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公开(公告)号：DE2617601A1
公开(公告)日：1977-11-03
申请号：DE2617601
申请日：1976-04-22
Applicant: BASF AG
Abstract: At least one network made of inorganic fibres (pref. glass fibres) is embedded in the plate (pref. two methods are symmetrically placed at a depth of one third of the plate thickness from each side). The aperture dia. is 3-50 mm., pref. 3-10 mm.; the fibre dia. is 0.2-2 mm., pref. 0.4-0.6 mm. The lightweight building material has high fire-resistance, and mechanical strength. The cost is relatively low.
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公开(公告)号：DE2530377A1
公开(公告)日：1977-01-27
申请号：DE2530377
申请日：1975-07-08
Applicant: BASF AG
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公开(公告)号：DE2512504A1
公开(公告)日：1976-10-07
申请号：DE2512504
申请日：1975-03-21
Applicant: BASF AG
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公开(公告)号：DE2313921A1
公开(公告)日：1974-10-03
申请号：DE2313921
申请日：1973-03-21
Applicant: BASF AG
Inventor： JUNG JOHANN , LEUTNER BERND DIPL CHEM DR , STURM HELLMUT
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公开(公告)号：DE3044903A1
公开(公告)日：1982-07-08
申请号：DE3044903
申请日：1980-11-28
Applicant: BASF AG
Inventor： LEUTNER BERND DIPL CHEM DR , PURUCKER BERNHARD DIPL CHEM DR , ROTHER EBERHARD DIPL CHEM DR , JUERGENS GEERD FRIEDRICH , WAGNER DIETER ING GRAD
IPC: C05D9/02
Abstract: A multi-trace element fertilizer which contains magnesium as a further nutrient and in which the complex-forming trace elements are present in the form of anionic chelates with one or more N-carboxyalkylaminoacids is prepared by a process wherein the N-carboxyalkylaminoacids are reacted, in the presence of water, with the trace elements or trace element compounds in a molar ratio of N-carboxyalkylaminoacids to trace elements or trace element compounds of not less than 0.8:1, at least 20% by weight of the trace element compounds being oxides, hydroxides and/or carbonates. At the same time, or subsequently, the pH of the solution is brought to 3.5-6 by adding a member selected from the group consisting of magnesium oxide, hydroxide and carbonate. A maximum of 50 equivalent percent of the magnesium compound may however be replaced by a member selected from the group consisting of alkali metal oxides, hydroxides and carbonates and ammonia.
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Patent Agency Ranking
公开(公告)号：DE2907108A1
公开(公告)日：1980-09-04
申请号：DE2907108
申请日：1979-02-23
Applicant: BASF AG
Inventor： LEUTNER BERND DIPL CHEM DR , SCHLIMPER HANS-ULRICH DIPL CHE , ROTH DIETER DIPL ING DR , KREITNER LUDWIG DIPL ING DR , SPAHN HEINRICH DIPL ING DR
Abstract: Storage-stable, pourable and pumpable silicate suspensions are prepared by wet milling of aluminosilicates, after the preparation of the latter, without intermediate drying.
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公开(公告)号：DE2831941A1
公开(公告)日：1980-02-07
申请号：DE2831941
申请日：1978-07-20
Applicant: BASF AG
IPC: C01B17/94
Abstract: The elimination of nitrous acid and/or nitric acid from waste sulphuric acid, partic. that arising from nitration processes, involves treatment of the waste sulphuric acid with monomeric or polymeric cpds. of carbonic, formic, acetic and/or sulphuric acids contg. NH2 gps. (i.e. acid amides), and/or hydroxylamine, and/or treatment with ammonium salts. Treatment is pref. at 30-150 degrees C and 0.5-60 mn. Partic. the cpd. used to treat the waste sulphuric acid is urea or one of its condensn. prods. The cpd. can be added in an excess up to 10% above the stoichiometric amt. required.
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公开(公告)号：DE2655145A1
公开(公告)日：1978-06-08
申请号：DE2655145
申请日：1976-12-06
Applicant: BASF AG
Inventor： LEUTNER BERND DIPL CHEM DR
Abstract: A process for welding membranes of fluorinated polymers which contain groups with exchangeable H-ions. To carry out the process, the polymer in at least one of the membranes to be welded together must be in the H-form.
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公开(公告)号：DE2646825A1
公开(公告)日：1978-04-20
申请号：DE2646825
申请日：1976-10-16
Applicant: BASF AG
Inventor： LEUTNER BERND DIPL CHEM DR , CSIZI GOTTHARD DIPL CHEM DR , LUKAS SIEGMAR DIPL CHEM DR , SCHREINER SIEGFRIED DIPL CHEM , VOELKL ERFRIED DIPL CHEM DR
Abstract: Concentrated dithionite solutions are produced by cathodic reduction of an aqueous solution, containing sulfite and/or bisulfite, which is circulated by pumping. The cathode and anode chambers are separated from one another by a permselective cation exchanger membrane. The catholyte must be circulated at least 10 times per hour and the selective catholyte volume outside the cell, defined as a = Vtotal -VC/Vtotal, SHOULD BE LESS THAN 0.9.
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