Method for preparing particles of alkali metal bicarbonate
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United States of America Patent
Stats
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Jan 23, 2018
Grant Date -
May 26, 2016
app pub date -
Jun 26, 2014
filing date -
Jun 26, 2013
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method for preparing particles of alkali metal bicarbonate by crystallization from a solution of alkali metal carbonate and/or bicarbonate in the presence of an additive in the solution, selected from the sulfates, sulfonates, the polysulfonates, the amines, the hydroxysultaines, the polycarboxylates, the polysaccharides, the polyethers and the ether-phenols, alkali metal hexametaphosphate, the phosphates, the sulfosuccinates, the amidosulfonates, the aminosulfonates, preferably selected from the polycarboxylates having a mean molecular weight lower than 8000 g/mol, and such that the additive is present in the solution at a concentration of at least 1 ppm and preferably of at most 200 ppm.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
SOLVAY SA | 1120 BRUXELLES |
International Classification(s)

- 2014 Application Filing Year
- C01D Class
- 100 Applications Filed
- 77 Patents Issued To-Date
- 77 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Savary, David Jean Lucien | Dombasle-sur-Meurthe, FR | 13 | 8 |
# of filed Patents : 13 Total Citations : 8 |
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Patent Citation Ranking
- 0 Citation Count
- C01D Class
- 0 % this patent is cited more than
- 7 Age
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7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jul 23, 2025 |
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Legal Events
Date | Code | Event | Description |
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Dec 07, 2020 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 4 |
Jan 23, 2018 | I | Issuance | |
Jan 03, 2018 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
May 26, 2016 | P | Published | |
Aug 25, 2014 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SAVARY, DAVID JEAN LUCIEN;REEL/FRAME:037344/0421 Owner name: SOLVAY SA, BELGIUM Effective Date: Aug 25, 2014 |
Jun 26, 2014 | F | Filing | |
Jun 26, 2013 | PD | Priority Date |

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