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
GB8633/25A
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.)
Lodge Cottrell Ltd
Original Assignee
Lodge Cottrell Ltd
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Publication date
Application filed by Lodge Cottrell LtdfiledCriticalLodge Cottrell Ltd
Publication of GB231536ApublicationCriticalpatent/GB231536A/en
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
C01B17/82—Preparation of sulfuric acid using a nitrogen oxide process
C01B17/84—Chamber process
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Chemical & Material Sciences
(AREA)
Organic Chemistry
(AREA)
Inorganic Chemistry
(AREA)
Treating Waste Gases
(AREA)
Abstract
In the production of sulphuric acid the roaster gases cooled during electrical purification from dust and arsenic are re-heated to the requisite temperature before admission to the chambers by the heat evolved in a denitrating device, for example of the Schmiedel type described in Specifications 149,648 and 184,966.
GB8633/25A1924-03-311925-03-31Process of and apparatus for the production of sulphuric acid
ExpiredGB231536A
(en)