GB519082A - Improvements in or relating to the recovery of precious metals lost during catalyticconversion of gases - Google Patents

Improvements in or relating to the recovery of precious metals lost during catalyticconversion of gases

Info

Publication number
GB519082A
GB519082A GB27525/38A GB2752538A GB519082A GB 519082 A GB519082 A GB 519082A GB 27525/38 A GB27525/38 A GB 27525/38A GB 2752538 A GB2752538 A GB 2752538A GB 519082 A GB519082 A GB 519082A
Authority
GB
United Kingdom
Prior art keywords
gases
catalyticconversion
relating
recovery
precious metals
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB27525/38A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hercules Powder Co
Original Assignee
Hercules Powder Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hercules Powder Co filed Critical Hercules Powder Co
Publication of GB519082A publication Critical patent/GB519082A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C3/00—Cyanogen; Compounds thereof
    • C01C3/14—Cyanic or isocyanic acid; Salts thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/90—Regeneration or reactivation
    • B01J23/96—Regeneration or reactivation of catalysts comprising metals, oxides or hydroxides of the noble metals
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B21/00—Nitrogen; Compounds thereof
    • C01B21/20—Nitrogen oxides; Oxyacids of nitrogen; Salts thereof
    • C01B21/24—Nitric oxide (NO)
    • C01B21/26—Preparation by catalytic or non-catalytic oxidation of ammonia
    • C01B21/267—Means for preventing deterioration or loss of catalyst or for recovering lost catalyst
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C3/00—Cyanogen; Compounds thereof
    • C01C3/002—Synthesis of metal cyanides or metal cyanamides from elementary nitrogen and carbides
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C3/00—Cyanogen; Compounds thereof
    • C01C3/02—Preparation, separation or purification of hydrogen cyanide
    • C01C3/0208—Preparation in gaseous phase
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C3/00—Cyanogen; Compounds thereof
    • C01C3/02—Preparation, separation or purification of hydrogen cyanide
    • C01C3/0208—Preparation in gaseous phase
    • C01C3/0212—Preparation in gaseous phase from hydrocarbons and ammonia in the presence of oxygen, e.g. the Andrussow-process
    • C01C3/022—Apparatus therefor
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C3/00—Cyanogen; Compounds thereof
    • C01C3/02—Preparation, separation or purification of hydrogen cyanide
    • C01C3/0262—Preparation, separation or purification of hydrogen cyanide from cyanides
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/584—Recycling of catalysts

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

519,082. Recovering catalysts. HERCULES POWDER CO. Sept. 21, 1938, Nos, 27525 and 27526. Convention dates, Jan. 19, and Aug. 26, 1938. Drawings to Specification. [Class 1 (i)] In gas reactions using a precious metal catalyst at high temperature, e.g., ammonia oxidation, the gases leaving the converter are filtered to recover the particles of catalyst which they contain. Filtering media such as quartz wool, asbestos, porous porcelain &c. are suitable. The filter or filters should be placed as near as possible to the conversion chamber and before the point at which the reaction products condense.
GB27525/38A 1938-01-19 1938-09-21 Improvements in or relating to the recovery of precious metals lost during catalyticconversion of gases Expired GB519082A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US208746XA 1938-01-19 1938-01-19
US260838XA 1938-08-26 1938-08-26

Publications (1)

Publication Number Publication Date
GB519082A true GB519082A (en) 1940-03-15

Family

ID=26693993

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27525/38A Expired GB519082A (en) 1938-01-19 1938-09-21 Improvements in or relating to the recovery of precious metals lost during catalyticconversion of gases

Country Status (5)

Country Link
CH (1) CH208746A (en)
FR (1) FR843736A (en)
GB (1) GB519082A (en)
NL (1) NL60689C (en)
SE (1) SE102093C1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2647822A (en) * 1948-04-13 1953-08-04 Robert D Pike Nitric oxide recovery system
DE927566C (en) * 1952-01-29 1955-05-12 Heraeus Gmbh W C Process for the recovery of platinum from catalytic gas reactions
DE1027880B (en) * 1953-01-21 1958-04-10 Degussa Process for the separation of volatile platinum from gases
DE1044417B (en) * 1952-02-02 1958-11-20 Degussa Process for the separation of volatile platinum from gases
DE1077643B (en) * 1957-06-19 1960-03-17 Lentia Gmbh Method for collecting precious metals
DE1088033B (en) * 1956-07-06 1960-09-01 Lentia G M B H Method for collecting precious metals

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2647822A (en) * 1948-04-13 1953-08-04 Robert D Pike Nitric oxide recovery system
DE927566C (en) * 1952-01-29 1955-05-12 Heraeus Gmbh W C Process for the recovery of platinum from catalytic gas reactions
DE1044417B (en) * 1952-02-02 1958-11-20 Degussa Process for the separation of volatile platinum from gases
DE1027880B (en) * 1953-01-21 1958-04-10 Degussa Process for the separation of volatile platinum from gases
DE1088033B (en) * 1956-07-06 1960-09-01 Lentia G M B H Method for collecting precious metals
DE1077643B (en) * 1957-06-19 1960-03-17 Lentia Gmbh Method for collecting precious metals

Also Published As

Publication number Publication date
SE102093C1 (en) 1941-07-22
FR843736A (en) 1939-07-10
CH208746A (en) 1940-02-29
NL60689C (en) 1900-01-01

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