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Article
Publication date: 1 April 1956

R.W. Kear

In this, the concluding part of Mr. Kear's paper, methods of reducing corrosion by flue‐gas condensates are discussed, including fuel selection, the addition of ‘inerts,’ dusts…

30

Abstract

In this, the concluding part of Mr. Kear's paper, methods of reducing corrosion by flue‐gas condensates are discussed, including fuel selection, the addition of ‘inerts,’ dusts and smokes. But it is the removal of the root causes of low‐temperature corrosion which is the preferred method.

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Anti-Corrosion Methods and Materials, vol. 3 no. 4
Type: Research Article
ISSN: 0003-5599

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Article
Publication date: 1 February 1956

R.W. Kear

The phenomenon of corrosion is so extensive that it is universally accepted as an inherent part of our present‐day commercial and industrial life. It is not surprising, therefore…

87

Abstract

The phenomenon of corrosion is so extensive that it is universally accepted as an inherent part of our present‐day commercial and industrial life. It is not surprising, therefore, to find corrosion problems associated with the most important of our chemical processes, the combustion of fuels. All our industrial fuels contain inorganic constituents, and during the combustion process certain of the more volatile constituents may be released in an active form to contaminate the combustion products.

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Anti-Corrosion Methods and Materials, vol. 3 no. 2
Type: Research Article
ISSN: 0003-5599

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Article
Publication date: 1 June 1954

G. Whittingham

In the first part of the paper, which outlines the laboratory and field investigations on corrosion by flue gases from solid fuel combustion carried out by the British Coal…

98

Abstract

In the first part of the paper, which outlines the laboratory and field investigations on corrosion by flue gases from solid fuel combustion carried out by the British Coal Utilisation Research Association, the effects of different flue gas constituents on corrosion phenomena are discussed. Laboratory studies of the effects of fuel type and method of combustion on the sulphuric acid content of combustion gases are described. The second part presents the results of measurements of the condensation characteristics of flue gases from water‐tube boilers in power stations and from various industrial boilers and furnaces; investigations into the use of additives are described briefly. The final section is concerned with some theoretical considerations of effects of fuel type, burning rate, etc., on the amounts of sulphuric acid likely to be present in the combustion products from domestic appliances.

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Anti-Corrosion Methods and Materials, vol. 1 no. 6
Type: Research Article
ISSN: 0003-5599

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Article
Publication date: 1 March 1956

R.W. Kear

Last month the mechanism of flue‐gas corrosion and methods of assessing it were discussed. Continuing this review the author describes some industrial studies of corrosion by…

78

Abstract

Last month the mechanism of flue‐gas corrosion and methods of assessing it were discussed. Continuing this review the author describes some industrial studies of corrosion by sulphur oxides in industrial appliances; sulphuric acid corrosion in domestic appliances and chimneys, flue‐gas corrosion by chlorine compounds and oxides of nitrogen.

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Anti-Corrosion Methods and Materials, vol. 3 no. 3
Type: Research Article
ISSN: 0003-5599

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Article
Publication date: 1 November 1957

Printed below is a selection of some of the many questions raised on the first day of the Corrosion Convention organized by CORROSION TECHNOLOGY at the Central Hall, Westminster…

166

Abstract

Printed below is a selection of some of the many questions raised on the first day of the Corrosion Convention organized by CORROSION TECHNOLOGY at the Central Hall, Westminster, on October 15–16. Unfortunately, space does not permit full justice to be done to this important aspect of the Convention, so great were the number of questions and discussions instigated by the 13 papers which were read, covering a wide field of corrosion problems. A selection of questions arisng from the second day's papers will be published next month.

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Anti-Corrosion Methods and Materials, vol. 4 no. 11
Type: Research Article
ISSN: 0003-5599

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Article
Publication date: 1 April 1962

W.E. Cowley

Heavy corrosion resulted from the sulphur dioxide content, temperature and variation in relative humidity of the combustion gases in mild‐steel stacks, and replacement had been…

24

Abstract

Heavy corrosion resulted from the sulphur dioxide content, temperature and variation in relative humidity of the combustion gases in mild‐steel stacks, and replacement had been necessary after about two years' service. However, as this case history shows, such stacks can be free from corrosion and in excellent condition after many years' service.

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Anti-Corrosion Methods and Materials, vol. 9 no. 4
Type: Research Article
ISSN: 0003-5599

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Article
Publication date: 1 September 1899

In a previous article we have called attention to the danger of eating tinned and bottled vegetables which have been coloured by the addition of salts of copper and we have urged…

78

Abstract

In a previous article we have called attention to the danger of eating tinned and bottled vegetables which have been coloured by the addition of salts of copper and we have urged upon the public that no such preparations should be purchased without an adequate guarantee that they are free from copper compounds. Copper poisoning, however, is not the only danger to which consumers of preserved foods are liable. Judging from the reports of cases of irritant poisoning which appear with somewhat alarming frequency in the daily press, and from the information which we have been at pains to obtain, there can be no question that the occurrence of a large number of these cases is to be attributed to the ingestion of tinned foods which has been improperly prepared or kept. It is not to be supposed that the numerous cases of illness which have been ascribed to the use of tinned foods were all cases of metallic poisoning brought about by the action of the contents of the tins upon the metal and solder of the latter. The evidence available does not show that a majority of the cases could be put down to this cause alone; but it must be admitted that the evidence is in most instances of an unsatisfactory and inconclusive character. It has become a somewhat too common custom to put forward the view that so‐called “ptomaine” poisoning is the cause of the mischief; and this upon very insufficient evidence. While there is no doubt that the presence in tinned goods of some poisonous products of decomposition or organic change very frequently gives rise to dangerous illness, so little is known of the chemical nature and of the physiological effects of “ptomaines” that to obtain conclusive evidence is in all cases most difficult, and in many, if not in most, quite impossible. A study of the subject leads to the conclusion that both ptomaine poisoning and metallic poisoning—also of an obscure kind—have, either separately or in conjunction, produced the effects from time to time reported. In view of the many outbreaks of illness, and especially, of course, of the deaths which have been attributed to the eating of bad tinned foods it is of the utmost importance that some more stringent control than that which can be said to exist at present should be exercised over the preparation and sale of tinned goods. In Holland some two or three years ago, in consequence partly of the fact that, after eating tinned food, about seventy soldiers were attacked by severe illness at the Dutch manœuvres, the attention of the Government was drawn to the matter by Drs. VAN HAMEL ROOS and HARMENS, who advocated the use of enamel for coating tins. It appears that an enamel of special manufacture is now extensively used in Holland by the manfacturers of the better qualities of tinned food, and that the use of such enamelled tins is insisted upon for naval and military stores. This is a course which might with great advantage be followed in this country. While absolute safety may not be attainable, adequate steps should be taken to prevent the use of damaged, inferior or improper materials, to enforce cleanliness, and to ensure the adoption of some better system of canning.

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British Food Journal, vol. 1 no. 9
Type: Research Article
ISSN: 0007-070X

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Article
Publication date: 1 December 1998

J. Bordzilowski and K. Darowicki

Industrial chimneys are a great part of environmental protection in industrial countries. In recent years many of them have been used to carrying away very aggressive gases from…

1906

Abstract

Industrial chimneys are a great part of environmental protection in industrial countries. In recent years many of them have been used to carrying away very aggressive gases from boilers and flue gas desulphurisation (FGD) units below acid dew‐point temperature. It is opf very important to modernize the old stacks and protect them against corrosion. The proper anti‐corrosion protection of modern high stacks is also an important technical and economical problem. In this paper the mechanism of acid dew‐point corrosion, as well as construction of industrial chimneys, methods of their anti‐corrosion protection and modernisation are described.

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Anti-Corrosion Methods and Materials, vol. 45 no. 6
Type: Research Article
ISSN: 0003-5599

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Article
Publication date: 1 December 1903

The final report of the Butter Regulations Committee has now been published and it is earnestly to be hoped that Regulations based on the Committee's Recommendations will at once…

29

Abstract

The final report of the Butter Regulations Committee has now been published and it is earnestly to be hoped that Regulations based on the Committee's Recommendations will at once be framed and issued by the Board of Agriculture. It will be remembered that in an Interim Report the Committee recommended the adoption of a limit of 16 per cent. for the proportion of water in butter, and that, acting on this recommendation, the Board of Agriculture drew up and issued the “Sale of Butter Regulations, 1902,” under the powers conferred on the Board by Section 4 of the Food Act of 1899. In the present Report the Committee deal with the other matters referred to them, namely, as to what Regulations, if any, might with advantage be made for determining what deficiency in any of the normal constituents of butter, or what addition of extraneous matter other than water, should raise a presumption until the contrary is proved that the butter is not “genuine.” The Committee are to be congratulated on the result of their labours—labours which have obviously been both arduous and lengthy. The questions which have had to be dealt with are intricate and difficult, and they are, moreover, of a highly technical nature. The Committee have evidently worked with the earnest desire to arrive at conclusions which, when applied, would afford as great a measure of protection—as it is possible to give by means of legislative enactments—to the consumer and to the honest producer. The thorough investigation which has been made could result only in the conclusions at which the Committee have arrived, namely, that, in regard to the administration of the Food Acts, (1) an analytical limit should be imposed which limit should determine what degree of deficiency in those constituents which specially characterise butter should raise a presumption that the butter is not “genuine”; (2) that the use of 10 per cent. of a chemically‐recognisable oil in the manufacture of margarine be made compulsory; (3) that steps should be taken to obtain international co‐operation; and finally, that the System of Control, as explained by various witnesses, commends itself to the Committee.

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British Food Journal, vol. 5 no. 12
Type: Research Article
ISSN: 0007-070X

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Article
Publication date: 1 July 1901

If additional evidence were needed of the connection between food supply and the spread of infectious disease, it would be found in a report recently presented to the Finsbury…

71

Abstract

If additional evidence were needed of the connection between food supply and the spread of infectious disease, it would be found in a report recently presented to the Finsbury Borough Council by its Medical Officer of Health, Dr. GEORGE NEWMAN. It appears that in the early part of May a number of cases of scarlet fever were notified to Dr. NEWMAN, and upon inquiry being made it was ascertained that nearly the whole of these cases had partaken of milk from a particular dairy. A most pains‐taking investigation was at once instituted, and the source of the supply was traced to a farm in the Midlands, where two or three persons were found recovering from scarlet fever. The wholesale man in London, to whom the milk was consigned, at first denied that any of this particular supply had been sent to shops in the Finsbury district, but it was eventually discovered that one, or possibly two, churns had been delivered one morning, with the result that a number of persons contracted the disease. One of the most interesting points in Dr. NEWMAN'S report is that three of these cases, occurring in one family, received milk from a person who was not a customer of the wholesale dealer mentioned above. It transpired on the examination of this last retailer's servants that on the particular morning on which the infected churn of milk had been sent into Finsbury, one of them, running short, had borrowed a quart from another milkman, and had immediately delivered it at the house in which these three cases subsequently developed. The quantity he happened to borrow was a portion of the contents of the infected churn.

Details

British Food Journal, vol. 3 no. 7
Type: Research Article
ISSN: 0007-070X

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