Sulfuric Acid → Calcium Sulfate

HRID 514653

반응식

HRID 514653 반응식
C(=O)([O-])[O-].[Ca+2:5].[Ca].S(CCS(O)(=O)=O)(O)(=O)=O.[S:17]([CH2:21][CH2:22][OH:23])([OH:20])(=[O:19])=[O:18].[S:24](=[O:28])(=[O:27])([OH:26])[OH:25]>O>[S:24]([O-:28])([O-:27])(=[O:26])=[O:25].[Ca+2:5].[S:17]([CH2:21][CH2:22][OH:23])([O-:20])(=[O:19])=[O:18].[Ca+2:5].[S:17]([CH2:21][CH2:22][OH:23])([O-:20])(=[O:19])=[O:18]

참가 물질

8

반응물 5

HCID 1118Sulfuric AcidHCID 7866Isethionic AcidHCID 80321,2-Ethanedisulfonic AcidHCID 10112Calcium Carbonate2회HCID 5460341Calcium

생성물 2

HCID 24497Calcium SulfateHCID 18784326Calcium isethionate

시약·촉매·용매 1

HCID 962Water용매

실험 절차

If calcium carbonate is used as a source of calcium, the sequence of addition needs to be altered. After ethionic acid is diluted with water and hydrolyzed into isethionic acid and sulfuric acid, calcium carbonate is carefully added the aqueous solution to form a slurry of calcium sulfate and calcium isethionate. Then calculated or excess amount of alkali metal sulfate is introduced into the reaction system to replace calcium in calcium isethionate with alkali metal in alkali metal sulfate.

후처리

  1. additionthe sequence of addition needs
  2. additionis carefully added the aqueous solution

출처 및 근거

ORD 기록
ord-1a4b8eb569d64c58ade33933be02544e
출처 데이터셋
uspto-grants-2015_08
특허 번호
US09108907B1

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