Abstract: Production of phosphoric acid by the wet process and by-product calcium sulphate hemihydrate. Sulphuric acid reacts with phosphate rock in such conditions that gypsum is precipitated, the resulting slurry is transferred to a second vessel in which the conditions are such that the gypsum recrystallises to calcium sulphate hemihydrate. Calcium sulphate hemihydrate so produced may be converted to cement and sulphuric acid by a process analogous to the anhydrite process for production of sulphuric acid. The phosphoric acid produced may be desulphated in a process integrated with the phosphoric production.

Abstract: The present invention provides stable aqueous hop extracts suitable for bittering beer which contain substantially no fixed hop seed oil. The hop extracts consists essentially of potassium isohumulate and between 16% and 72% by weight of water.

Abstract: The present invention provides a flavoring agent suitable for addition to fermented beer. The flavoring agent is an aqueous solution of water and potassium isohumulates substantially free from lupulones and fixed essential oils of hops. The invention also provides a method for flavoring beer by adding a hop extract consisting essentially of an aqueous solution containing between about 40% and 60% by weight of potassium isohumulates which are substantially free from lupulones and fixed and essential oils of hops.

Abstract: Sterilising composition comprising a chemical reactive compound with a perfumery alcohol or phenol such as bleaching, scouring, chemical cleansing and sanitary sterilising, e.g. mobile toilet, compositions are perfumed by the incorporation therein of one or more monomeric or oligomeric titanium or zirconium esters of a perfumery alcohol or phenol. Preferred esters are monomeric titanate esters of formula Ti(OR).sub.4 where R is the residue of a perfumery alcohol or phenol. Said oligomers are prepared by hydrolysis of a monomeric titanate or zirconate ester with from 50 to 90 moles water per 100 moles monomeric ester. Said sterilising compositions provide controlled release of perfume by hydrolysis of said esters during use and exhibit reduced degradation of said perfumery alcohol or phenol during storage.

Abstract: Cured aromatic resin compositions in which the resin is obtained by reacting (A) the reaction product of a mononuclear aralkyl halide and/or aralkyl ether with a molar excess of a phenol with 1-3 hydroxyl groups attached to the aromatic nucleus with (B) an epoxy compound containing at least two epoxy groups per molecule.