EP4739418A2 - Deoxygenierungsverfahren in einem durchgang zur herstellung von polyacrylamid - Google Patents

Deoxygenierungsverfahren in einem durchgang zur herstellung von polyacrylamid

Info

Publication number
EP4739418A2
EP4739418A2 EP24840625.8A EP24840625A EP4739418A2 EP 4739418 A2 EP4739418 A2 EP 4739418A2 EP 24840625 A EP24840625 A EP 24840625A EP 4739418 A2 EP4739418 A2 EP 4739418A2
Authority
EP
European Patent Office
Prior art keywords
monomer composition
monomer
gas
degassing
liquid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP24840625.8A
Other languages
English (en)
French (fr)
Inventor
Claudio CARLETTI
Marshall Bond
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kemira Oyj
Original Assignee
Kemira Oyj
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kemira Oyj filed Critical Kemira Oyj
Publication of EP4739418A2 publication Critical patent/EP4739418A2/de
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D19/00—Degasification of liquids
    • B01D19/0036—Flash degasification

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Degasification And Air Bubble Elimination (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Polymerisation Methods In General (AREA)
EP24840625.8A 2023-07-13 2024-07-12 Deoxygenierungsverfahren in einem durchgang zur herstellung von polyacrylamid Pending EP4739418A2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US202363513517P 2023-07-13 2023-07-13
FI20236045 2023-09-21
PCT/US2024/037774 WO2025015262A2 (en) 2023-07-13 2024-07-12 One-pass deoxygenation method for polyacrylamide production

Publications (1)

Publication Number Publication Date
EP4739418A2 true EP4739418A2 (de) 2026-05-13

Family

ID=94216504

Family Applications (1)

Application Number Title Priority Date Filing Date
EP24840625.8A Pending EP4739418A2 (de) 2023-07-13 2024-07-12 Deoxygenierungsverfahren in einem durchgang zur herstellung von polyacrylamid

Country Status (3)

Country Link
EP (1) EP4739418A2 (de)
CN (1) CN121646497A (de)
WO (1) WO2025015262A2 (de)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0646400B1 (de) * 1993-04-14 2001-07-18 Nippon Sanso Corporation Vorrichtung zur herabsetzung vom gelöstem sauerstoff
DE102004017886B3 (de) * 2004-04-13 2005-07-21 Audi Ag Verfahren und Vorrichtung zur Lambdaregelung einer Brennkraftmaschine mit Abgaskatalysator
US20070123624A1 (en) * 2005-11-30 2007-05-31 Otten Jay G Method of drying an absorbent polymer with a surfactant
KR101895624B1 (ko) * 2009-12-24 2018-09-05 가부시키가이샤 닛폰 쇼쿠바이 폴리아크릴산계 흡수성 수지분말 및 그 제조방법
WO2013092420A1 (en) * 2011-12-21 2013-06-27 Tetra Laval Holdings & Finance S.A. Deaerator and method for deaeration
WO2019081004A1 (en) * 2017-10-25 2019-05-02 Basf Se PROCESS FOR PRODUCING AQUEOUS POLYACRYLAMIDE SOLUTIONS

Also Published As

Publication number Publication date
WO2025015262A2 (en) 2025-01-16
CN121646497A (zh) 2026-03-10
WO2025015262A3 (en) 2025-04-17

Similar Documents

Publication Publication Date Title
US10047274B2 (en) Apparatus and method for inverting polymer latices
EP3604351A1 (de) Verfahren zur behandlung eines teils einer unterirdischen formation mit verbesserter wasser-in-öl-emulsion
CA2864159A1 (en) Rapidly inverting water-in-oil polymer emulsions
AU654718B2 (en) A method of hardening water and apparatus for use thereof
CN105143276A (zh) 制备基于c3-c8单烯属不饱和单-或二羧酸或其酸酐和盐的高度支化聚合物的连续方法
US5388905A (en) Polymer mixing/activation system
WO2025015262A2 (en) One-pass deoxygenation method for polyacrylamide production
JP7250270B2 (ja) 廃水の処理方法
EP0163108B1 (de) Hydrophobierte Polymerampholyte für die Lackkoagulation
JP7424876B2 (ja) 含水バラ物の処理方法、及び凝集剤添加装置
JP2574736B2 (ja) 気液加圧混合装置とこれを用いた廃液等の処理装置
US20220169545A1 (en) Methods and compositions for treating produced water
CA1200458A (en) Apparatus and method for inverting a polymer emulsion
US12351481B2 (en) Systems and processes for injecting gas-infused additives
KR100759201B1 (ko) 계면활성제의 특성과 이송펌프의 압력분사를 이용하여 기포의 크기를 조절할 수 있는 계면활성제 미세기포 발생장치와 방법
Chen-Jolly et al. Supercritical continuous precipitation polymerization of acrylic acid in a droplet-based millifluidic device
EP0473356B1 (de) System zum Mischen und Aktivieren von Polymeren
CN1709561B (zh) 油包水型乳液及其稀释液的制造方法
Albarazanje Study the performance of dissolved air flotation as industrial wastewater treatment method
AU2021237559B2 (en) Continuous inverse emulsion polymerization process for uniform polymer size distribution
JP2951825B2 (ja) 高分子電解質水溶液の調製方法および装置
CN214681373U (zh) 一种超微气泡和超声波相结合的药剂溶解装置
JP3201567B2 (ja) 加圧浮上処理方法
JPH05138180A (ja) 水道水の処理方法
Klein et al. Use of a multiple orifice spray reactor to accelerate ferrous iron oxidation in acidic mine water

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20260204

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR