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公开(公告)号：US20140238523A1
公开(公告)日：2014-08-28
申请号：US14188895
申请日：2014-02-25
Applicant: BASF SE
Inventor： Jürgen Wortmann , Michael Lutz , Martin Gärtner , Kerstin Schierle-Arndt , Stephan Maurer , Michael Ladenberger , Karolin Geyer , Florian Garlichs
IPC: F16L53/00
CPC classification number: F16L53/007 , F16L53/37 , F16L53/38
Abstract: The invention relates to an apparatus for heating a pipeline system, comprising at least two pipelines (1), along which in each case one electrical resistance heating element extends, wherein a potential close to the ground potential is set at each electrical resistance heating element at at least one end (3, 5), and the electrical resistance heating element is connected to a terminal of a DC source or to in each case one phase (7) of an n-phase AC source (9) at a position remote from this end (3, 5), where, when using an n-phase AC source (9), n is an integer equal to or greater than 2.
Abstract translation: 本发明涉及一种用于加热管道系统的装置，其包括至少两条管线（1），在每条情况下，一条电阻加热元件沿着该管线延伸，其中接近地电位的电位被设置在每个电阻加热元件处 至少一端（3,5），并且所述电阻加热元件连接到直流源的端子，或者在每种情况下连接到位于远离所述直流电源的位置处的n相AC源（9）的一相（7）。 该端（3,5），其中，当使用n相AC源（9）时，n是等于或大于2的整数。
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公开(公告)号：US10850982B2
公开(公告)日：2020-12-01
申请号：US15569792
申请日：2016-04-19
Applicant: BASF SE
Inventor： Eberhard Beckmann , Sabine Weiguny , Martin Gärtner , Katharina Federsel
Abstract: The present invention relates to a method for reducing or preventing the decomposition of a composition Z comprising Z1 a salt of dithionous acid in an amount ranging from 50 to 100 wt % and optionally Z2 an additive selected from the group consisting of alkali metal carbonate, alkaline earth metal carbonate, alkali metal or alkaline earth metal tripolyphosphate (Na5P3O10), alkali metal or alkaline earth metal sulfite, disulfite or sulfate, dextrose and complexing agents in a combined amount ranging from 0.0001 to 40 wt %, which comprises contacting the components Z1 and optionally Z2 in the solid and/or dry or solvent-dissolved or -suspended state with at least one of the following compounds V in the solid and/or dry or solvent-dissolved or -suspended state, wherein the compounds V are selected from the group consisting of: (a) oxides of the alkali metals lithium, sodium, potassium, rubidium, cesium, or of magnesium, (b) sodium tetrahydroborate (NaBH4), (c) anhydrous copper(II) sulfate (Cu(SO4)), phosphorus pentoxide and (d) basic amino acids arginine, lysine, histidine, wherein the solvent for Z1, optionally Z2 and V is practically water-free.
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公开(公告)号：US09347596B2
公开(公告)日：2016-05-24
申请号：US14188895
申请日：2014-02-25
Applicant: BASF SE
Inventor： Jürgen Wortmann , Michael Lutz , Martin Gärtner , Kerstin Schierle-Arndt , Stephan Maurer , Michael Ladenberger , Karolin Geyer , Florian Garlichs
CPC classification number: F16L53/007 , F16L53/37 , F16L53/38
Abstract: The invention relates to an apparatus for heating a pipeline system, comprising at least two pipelines (1), along which in each case one electrical resistance heating element extends, wherein a potential close to the ground potential is set at each electrical resistance heating element at at least one end (3, 5), and the electrical resistance heating element is connected to a terminal of a DC source or to in each case one phase (7) of an n-phase AC source (9) at a position remote from this end (3, 5), where, when using an n-phase AC source (9), n is an integer equal to or greater than 2.
Abstract translation: 本发明涉及一种用于加热管道系统的装置，其包括至少两条管线（1），在每条情况下，一条电阻加热元件沿着该管线延伸，其中接近地电位的电位被设置在每个电阻加热元件处 至少一端（3,5），并且所述电阻加热元件连接到直流源的端子，或者在每种情况下连接到位于远离所述直流电源的位置处的n相AC源（9）的一相（7）。 该端（3,5），其中，当使用n相AC源（9）时，n是等于或大于2的整数。
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