公开(公告)号：FI875506A

公开(公告)日：1988-06-16

申请号：FI875506

申请日：1987-12-15

Applicant: SOLVAY

Inventor： TYTGAT DANIEL ,  REIGNIER MARIANNE ,  DUJARDIN FRANCOIS

IPC: C23G1/08 ,  C23F1/28 ,  C23F3/00 ,  C23F3/06 ,  C23F

Abstract: Baths comprising, in aqueous solution, a mixture of hydrochloric acid, phosphoric acid, nitric acid and sulphosalicylic acid and at least one abietic compound.

公开(公告)号：DK655087A

公开(公告)日：1988-06-16

申请号：DK655087

申请日：1987-12-14

Applicant: SOLVAY

Inventor： TYTGAT DANIEL ,  REIGNIER MARIANNE ,  DUJARDIN FRANCOIS

IPC: C23G1/08 ,  C23F1/28 ,  C23F3/00 ,  C23F3/06 ,  C23G1/06

Abstract: Baths comprising, in aqueous solution, a mixture of hydrochloric acid, phosphoric acid, nitric acid and sulphosalicylic acid and at least one abietic compound.

公开(公告)号：DE3561072D1

公开(公告)日：1988-01-07

申请号：DE3561072

申请日：1985-04-04

Applicant: SOLVAY

Inventor： TYTGAT DANIEL ,  LEFEVRE PIERRE ,  BALTHASART DOMINIQUE

IPC: C23F15/00 ,  C23G1/02 ,  C25F1/06

Abstract: Process for inhibiting the corrosion of a mass of metal (2) in contact with an acid bath (3) containing ferric ions, according to which at least a part of the bath (3) is circulated through a stack of felts (10) made of carbon or graphite, alternating with perforated plates made of iron or an iron alloy (9). The process applies to the pickling of metallurgical products made of steel in hydrochloric acid baths.

公开(公告)号：DK655087D0

公开(公告)日：1987-12-14

申请号：DK655087

申请日：1987-12-14

Applicant: SOLVAY

Inventor： TYTGAT DANIEL ,  REIGNIER MARIANNE ,  DUJARDIN FRANCOIS

IPC: C23G1/08 ,  C23F1/28 ,  C23F3/00 ,  C23F3/06 ,  C23G1/06

Abstract: Baths comprising, in aqueous solution, a mixture of hydrochloric acid, phosphoric acid, nitric acid and sulphosalicylic acid and at least one abietic compound.

公开(公告)号：FR2578271A1

公开(公告)日：1986-09-05

申请号：FR8503263

申请日：1985-03-04

Applicant: SOLVAY

Inventor： TYTGAT DANIEL ,  LEFEVRE PIERRE ,  MARECHAL MICHEL

IPC: C23F3/06 ,  C23F1/28

Abstract: The chemical polishing of steel surfaces is carried out by bringing the latter into contact with a bath comprising, in aqueous solution, hydrochloric acid, phosphoric acid, nitric acid and ferricyanide complex ions. The invention is in particular applicable to the polishing of vessels of large dimensions made from stainless steel alloyed with chromium and with nickel.

公开(公告)号：FI862361A0

公开(公告)日：1986-06-03

申请号：FI862361

申请日：1986-06-03

Applicant: SOLVAY

Inventor： TYTGAT DANIEL ,  LEFEVRE PIERRE

IPC: C23F3/00 ,  C23F3/06 ,  C23G

Abstract: Baths for chemical polishing of stainless steel surfaces, comprising, in aqueous solution, a mixture of hydrochloric acid, phosphoric acid and nitric acid, ferricyanide complex ions and an additive capable of decomposing nitrous acid. The baths can be used in particular for chemical polishing of heat exchangers with a very large exchange surface.

公开(公告)号：FI61036C

公开(公告)日：1982-05-10

申请号：FI762308

申请日：1976-08-12

Applicant: SOLVAY

Inventor： TYTGAT DANIEL ,  CLERBOIS LUCIEN ,  NOEL STEPHANE

IPC: C08F14/00 ,  C08F2/00 ,  C08F2/44 ,  C08F14/06 ,  C08F2/16

公开(公告)号：FR2465010A1

公开(公告)日：1981-03-20

申请号：FR7923283

申请日：1979-09-17

Applicant: SOLVAY

Inventor： TYTGAT DANIEL

IPC: C23F11/04 ,  C23G1/04 ,  C23F14/02

Abstract: The invention relates to a process for inhibiting the corrosion of an installation, made of a material chosen from amongst the metals which are less noble than hydrogen, and their alloys, in contact with an acid bath containing an alkylpyridinium chloride. A soluble cyanide complex, which is capable of forming an insoluble compound by reacting with ferric ions in the bath, is added to the bath so as to limit the concentration of the ferric ions in the bath to a maximum of 30 mg/kg. The content of ferric ions in the bath is controlled by means of a potentiometric measurement so as to bring the potential of the bath into the region of a predetermined value. The invention applies in particular to the treatment of baths for cleaning or descaling steel installations.

公开(公告)号：DK170861B1

公开(公告)日：1996-02-12

申请号：DK655087

申请日：1987-12-14

Applicant: SOLVAY

Inventor： TYTGAT DANIEL ,  REIGNIER MARIANNE ,  DUJARDIN FRANCOIS

IPC: C23G1/08 ,  C23F1/28 ,  C23F3/00 ,  C23F3/06 ,  C23G1/06

Abstract: Baths comprising, in aqueous solution, a mixture of hydrochloric acid, phosphoric acid, nitric acid and sulphosalicylic acid and at least one abietic compound.

公开(公告)号：DE69001349D1

公开(公告)日：1993-05-19

申请号：DE69001349

申请日：1990-10-15

Applicant: SOLVAY

Inventor： TYTGAT DANIEL ,  MAGNUS STEFAAN

IPC: C23F1/18 ,  C23F3/06

Abstract: Baths for chemical polishing of copper or copper alloy surfaces, comprising, in aqueous solution, hydrogen peroxide, phosphoric acid and tetraborate ions.