IT1298142B1 - Hyperpure hydrogen peroxide production using reverse osmosis unit, used for processing semiconductors - Google Patents
Hyperpure hydrogen peroxide production using reverse osmosis unit, used for processing semiconductorsInfo
- Publication number
- IT1298142B1 IT1298142B1 ITMI980072A IT1298142B1 IT 1298142 B1 IT1298142 B1 IT 1298142B1 IT MI980072 A ITMI980072 A IT MI980072A IT 1298142 B1 IT1298142 B1 IT 1298142B1
- Authority
- IT
- Italy
- Prior art keywords
- hydrogen peroxide
- reverse osmosis
- osmosis unit
- peroxide production
- hyperpure
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
Hydrogen peroxide of 60 - 70 % concentration, and not containing stabilizers, from an industrial plant is purified by reverse osmosis within a unit which is part of the plant. Hyperpure hydrogen is obtained by a process whereby the product is fed to the purification unit wherein high purity permeate is separated and recycled to the production plant. The hydrogen peroxide is used without addition of a stabilizing agent.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMI980072 IT1298142B1 (en) | 1998-01-16 | 1998-01-16 | Hyperpure hydrogen peroxide production using reverse osmosis unit, used for processing semiconductors |
EP99100238A EP0930269B1 (en) | 1998-01-16 | 1999-01-08 | Process for the industrial production of high purity hydrogen peroxide |
DE69904090T DE69904090T2 (en) | 1998-01-16 | 1999-01-08 | Process for the industrial production of high-purity hydrogen peroxide |
US09/231,824 US6333018B2 (en) | 1998-01-16 | 1999-01-15 | Process for the industrial production of high purity hydrogen peroxide |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMI980072 IT1298142B1 (en) | 1998-01-16 | 1998-01-16 | Hyperpure hydrogen peroxide production using reverse osmosis unit, used for processing semiconductors |
Publications (2)
Publication Number | Publication Date |
---|---|
ITMI980072A1 ITMI980072A1 (en) | 1999-07-16 |
IT1298142B1 true IT1298142B1 (en) | 1999-12-20 |
Family
ID=11378606
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ITMI980072 IT1298142B1 (en) | 1998-01-16 | 1998-01-16 | Hyperpure hydrogen peroxide production using reverse osmosis unit, used for processing semiconductors |
Country Status (1)
Country | Link |
---|---|
IT (1) | IT1298142B1 (en) |
-
1998
- 1998-01-16 IT ITMI980072 patent/IT1298142B1/en active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
ITMI980072A1 (en) | 1999-07-16 |
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