Document 4J8GBVmbqZzzpLgy9ZXR137dN

FILE NAME: Chemical Abstracts (CHAB) DATE: 1950 DOC#: CHAB031 OCUM ENT DESCRIPTION: Abstract Originally Published in 1949 by Nagelschmidt 'H SOIS Chemical Abstracts 8020 Vol. 44 1949. The leaching of mineral supplements, e.g. Zn, B, As, in salt blocks is minimized by use of not more than 3% of edible mineral supplements of very limited soly. in water contg. up to 26% salt but sol. in the digestive fluids of animals. A. J. Ganz Trace halogen salt. Joseph A. Dunn and Frank G. Miller (to General Foods Corp.). U.S. 2,489,759, Nov. 29, 1949. The leaching of added halogen supplement from salt blocks is minimized by use of not more than 3% of edible halogen supplements, e.g. Ca bromobehenate, alk. earth fluoride, dithymol diiodide, of limited soly. in water and brine. A. J. Ganz Trace metal salt. Joseph A. Dunn and Frank G. Miller (to General Foods Corp.). U.S. 2,489,760, Nov. 29, 1949. The leaching of added metal supplements from salt blocks is minimized by use of not more than 3% of edible metal supplements, e.g. Co, Mn, or basic Cu car bonates, of limited soly. m water and brine. A. J. G. / Jr?6* J 0*?1 A. Dunn and Frank G. Miller U'S- 2-489-761-Nov. 29,1949. The leaching of added Fe supplements from salt blocks is minimized by use of not more than 3% of edible Fe compds., e.g. reduced Fe, FeO, Pe(OH)*, and Fe(OH)a, soly. in water and brine. A. J. Ganz Sulfur salt. Joseph A. Dunn and Frank G. Miller (to General Foods Corp.). U.S. 2,489,762, Nov. 29, 1949. rhe leaching of added S supplements from salt blocks is minimized by use of not more than 3% of edible S compds., e.g. Iaeunte, thioprotein, Et thlopalmltate, of limited soly in water and brine. A. J. Ganz 13- -CHEMICAL INDUSTRY AND MISCELLANEOUS INDUSTRIAL PRODUCTS 1. . C H IL I UN proEcceosnsoimndicusatnrides.finRanocbiaelrt dSe.veAlroipesmaenndt oJof htnheWc.hSepmeinccael 6 itsRceovmiepwouonf dlist.eraGtu.reGo. nMheoargltihs haanzdarJd.s oJ.f bFeorryblleisum(Ua.nSd (R. S. Aries & Assocs., New York, N.Y.). Ind. Eng. Chem. 42, 936-47(1950).--Economic and financial review Bur. Mines, Washington, D.C.). U.S. Bur. Mines, of the growth of chem. industry. M. H. Baker Inform. Ctrc. No. 7574, 23 pp.(1950). C. W. Schuck 100 chemical process companies--an analysis of their ~ Studies on aerosols. IX. Enhancement of irritating financial records, 1939-1949. Anon. Ind. Eng. Chem effectsof various substances on the eye, nose, and throat 42 948-73(1950). M. H Baker by partjctLate matter and liquid aerosols ia connection Postwar record good--future bright but--. M. F. with pollution of the atmosphere. Lucien Dautrebande, Crass, Jr. (Mfg. Chemists' Assoc., Washington, D.C.). d Roquell Capps and Ellen Weaver (Stanford Research Ind. Eng. Chem. 42 974-/(1950).--Chetn. production, 9 ^ - ) - `A rch' intern, pharmacodynamic employment and prices are related to those of other 82, 505-28(1950); cf. C.A. 44, 1209g.--Particulate inanufg. industries. M. H. Baker matter, such as fine carbon black particles, used motor oil Basic minerals--production high but reserves cause_ (1 to 2 p.p.m .), Diesel oil (0.2 to 0.3 p.p.m.) or NaCl concern. C. W. Merrill, G. W. Josephson, and T. W. aaepraorstolfsr,omis irthrietatpirnegsetnocethoefhguamseasn seuyceh, naosseS,OainadntdhrSoOat,,. Hunter (U.S. Bur. Mines, Washington, D.C.). Ind. Eng. Chem. 42, 978-83(1950).--Production statistics for These aerosols increase the irritating effect of such gases. mineral and mineral fuels, 1939-1949. M. H. Baker F r h mineral-oil aerosols (300 p.p.m.) were not irritating TaIlnboortga(nNicatlc.heSmecicuarlisty--sRuepspoluyrcmeseeBtsoadrde,maWndas.hinFgrtaonnk, e uw?it"h5rref"ereenccxepttol. thcoen"dsimtioongs". ovTehresbeigfcaicttises.are discussed D.C.). Ind. Eng. Chetn. 42, 984-9(1950).--Growth of M. L. C. Bernhcim the industrial inorg. chem. industry, 1939 vs. 1947. Total Rapid measurement of pollution rate in an atmosphere industry cost of fuel, production of individual products, -- of dust--application to mines. Edmond Leclerc and and consumption figures by industry are tabulated. oloJ 2/ifSenx(Univ- LUge- Be]S-)- Chimit 6* Industrie . . M. H. Baker 63, 363-8(1950).--Known and original methods for treat , Organic chemicals--production and value still expand- ment of mine dusts are described. The methods vary with J- H. Hibben (U.S. Tariff Comm., Washington, t size of dust and speed of air current. A granulometric D.C.). Ind. Eng. Chem. 42 , 990-7(1950).--Number of J method of measuring dusts is described as well as the app. establishments, production workers, total wages paid, There are 2 types of measurement: those relating to total value of products shipped, 1939 rr. 1947, are indicated for wt. of grains in suspension in an air current, and those org. chemicals, vegetable and animal oils, gum and wood concerned with the no. of grains per cc. F. S. Boig chemicals, drugs, and pharmaceuticals. Production,-- Some results of dust investigation in tilicoais research. quantity sold, and value of sales for a group of synthetic Hermann Gessner (Eidg. Materialprufungsanstalt, Zur org. chemicals described by product and production by ich, Switz.), Kolloid-Z. 115, 143-55(1949).--An ad classes of plastics and resin materials for 1949 are indi dress. Alfred M. Pommer cated. Rubber supply and consumption, including ex- g Dnst and the fight against silicosis. Pierre Seuillot. ports, turpentine production and rosin production, wood Res. ind. minerale 25, 179-94(1945) .--Methods of pro and gum, 1939-1949 are given. M. H. Baker tection are discussed. Michael Fleischer Chemical specialties--consumer demand continues to Mineralogical aspects of pneumoconiosis research. G. grow. F. M. Hoffhcins (U.S. Dept. Coinm., Washing-_ Nagelschmldt. Research (London) 2, 170-5(1949); J. ton, D.C.). Ind. Eng. Chem. 42 , 998-1001(1960).-- Am. Ceram. Soc. 32, No. 7, Ceram. Abstracts 177(1949).-- Number of establishments, production workers, total A review^ of the literature. Three different fibrotic wages paid, value of products shipped in soap, glycerol; mineralogical groups are distinguished: (1) quartz and i paints, varnishes; insecticides and fungicides; toilet , other forms of uncombined SiOj, (2) other silicate min jircpns.; essential oils; glue and gelatin; chem. special- " erals with or without quartz, and (3) fibrous silicates, j ties, general; compressed and liquefied gases; printing especially asbestos; the first two are discussed in more de- f inks; carbon black; together with the geographical loca tail. There appears to be a relation between SiOj "soly." j tion of the paint, varnish, pigment, and allied product in and fibrotic reaction. If the soly. is too high, as in silicic ` dustries; expenditures for plant and equipment in the -- acid sols and gels, the material is eliminated too fast to paint, varnish, pigment, and allied product and *oap, produce fibrosis; if It is too low, as in mixts. of quartz glycerol and related product industries, costs of fuel in these industries. M. H. Baker with A1 or with siliceous minerals, the fibrotic reaction is Chemical exports, imports off from 1947 high. C. C. ; retarded. Crystal structure appears Two condition seem to be neceaeary: to have little effect. (a) there must be a Concannon (U.S. Dept. Comm., Washington, D.C.). certain surface capable of releasing 8iOj to lung fluids and Ind. Eng. Chem. 42, 1002-6(1950).--Review of chemicals (b) the supply of SiO, from this surface must be main exported and imported by quantity and value 1939, 1947, tained for a considerable time. There Is an optimum size 1948, 1949. M. H. Baker of quartz for each animal. In inhalation, retention in man 1050 8021 13--Miscellaneous Industrial Products 8022 decreases from about 80% for 2 m particles to only about exposed to isopropyl benzene (I) vapor at 500 F. for 1 25% for 0.2 mparticles. 27 references. R. D. H. hr. Small quantities of decompd. I convert the gel par Contamination of the atmosphere by sulfur dioxide from ticles into a heterogeneous mixt. of black, gray, and light mineral piles at the coal mines. D. N. Kalyuzhnyi, S. A. particles which after sepn. can be returned to their original Davydov, L. G. Dukarskaya, and M. B. Aksel'rod. I form with no difference of available surface, av. pore size, Gigiena i Sanit. 1950, No. 5, 19-24.--SOj which evolves or d., by burning out the carbonaceous deposits. But from the mineral by-product piles from the reactions which 'i - i he frtlct.ions.are treated individually with I, the same take place in such aggregations under the influence of air differentiation in color shows up as before. Measure and moisture (as well as Oj) may reach 2-11 mg./cu. m.. . ments ofthe rate of adsorption of liquid I showed a differ proportion in the vicinity of such piles. Pyrites is re ence in the different fractions. Other developing methods sponsible for the greater fraction of such S02. The concn. compose treatment with soins, contg. coloring matter; drops off rapidly with distance but the SOj tpay be still de treatment with an adsorbable liquid and fractioning by tectable at several hundred meters from the site. The lutriation methods; treatment with materials that alter location of living quarters, etc. must be governed by these the elec, properties (and sepn. of the treated particles by considerations. G. M. J^osolapoff electrostatic methods) or magnetic properties. K. Fox Industrial safety gloves. Brit. Standards Inst., Lon Catalysts. Imperial Chemical Industries Ltd. Brit. don, S.W .l. Brit. Standard 1651:1950. 30 pp. 4s.--A 638,031, May 31, 1950. V catalysts may be prepd. in a description of 17 types of safety gloves, made of leather- - 3-stage process, which comprises : (1) grinding to a powder rubber, felt, polyvinyl chloride, and cotton, and the pur a mixt. comprising silica gel impregnated with a V compd. poses for which they are used. The size, materials, and which has been baked in the presence of acid with finely jinanuf. of each are specified. Methods of test and recom divided S; (2) adding water, kneading, and shaping the mendations for storage of rubber gloves are given. wet mixt. into predetd. forms by pelleting, molding, or L. M. M. extusion ; and (3) drying at a temp, not over 100 and Organic cation-exchangers. F. G. Prokhorov and M. removing the S by ignition or subliming at about 500. G. Korneyeva. latest. V T I ( Vscsoyus. Teplolekh. Inst.) In an example, 2500 g. of dried silica gel was finely ground, 16, No. G, 1-6(1947); Chem.Zcntr. (Russian Zone Ed.) 1948, and 790 ml. K vanadate soin. (KsO 2 and VsOt 2.5 parts I, 1040.--The manuf., compn., and properties of Wofatite" per 10 parts water) was added, followed by 73 ml. HjS0 4.- P, C, D, K, and KS, Zcocarb, Ambcrlith l-R-100, and the H20 . Water was added to impart a doughlike consist Russian Sulfocoals (brown or mineral coal treated with ency to the mixt. The latter was formed into pieces and oleum contg. 20% SOa) are reported. Wofatite P showed finally baked for several hrs. at about 500. To 2250 g. the greatest resistance to hot, alk. waters. The Sulfo-< of baked material were added 850 g. ground S and 1500 coals were satisfactory in acid media. M. G. Moore 2000 g. water, and the mixt. was ground. The cord Peanut protein for industrial utilization. Jett C. formed by extrusion of the paste was dried and roasted at Arthur, Jr. (Southern Regional Research Lab., New about 500. The process is especially suitable for rework Orleans, La.). J. Southern Research 1, No. 4, 0-14- ing spent V catalyst to produce fresh material for use as a (1949); cf. C.A. 44, 1210/.--A literature survey. 130 catalyst. P. j . Wilson, Jr. references. J. W. Cole Vanadium pentoxide catalysts. Win. C. Cooper (to Random noise in dielectric materials. R. F. Boyer Pittsburgh Coke and Chemical Co.). U.S. 2,510,803, (Dow Chem. Co., Midland, Mich.). J. Applied Rhys. . June 0, 1950. A VjOa catalyst for vapor-phase oxidation 21, 409-77(1950).--Random fluctuation currents occur of CioHg to phthalic anhydride and CH to maleic anhy in moist thin films of dielectrics under potential gradients dride is prepd. by coating an inert carrier with Va0 6 from lower than those causing breakdown. Moisture vapor a colloidal soin, under conditions such that the water is permeability increases with the d.-c. The fluctuations, evapd. as fast as the soin, is brought into contact with the about 1% of the steady d.c., are greater the more polar- carrier particles. The catalytic coating so produced is the nature of the polymer and the higher its moisture con- more adherent and of greater and more uniform catalytic lent. H. P. Knauss activity than that of previous catalysts. E.g., 60 g. of Utilization of chitin--prepn. of tartaric acid from glucos amine (Sumiki) 10. Theoretical bases of chemistry of vinyl ethers. I. Oxonium properties of vinyl alkyl ethers [lacrimators] (Shostakovskil) 10. Electrostatic precipita tor for continuous sampling of HS04 aerosols and otherair-borne particulate electrolytes (Sehadt) 1. NH4 vanadate is heated cautiously to drive off NHj and reoxidize any reduced V compds. The mass is then heated to 850, and the molten material is slowly poured with vigorous agitatior into 3000 ml. of distd. H-0 having a temp, of 20. The soin, is filtered to give a stable, deep reddish brown soin, contg. about 1.5% VjOf. Then 100 g. of 4-8 mesh fused AljOi is placed in a 500-ml. flask ro tating at 10-12 r.p.m. The colloidal soin, is added drop- Faith, W. L., Keyes, Donald B., and Clark, Ronald L.: Industrial Chemicals. New York: John Wiley & Sons. 1050. 662 pp. $8. Mironneau, L. : Isolants et technique de l'isolation (Encyclopdie du froid). Paris: J. B. Ballire. 1950. 292 pp. Fr. 1200. Reviewed in Chimie 6t industrie 63, 264(1950). , Weingaertner, E., and Winnacker, K.: Chemische Technologie. The Hague: Martinus NiihofT. 1949. 600 pp. DM. 38. Canadian Trade Index. 1950 cd. Toronto: Can. Mfg's. Assoc. 1950. 1100 pp. $7.50. Reviewed in Can. Chem. Process Inds. 34, 576(1950). wise while the water in the soin, is evapd. by application of heat to the bottom of the flask, in such a manner that no liquid is accumulated on the bottom of the flask. When 300 ml. of soin, has been added, the operation is complete. The AljOj particles are coated with a lustrous, gun-metal blue layer of ViOj amounting to about 4% of the total product. Other examples include prepn. of a catalyst for a fluidized catalytic process. The concn. of colloidal soin, may be 0.1-5% VsOt, preferably 1-3%. The color of the catalyst changes with the extent of drying of the coat, from gun-metal blue to red brown and finally to orange or yellow. It is preferable to stop the heating before reach ing orange or yellow. Other methods of prepn. of the colloidal soin, may be used, as well as other colloidal Separation of preferred fractions from apparently homo-geneous gel particle1-. Louis D. Rampino (to Shell De velopment Co.). U.S. 2,508,867, May 23, 1950. Im proved gels, usable as catalysts, catalyst carriers, contact agents, and adsorbents, are obtained from gels of oxides of j Si, Al, Zr, Mg, Sn, Th, Cr, and Mo, prepd. by the usual methods, by subjecting those gels in the form of granules to a developing treatment. In an example, silica gel, passed through 6 mesh and retained on 14 mesh screen is materials in addn. to VjOj . Edward S. Hanson Solid adsorbent. N. N. Das Gupta. Indian 39,855, Nov. 9, 1949. A solid product which may be used for re moving HjS from coal gas is obtained from blast-furnace gas by lowering the velocity of the blast-furnace gas, when the first crop of the dust is obtained, then washing the blast-furnace gas with water, decanting, and filtering, when the second crop of the dust is obtained, and finally passing the blast-furnace gas through elcctrofiltcrs to ob tain the third crop of th e d u s t. T h e dust is th e n w ash ed .