公开(公告)号：ES2179359T3

公开(公告)日：2003-01-16

申请号：ES97936086

申请日：1997-07-14

Applicant: TEXACO DEVELOPMENT CORP

Inventor： WEBSTER GEORGE HENRY ,  VON KLOCK BYRON

IPC: C23G1/00 ,  B08B3/00 ,  C10J20060101 ,  C23G20060101 ,  C23G1/02 ,  C23G1/08 ,  C23G1/10

Abstract: Fluoride-containing scale can be removed from metal surfaces such as titanium, titanium alloys, nickel alloys, and stainless steel by contacting the metal surfaces with an aqueous salt solution of an inorganic acid, including its hydrates. The cationic portion of the salt can be aluminum, iron and mixtures thereof. The anionic portion of the salt can be a chloride, a nitrate, a sulfate, and mixtures thereof. The contracting occurs in the absence of the addition of an acid, such as hydrochloric, nitric, or sulfuric acid. The presence of the aqueous salt solution with the dissolved fluoride scale does not accelerate or increase the normal rate of metal corrosion that can occur in the absence of the aqueous salt solution or any acidic cleaning agent.

公开(公告)号：CA2260172C

公开(公告)日：2003-01-14

申请号：CA2260172

申请日：1997-07-14

Applicant: TEXACO DEVELOPMENT CORP

Inventor： VON KLOCK BYRON ,  WEBSTER GEORGE HENRY JR

IPC: C23G1/00 ,  B08B3/00 ,  C10J20060101 ,  C23G20060101 ,  C23G1/02 ,  C23G1/08 ,  C23G1/10 ,  C23G1/24

Abstract: Fluoride-containing scale can be removed from metal surfaces such as titaniu m, titanium alloys, nickel alloys, and stainless steel by contacting the metal surfaces with an aqueous salt solution of an inorganic acid, including its hydrates. The cationic portion of the salt can be aluminum, iron and mixture s thereof. The anionic portion of the salt can be a chloride, a nitrate, a sulfate, and mixtures thereof. The contracting occurs in the absence of the addition of an acid, such as hydrochloric, nitric, or sulfuric acid. The presence of the aqueous salt solution with the dissolved fluoride scale does not accelerate or increase the normal rate of metal corrosion that can occur in the absence of the aqueous salt solution or any acidic cleaning agent.

公开(公告)号：CA2114358A1

公开(公告)日：1995-01-07

申请号：CA2114358

申请日：1994-01-27

Applicant: TEXACO DEVELOPMENT CORP

Inventor： VON KLOCK BYRON ,  ZUBER IRL L

IPC: B01D53/04 ,  C01B31/08 ,  C02F1/20 ,  C07C15/02 ,  B01D17/035 ,  C07C7/12

公开(公告)号：CA1062229A

公开(公告)日：1979-09-11

申请号：CA235544

申请日：1975-09-16

Applicant: TEXACO DEVELOPMENT CORP

Inventor： BENNETT RICHARD H ,  VON KLOCK BYRON ,  BROCKINGTON JAMES W

IPC: B01J23/90 ,  B01J37/00

Abstract: A process for removal of fluoride compounds from spent alkylation catalyst containing fluorosulfonic acid and sulfuric acid wherein hydrogen fluoride and fluorosulfonic acid, in the presence of water, are removed by vacuum distillation following which the remaining sulfuric acid rich fraction of the spent catalyst is treated with an alumina containing material to remove most of the remaining residual fluoride compounds and thereby provide a sulfuric acid effluent free of substantial amounts of fluoride compounds. The hydrogen fluoride recovered is reacted with sulfur trioxide to form fresh fluorosulfonic acid which is combined with sulfuric acid to provide fresh alkylation catalyst.

公开(公告)号：DE69724825T2

公开(公告)日：2004-04-08

申请号：DE69724825

申请日：1997-07-14

Applicant: TEXACO DEVELOPMENT CORP

Inventor： WEBSTER HENRY ,  VON KLOCK BYRON ,  VUONG DONH-CUONG ,  STEVENSON SAUNDERS ,  JOHNSON ROBERT

IPC: C10J3/72 ,  C01B3/52 ,  C01C1/16 ,  C02F1/04 ,  C10J3/46 ,  C10K1/00 ,  C10K1/12 ,  C10K1/06 ,  C10K1/10

Abstract: A process for minimizing evaporator scaling during the recovery of liquids and solids from the aqueous effluent discharged during a partial oxidation gasification, wherein the aqueous effluent contains ammonium chloride (NH4Cl). The aqueous effluent is evaporated to produce a distillate water and a brine having an NH4Cl concentration of about 10 to 60 weight percent. The brine can be further concentrated and ammonium chloride crystals are recovered. The distillate water is recycled to the gasification reaction. No effluent discharges to the environment.

公开(公告)号：DE69712765T2

公开(公告)日：2002-12-05

申请号：DE69712765

申请日：1997-07-14

Applicant: TEXACO DEVELOPMENT CORP

Inventor： WEBSTER HENRY ,  VON KLOCK BYRON

IPC: C23G1/00 ,  B08B3/00 ,  C10J20060101 ,  C23G20060101 ,  C23G1/02 ,  C23G1/08 ,  C23G1/10

Abstract: Fluoride-containing scale can be removed from metal surfaces such as titanium, titanium alloys, nickel alloys, and stainless steel by contacting the metal surfaces with an aqueous salt solution of an inorganic acid, including its hydrates. The cationic portion of the salt can be aluminum, iron and mixtures thereof. The anionic portion of the salt can be a chloride, a nitrate, a sulfate, and mixtures thereof. The contracting occurs in the absence of the addition of an acid, such as hydrochloric, nitric, or sulfuric acid. The presence of the aqueous salt solution with the dissolved fluoride scale does not accelerate or increase the normal rate of metal corrosion that can occur in the absence of the aqueous salt solution or any acidic cleaning agent.

公开(公告)号：DE69712765D1

公开(公告)日：2002-06-27

申请号：DE69712765

申请日：1997-07-14

Applicant: TEXACO DEVELOPMENT CORP

Inventor： WEBSTER HENRY ,  VON KLOCK BYRON

IPC: C23G1/00 ,  B08B3/00 ,  C10J20060101 ,  C23G20060101 ,  C23G1/02 ,  C23G1/08 ,  C23G1/10

Abstract: Fluoride-containing scale can be removed from metal surfaces such as titanium, titanium alloys, nickel alloys, and stainless steel by contacting the metal surfaces with an aqueous salt solution of an inorganic acid, including its hydrates. The cationic portion of the salt can be aluminum, iron and mixtures thereof. The anionic portion of the salt can be a chloride, a nitrate, a sulfate, and mixtures thereof. The contracting occurs in the absence of the addition of an acid, such as hydrochloric, nitric, or sulfuric acid. The presence of the aqueous salt solution with the dissolved fluoride scale does not accelerate or increase the normal rate of metal corrosion that can occur in the absence of the aqueous salt solution or any acidic cleaning agent.

公开(公告)号：CA2260953A1

公开(公告)日：1998-01-22

申请号：CA2260953

申请日：1997-07-14

Applicant: TEXACO DEVELOPMENT CORP

Inventor： TYREE RONALD FREDERICK ,  VON KLOCK BYRON ,  BRICKHOUSE PAUL ELLIS ,  STEVENSON JOHN SAUNDERS ,  KASSMAN JERROLD SAMUEL ,  WINTER JOHN DUCKETT ,  MAYOTTE GREGORY JOSEPH

IPC: C08J11/10 ,  C01B3/36 ,  C07C1/02 ,  C08J11/14 ,  C10G1/00 ,  C10G1/10 ,  C10J3/66 ,  C10J3/00

Abstract: An integrated liquefaction and gasification process converts bulk particulate halogen-containing waste plastic materials with minimal particle size reduction into a synthesis gas and a non-leachable, vitreous environmentally nontoxic slag. The process involves melting and cracking bulk particulate halogen-containing waste plastic material to form a lower boiling point, lower molecular weight halogen-containing oil composition which then undergoes partial oxidation in a quench gasifier to produce a synthesis gas. Any hazardous gases, liquids or solids that are produced can be purified into commercially valuable byproducts or recycled to the process, which does not release hazardous materials to the environment.

公开(公告)号：CA2260172A1

公开(公告)日：1998-01-22

申请号：CA2260172

申请日：1997-07-14

Applicant: TEXACO DEVELOPMENT CORP

Inventor： WEBSTER GEORGE HENRY JR ,  VON KLOCK BYRON

IPC: C23G1/00 ,  B08B3/00 ,  C10J20060101 ,  C23G20060101 ,  C23G1/02 ,  C23G1/08 ,  C23G1/10 ,  C23G1/24

Abstract: Fluoride-containing scale can be removed from metal surfaces such as titaniu m, titanium alloys, nickel alloys, and stainless steel by contacting the metal surfaces with an aqueous salt solution of an inorganic acid, including its hydrates. The cationic portion of the salt can be aluminum, iron and mixture s thereof. The anionic portion of the salt can be a chloride, a nitrate, a sulfate, and mixtures thereof. The contracting occurs in the absence of the addition of an acid, such as hydrochloric, nitric, or sulfuric acid. The presence of the aqueous salt solution with the dissolved fluoride scale does not accelerate or increase the normal rate of metal corrosion that can occur in the absence of the aqueous salt solution or any acidic cleaning agent.

公开(公告)号：DE3581969D1

公开(公告)日：1991-04-11

申请号：DE3581969

申请日：1985-04-03

Applicant: TEXACO DEVELOPMENT CORP

Inventor： VON KLOCK BYRON ,  GILMER WILLIAM NEWMAN

IPC: C10J3/46 ,  C10J3/48 ,  C10J3/52 ,  C10J3/82 ,  C10J3/84 ,  F25D17/02 ,  C01B3/50

Abstract: Deposition of ash in the outlet conduit (20) of a synthesis gas quench chamber is reduced or eliminated by providing a wetted-wall (44) at the mouth and throat of the outlet conduit.