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公开(公告)号：DE59601684D1
公开(公告)日：1999-05-27
申请号：DE59601684
申请日：1996-01-12
Applicant: BASF AG
Inventor： KROENER RUDI DR , LEUTNER BERND DR , SCHLAEFER DIETER DR , STEINER WOLFGANG DR , FRIEDRICH HOLGER DR
IPC: C25B13/00
Abstract: Process for recycling diaphragms comprises crushing and washing with a washing substrate (I) to produce re-usable material.
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公开(公告)号：DE19637160A1
公开(公告)日：1998-03-19
申请号：DE19637160
申请日：1996-09-12
Applicant: BASF AG
Inventor： KROENER RUDI DR
Abstract: A synergistic corrosion inhibitor composition comprises: (a) an uni:idazoline component containing an uni:idazoline compound of formula (I) (where n = 1-5; R1 = up to 30C alk(en)yl; and R2 = H or alkyl) or an acid addition salt; and (b) a nitrogen compound of formula (II) or (III) (where, R4, R5, R6 and R7 = H, alk(en)yl, or aryl, at least one of which is an up to 30 C alk(en)yl; R8 and R9 = H, or alk(en)yl, at least one of which is an up to 30 C alk(en)yl; R10 and R11 = H or alk(en)yl; Alk = alkyl; X = halogen or OH; and m = 1-5) or an acid addition salt.
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公开(公告)号：DE19805487A1
公开(公告)日：1999-08-12
申请号：DE19805487
申请日：1998-02-11
Applicant: BASF AG
Inventor： KAPPES ELISABETH DR , BRODT GREGOR DR , KROENER RUDI DR , WAGNER NORBERT DR
IPC: C07B45/02 , C07D213/20
Abstract: The invention relates to a method for the production of 1-(2-sulphoethyl)-pyridinium betaine, whereby pyridine is reacted with a sulphoethylating reagent from a group comprising carbyl sulphate, ethionic acid or the salt thereof and vinyl sulphonic acid or vinyl sulphonate, and the reaction occurs in an aqueous solution or in pyridine.
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公开(公告)号：DE19520269A1
公开(公告)日：1996-12-05
申请号：DE19520269
申请日：1995-06-02
Applicant: BASF AG
Inventor： KROENER RUDI DR , MARTISCHIUS FRANZ-DIETER DR , BRATSCHKOW STEFAN , OPPENLAENDER KNUT DR , KNAUF WOLFGANG DR , MAHR NORBERT DR , KALIMULIN A A , RIGALOV N A , UMUTBAEV N A , HVALEVA D A
IPC: C09K8/035 , C09K8/54 , C09K15/30 , C23F11/14 , C07C231/02 , C07C233/36 , C07D233/16 , C07D239/06 , C09K7/02 , C09K15/22
Abstract: Corrosion inhibitor contains: (A) 2-98 wt.% of a condensation product of diethylenetriamine or dipropylene triamine with (un)satd. 6-22C fatty acids in mol. ratio of 2-1:1-2.5, which has been partially converted into corresponding ammonium salts; and (B) 0-70 wt.% organic solvent. The novelty is that the inhibitor further contains (C) 2-98 wt.% of a condensation product, as corrosion inhibitor, of an amine mixt. of: (a) 20-70 wt.pts. N-(2-aminoethyl)ethanolamine; (b) 30-80 wt.pts. polyamines of formula: H2N-(CH2)m-NHn-H (where m = 2 or 3; and n = 3-8); and (c) 0-20 wt.pts. further aliphatic amines, with (un)satd. 6-22C fatty acids in mol. ratio of 2-1:1-2. An alternative corrosion inhibitor is also claimed.
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Patent Agency Ranking
公开(公告)号：DE4230399A1
公开(公告)日：1994-03-17
申请号：DE4230399
申请日：1992-09-11
Applicant: BASF AG
Inventor： HABERMANN WOLFGANG , KROENER RUDI DR , MEYER JOACHIM DR , FRITZMANN JOHANN DR , WOLF HANS-JOSEF DR
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公开(公告)号：DE59600938D1
公开(公告)日：1999-01-21
申请号：DE59600938
申请日：1996-05-23
Applicant: BASF AG
Inventor： KROENER RUDI DR , LEUTNER BERND DR , SCHNEIDER HANS-MICHAEL DR , FRIEDRICH HOLGER DR , HECKY KURT , SCHLAEFER DIETER DR , STEINER WOLFGANG DR
Abstract: Regenerating plastic diaphragms comprises mixing a soln. of mineral acid (I) with a corrosion inhibitor (II) and passing the mixt. through the diaphragm for 0.1-84 (pref. 1-72, esp. pref. 2-24) hrs. at 0-100 (pref. 40-80, esp. pref. 50-70) degrees C. Also claimed are plastic diaphragms obtd. by this process. (I) consists at least partly, pref. entirely, of HCl in a concn. of 0.3-20 (pref. 2-10) wt%, pref. contg. NaCl in a concn. up to the satn. pt., pref. up to 250 g/l. Pref. soln. (I) also contains 500-5000 ppm Cu and/or Fe cpds., esp. Cu(II) and/or Fe(III) salts. The mixt. contains 0.005-5 (pref. 0.05-0.5) wt% (II). Component (II) contains alkynol(s), esp. an alkyne-diol, pref. mixed with 1-25 wt% amine, esp. hexamethylenetetramine (HMTA), ethylhexylamine or diethylhexylamine, and/or 0.1-3 wt% surfactant, esp. a quat. ammonium salt.
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公开(公告)号：DE19628893A1
公开(公告)日：1998-01-22
申请号：DE19628893
申请日：1996-07-17
Applicant: BASF AG
Inventor： OPPENLAENDER KNUT DR , OETTER GUENTER DR , KROENER RUDI DR , MAHR NORBERT DR , JATZEK HANS-JUERGEN DR , TAEGER KLAUS DR
IPC: C07D233/61 , C07D521/00 , C09K8/54 , C23F11/14 , C09K7/02 , C09K15/30
Abstract: The invention relates to the use of at least one compound of general formula (I), in which R1, R2 and R3 independently of one another represent a hydrogen atom or an alkyl or alkenyl radical; R4 represents an alkyl or alkenyl radical and n represents 1 to 5; or of an acid addition salt thereof, as an inhibitor of corrosion in the extraction, processing, storage and transportation of crude oil and natural gas, and to a process for the preparation of this compound.
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公开(公告)号：DE19519921A1
公开(公告)日：1996-12-05
申请号：DE19519921
申请日：1995-05-31
Applicant: BASF AG
Inventor： KROENER RUDI DR , LEUTNER BERND DR , SCHNEIDER HANS-MICHAEL DR , FRIEDRICH HOLGER DR , HECKY KURT , SCHLAEFER DIETER DR , STEINER WOLFGANG DR
Abstract: Regenerating plastic diaphragms comprises mixing a soln. of mineral acid (I) with a corrosion inhibitor (II) and passing the mixt. through the diaphragm for 0.1-84 (pref. 1-72, esp. pref. 2-24) hrs. at 0-100 (pref. 40-80, esp. pref. 50-70) degrees C. Also claimed are plastic diaphragms obtd. by this process. (I) consists at least partly, pref. entirely, of HCl in a concn. of 0.3-20 (pref. 2-10) wt%, pref. contg. NaCl in a concn. up to the satn. pt., pref. up to 250 g/l. Pref. soln. (I) also contains 500-5000 ppm Cu and/or Fe cpds., esp. Cu(II) and/or Fe(III) salts. The mixt. contains 0.005-5 (pref. 0.05-0.5) wt% (II). Component (II) contains alkynol(s), esp. an alkyne-diol, pref. mixed with 1-25 wt% amine, esp. hexamethylenetetramine (HMTA), ethylhexylamine or diethylhexylamine, and/or 0.1-3 wt% surfactant, esp. a quat. ammonium salt.
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公开(公告)号：DE19500871A1
公开(公告)日：1996-07-18
申请号：DE19500871
申请日：1995-01-13
Applicant: BASF AG
Inventor： KROENER RUDI DR , LEUTNER BERND DR , SCHLAEFER DIETER DR , STEINER WOLFGANG DR , FRIEDRICH HOLGER DR
Abstract: Process for recycling diaphragms comprises crushing and washing with a washing substrate (I) to produce re-usable material.
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