国家/地区 世界知识产权组织（19）
IPC部 C（19）
IPC大类 C02（19）
IPC小类 C02F（19） B01D（8） B01J（4）
C01B（4） H01M（4） C08F（3）
C08L（3） C25C（3） E21B（2）
IPC C02F001/44（7） B01D069/02（5） C02F001/00（5）
B01D071/02（4） C02F001/461（4） B01D067/00（3）
B01D069/12（3） C02F001/28（3） C02F001/469（3）
C02F003/34（3） C02F101/30（3） H01M004/62（3）
B01D021/00（2） B01D021/26（2） B01D035/02（2）
发明人 JAMISON D E（2） PEARL W C（2） SHUMWAY W W（2）
公开年 2021（14） 2022（4）
申请年 2020（19）
专利权人 HALLIBURTON .（2）

Method for detecting concentration of ion in solution, involves determining concentration of ions in solution from changes in charging current and voltage over time following application of potential across working electrode in solution.

SHAFFER M, CHADWICK N

Waste water treatment agent useful for removing pollutants in wastewater, comprises e.g. modified bentonite, silicon dioxide adsorbent, a flocculating agent, microbial bacteria, amino trimethylene phosphonic acid and polyaspartic acid.

YANG L

Membrane distillation apparatus for use in water treatment, comprises housing comprising hot medium compartment comprising hot medium inlet and hot medium outlet, hot medium inlet configured to receive hot medium stream comprising water, cold medium compartment comprising cold medium inlet and cold.

LAWAL D U, AZEEM M A, BAROUD T N, AL ABDULGADER H, ABDULGADER H A

Preparing a graphene coated sponge comprises filling mineral wool with a solution comprising graphene material, submitting graphene material to heating to have graphene material bonded to mineral wool and cleaning the heated material.

RADJENOVIC J, BAPTISTA PIRES L M, NORRA G, DUINSLAEGER N

Preparing metal-organic frameworks photocatalytic material with high visible light response useful in photocatalysis field by e.g. mixing graphite powder and sodium nitrate in ice-water bath, dropping concentrated sulfuric acid and reacting.

SHANG X

System used for treatment of slop water recovered from wellbore operation, comprises treatment unit comprising inlet, filtration medium comprising particulate pack partially coated with zwitterionic polyelectrolyte, and arranged to separate portions of slop water stream comprising water, and outlet.

JAMISON D E, SHUMWAY W W, PEARL W C

Fluid treatment system for treating fracturing fluid or drilling mud, has first filtration medium having first outlet that is provided on first side of first filtration medium, and second outlet that is provided on second side of first filtration medium to opposite first side.

JAMISON D E, SHUMWAY W W, PEARL W C

Extracting lithium from aqueous lithium source comprises pre-treating aqueous lithium source having e.g. dissolved lithium ions by mixing the source with scale inhibitor and electrochemically extracting lithium ions in electrochemical cell.

ALYOUSEF Y M, ALRASHEED R, AL JILIL S, HIPPAUF F, ABENDROTH T, ALTHUES H, KASKEL S

Apparatus for producing alkaline electrolyte solution, comprises e.g. a filtration process unit for filtering raw water, and deion processing unit provided with strongly basic anion exchange resin tower for generating strong alkaline water.

LEE G B

Nanoporous membrane used in filter, comprises two-dimensional material permeated by pores which are blocked by polymer derived from monomer and comprising population of pores having average pore diameter.

KIDAMBI P R, CHENG P