5.
    发明专利
    未知

    公开(公告)号:DE59100367D1

    公开(公告)日:1993-10-21

    申请号:DE59100367

    申请日:1991-01-26

    Applicant: BASF AG

    Abstract: Process for the utilisation of soot, arising in the production of synthesis gas in the form of soot-containing waste water, characterised in that, in a sewage sludge treatment plant, the soot-containing waste water a) is mixed with a clarified sludge, to which are added organic flocculating agents as dewatering aids and to which, if required, are added still further amounts of finely particulate coals and/or ashes, b) this pretreated sludge mixture is subjected to filtration c) the filter cake obtained is incinerated and d) the ash is deposited in a supervised landfill.

    6.
    发明专利
    未知

    公开(公告)号:DE4003242A1

    公开(公告)日:1991-08-08

    申请号:DE4003242

    申请日:1990-02-03

    Applicant: BASF AG

    Abstract: Process for the utilisation of soot, arising in the production of synthesis gas in the form of soot-containing waste water, characterised in that, in a sewage sludge treatment plant, the soot-containing waste water a) is mixed with a clarified sludge, to which are added organic flocculating agents as dewatering aids and to which, if required, are added still further amounts of finely particulate coals and/or ashes, b) this pretreated sludge mixture is subjected to filtration c) the filter cake obtained is incinerated and d) the ash is deposited in a supervised landfill.

    7.
    发明专利
    未知

    公开(公告)号:DE3528598A1

    公开(公告)日:1987-02-19

    申请号:DE3528598

    申请日:1985-08-09

    Applicant: BASF AG

    Abstract: Wastewaters which contain carbon black and ash and originate from high temperature processes and in which the carbon black is present in a very finely divided state and partially in a colloidal state are treated and disposed of by a process in which the wastewater is treated with calcium carbonate or calcium hydroxide and an organic flocculant and subjected to a two-stage filtration and the resulting filter cake containing carbon black and ash is subjected to an aftertreatment with an aqueous iron salt solution.

    Metallizing plastics surfaces
    8.
    发明专利

    公开(公告)号:GB1149033A

    公开(公告)日:1969-04-16

    申请号:GB3186666

    申请日:1966-07-15

    Applicant: BASF AG

    Abstract: 1,149,033. Coating with metals. BADISCHE ANILIN - & SODA-FABRIK A. G. No. 31866/66. Headings C7B and C7F. In an electroless process for coating a plastics sheet with copper or silver in which the plastics surface is first coated with iron powder in a binder, the binder contains at least 20% by weight of a polyisocyanate. The binder may also include vinyl copolymers, polyvinyl chloride, acetal, formal or butyral or soluble polyamide. The coating may be applied through a stencil, and the powdered iron coating may be annealed at a temperature up to 60 ‹C. prior to deposition. A bath for depositing copper may comprise (g./l.) 150 copper sulphate, 40 triethanolamine, and 27 sulphuric acid. A silver layer may be deposited on the copper using a bath comprising 1À5 silver nitrate, 3 E.D.T.A., 3 sodium thiosulphate, and 2 tartaric acid. The copper surface may be electro-plated with a further layer of copper, using the same bath as for the electroless-plating, and then with Cr, Ni, Co or Rh, and the copper or silver surfaces may be electro-plated with Fe, Ni or Co or mixtures thereof.

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