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公开(公告)号:US10392746B2
公开(公告)日:2019-08-27
申请号:US15326543
申请日:2015-07-10
Applicant: Kemira Oyj
Inventor: Clayton Campbell , James Atkinson , Arkadiusz Zaniewski , Marko Kolari , Jaakko Ekman
Abstract: The present invention provides a method for preventing or decreasing scale formation on process surfaces in manufacturing process of paper, board or the like, in which method performic acid is used as an antiscaling agent.
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公开(公告)号:US20190145052A1
公开(公告)日:2019-05-16
申请号:US16039912
申请日:2018-07-19
Applicant: KEMIRA OYJ
Inventor: Marko Kolari , Jaakko Ekman , Satu Ikävalko
Abstract: The invention relates to biocidal systems comprising zinc ions and an oxidizing or non-oxidizing biocide, their use, and methods for preventing or decreasing starch degradation in starch-containing process waters from pulp, paper or board production processes.
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公开(公告)号:US09617170B2
公开(公告)日:2017-04-11
申请号:US14516174
申请日:2014-10-16
Applicant: Kemira Oyj
Inventor: Tatjana Karpova , Esa Melin , Antti Vuori , Ulrik Ojstedt , Robin Gramstad , Kaj Jansson , Marko Kolari
IPC: C02F1/32 , C02F1/72 , C02F101/30 , C02F101/36 , C02F101/32 , C02F101/34 , C02F101/38
CPC classification number: C02F1/32 , C02F1/72 , C02F1/722 , C02F2101/30 , C02F2101/305 , C02F2101/306 , C02F2101/32 , C02F2101/34 , C02F2101/36 , C02F2101/38 , C02F2101/40 , C02F2303/04 , C02F2305/02
Abstract: The present invention relates to a process for reduction of the presence of microorganisms and/or decomposition of organic micropollutants in water using an energy source and an additive characterized in that the energy source is UV radiation and the additive comprises performic acid.
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公开(公告)号:US20150041092A1
公开(公告)日:2015-02-12
申请号:US14380323
申请日:2013-02-22
Applicant: KEMIRA OYJ
Inventor: Matti Hietaniemi , Kimmo Strengell , Asko Karppi , Marko Kolari , Jaakko Ekman
CPC classification number: D21H17/66 , D21H11/14 , D21H17/28 , D21H17/37 , D21H17/55 , D21H17/63 , D21H27/002
Abstract: The invention relates to a method for making of paper, tissue, board or the like by using recycled fibre material as a raw material. The method comprises following steps: pulping recycled paper, board or the like in a pulper and obtaining a pulp flow comprising (i) an aqueous phase and (ii) at least recycled fibres and starch having low molecular weight, which are dispersed in the aqueous phase; adding a coagulant agent to the pulp flow or to an aqueous process flow comprising starch having low molecular weight; allowing the coagulant agent to interact with the starch having low molecular weight and optionally forming aggregates; and adding at least one flocculating agent, after the addition of the coagulant agent, to any flow, which comprises interacted coagulant agent, and forming a treated flow with starch comprising agglomerate(s); retaining at least part of the said aggregates and/or the said agglomerates to the fibres or to a web, which is formed.
Abstract translation: 本发明涉及通过使用再生纤维材料作为原料来制造纸,纸板,纸板等的方法。 该方法包括以下步骤:在碎浆机中制浆再循环的纸,板等,并获得纸浆流,其包含(i)水相和(ii)至少回收的纤维和低分子量的淀粉,其分散在水性 相; 向纸浆流中加入凝结剂或包含低分子量淀粉的含水工艺流程; 使凝结剂与低分子量的淀粉相互作用并任选地形成聚集体; 在加入凝结剂之后,将至少一种絮凝剂加入到包含相互作用的凝结剂的任何流动中,并用包含附聚物的淀粉形成经处理的流体; 将所述聚集体和/或所述附聚物的至少一部分保留在所形成的纤维或纤维网上。
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公开(公告)号:US20150034566A1
公开(公告)日:2015-02-05
申请号:US14516174
申请日:2014-10-16
Applicant: Kemira Oyj
Inventor: Tatjana Karpova , Esa Melin , Antti Vuori , Ulrik Ojstedt , Robin Gramstad , Kaj Jansson , Marko Kolari
CPC classification number: C02F1/32 , C02F1/72 , C02F1/722 , C02F2101/30 , C02F2101/305 , C02F2101/306 , C02F2101/32 , C02F2101/34 , C02F2101/36 , C02F2101/38 , C02F2101/40 , C02F2303/04 , C02F2305/02
Abstract: The present invention relates to a process for reduction of the presence of microorganisms and/or decomposition of organic micropollutants in water using an energy source and an additive characterised in that the energy source is UV radiation and the additive comprises performic acid.
Abstract translation: 本发明涉及使用能量源和添加剂减少微生物的存在和/或水分中的有机微污染物分解的方法,其特征在于能量源是紫外线辐射,并且添加剂包括甲酸。
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