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公开(公告)号：RO84852B
公开(公告)日：1984-09-30
申请号：RO8101174
申请日：1974-12-30
Applicant: SOLVAY
Inventor： PLESKA JEAN P , MARECHAL MICHEL
Abstract: Inventia se refera la procedeu si un dispozitiv de obtinere a fibrelor scurte, prin supunerea detentiei a unui amestec bifazic, format din polimer topit si solvent, care se gasesc la presiune si temeperatura ridicata, prin injectiea printr-un orificiu astfel încat solventul si polimerul sa se solidifice, scurgerea amestecului bifazic fiind perturbata în momentul în care patrunde în orificiul de detenta, dispozitivul fiind prevazut cu o cama de perturbare cu cel putin un orificiu de alimentare si în partea opusa cu un orificiu de detenta.
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公开(公告)号：AT44553T
公开(公告)日：1989-07-15
申请号：AT86200262
申请日：1986-02-20
Applicant: SOLVAY
Inventor： TYTGAT DANIEL , LEFEVRE PIERRE , MARECHAL MICHEL
IPC: C23F3/06
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公开(公告)号：RO84852A
公开(公告)日：1984-08-17
申请号：RO8101174
申请日：1974-12-30
Applicant: SOLVAY
Inventor： PLESKA JEAN P , MARECHAL MICHEL
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公开(公告)号：FR2476146A1
公开(公告)日：1981-08-21
申请号：FR8003771
申请日：1980-02-20
Applicant: SOLVAY
Inventor： TYTGAT DANIEL , MARECHAL MICHEL
Abstract: A bath for removing a magnetite film from a metal surface comprises an aq. soln. of a mineral acid, alkylpyridinium chloride and an amt. of soluble cyanide complex greater than that required for reaction with all the ferric ions in the film to form an insoluble cpd. Pref. the cyanide complex is present in amt. at least 1.5 (esp. 2-10) times the required amt. The bath is useful for cleaning cast iron or steel installations e.g. carbonation columns in soda and caustic cleaner prodn., sodium bicarbonate crystallisation reactors, boilers, steam generators in nuclear plant and electrolysis cell steel cathodes having worn magnetite coatings. The bath removes magnetite films effectively, even at ambient temp., without attacking the underlying metal and will also remove lime scale and sodium bicarbonate deposits.
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公开(公告)号：DK142654B
公开(公告)日：1980-12-08
申请号：DK635074
申请日：1974-12-06
Applicant: SOLVAY
Inventor： PLESKA JEAN-PIERRE , MARECHAL MICHEL
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Patent Agency Ranking
公开(公告)号：FI57622B
公开(公告)日：1980-05-30
申请号：FI750029
申请日：1975-01-07
Applicant: SOLVAY
Inventor： PLESKA JEAN-PIERRE , MARECHAL MICHEL
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公开(公告)号：NO140934B
公开(公告)日：1979-09-03
申请号：NO750118
申请日：1975-01-15
Applicant: SOLVAY
Inventor： PLESKA JEAN-PIERRE , MARECHAL MICHEL
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公开(公告)号：FR2578271A1
公开(公告)日：1986-09-05
申请号：FR8503263
申请日：1985-03-04
Applicant: SOLVAY
Inventor： TYTGAT DANIEL , LEFEVRE PIERRE , MARECHAL MICHEL
Abstract: The chemical polishing of steel surfaces is carried out by bringing the latter into contact with a bath comprising, in aqueous solution, hydrochloric acid, phosphoric acid, nitric acid and ferricyanide complex ions. The invention is in particular applicable to the polishing of vessels of large dimensions made from stainless steel alloyed with chromium and with nickel.
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公开(公告)号：AU7664074A
公开(公告)日：1976-06-24
申请号：AU7664074
申请日：1974-12-19
Applicant: SOLVAY
Inventor： PLESKA JEAN-PIERRE , MARECHAL MICHEL
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公开(公告)号：PT82125B
公开(公告)日：1988-04-21
申请号：PT8212586
申请日：1986-03-03
Applicant: SOLVAY
Inventor： TYTGAT DANIEL , LEFEVRE PIERRE , MARECHAL MICHEL
Abstract: The chemical polishing of steel surfaces is carried out by bringing the latter into contact with a bath comprising, in aqueous solution, hydrochloric acid, phosphoric acid, nitric acid and ferricyanide complex ions. The invention is in particular applicable to the polishing of vessels of large dimensions made from stainless steel alloyed with chromium and with nickel.
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