system 100 using a graphene membrane film for solvent purification includes a filter housing 110 provided with a …
FIG. 4 is a detailed cross- sectional view illustrating a graphene membrane film and a filter housing in
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
1-2. Canceled
Canceled
A method for producing a graphene membrane film for solvent purification, the method comprising: preparing a graphene oxide dispersion liquid by dispersing graphene oxide in dispersion medium; confining the graphene oxide dispersion liquid between a pair of substrates; and applying heat and pressure to the graphene oxide dispersion liquid between the substrates to perform a hydrothermal reaction to concurrently thermally reduce the graphene oxide and bind graphenes, wherein the graphene oxide dispersion liquid has a concentration of about 0.1 mg/ml to about 200 mg/ml, wherein the applying heat and pressure comprises positioning the substrates, between which the graphene oxide dispersion liquid is confined, into an airtight pressure container and applying heat and pressure, wherein a temperature of the applying heat and pressure is in a range of about 140 ° C to about 200 °C, wherein a time of the applying heat and pressure is in a range of about 1 hour to about 24 hours, and wherein a pressure of the applying heat and pressure is in a range of about 5 bar and about 15 bar. Currently amended
The method of claim 3, wherein the graphene oxide comprises graphene oxide plate-shaped flakes. New
The method of claim 3, wherein a thickness of the film is about 1 nm to about 10 pm. New
The method of claim 3, wherein the pair of substrates comprises a borosilicate glass, a soda lime glass, a silicon wafer, and a sapphire wafer. New
4-15. Canceled
Canceled
Layer stacks claimed or described, ordered top of device to substrate.
graphene membrane film for solvent purification
Materials described outside the worked examples.
graphene oxide
graphene membrane film
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
d-spacing between stacked graphene plate-shaped flakes | 1–10 Angstrom | graphene membrane film |
carbon/oxygen weight ratio (C/O ratio) | 3–99.9 wt% C / wt% O |
Table 1
The graphene membrane film 40 for solvent purification, which was
100 according to an embodiment of the present disclosure, and examples of the separation test were shown in [Table 1].
p. 13
Related documents with shared materials, methods, properties, or citations.
distilled water
H₂O
Temperature | 140–200 °C | — |
Duration | 1–24 hours | — |
Pressure | 1.5–3 atm | — |
Pressure | 0.1–5000 mPa | — |
Temperature | ≤ 140 °C | — |
Temperature | ≤ 5 °C | — |
Duration | ≤ 1 hour | — |
Temperature | ≥ 200 °C | — |
Pressure | ≥ 15 bar | — |
Duration | ≥ 24 hours | — |
distilled water
H₂O
Temperature | 140–200 °C | — |
Duration | 1–24 hours | — |
Pressure | 1.5–3 atm | — |
Pressure | 0.1–5000 mPa | — |
Temperature | ≤ 140 °C | — |
Temperature | ≤ 5 °C | — |
Duration | ≤ 1 hour | — |
Temperature | ≥ 200 °C | — |
Pressure | ≥ 15 bar | — |
Duration | ≥ 24 hours | — |
distilled water
H₂O
Temperature | 140–200 °C | — |
Duration | 1–24 hours | — |
Pressure | 1.5–3 atm | — |
Pressure | 0.1–5000 mPa | — |
Temperature | ≤ 140 °C | — |
Temperature | ≤ 5 °C | — |
Duration | ≤ 1 hour | — |
Temperature | ≥ 200 °C | — |
Pressure | ≥ 15 bar | — |
Duration | ≥ 24 hours | — |
distilled water
H₂O
Temperature | 140–200 °C | — |
Duration | 1–24 hours | — |
Pressure | 1.5–3 atm | — |
Pressure | 0.1–5000 mPa | — |
Temperature | ≤ 140 °C | — |
Temperature | ≤ 5 °C | — |
Duration | ≤ 1 hour | — |
Temperature | ≥ 200 °C | — |
Pressure | ≥ 15 bar | — |
Duration | ≥ 24 hours | — |