公开(公告)号：SE7512708A

公开(公告)日：1976-05-14

申请号：SE7512708

申请日：1975-11-21

Applicant: HOECHST AG

Inventor： BAUER A ,  WEIDEN H ,  BOUMAN I A J M ,  BARTELS L T ,  HOEFFNAGEL J W ,  VAN HOUT J B ,  MEVISSEN H M S

IPC: C08F6/00 ,  C02F1/52 ,  C02F9/00 ,  C08J11/06 ,  C08J11/00

CPC classification number: C08J11/06 ,  C02F1/52 ,  C02F2103/38 ,  Y02W30/701

公开(公告)号：BR7900799A

公开(公告)日：1979-09-04

申请号：BR7900799

申请日：1979-02-09

Applicant: HOECHST AG

Inventor： BAUER A ,  LEISTNER G ,  SELL G ,  MUELLER G

IPC: B01F3/04 ,  C02F3/12 ,  C02F3/20 ,  C02F3/22 ,  C02C1/00

Abstract: In a process for the biological purification of waste water by mixing a sludge-water mixture and air in an activation chamber charged continuously with waste water, activated sludge and air and from which an equivalent quantity of sludge-water mixture is discharged, the sludge-water mixture is guided along with the air in the activation chamber so as to define at least one loop shape motion. In a further embodiment of the process that part of the sludge-water mixture that does not continue its loop shape course is submitted to a biological after-reaction, preferably occurring in the activation chamber, while avoiding backmixing with the mixture in loop shape motion.

公开(公告)号：BR7300222D0

公开(公告)日：1973-09-20

申请号：BR22273

申请日：1973-01-11

Applicant: HOECHST AG

Inventor： BAUER A

IPC: C09B62/006 ,  C09B62/008 ,  C09B62/00 ,  D06P1/38

Abstract: 1406913 Water-soluble reactive monoazo dyes HOECHST AG 11 Jan 1973 [12 Jan 1972] 1559/73 Heading C4P Water-soluble monoazo dyes have the Formula (I) in which, within the dashed line, the structure may be in the enolized form or the hydrazone form, and where A, A 1 , B and B 1 each represent a benzene or naphthalene radical which may carry further substituents, W is -CN or -CONH 2 , and Z 1 and Z 2 each represents a direct bond or a bivalent bridge member, or a C 1 -C 4 lower alkylene group, and which may be identical or different, X and X 1 each represents a reactive group which may be identical or different, m and m 1 each represents 0, 1, 2 or 3, the sum of m + m 1 being at least 1, n and n 1 each represents 0, 1 or 2 and n + n 1 is at least 1 and at most 3, v and v 1 each represents 0 or 1, R represents a hydrogen atom or a lower alkyl or a lower alkyl group substituted by -OH, -COOH, -COO (lower alkyl) or -CN, the lower alkyl group containing 1-4 carbon atoms, and both R's may be identical or different, and n 2 and n 3 each represents the number 1 or 2. The compounds are made by diazotization and coupling. The dyes may be used to produce greenish yellow shades by dyeing or printing materials containing hydroxyl groups or nitrogen, e.g. on wool, silk, leather, polyamide, or polyurethane fibres or on natural or regenerated cellulose.