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INST UDOBRENIAM INSEKTOFUNGI
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INST UDOBRENIAM INSEKTOFUNGI
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Application filed by INST UDOBRENIAM INSEKTOFUNGIfiledCriticalINST UDOBRENIAM INSEKTOFUNGI
Priority to FR7412641ApriorityCriticalpatent/FR2267282A1/fr
Publication of FR2267282A1publicationCriticalpatent/FR2267282A1/fr
Application grantedgrantedCritical
Publication of FR2267282B1publicationCriticalpatent/FR2267282B1/fr
C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
C01B17/00—Sulfur; Compounds thereof
C01B17/69—Sulfur trioxide; Sulfuric acid
C01B17/74—Preparation
C01B17/76—Preparation by contact processes
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Chemical & Material Sciences
(AREA)
Organic Chemistry
(AREA)
Inorganic Chemistry
(AREA)
Treating Waste Gases
(AREA)
FR7412641A1974-04-101974-04-10Sulphuric acid prodn. by contact process - with sulphur trioxide absorption under controlled conditions
GrantedFR2267282A1
(en)
