| 单词 | solvay process |
| 释义 | > as lemmasSolvay (or †Solvay's) process Solvay (or †Solvay's) process: a method of making sodium carbonate using brine, ammonia, and carbon dioxide (which is usually made as part of the process, by calcining limestone); also called ammonia-soda process. Hence Solvay plant, etc. ΘΚΠ the world > matter > chemistry > chemical reactions or processes > [noun] > chemical reactions or processes (named) > industrial processes > others Solvay (or Solvay's) process1879 contact process1903 thermite process1905 cyanamide process1922 Purex1951 1879 Sci. Amer. Suppl. 12 Apr. 2719/3 From these injurious impurities the Solvay soda is almost absolutely free. 1884 Jrnl. Soc. Chem. Industry 29 Dec. 633/1 In the Solvay process there have been introduced important improvements. 1888 C. L. Bloxam Chem. (ed. 6) 262 (heading) Ammonia soda process, or Solvay's process. 1947 R. E. Kirk & D. F. Othmer Encycl. Chem. Technol. I. 402 A 500-ton-per-day soda plant requires gas compressors of about 3000 to 4000 horsepower to handle the suction on the kilns and to compress the gas into the Solvay precipitating towers. 1950 Thorpe's Dict. Appl. Chem. (ed. 4) X. 835/1 The earliest Solvay plants used solid salt and dissolved it in a recycled alkaline water obtained from the scrubbing of calciner gases. 1966 McGraw-Hill Encycl. Sci. & Technol. (rev. ed.) II. 399/2 Calcium chloride, obtained as a waste product in the Solvay process. 1974 Encycl. Brit. Micropædia IX. 320/1 Its anhydrous form, soda ash (Na2CO3),..is now manufactured chiefly by the ammonia-soda (Solvay) process. < as lemmas |
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