Process to produce kno3 of at least 98% from polyhalite comprising contacting the polyhalite with hno3 adding a base to precipitate the sulfate, precipitate the mg, concentrate the solution, precipitate the nacl, separate the kno3 and recycle to the reaction vessel part of the solution remains.
Chile Patent
Stats

Importance

CL Family Size
|
Non-US Coverage
|
Abstract
THE INVENTION REFERS TO A PROCESS TO PRODUCE KNO3 OF AT LEAST 98% PURITY, FROM POLYHALITE, WHICH INCLUDES CONTACTING THE POLYHALITE WITH A SUBSTANCE CONTAINING HNO3, ADDING A BASE FOR THE SOLUTION -THOLD IN THE SULFATE PRESENT FOR PRECIPITATE SUCH ... SOLUTION, PRECIPITATE THE MG AS MG (OH) 2, BY ADDING AT LEAST ONE BASIC COMPOUND TO THE REMAINING SOLUTION, CONCENTRATE THE OBTAINED SOLUTION, PRECIPITATE THE NACI DERIVED FROM POLYHALITE, SEPARATE SAID PRECIPITATED NACL FROM THE FLOW , SEPARATE AS A SOLID KNO3 AT LEAST PART OF K + AND NO3- CONTAINED IN THE SOLUTION, AND RECYCLE PART OF THE REMAINING SOLUTION TO THE REACTION VESSEL.

First Claim
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Country Designations

Patent Owner(s)
Patent Owner | Address |
---|---|
IMI TAMI INSTITUTE RES AND DEVELOPMENT LTD | IL |
International Classification(s)

- [Classification Symbol]
- [Patents Count]
Inventor(s)
Inventor Name | Address |
---|---|
FRIM RON | HAIFA |
GINZBERG EYAL | ZIKHRON-YAAKOV |
MOZES AKIVA | 75437 RISHON LEZION |
BARNEA EYAL | 1/1 HASHITA STREET 3680001 NESHER 3680001 |
KESELMAN HUGO | KARMIEL |
FRIEDMAN GIDEON | 32985 HAIFA |
LANGEVELD CORNELIS PETRUS BONAN MICHAEL | IL |
Cited Art Landscape
- No Cited Art to Display

Full Text

Legal Events

Matter Detail

Renewals Detail

Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:

Add to additional portfolios:

Note
The template below is formatted to ensure compatibility with our system.
Provide tags with | separated like (tags1|tags2).
Maximum length is 128 characters for Customer Application No
Mandatory Fields * - 'MatterType','AppType','Country','Title','SerialNo'.
Acceptable Date Format - 'MM/DD/YYYY'.
Acceptable Filing/App Types -
- Continuation/Divisional
- Original
- Paris Convention
- PCT National
- With Priority
- EP Validation
- Provisional Conversion
- Reissue
- Provisional
- Foreign Extension
Acceptable Status -
- Pending
- Abandoned
- Unfiled
- Expired
- Granted
Acceptable Matter Types -
- Patent
- Utility Model
- Supplemental Protection Certificate
- Design
- Inventor Certificate
- Plant
- Statutory Invention Reg
Advertisement
Advertisement
Advertisement

Recipient Email Address

Recipient Email Address

Comment
Recipient Email Address

Success
E-mail has been sent successfully.
Failure
Some error occured while sending email. Please check e-mail and try again!
Important Notes on Latency of Status data
This Status indicator is an estimation based on the relevant document kind code. As such, it status will only indicate "Published" or "Granted". Expired, lapsed or abandoned statuses are not available in this release. Please refer to the legal status information for more information.
This status should not be taken as legal conclusion. No representations are made as to the accuracy of the status provided. Please consult a legal professional before relying on this status information.
Important Note on Priority Date data
This priority date is an estimated earliest priority date and is purely an estimation. This date should not be taken as legal conclusion. No representations are made as to the accuracy of the date listed. Please consult a legal professional before relying on this date.
Only for Granted EP cases
EP validations represent the countries in which the EP patent may be in force. Data is based on reporting from the various EP contracting states. The reporting consistency can vary across the countries.