Detection method for determining content of chlorine ions in marine sand
US11940431B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 17, 2020 |
| Grant date | Mar 26, 2024 |
| Priority date | — |
| Expiry date | Jul 17, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2001/4088
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A detection method for determining chloride ions content in sea sand includes the steps of drying sea sand to a constant weight, adding the dried sea sand to boiling deionized water, fully stirring, and standing and filtering the deionized water to obtain washed sea sand and a washed filtrate. The washed sea sand is then ground into a powder and added into deionized water and fully stirred, the deionized water then filtered to obtain a powder filtrate. Half of the washed filtrate and half of the powder filtrate is then mixed and stirred to prepare a mixed filtrate. The chloride ions content in each of the washed filtrate, the powder filtrate, and the mixed filtrate is then measured by using a silver nitrate titration method. The detection results are then analyzed and corrected to obtain the chloride ions content in the sea sand.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.