公开(公告)号：GB721313A

公开(公告)日：1955-01-05

申请号：GB1129852

申请日：1952-05-05

Applicant: STANDARD OIL DEV CO

Inventor： LOWENSTEIN-LOM WALTER GERALD

IPC: A01N25/30 ,  C09K23/00

Abstract: An emulsifiable oil composition comprises a kerosine and a minor proportion of a phosphosulphurized hydrocarbon. Hydrocarbons specified are mineral oil fractions such as bright stock, lubricating oil, petroleum or paraffin wax; an olefin, olefin polymer, diolefin, aromatic or alkyl aromatic hydrocarbon or a terpene, such as dipentene or alpha pinene. The hydrocarbons may be phospho-sulphurized by reacting with a phosphous sulphide such as P2S3, P2S5, P4S3 and P4S7, or with a mixture of sulphur and phosphorus. Conventional emulsifying agents may also be added to the composition; oil-soluble metal petroleum sulphonates and naphthenates are referred to. In the example, an emulsion is prepared from 54.5 per cent kerosene, 0.5 per cent P2S5-treated bright stock and 45 per cent water. The Provisional Specification refers also to compositions of a petroleum fraction such as petroleum naphtha or mineral lubricating oil and a minor proportion of a phospho-sulphurized organic compound.ALSO:A pesticidal composition comprises a kerosene and a minor portion of a phospho-sulphurised hydrocarbon. Hydrocarbons specified are mineral oil fractions such as bright stock, lubricating oil, petrolatum or paraffin wax; an olefin, olefin polymer, diolefin, aromatic or alkyl aromatic hydrocarbon or a terpene, such as dipentene or alpha pinene. The hydrocarbons may be phospho-sulphurised by reacting with a phosphorus sulphide such as P2 S3, P2 S5, P4S3 and P4S7, or with a mixture of sulphur and phosphorus. Conventional emulsifying agents may also be added to the composition; oil-soluble metal petroleum sulphonates and naphthenates are referred to. In the example, an emulsion is prepared from 54.5 per cent. kerosine, 0.5 per cent. P2 S5 - treated bright stock, and 45 per cent. water. The Provisional Specification refers also to compositions of a petroleum fraction such as petroleum naphtha or mineral lubricating oil and a minor proportion of a phospho-sulphurised organic compound. The emulsions may be used as carriers for agricultural sprays, disinfectants, insecticides, fungicides and herbicides.

公开(公告)号：GB708095A

公开(公告)日：1954-04-28

申请号：GB460652

申请日：1952-02-21

Applicant: STANDARD OIL DEV CO

Inventor： LOWENSTEIN-LOM WALTER GERALD

IPC: C01C1/244

Abstract: In the recovery of sulphur values from flue gases containing sulphur dioxide, the flue gases enter the base of scrubber 1 and contact a counter-current of an aqueous slurry of magnesium hydroxide forming magnesium sulphite and/or sulphate. The mixture of unconverted hydroxide and sulphite and/or sulphate is withdrawn through pipe 2 to an oxidation and settling vessel 3, where it is blown with air entering at 4 to oxidise the sulphite to sulphate. The resulting solution of magnesium sulphate is passed through 5 to second vessel 6 where it is contacted with ammonia gas, entering at 7, to form ammonium sulphate which is recovered, and precipitate magnesium hydroxide which is separated. The magnesium hydroxide may be reslurried and recycled to the scrubber, by passing the precipitate from vessel 6 through 12 to vessel 3 from which the settled magnesium hydroxide slurry is returned to scrubber 1 by pipe 13. The ammonium sulphate solution from vessel 6 may be passed through a series of evaporators 9 and thence to crystal separator 11, e.g. a centrifuge, to recover the ammonium sulphate. The liquor from ammonium sulphate crystallization may be recirculated or fresh water may be added to the slurry at 14 as desired.