公开(公告)号：CA1130569A

公开(公告)日：1982-08-31

申请号：CA326821

申请日：1979-05-02

Applicant: BASF AG

Inventor： BOEHM GEORG ,  HILLENBRAND ENGELBERT

IPC: C21C5/30 ,  C21C5/32 ,  C21C5/34 ,  C21C7/072 ,  C21C1/00 ,  C21C7/00

Abstract: O.Z. 0050/033183 A process for treating pig iron melts and steel melts or alloys in a converter, crucible or other vessel, wherein the entire refining and treatment process is carried out in a vessel with carbon dioxide, continuously and up to the finishing of the steel. Liquid carbon dioxide under a pressure of from 4.0 to 20.0 bar is used for the treatment. From about 50 to 300 kg of CO2/tonne of steel are required for the refining of the pig iron melt.

公开(公告)号：FR1372107A

公开(公告)日：1964-09-11

申请号：FR948210

申请日：1963-09-20

Applicant: BASF AG

Inventor： DIEBOLD ADOLF ,  BOEHM GEORG ,  KUEHNEL FRANZ

IPC: C25D3/56 ,  G11B5/64 ,  G11B5/858 ,  H01F10/10

公开(公告)号：FR1423539A

公开(公告)日：1966-01-03

申请号：FR4512

申请日：1965-02-05

Applicant: BASF AG

Inventor： BOEHM GEORG ,  CLASS IMMANUEL

IPC: B05B7/22 ,  B05D1/10 ,  B05D3/02 ,  C23C4/04

公开(公告)号：GB997898A

公开(公告)日：1965-07-14

申请号：GB3668763

申请日：1963-09-18

Applicant: BASF AG

Inventor： DEIBOLD ADOLF ,  BOEHM GEORG ,  KUEHNEL FRANZ

IPC: C25D3/56 ,  G11B5/64 ,  G11B5/858 ,  H01F10/10

Abstract: Magnetic tape consists of a plastic tape substrate first rendered conductive by applying a conductive layer to the substrate by normal methods, and second electroplating a magnetic material thereon, preferably Ni/Co alloy, e.g. from an electrolyte of their complex compounds, e.g. tartrate, or nitrilo-acetate, and applied at low power, e.g. 0.01-20.0 A.S.D. The conductive layer may be nickel, graphite, bronze, copper, silver or aluminium in powder form, and applied by vapour deposition, suspended in a binder or emulsion, or blown on to the tape coated with adhesives. Binders specified include polyvinyl compounds, poly-acrylates, or other esters. The Ni/Co deposition is improved by adding salts of alkalis or alkaline earth metals, and the magnetic properties are improved by including small amounts of metals of Group Va, VI, or VII. An apparatus is shown in which the tape bearing a conductive layer is cleaned and etched before plating in a bath with the usual rollers. In examples, the plating baths are (1) nickel and cobalt citrates and lithium chloride, (2) nickel citrate and chloride, and cobalt sulphamate, (3) cobalt tetra-acetate, cobalt chloride, nickel citrate, manganous sulphate, and ethylene diamine. Power applied is 2-4 volts at 0.5-1.0 A.S.D. A magnetic field may be applied during electro-deposition.